GE.13 - 
  Agreement  
  Concerning the Adoption of Uniform Technical Prescriptions for 
Wheeled Vehicles , Equipment and Parts which can be Fitted and/or be 
Used on Wheeled Vehicles  and the Conditions for Reciprocal 
Recognition of Approvals Granted on the Basis of these Prescriptions1 
(Revision 2, including the amendments which entered into force on 16 October 1995)  
_________  
  Addendum 99:  Regulation No. 100  
  Revision 2 
Incorporat ing all valid text up to:  
Supplement 1 to the 01 series of amendments – Date of entry into force: 26 July 2012  
Supplement 2 to the 01 series of amendments – Date of entry into force: 15 July 2013  
02 series of amendments to the Regulation - Date of entry in to force : 15 July 2013  
  Uniform provisions concerning the approval of vehicles with regard to 
specific requirements for the electric power train  
_________  
UNITED NATIONS  
  
 1  Former title of the Agreement: Agreement Co ncerning the Adoption of Uniform Conditions of 
Approval and Reciprocal Recognition of  Approval for Motor Vehicle Equipment and Parts, done at 
Geneva on 20  March  1958.   E/ECE/324/Rev.2/Add.99/Rev. 2-E/ECE/TRANS/ 505/Rev.2/Add.99 /Rev.2  
   
 
12 August 2013  
 
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
3 Regulation No. 100  
  Uniform provisions concerning the approval of vehicles with 
regard to specific requirements for the electric power train  
Contents  
 Page  
Regulation  
1. Scope   ................................ ................................ ................................ ................................ .........   5 
2. Definitions  ................................ ................................ ................................ ................................ ........   5 
3. Application for approval  ................................ ................................ ................................ ..................   8 
4. Approval  9 
5. Part I: Requirement s of a vehicle with regard to its electrical safety  ................................ ...............   10 
6. Part II: Requirements of a Rechargeable Energy Storage System (REESS) with regard  
to its safety  ................................ ................................ ................................ ................................ .......  14 
7. Modifications and extension of the type approval  ................................ ................................ ............   21 
8. Conformity of production  ................................ ................................ ................................ .................   21 
9. Penal ties for non -conformity of production  ................................ ................................ .....................   22 
10. Production definitively discontinued  ................................ ................................ ................................   22 
11. Names and addresses of Technical Serv ices responsible for conducting approval tests and  
of Type Approval Authorities  ................................ ................................ ................................ ..........   23 
12. Transitional provisions  ................................ ................................ ................................ .....................   23 
Annex es 
1  Part 1  - Communication  concerning the approval or extension or refusal or withdrawal of approval  
or production definitively discontinued of a vehicle type with regard to its electrical safety pursuant  
to Regulation No. 1 00 ................................ ................................ ................................ ......................   24 
1  Part 2  - Communication  concerning the approval or extension or refusal or withdrawal of approval  
or production definitively discontinued of a REESS  type as component/separate technical unit  
pursuant to Regulation No. 100  ................................ ................................ ................................ ........   26 
2 Arrangements of the approval marks  ................................ ................................ ...............................   28 
3 Protection against direct contacts of parts under voltage  ................................ ................................ .  29 
4A  Isolation resistance measurement method for vehicle based tests  ................................ ....................   32 
4B  Isolation resistance measurement method for component based tests of a REESS  ..........................   36 
5 Confirmation method for function of on -board isolation resistance monitoring system  ..................   40 
6  Part 1  - Essential characteristics o f road vehicles or systems  ................................ ...........................   41 
6 Part 2  - Essential characteristics of REESS  ................................ ................................ ......................   44 
7 Determination of hydrogen emissions during the charge procedures of the REESS  ........................   45 E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
4  Appendix 1  - Calibration of equipment for hydrogen e mission testing ................................ ............   56 
 Appendix 2  - Essential characteristics of the vehicle family  ................................ ............................   60 
8 REESS test procedures  ................................ ................................ ................................ .....................   61 
 Appendix 1  - Procedure for conducting a standard cycle  ................................ ................................ .  62 
8A Vibration test  ................................ ................................ ................................ ................................ ....  63 
8B Thermal shock and cycling test  ................................ ................................ ................................ ........   65 
8C Mechanical shock  ................................ ................................ ................................ .............................   66 
8D Mechanical integrity  ................................ ................................ ................................ .........................   69 
8E Fire resistance  ................................ ................................ ................................ ................................ ...  71 
Appendix 1  - Dimension and technical data of firebricks  ................................ ................................   75 
8F External short circuit protection  ................................ ................................ ................................ .......  76 
8G Overcharge protection  ................................ ................................ ................................ ......................   78 
8H Over -discharge protection  ................................ ................................ ................................ ................   79 
8I Over -temperature protection  ................................ ................................ ................................ ............   81 
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
5   1.  Scope  
1.1. Part I:  Safety requirements with respect to the electric power train of road 
vehicles of categories M and N1, with a maximum design speed exceeding 25 
km/h, equipped with one or more traction motor(s) operated by ele ctric 
power and not permanently connected to the grid, as well as their high 
voltage components and systems which are galvanically connected to the 
high voltage bus of the electric power train.  
 Part I of t his regulation does not cover post-crash  safety re quirements of road 
vehicles.  
1.2. Part II: Safety requirements with respect to the Recha rgeable Energy Storage 
System (REESS ), of road vehicles of categories M and N equipped with one 
or more traction motors operated by electric power and not permanently 
connected to the grid . 
Part II of this Regulation does not apply to REESS(s) whose primary use is to 
supply power for starting the engine and/or lighting and/or other vehicle 
auxiliaries systems . 
  2.  Definitions  
For the purpose of this  Regulation the foll owing definitions apply:  
2.1.  "Active driving possible mode " means the vehicle mode when application of 
pressure to the accelerator pedal (or activation of an equivalent control) or 
release of the brake system will cause the electric power train to move t he 
vehicle.  
2.2. "Barrier " means the part providing protection against direct contact to the 
live parts from any direction of access.  
2.3. "Cell" means a single encased electrochemical unit containing one positive 
and one negative electrode which exhibits a voltage differential across its two 
terminals.  
2.4 "Conductive connection " means the connection using connectors to an 
external power supply when the rechargeable energy storage system ( REESS ) 
is charged.  
2.5. "Coupling system for charging the Rechargeab le Energy Storage System 
(REESS )" means the electrical circuit used for charging the REESS from an 
external electric power supply including the vehicle inlet.  
2.6. "C Rate " of "n C" is defined as the constant current of the tested -device , 
which takes 1/n h ours to charge or discharge the tested -device  between 0 per 
cent of the state of charge and 100 per cent of the state of charge . 
2.7. "Direct contact " means the contact of persons with live parts.  
  
 1  As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.),  document 
ECE/TRANS/WP.29/78/Rev.2, para. 2.  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
6 2.8. "Electrical chassis " means a set made of conductive pa rts electrically linked 
together, whose potential is taken as reference.  
2.9. "Electrical circuit " means an assembly of connected live parts which is 
designed to be electrically energized in normal operation.  
2.10.  "Electric energy conversion system " means  a system that generates and 
provides electric energy for electric propulsion.  
2.11.  "Electric power train " means the electrical circuit which includes the traction 
motor(s), and may include the REESS , the electric energy conversion system, 
the electronic converters, the associated wiring harness and connectors, and 
the coupling system for charging the REESS . 
2.12.  "Electronic converter " means a device capable of controlling and/or 
converting electric power for electric propulsion.  
2.13.  "Enclosure " means t he part enclosing the internal units and providing 
protection against direct contact from any direction of access.  
2.14.  "Exposed conductive part " means the conductive part which can be touched 
under the provisions of the protection IPXXB, and which become s 
electrically energized under isolation failure conditions.  This includes parts 
under a cover that can be removed without using tools.  
2.15.  "Explosion " means the sudden release of energy sufficient to cause pressure 
waves and/or projectiles that may caus e structural and/or physical damage to 
the surrounding of the tested -device.  
2.16.  "External electric power supply " means an alternating current (AC) or direct 
current (DC) electric power supply outside of the vehicle.  
2.17.  "High Voltage " means the classi fication of an electric component or circuit, if 
its working voltage is > 60 V and ≤ 1500 V DC or > 30 V and ≤ 1000 V AC 
root mean square (rms).  
2.18.  "Fire" means the emission of flames from a tested -device. Sparks and arcing 
shall not be considered as fl ames . 
2.19.   "Flammable electrolyte " means an electrolyte that contains substances 
classified as Class 3  "flammable liquid " under "UN Recommendations on the 
Transport of Dangerous Goods – Model Regulations (Revision 17 from 
June 2011), Volume I, Chapter 2. 3"2 
2.20.  "High voltage bus " means the electrical circuit, including the coupling system 
for charging the REESS that operates on high voltage.  
2.21.  "Indirect contact " means the contact of persons with exposed conductive 
parts.  
2.22.  "Live parts " means th e conductive part(s) intended to be electrically 
energized in normal use.  
  
  2  www.unece.org/trans/danger/publi/unrec/rev17/17files_e.html  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
7 2.23.  "Luggage compartment " means the space in the vehicle for luggage 
accommodation, bounded by the roof, hood, floor, side walls, as well as by 
the barrier and enclosure provided f or protecting the occupants from direct 
contact with live parts, being separated from the passenger compartment by 
the front bulkhead or the rear bulk head.  
2.24.  "Manufacturer " means the person or body who is responsible to the approval 
authority for all aspects of the type approval process and for ensuring 
conformity of production. It is not essential that the person or body be 
directly involved in all stages of the construction of the vehicle, system or 
component which is the subject of the approval proc ess. 
2.25.  "On-board isolation resistance monitoring system " means the device which 
monitors the isolation resistance between the high voltage buses and the 
electrical chassis.  
2.26.  "Open type traction battery " means a liquid type battery requiring refil ling 
with water and generating hydrogen gas released to the atmosphere.  
2.27.  "Passenger compartment " means the space for occupant accommodation, 
bounded by the roof, floor, side walls, doors, window glass, front bulkhead 
and rear bulkhead, or rear gate, a s well as by the barriers and enclosures 
provided for protecting the occupants from direct contact with live parts.  
2.28.  "Protection degree " means the protection provided by a barrier/enclosure 
related to the contact with live parts by a test probe, such as a test finger 
(IPXXB) or a test wire (IPXXD), as defined in Annex 3.   
2.29.  "Rechargeable Energy Storage System (REESS )" means the rechargeable 
energy storage system that provides electric energy for electric propulsion.  
 The REESS may include subsystem (s) together with the necessary ancillary 
systems for physical support, thermal management, electronic control and 
enclosures.  
2.30.  "Rupture " means opening(s) through the casing of any functional cell 
assembly created or enlarged by an event, large enough  for a 12 mm diameter 
test finger (IPXXB) to penetrate and make contact with live parts (see 
Annex  3). 
 2.31.  "Service disconnect " means the device for deactivation of the electrical circuit 
when conducting checks and services of the  REESS , fuel cell stac k, etc.  
2.32.  "State of Charge (SOC) " means the available electrical charge in a tested -
device expressed as a percentage of its rated capacity . 
 2.33.  "Solid insulator " means the insulating coating of wiring harnesses provided 
in order to cover and protect  the live parts against direct contact from any 
direction of access; covers for insulating the live parts of connectors, and 
varnish or paint for the purpose of insulation.  
2.34.  "Subsystem " means any functional assembly of REESS components.  
2.35.  "Tested -device " means either the complete REESS or the subsystem of a 
REESS that is subject ed to the tests prescribed by this Regulation . 
2.36.  "Type of REESS " means systems which do not differ significantly in such 
essential aspects as:  
(a) The manufacturer's tr ade name or mark ; E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
8 (b) The chemistry, capacity and physical dimensions of its cells; 
(c) The number  of cells , the mode of connection of the cells and the 
physical support  of the cell s; 
(d) The construction , materials  and physical dimensions of the  casing an d  
(e) The necessary ancillary devices  for physical support, thermal 
management  and electronic control . 
2.37.  "Vehicle type " means vehicles which do not differ in such essential aspects 
as: 
(a) Installation of the electric power train and the galvanically connected 
high voltage bus ; 
(b) Nature and type of electric power train and the galvanically connected 
high voltage components.  
2.38.  "Working voltage " means the highest value of an electrical circuit voltage 
root-mean -square (rms), specified by the manufa cturer, which may occur 
between any conductive parts in open circuit conditions or under normal 
operating condition. If the electrical circuit is divided by galvanic isolation, 
the working voltage is defined for each divided circuit, respectively.  
  3.  Application for approval  
3.1. Part I: Approval of a vehicle type with regard to its electrical safety, 
including the High Voltage System  
3.1.1. The application for approval of a vehicle type with regard to specific 
requirements for the electric power train s hall be submitted by the vehicle 
manufact urer or by his duly accredited r epresentative.  
3.1.2. It shall be accompanied by the under -mentioned documents in triplicate and 
following particulars:  
3.1.2.1. Detailed description of the vehicle type as regards th e electric power train 
and the galvanically connected high voltage bus.  
3.1.2.2.  For vehicles with REESS, additional evidence showing that the REESS is in 
compliance with the requirements of paragraph 6 . of this Regulation.  
3.1.3. A vehicle representative of the vehicle type to be approved shall be submitted 
to the Technical Service responsible for conducting the approval tests  and, if 
applicable, at the manufacturer's discretion with the agreement of the 
Technical Service, either additional vehicle(s), or those parts of the vehicle  
regarded by the Technical Service as essential for the test(s) referred to in the 
paragraph 6 . of this Regulation.  
3.2. Part II: A pproval of a Rechargeable Energy Storage System (REESS)  
3.2.1.  The application for approval of a ty pe of REESS or separate technical unit 
with regard to the s afety requirement s of the REESS  shall be submitted by 
the REESS  manufacturer or by his duly accredited representative.  
3.2.2.  It shall be accompanied by the under -mentioned documents in triplicate and 
comply with the following particulars:  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
9 3.2.2.1 .  Detailed description of the type of REESS or separate technical unit as 
regards the safety of the REESS . 
3.2.3.  A component(s) representative of the type of REESS  to be approved plus, at 
the manufacturer 's discretion, and with the agreement of the Technical 
Service, those parts of the  vehicle regarded by the Technical Service as 
essential for the test, shall be submitted to the Technical Service responsible 
for conducting the approval tests.  
3.3. The Type  Approval  Authority shall verify the existence of satisfactory 
arrangements for ensuring effective control of the conformity of production 
before type approval is granted.  
  4.  Approval  
4.1. If the type submitted for approval pursuant to this Regula tion m eets the 
requirements of the relevant parts of this Regulation, approval of that type 
shall be granted.  
4.2. An approval number shall be assigned to each type approved. Its first two 
digits (at present 02 for the Regulation in its form) shall indicate the series of 
amendments incorporating the most recent major technical amendments 
made to the Regulation at the time of issue of the approval. The same 
Contracting Party shall not assign the same number to another vehicle type.  
4.3. Notice of approval or of re fusal or of extension or withdrawal of approval or 
production definit ively discontinued of a vehicle type pursuant to this 
Regulation shall be communicated to the Parties to the Agreement applying 
this Regulation, by means of a form conforming to the model  in Annex 1 , 
Part 1 or 2 as appropriate  to this Regulation.  
4.4. There shall be affixed, conspicuously and in a readily accessible place 
specified on the approval form, to every vehicle or REESS or separate 
technical unit conforming to a type approved unde r this Regulation an 
international approval mark consisting of:  
4.4.1.  A circle surrounding the letter "E" followed by the distinguishing number of 
the country which has granted approval3. 
4.4.2.  The number of this Regulation, followed by the letter "R", a dash and the 
approval number to the right of the circle described in paragraph 4.4.1.  
4.4.3.  In the case of an approval of a REESS or a separate technical unit of the 
REESS the "R" shall be followed by the symbol  "ES".  
4.5. If the vehicle or REESS confo rms to a type approved under one or more other 
Regulations annexed to the Agreement in the country which has granted approval 
under this Regulation, the symbol prescribed in paragraph  4.4.1. need not be 
repeated; in this case the Regulation and approval nu mbers and the additional 
symbols of all the Regulations under which approval has been granted in the 
country which has granted approval under this Regulation shall be placed in 
vertical columns to the right of the symbol prescribed in paragraph 4.4.1.  
  
 3  The distinguishing numbers of the Contracting Parties to the 1958 Agreement are reproduced in 
Annex 3 to Consolidated Resolution on the Construc tion of Vehicles (R.E.3), document 
ECE/TRANS/WP.29/78/Rev.2/Amend.3  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
10 4.6. The approval mark shall be clearly legible and shall be indelible.  
4.6.1.  In the case of a vehicle, t he approval mark shall be placed on or close to the 
vehicle data plate affixed by the manufacturer . 
4.6.2.  In the case of a REESS  or separate technical un it approved as a REESS, the 
approval mark shall be affixed on the major element of the REESS by the  
manufacturer . 
4.7. Annex 2 to this Regulation gives examples of the arrangements of the 
approval mark.  
5. Part I: Requirements of a vehicle with regard to i ts 
electrical safety  
  5.1. Protection against electrical shock  
These electrical safety requirements apply to high voltage buses under 
conditions where they are not connected to external high voltage power 
supplies.  
  5.1.1.  Protection against direct conta ct 
Protection against direct contact with live parts is also required for vehicles 
equipped with any REESS type approved under Part II of this Regulation.  
The protection against direct contact with the live parts , shall comply with 
paragraphs 5.1.1.1. and 5.1.1.2. These protections (solid insulator, barrier, 
enclosure, etc.) shall not be able to be opened, disassembled or removed 
without the use of tools.  
5.1.1.1.  For protection of live parts inside the passenger compartment or luggage 
compartment, the pro tection degree IPXXD shall be provided.  
5.1.1.2.  For protection of live parts in areas other than the passenger compartment or 
luggage compartment, the protection degree IPXXB shall be satisfied.  
5.1.1.3.   Connectors  
Connectors (including vehicle inlet) a re deemed to meet this requirement if:  
(a) They comply with 5.1.1.1. and 5.1.1.2. when separated without the use 
of tools, or  
(b) They are located underneath the floor and are provided with a locking 
mechanism, or  
(c) They are provided with a locking mecha nism and other components 
shall be removed with the use of tools in order to separate the 
connector, or  
(d) The voltage of the live parts becomes equal or below DC 60V or equal 
or below AC 30V (rms) within one second after the connector is 
separated.  
5.1.1 .4. Service disconnect  
For a service disconnect which can be opened, disassembled or removed 
without tools, it is acceptable if protection degree IPXXB is satisfied under a 
condition where it is opened, disassembled or removed without tools.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
11 5.1.1.5.   Marking 
5.1.1.5.1.  In the case of a REESS having high voltage capability t he symbol shown in 
Figure 1 shall appear on or near the REESS .  The symbol background shall 
be yellow, the bordering and the arrow shall be black.  
Figure 1  
Marking of high voltage equip ment  
 
5.1.1.5.2.  The symbol shall also be visible on enclosures and barriers, which, when 
removed expose live parts of high voltage circuits.  This provision is optional 
to any connector for high voltage buses.  This provision shall  not apply to 
any of the following cases:  
(a) Where barriers or enclosures cannot be physically accessed, opened, 
or removed; unless other vehicle components are removed with the 
use of tools ; 
(b) Where barriers or enclosures are located underneath the veh icle floor.  
5.1.1.5.3.  Cables for high voltage buses which are not located within  enclosures shall 
be identified by having an outer covering with the colour orange . 
5.1.2.  Protection against indirect contact  
 Protection against indirect contact is also re quired for vehicles equipped with 
any REESS type approved under Part II of this Regulation.  
5.1.2 .1. For protection against electrical shock which could arise from indirect 
contact, the exposed conductive parts, such as the conductive barrier and 
enclosure , shall be galvanically connected securely to the electrical chassis by 
connection with electrical wire or ground cable, or by welding, or by 
connection using bolts, etc. so that no dangerous potentials are produced.  
5.1.2 .2. The resistance between all ex posed conductive parts and the electrical chassis 
shall be lower than 0.1 ohm when there is current flow of at least 
0.2 amperes.  
This requirement is satisfied if the galvanic connection has been established 
by welding.  
5.1.2 .3. In the case of motor vehic les which are intended to be  connected to the 
grounded external electric power supply through the conductive connection, a 
device to enable the galvanical connection of the electrical chassis to the 
earth ground shall be provided.  
The device should enable connection to the earth ground before exterior 
voltage is applied to the vehicle and retain the connection until after the 
exterior voltage is removed from the vehicle.  
Compliance to this requirement may be demonstrated either by using the 
connector specif ied by the car manufacturer, or by analysis.  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
12   5.1.3.  Isolation resistance  
5.1.3.1.  Electric power train consisting of separate Direct Current - or Alternating 
Current -buses  
If AC high voltage buses and DC high voltage buses are galvanically isolated 
from each other, isolation resistance between the high voltage bus and the 
electrical chassis shall have a minimum value of 100 Ω/volt of the working 
voltage for DC buses, and a minimum value of 500 Ω/volt of the working 
voltage for AC buses.  
The measurement sh all be conducted according to Annex 4 A "Isolation 
resistance measurement method  for vehicle based tests ". 
5.1.3.2.  Electric power train consisting of combined DC - and AC -buses  
If AC high voltage buses and DC high voltage buses are galvanically 
connected is olation resistance between the high voltage bus and the electrical 
chassis shall have a minimum value of 500 Ω/volt of the working voltage.  
However, if all AC high voltage buses are protected by one of the 2 
following measures, isolation resistance between the high voltage bus and the 
electrical chassis shall have a minimum value of 100 Ω/V of the working 
voltage:  
(a) Double  or more layers of solid insulators, barriers or enclosures that 
meet the requirement in paragraph 5.1.1. independently, for example 
wiring harness;  
(b) Mechanically  robust protections that have sufficient durability over 
vehicle service life such as motor housings, electronic converter cases 
or connectors;  
The isolation resistance between the high voltage bus and the electrical 
chassis ma y be demonstrated by calculation, measurement or a combination 
of both.  
The measurement shall be conducted according to Annex 4 A "Isolation 
resistance measurement method  for vehicle based tests ". 
5.1.3.3.   Fuel cell vehicles  
If the minimum isolation resis tance requirement cannot be maintained over 
time, then protection shall be achieved by any of the following:  
(a) Double or more layers of solid insulators, barriers or enclosures that 
meet the requirement in paragraph 5 .1.1. independently;  
(b) On-board  isolation resistance monitoring system together with a warning 
to the driver if the isolation resistance drops below the minimum required 
value. The isolation resistance between the high voltage bus of the 
coupling system for charging the REESS , which is not energized besides 
during charging the REESS , and the electrical chassis need not be 
monitored. The function of the on -board isolation resistance monitoring 
system shall be confirmed as described in Annex 5.  
5.1.3.4.  Isolation resistance requirement for the  coupling system for charging the 
REESS  
For the vehicle inlet intended to be conductively connected to the grounded 
external AC power supply and the electrical circuit that is galvanically E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
13 connected to the vehicle inlet during charging of the REESS , the is olation 
resistance between the high voltage bus and the electrical chassis shall be at 
least 1 M Ω when the charger coupler is disconnected. During the 
measurement, the traction battery may be disconnected.  
  5.2. Rechargeable Energy Storage System  (REESS ) 
5.2.1.  For a vehicle with a REESS, the requirement of either paragraph 5.2.1.1. or 
paragraph 5.2.1. 2. shall be satisfied.  
5.2.1.1.  For a REESS which has been type approved in accordance with Part II of this 
Regulation, it shall be installed in accordance w ith the instructions provided 
by the manufacturer of the REESS , and  in conformity with the description 
provided in Part 2 of  Annex 6 to this Regulation .  
5.2.1.2.  The REESS shall comply with the respective requirements of paragraph 6 . of 
this Regulation . 
  5.2.2.  Accumulation of gas  
Places for containing open type traction batteries  that may produce hydrogen 
gas shall be provided with a ventilation fan or a ventilation duct to prevent 
the accumulation of hydrogen gas.  
  5.3. Functional safety  
At least a momentary indication shall  be given to the driver when the vehicle 
is in "active driving possible mode''.  
However, this provision does not apply under conditions where an internal 
combustion engine provides directly or indirectly the vehicle´s propulsion 
power.  
When leaving the vehicle, the driver shall be informed by a signal (e.g. 
optical or audible signal) if the vehicle  is still in the active driving possible 
mode.  
If the on -board REESS can be externally charged by the user, vehicle 
movement by its own propulsion system shall be impossible as long as the 
connector of the external electric  power supply is physically connected to the 
vehicle inlet.  
This requirement shall be demonstrated by using the connector specified by 
the car manufacturer.  
The state of  the drive direction control unit shall be identified to the driver.  
  5.4. Determination of hydrogen emissions  
5.4.1.  This test shall be carried out on all vehicles equipped with open type traction 
batteries.  If the REESS has been approved under Part II o f this Regulation 
and installed in accordance with paragraph 5.2.1.1. this test can be omitted 
for the approval of the vehicle.  
5.4.2.  The test shall  be conducted following the method described in Annex 7 to the 
present Regulation. The hydrogen sampling a nd analysis shall  be the ones 
prescribed. Other analysis methods can be approved if it is proven that they 
give equivalent results.  
5.4.3.  During a normal charge procedure in the conditions given in Annex 7, 
hydrogen emissions shall  be below 125 g during 5  h, or below 25 x t 2 g 
during t 2 (in h).  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
14 5.4.4.  During a charge carried out by a charger presenting a failure (conditions 
given in Annex 7), hydrogen emissions shall  be below 42 g. Furthermore the 
charger shall  limit this possible failure to 30 minutes.  
5.4.5. All the operations linked to the REESS charging shall  be controlled 
automatically, included the stop for charging.  
5.4.6.  It shall not be possible to take a manual control of the charging phases.  
5.4.7.  Normal operations of connection and disconnectio n to the mains or power 
cuts shall  not affect the control system of the charging phases.  
5.4.8.  Important charging failures shall  be permanently  indicated . An important 
failure is a failure that can lead to a malfunction  of the charger during 
charging late r on. 
5.4.9.  The manufacturer has to indicate in the owner's manual, the conformity of the 
vehicle to these requirements.  
5.4.10.  The approval granted to a vehicle type relative to hydrogen emissions can be 
extended to different vehicle types belonging to the same family, in 
accordance with the definition of the family given in Annex 7, Appendix 2.  
6. Part II: Requirements of a Rechargeable Energy 
Storage System (REESS) with regard to its safety  
6.1. General  
 The procedures prescribed in Annex 8 of this Reg ulation shall be applied.  
6.2. Vibration  
6.2.1.  The test shall be conducted in accordance with Annex 8A to this Regulation.  
6.2.2.  Acceptance criteria  
6.2.2.1.  During the test, there shall be no evidence of:  
(a) Electrolyte  leakage ; 
(b) Rupture  (applicabl e to high voltage REESS (s) only) ; 
(c) Fire; 
(d) Explosion . 
Evidence of electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device . 
6.2.2.2.  For a high voltage REESS , the isolation resistance measured after the test in 
accordance with Annex 4B to this Regulation shall not be l ess than 
100 Ω/Volt.  
6.3.  Thermal shock and cycling  
6.3.1.  The test shall be conducted in accordance with Annex 8B to this Regulation.  
6.3.2.  Acceptance criteria  
6.3.2.1.  During the test, there shall be no evidence of:  
(a) Electrolyte  leakage ; 
(b) Rupture  (applicable to high voltage REESS(s) only) ; E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
15 (c) Fire; 
(d) Explosion . 
Evidence of electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the test ed-device.  
6.3.2.2.  For a high voltage REESS, the isolation resistance measured after the test in 
accordance with Annex 4B of this Regulation shall not be less than 
100 Ω/Volt.  
6.4. Mechanical impact  
6.4.1.  Mechanical Shock  
At the manufacturer´s choice the test may be performed as, either  
(a) Vehicle based tests in accordance with paragraph 6.4.1.1. of this 
Regulation, or  
(b)  Component based tests in accordance with paragraph 6.4.1.2. of this 
Regulation, or  
(c)  Any combination of (a) and (b) above, for different direction of 
vehicle travel.  
6.4.1.1.  Vehicle based test  
Compliance with the requirements of the acceptance criteria of 
paragraph  6.4.1.3. below may be demon strated by REESS(s) installed in 
vehicles that have been subjected to vehicle crash tests in accordance with 
Regulation No. 12 , Annex 3 or Regulation No. 94 , Annex 3 for frontal 
impact, and Regulation  No. 95 , Annex 4 for side impact. T he ambient 
temperatur e and the SOC shall be in accordance with the said Regulation s. 
The approval of a REESS tested under this paragraph shall be limited to the 
specific vehicle type.  
6.4.1.2.  Component based test  
The test shall be conducted in accordance with Annex 8 C to this Regulation.  
6.4.1.3.  Acceptance criteria  
During the test there shall be no evidence of:  
(a) Fire;  
(b) Explosion ; 
(c1)  Electrolyte leakage if tested according to p aragraph 6.4.1.1. : 
(i) For a period from the impact until 30 minutes after the impact 
there shall be no electrolyte spillage from the REESS into the 
passenger compartment ;  
(ii) No more than 7 per cent by volume of the REESS electrolyte 
capacity shall spill from the REESS to the outside of the 
passenger compartment (for open type traction batte ries a 
limitation to a maximum of 5 litres also applies) ; 
(c2) Electrolyte leakage if tested according to paragraph 6.4.1.2.  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
16 After the vehicle based test (paragraph 6.4.1.1.), a REESS which is located 
inside the passenger compartment shall remain in the in stalled location and 
the REESS components shall remain inside REESS boundaries. No part of 
any REESS that is located outside the passenger compartment shall enter the 
passenger compartment during or after the impact test procedures.  
After the component bas ed test (paragraph 6.4.1.2.) the tested -device shall be 
retained by its mounting and its components shall remain inside its 
boundaries.  
For a high voltage REESS the isolation resistance of the tested -device shall 
ensure at least 100 Ω/Volt for the whole REESS measured after the test in 
accordance with Annex 4A or Annex 4B to this Regulation, or the protection 
degree IPXXB shall be fulfilled  for the tested -device.  
For a REESS tested in accordance with paragraph 6.4.1.2., the evidence o f 
electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device . 
To confirm compliance to (c1) of paragraph 6.4.1.3. an appropriate coating 
shall, if necessary, be applied to the physical protection (casing)  in order to 
confirm if there is any electrolyte leakage from the REESS resulting from the 
impact test. Unless the manufacturer provides a means to differentiate 
between the leakage of different liquids, all liquid leakage shall be considered 
as the electr olyte.  
6.4.2.   Mechanical integrity  
This test applies only to a REESS intended for installation in vehicles of 
categor ies M1 and N 1. 
At the manufacturer’s choice, the test may be performed as, either :  
(a) Vehicle based test s in accordance with paragraph 6.4.2.1. of this 
Regulation, or  
(b) Component based test s in accordance with paragraph 6.4. 2.2. of this 
Regulation.  
6.4.2.1.  Vehicle specific test  
At the manufacturer ’s choice , the test may be performed as either : 
(a) A vehicle based dynamic tests in acc ordance with paragraph 6.4.2.1.1 . 
of this Regulation, or  
(b) A vehicle specific component test in accordance with 
paragraph  6.4.2.1.2 . of this Regulation, or  
(c) Any combination of (a) and (b) above, for different direction s of 
vehicle travel.  
When the REE SS is mounted in a position which is between a line from the 
rear edge of the vehicle perpendicular to the centre line of the vehicle and 
300 mm forward and parallel to this line, the manufacturer shall demonstrate 
the mechanical integrity performance of t he REESS in the vehicle to the 
Technical Service.  
The approval of a REESS tested under this paragraph shall be limited to 
specific vehicle type.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
17 6.4.2.1.1.  Vehicle based dynamic test  
Compliance with the requirements of the acceptance criteria of 
paragraph  6.4.2.3. below may be demonstrated by REESS(s) installed in 
vehicles that have been subjected to a vehicle crash test in accordance with 
the Annex 3 to Regulation s Nos. 12 or 94 for frontal impact, and Annex 4 to 
Regulation No. 95 for side impact. The ambi ent temperature and the SOC  
shall be in accordance with the said Regulation s. 
6.4.2.1.2.  Vehicle specific component test  
The test shall be conducted in accordance with Annex 8 D of this Regulation.  
The crush force replacing the prescribed force specified in  paragraph  3.2.1. of 
Annex 8D shall be determined by the vehicle manufacturer using the data 
obtained from either actual crash tests or its simulation as specif ied in  
Annex 3 of Regulation s No. 12 or No. 94 in the direction of travel and 
according to Anne x 4 to Regulation No. 95 in the direction horizontally 
perpendicular to the direction of travel. These forces shall be agreed by the 
Technical Service.  
The manufacturers may, in agreement with the Technical Services, use forces 
derived from the data obtai ned from alternative crash test procedures, but 
these forces shall be equal to or greater than the forces that would result from 
using data in accordance with the Regulations specified above.  
The manufacturer may define the relevant parts of the vehicle st ructure used 
for the mechanical protection of the REESS components. The test shall be 
conducted with the REESS mounted to this vehicle structure in a way which 
is representative of its mounting in the vehicle.  
6.4.2.2.  Component based test 
The test shall b e conducted in accordance with Annex 8D to this Regulation.  
REESS approved according to this paragraph shall be mounted in a position 
which is between the two planes; (a) a vertical plane perpendicular to the 
centre line of the vehicle located 420  mm rearw ard from the front edge of the 
vehicle, and (b) a vertical plane perpendicular to the centre line of the vehicle 
located 300 mm forward from the rear edge of the vehicle.   
The mounting restrictions shall be documented in Annex 6 - Part 2.  
The crush force specified in paragraph 3.2.1. of Annex 8D  may be replaced 
with the value declared by the manufacturer, where the crush force shall be 
documented in Annex 6 , Part 2 as a mounting restriction. In this case, the 
vehicle manufacture r who uses such REESS shall demonstrate, during the 
process of approval for Part I of this Regulation, that the contact force to the 
REESS will not exceed the figure declared by the REESS manufacturer . Such 
force shall be determined by the vehicle manufacturer using the data obtained  
from either actual crash test or its simulation as specified in Annex 3 of 
Regulation s Nos. 12 or 94 in the direction of travel and according to Annex  4 
to Regulation No. 95 in the direction horizontally perpendicular to the 
direction of travel. These for ces shall be agreed by the manufacturer together 
with the Technical Service.  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
18 The manufacturers may, in agreement with the Technical Services, use forces 
derived from the data obtained from alternative crash test procedures, but 
these forces shall be equal  to or greater than the forces that would result from 
using data in accordance with the regulations specified above.  
6.4.2.3.  Acceptance criteria  
During the test there shall be no evidence of:  
(a) Fire; 
(b) Explosion ; 
(c1) Electrolyte leakage if tested acc ording to paragraph 6.4.1.1.:  
(i) For a period from the impact until 30 minutes after the impact 
there shall be no electrolyte spillage from the REESS into the 
passenger compartment.  
(ii) No more than 7 per cent by volume of the REESS electrolyte 
capacity  shall spill from the REESS to the outside of the 
passenger compartment (for open type traction batteries a 
limitation to a maximum of 5 litres also applies).  
(c2) Electrolyte leakage if tested according to paragraph 6.4.2.2.  
For a high voltage REESS, the  isolation resistance of the tested -device shall 
ensure at least 100 Ω/Volt for the whole REESS measured in accordance with 
Annex 4A or Annex 4B of this Regulation  or the protection degree IPXXB 
shall be fulfilled for the Tested -Device.  
If tested according  to paragraph 6.4.2.2., the evidence of electrolyte leakage 
shall be verified by visual inspection without disassembling any part of the 
tested -device.  
To confirm compliance to (c1) of paragraph 6.4.2.3. an appropriate coating 
shall, if necessary, be appli ed to the physical protection (casing) in order to 
confirm if there is any electrolyte leakage from the REESS resulting from the 
impact test. Unless the manufacturer provides a means to differentiate 
between the leakage of different liquids, all liquid lea kage shall be considered 
as the electrolyte.  
6.5.  Fire resistance  
This test is required for REESS containing flammable electrolyte . 
This test is not required when the REESS as installed in the vehicle, is 
mounted such that the lowest surface of the casing  of the REESS is more than 
1.5m above the ground. At the option of the manufacturer, this test may be 
performed where the of the REESS’s lower surface is higher than 1.5  m 
above the ground. The test shall be carried out on one test sample.  
At the manufactu rer´s choice the test may be performed as , either :  
(a) A vehicle based test in accordance with paragraph 6.5.1. of this 
Regulation , or  
(b) A component  based test in accordance  with paragraph 6.5.2. of this 
Regulation.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
19 6.5.1.  Vehicle based test  
The test shall be conducted in accordance with Annex 8 E paragraph 3.2.1. of 
this Regulation.  
The approval of a REESS tested according to this paragraph shall be limited 
to approvals for a specific vehicle type.  
6.5.2.   Component based test  
The test shall be conduct ed in accordance with Annex 8 E paragraph 3.2.2. of 
this Regulation.  
6.5.3. Acceptance criteria  
6.5.3.1. During the test, the tested -device shall exhibit no evidence of explosion . 
6.6. External short circuit protection   
6.6.1.  The test shall be conducted in  accordance with Annex 8 F of this Regulation.  
6.6.2.  Acceptance criteria;  
6.6.2.1.   During the test there shall be no evidence of : 
(a) Electrolyte leakage ; 
(b) Rupture (applicable to high voltage REESS(s) only) ; 
(c) Fire; 
(d) Explosion.  
Evidence of electro lyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device.  
6.6.2.2.  For a high voltage REESS , the isolation resistance measured after the test in 
accordance with Annex 4  B to this Regulation shall not be less than 
100 Ω/Volt.  
6.7. Overcharge protection  
6.7.1.  The test shall be conducted in accordance with Annex 8 G to this Regulation.  
6.7.2.  Acceptance criteria  
6.7.2.1.  During the test there shall be no evidence of:  
(a) Electrolyte leakage ; 
(b) Rupture (applicable to hig h voltage REESS(s) only) ; 
(c) Fire; 
(d) Explosion.  
Evidence of electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device.  
6.7.2.2.  For a high voltage REESS, the isolation resistance measured after the te st in 
accordance with Annex 4B to this Regulation shall not be less than 
100 Ω/Volt.  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
20 6.8. Over -discharge protection  
6.8.1.  The test shall be conducted in accordance with Annex 8 H to this Regulation.  
6.8.2.  Acceptance criteria  
6.8.2.1.   During the test there shall be no evidence of:  
(a) Electrolyte leakage ; 
(b) Rupture (applicable to high voltage REESS(s) only) ; 
(c) Fire; 
(d) Explosion.  
Evidence of electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device . 
6.8.2.2.  For a high voltage REESS the isolation resistance measured after t he test in 
accordance with Annex 4B to this Regulation shall not be less than 
100 Ω/Volt.  
6.9. Over -temperature protection  
6.9.1.  The test shall be conducted in accordance with Annex 8 I to this Regulation.  
6.9.2.  Acceptance criteria  
6.9.2.1.  During the test there shall be no evidence of:  
(a) Electrolyte leakage ; 
(b) Rupture (applicable to high voltage REESS(s) only) ; 
(c) Fire; 
(d) Explosion.  
Evidence of electrolyte leakage shall be verified by visual inspection without 
disassembling any part of the tested -device.  
6.9.2.2. For a high voltage REESS, the isolation resistance measured after the test in 
accordance with Annex 4B to this Regulation shall not be less than 
100 Ω/Volt.  
6.10.  Emission  
Possible emission of gases caused by the energy conversion process during 
normal use shall be considered.  
6.10.1.  Open type traction batteries shall meet the requirements of paragraph  5.4. of 
this Regulation with regard to hydrogen  emissions.  
Systems with a closed chemical process shall be considered as emission -free 
under normal operation (e.g. lithium -ion battery).  
The closed chemical process shall be described and documented by the 
battery manufacturer in Annex 6 - Part 2.   
Othe r technologies shall be evaluated by the manufacturer and the Technical 
Service regarding any possible emissions under normal operation.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
21 6.10.2.  Acceptance criteria  
For hydrogen emissions see paragraph 5.4. of this Regulation.  
For emission free systems wi th closed chemical process no verification is 
necessary.  
  7.  Modification s and extension of the type approval  
7.1. Every modification of the vehicle  or REESS  type with regard to this 
Regulation shall be notified to the Type Approval Authority which appr oved 
the vehicle or REESS type. The Authority  may then either:  
7.1.1.  Consider that the modifications made are unlikely to have an appreciable 
adverse effect and that in any case the vehicle  or the REESS  still complies 
with the requirements, or  
7.1.2.  Requ ire a further test report from the Technical Service responsible for 
conducting the tests.  
7.2. Confirmation or refusal of approval, specifying the alteration, shall be 
communicated by the procedure specified in paragraph 4.3. above to the 
Parties to the A greement applying this Regulation.  
7.3. The Type Approval Authority issuing the extension of approval shall assign a 
series number to each communication form drawn up for such an extension 
and inform thereof the other Parties to the 1958 Agreement applying  the 
Regulation by means of a communication form conforming to the model in 
Annex 1 (Part 1 or Part 2)  to this Regulation.  
  8.  Conformity of production  
8.1. Vehicle s or REESS  approved under this Regulation shall be so manufactured 
as to conform to the ty pe approved by meeting the requirements  of the 
relevant part(s) of this Regulation . 
8.2. In order to verify that the requirements of paragraph 8.1. are met, appropriate 
production checks shall be carried out.  
8.3. The holder of the approval shall, in parti cular:  
8.3.1.  Ensure the existence of procedures for the effective quality control of 
vehicles  or REESS ; 
8.3.2.  Have access to the testing equipment necessary for checking the conformity 
of each approved type;  
8.3.3.  Ensure that test result data are record ed and that the annexed documents 
remain available for a period to be determined in agreement with the Type 
Approval Authority ; 
8.3.4.  Analyse the results of each type of test, in order to verify and ensure the 
consistency of characteristics of the vehicle  or REESS , making allowance for 
permissible variations in industrial production;  
8.3.5.  Ensure that for each type of vehicle or component type at least the tests 
prescribed in the relevant part(s) of this  Regulation are carried out;  E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
22 8.3.6.  Ensure that any set of samples or test pieces giving evidence of non -
conformity with the type of test in question shall give rise to a further 
sampling and test. All necessary steps shall be taken to re -establish 
conformity of the corresponding production.  
8.4. The Type A pproval Authority  which has granted type approval may at any 
time verify the conformity control methods applied in each production unit.  
8.4.1.  At every inspection, the test records and production records shall be 
presented to the visiting inspector.  
8.4.2 . The inspector may take samples at random to be tested in the manufacturer's 
laboratory. The minimum number of samples may be determined according 
to the results of the manufacturer's own checks.  
8.4.3.  When the quality level appears unsatisfactory or whe n it seems necessary to 
verify the validity of the tests carried out in application of paragraph  8.4.2. , 
the inspector shall select samples to be sent to the technical service which has 
conducted the type approval tests.  
8.4.4. The competent Authority may carry out any test prescribed in this 
Regulation.  
8.4.5. The normal frequency of inspections by the Type Approval Authority  shall 
be one per year. If unsatisfactory results are recorded during one of these 
visits, the Type Approval Authority  shall ensure t hat all necessary steps are 
taken to re -establish the conformity of production as rapidly as possible.  
  9.  Penalties for non -conformity of production  
9.1. The approval granted in respect of a vehicle /REESS  type, pursuant to this 
Regulation may be withdra wn if the requirements laid down in paragraph 8. 
above are not complied with, or if the vehicle /REESS  or its components fail 
to pass the tests provided for in paragraph  8.3.5. above.  
9.2. If a Contracting Party to the Agreement applying this Regulation wit hdraws 
an approval it has previously granted, it shall forthwith so notify the other 
Contracting Parties applying this Regulation, by means of a communication 
form conforming to the Model in Annex 1  (Part 1 or Part 2)  to this 
Regulation.  
  10.  Production definit ively discontinued  
If the holder of the approval completely ceases to manufacture a 
vehicle/REESS type approved in accordance with this Regulation, he shall so 
inform the Authority which granted the approval. Upon receiving the relevant 
communicatio n, that Authority shall inform thereof the other Contracting 
Parties to the 1958 Agreement applying this Regulation by means of a 
communication form conforming to the model in Annex 1  (Part 1 or Part 2)  
to this Regulation.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
23 11. Names and addresses of Techni cal Services 
responsible for conducting approval tests and of 
Type Approval Authorities  
The Contracting Parties to the 1958 Agreement applying this Regulation shall 
communicate to the United Nations Secretariat the names and addresses of 
the Technical Serv ices responsible for conducting approval tests and the 
Type Approval Authorities which grant approval and to which forms 
certifying approval or extension or refusal or withdrawal of approval or 
production definit ively discontinued, issued in other countrie s are to be sent.  
  12.  Transitional provisions  
12.1.  As from the official date of entry into force of the  02 series of amendments, 
no Contracting Party applying this Regulation shall refuse to grant approval 
under this Regulation as amended by the 02 series of amendments.  
12.2.  As from  [36] months after the date of entry into force  of the 02 series of 
amendments , Contracting Parties applying this Regulation shall grant 
approvals only if the vehicle type to be approved meets the requirements of 
this Regula tion as amended by the  02 series of amendments.  
12.3.  Contracting Parties applying this Regulation shall continue to grant approvals 
to those types of vehicles which comply with the requirements of this 
Regulation as amended by the preceding series of amen dments during the 
[36] months' period which follows the date of entry into force of the 02 series 
of amendments.  
12.4.  Contracting Parties applying this Regulation shall not refuse to grant 
extensions of approval to the preceding series of amendments to th is 
Regulation.  
12.5.  Notwithstanding  the transitional provisions above, Contracting Parties whose 
application of this Regulation comes into force after the date of entry into 
force of the most recent series of amendments are not obliged to accept 
approvals  which were granted in accordance with any of the preceding series 
of amendments to this Regulation.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 1 – Part 1  
24 Annex 1  - Part 1  
  Communication  
(Maximum  format:  A4 (210 x 297 mm))  
1 
Concerning2:  Approval granted , 
  Approval extended , 
  Approval refused , 
  Approval withdrawn , 
  Production  definit ively discontinued , 
of a vehicle  type with regard to its electrical safety  pursuant to Regulation No. 100  
Approval No. ........ ....................................  Extension No. ....... .................................... . 
 
1. Trade name or mark of the vehicle:  ................................ ................................ .............   
2. Vehicle type:  ................................ ................................ ................................ ................   
3. Vehicle category:  ................................ ................................ ................................ .........   
4. Manufacturer's name and address:  ................................ ................................ ...............   
  ................................ ................................ ................................ ................................ ......  
5. If applicable, name and address of manufacturer's representative:  ..............................   
  ................................ ................................ ................................ ................................ ......  
6. Description of the vehicle:  ................................ ................................ ............................   
6.1. REESS type:  ................................ ................................ ................................ ..................   
6.1.1.  The approval number of the REESS or descriptions of the REESS2 
6.2. Working voltage: ................................ ................................ ................................ ...........   
6.3. Propulsion system (e.g. hybrid, electric):  ................................ ................................ ......  
7. Vehicle submitted for approval on:  ................................ ................................ ..............   
  
 1  Distinguishing number of the country which has granted/extended/refused/withdrawn approval (see 
approval provisions in the Regulation).  
 2  Strike out what does not apply.   
Issued by:    Name of administration:  
………… .......................  
………… .......................  
………… .......................  
………… .......................  
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 1 – Part 1  
 
25 8. Technical Service responsible for conducting approval tests: ................................ ......  
  ................................ ................................ ................................ ................................ ......  
9. Date of  report issued by that Service :  ................................ ................................ ..........   
10. Number of report issued by that Service :  ................................ ................................ .....  
11. Location of the approval mark:  ................................ ................................ ....................   
12. Reason(s) for extension of approval (if applicable)2:  ................................ ...................   
13. Approval granted/extended/refused/withdrawn2:  ................................ .........................   
14. Place:  ................................ ................................ ................................ ............................   
15. Date:  ................................ ................................ ................................ .............................   
16. Signature:  ................................ ................................ ................................ .....................   
17. The documents filed with the request for approval or extension may be obtained on 
request.  
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 1 – Part 2  
26 Annex 1 – Part 2  
  Communication  
(Maximum  format: A4 (210 x 297 mm))  
 
 
 
Concerning:2  Approval granted  
   Approval extended  
   Approval refu sed 
   Approval withdrawn  
   Production definit ively discontinued  
of a REESS type as component/separate technical unit2 pursuant to Regulation No.  100 
Approval No. ........ …………………..    Extension No. ....... .................................................. . 
1. Trade name or mark of the REESS : ................................ ................................ ..............   
2. Type of REESS : ................................ ................................ ................................ ............   
3. Manufacturer's name and address:  ................................ ................................ ................   
4. If applicable, name and address of manufacturer's representative:  ...............................   
5. Description of the REESS : ................................ ................................ ............................   
6. Installation restrictions applicable to the REESS as descr ibed in paragraphs 6.4 
and 6.5:  ................................ ................................ ................................ ..........................   
7. REESS submitted for approval on:  ................................ ................................ ...............   
8. Technical Service responsible for conducting approval tests: ................................ .......  
9. Date of report issued by that Service:  ................................ ................................ ...........   
10. Number of report issued by that Service:  ................................ ................................ ......  
11. Location of the approval mar k: ................................ ................................ .....................   
12. Reason(s) for extension of approval (if applicable)2: ................................ ....................   
13. Approval granted/extended/refused/withdrawn2: ................................ ..........................   
14. Place:  ................................ ................................ ................................ .............................   
  
 1 Distingui shing  number of the country which has granted/extended/refused/withdrawn approval 
(see approval provisions in the Regulation).  
 2 Strike out what does not apply.  issued by :  Name of administration:  
................................. ..... 
......................................  
......................................  
1 
  
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 1 – Part 2  
 
 
27 15. Date:  ................................ ................................ ................................ ..............................   
16. Signature:  ................................ ................................ ................................ ......................   
17. The documents filed with the request for approval or extension may be obtained on 
request.  
 
 
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 2  
28 Anne x 2 
  Arrangements of the approval marks  
Model A  
(See paragraph 4.4. of this Regulation)  
Figure 1  
     a = 8 mm min.  
The approval mark in Figure 1 affixed to a vehicle shows that the road vehicle type 
concerned has been approved in the Netherlands (E  4), pursuant to Regulation No.  100, and 
under the approval number 0 22492. The first two digits of the approval number indicate 
that the approval was granted in accordance with the requirements of Regulation No. 100 as 
amended by 0 2 series of amendments.  
Figure 2  
       
a = 8 mm min.  
The approval mark in Figure 2 affixed to a REESS shows that the REESS type 
("ES") concerned has been approved in the Netherlands (E  4), pursuant to Regulation No. 
100, and under the approval number 0 22492. The first two digits  of the approval number 
indicate that the approval was granted in accordance with the requirements of Regulation 
No. 100 as amended by 0 2 series of amendments.  
Model B  
(See paragraph 4.5. of this Regulation)  
 
a = 8 mm min.  
The above approval mark affixe d to a vehicle shows that the road vehicle concerned 
has been approved in the Netherlands (E4) pursuant to Regulations Nos. 100 and 42*. The 
approval number indicates that, at the dates when the respective approvals were granted, 
Regulation No.  100 was ame nded by the 0 2 series of amendments and Regulation No. 42 
was still in its original form.  
  
 *  The latter number is given only as an example.   
 
100 02 2492  
42 00 1628  
 
 100 R - 022492  
100 RES - 022492  
 E/ECE/ 324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 3  
29 Annex 3  
  Protection against direct contacts of parts under voltage  
1. Access probes  
Access probes to verify the protection of persons against acc ess to live parts 
are given in T able 1.  
2. Test conditions  
The access probe is pushed against any openings of the enclosure with the 
force specified in Table 1. If it partly or fully penetrates, it is placed in every 
possible position, but in no case shall the stop face full y penetrate through the 
opening.  
Internal barriers are considered part of the enclosure   
A low -voltage supply (of not less than 40 V and not more than 50 V) in series 
with a suitable lamp should be connected, if necessary, between the probe 
and live parts inside the barrier or enclosure.  
The signal -circuit method should also be applied to the moving live parts of 
high voltage equipment.  
Internal moving parts may be operated slowly, where this is possible.  
3. Acceptance conditions  
The access probe shall not touch live parts.  
If this requirement is verified by a signal circuit between the probe and live 
parts, the lamp shall not light.  
In the case of the test for IPXXB, the jointed test finger may penetrate to its 
80 mm length, but the stop face (diameter 50 m m x 20 mm) shall not pass 
through the opening. Starting from the straight position, both joints of the test 
finger shall be successively bent through an angle of up  
to 90  degree s with respect to the axis of the adjoining section of the finger 
and shall be  placed in every possible position.  
In case of the tests for IPXXD, the access probe may penetrate to its full 
length, but the stop face shall not fully penetrate through the opening.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 3  
 
30 Table 1  
Access probes for the tests for protection of persons against a ccess to hazardous parts  
E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 3  
 
31 Figure 1  
Jointed test finger  
 
Material: metal, except where otherwise specified  
Linear dimensions in millimeters  
Tolerances on dimensions without specific tolerance:  
(a)  Nn angles: 0/ -10°; 
(b)  On linear dimensions: up to 25 mm: 0/ -0.05 mm over 25 mm: ±0.2 mm  
Both joints shall permit movement in the same plane and the same direction through an 
angle of  90° with a 0 to +10° tolerance.  R2 ± 0.05 R4 = 0.05  
spherical  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4A  
 
32 Annex 4 A 
  Isolation resistance measurement method  for vehicle based 
tests  
1. General   
The is olation resistance for each high voltage bus of the vehicle shall be 
measured or shall be determined by calculation using measurement values 
from each part or component unit of a high voltage bus (hereinafter 
referred to as the "divided measurement").  
2. Measurement method  
The isolation resistance measurement shall be conducted by selecting an 
appropriate measurement method from among those listed in 
paragraphs  2.1. through 2.2.  of this annex , depending on the electrical 
charge of the live parts or the iso lation resistance, etc.  
The range of the electrical circuit to be measured shall be clarified in 
advance, using electrical circuit diagrams, etc.  
Moreover, modification necessary for measuring the isolation resistance 
may be carried out, such as removal of  the cover in order to reach the live 
parts, drawing of measurement lines, change in software, etc.  
In cases where the measured values are not stable due to the operation of 
the on -board isolation resistance monitoring system, etc., necessary 
modification for conducting the measurement may be carried out, such as 
stopping of the operation of the device concerned or removing it. 
Furthermore, when the device is removed, it shall  be proven, using 
drawings, etc., that it will not change the isolation resistance  between the 
live parts and the electrical chassis.  
Utmost care shall  be exercised as to short circuit, electric shock, etc., for 
this confirmation might require direct operations of the high -voltage 
circuit.  
2.1. Measurement method using voltage from off -vehicle sources  
2.1.1.  Measurement instrument  
An isolation resistance test instrument capable of applying a DC voltage 
higher than the working voltage of the high voltage bus shall be used.  
2.1.2.  Measurement method  
An insulator resistance test instrument  shall be connected between the 
live parts and the electrical chassis. Then, the isolation resistance shall be 
measured by applying a DC voltage at least half of the working voltage of 
the high voltage bus.  
If the system has several voltage ranges (e.g. b ecause of boost converter) 
in galvanically connected circuit and some of the components cannot 
withstand the working voltage of the entire circuit, the isolation resistance 
between those components and the electrical chassis can be measured 
separately by a pplying at least half of their own working voltage with 
those component disconnected.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4A  
 
33 2.2. Measurement method using the vehicle’s own REESS as DC voltage 
source  
2.2.1.  Test vehicle conditions  
The high voltage -bus shall be energized by the vehicle’s own REESS 
and/or energy conversion system and the voltage level of the REESS 
and/or energy conversion system throughout the test shall be at least the 
nominal operating voltage as specified by the vehicle manufacturer.  
2.2.2.  Measurement instrument  
The voltmete r used in this test shall measure DC values and shall have an 
internal resistance of at least 10 M Ω. 
2.2.3.  Measurement method  
2.2.3.1.  First step  
The voltage is measured as shown in Figure 1 and the high voltage  bus 
voltage (Vb) is recorded. Vb shall be equal to or greater than the nominal 
operating voltage of the REESS and/or energy conversion system  as 
specified by the vehicle manufacturer.  
Figure 1  
Measurement of Vb, V1, V2  
 
2.2.3.2.  Second step  
Measure and record the voltage (V1) between the negative side of the 
high voltage bus and the electrical  chassis (see Figure 1 ). 
2.2.3.3.  Third step  
Measure and record the voltage (V2) between the positive side of the high 
voltage bus and the electrical  chassis (see Figure 1).  Electrical Chassis  
Electrical Chassis   High Voltage Bus  Energy Conversion  
System Assembly   REESS Assembly  V2 
V1 Vb    + 
- + 
-    Energy  
Conversion  
  System   REESS  Traction System  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex4A  
 
34 2.2.3.4.  Fourth step  
If V1 is greater than or equal to V2, insert a standard known resistance 
(Ro) betwe en the negative side of the high voltage bus and the electrical  
chassis. With Ro installed, measure the voltage (V1’) between the 
negative side of the high voltage bus and the electrical  chassis (see 
Figure  2). 
Calculate the electrical isolation (Ri) accor ding to the following formula:  
 
Ri = Ro*(Vb/V1’ – Vb/V1)   or   Ri = Ro*Vb*(1/V1’ – 1/V1)  
Figure 2  
Measurement of V1’  
 
If V2 is greater than V1, insert a standard known resistance (Ro) between the 
positive side of the high volt age bus and the electrical  chassis. With Ro installed, 
measure the voltage (V2’) between the positive side of the high voltage bus and the 
electrical  chassis ( see Figure 3). Calculate the electrical isolation (Ri) according to the 
formula shown. Divide thi s electrical isolation value (in Ω) by the nominal operating 
voltage of the high voltage bus (in volts).  
Calculate the electrical isolation (Ri) according to the following formula:  
 
Ri = Ro*(Vb/V2’ – Vb/V2)   or   Ri = Ro*Vb*(1/V2’ – 1/V2)  Electrical Chassis  
Electrical Chassis   High Voltage Bus  Energy Conversion  
System Assembly  REESS Assembly  
V1´ Vb    + 
- + 
-   Energy  
Conversion  
  System   REESS  Traction System  
Ro E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4A  
 
35 Figure 3  
Measurement of V2’  
  
2.2.3.5.  Fifth step  
The electrical isolation value Ri (in Ω) divided by the working voltage of 
the high voltage bus (in volts) results in the isolation resistance (in Ω/V). 
Note : The standard known resistance Ro (in Ω) should be the value of the  
minimum required isolation resistance (in Ω/V) multiplied by the working 
voltage of the vehicle plus/minus 20 per cent (in volts). Ro is not required 
to be precisely this value since the equations are valid for any Ro; 
however, a Ro value in this range sh ould provide good resolution for the 
voltage measurements.  
Electrical Chassis  
Electrical Chassis   High Voltage Bus  Energy Conversion  
System Assembly  REESS Assembly  
V2' 
   + 
- + 
-   Energy  
Conversion  
  System   REESS  Tractio n System  Ro E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/ Rev. 2/Add. 99/Rev. 2 
Annex 4B  
 
36 Annex 4B  
  Isolation resistance measurement method for component 
based tests of a REESS  
1. Measurement method  
The isolation resistance measurement shall be conducted by selecting an 
appropriate me asurement method from among those listed in 
paragraphs  1.1. through 1.2.  of this annex , depending on the electrical 
charge of the live parts or the isolation resistance, etc.  
If the operating voltage of the tested -device (Vb, Figure 1) cannot be 
measured (e.g. due to disconnection of the electric circuit caused by main 
contactors or fuse operation) the test may be performed with a modified 
test device to allow measurement of the internal voltages (upstream the 
main contactors).  
These modifications shall no t influence the test results.  
The range of the electrical circuit to be measured shall be clarified in 
advance, using electrical circuit diagrams, etc. If the high voltage buses 
are galvanically isolated from each other, isolation resistance shall be 
measu red for each electrical circuit.  
Moreover, modification necessary for measuring the isolation resistance 
may be carried out, such as removal of the cover in order to reach the live 
parts, drawing of measurement lines, change in software, etc.  
In cases whe re the measured values are not stable due to the operation of 
the isolation resistance monitoring system, etc., necessary modification 
for conducting the measurement may be carried out, such as stopping the 
operation of the device concerned or removing it.  Furthermore, when the 
device is removed, it shall be proven, using drawings, etc., that it will not 
change the isolation resistance between the live parts and the ground 
connection designated by the manufacturer as a point to be connected to 
the electrica l chassis when installed on the vehicle . 
Utmost care shall be exercised as to short circuit, electric shock, etc., for 
this confirmation might require direct operations of the high -voltage 
circuit.  
1.1. Measurement method using voltage from external source s 
1.1.1.  Measurement instrument  
An isolation resistance test instrument capable of applying a DC voltage 
higher than the nominal voltage of the tested -device shall be used.  
1.1.2.  Measurement method  
An insulation resistance test instrument shall be connect ed between the 
live parts and the ground connection. Then, the isolation resistance shall 
be measured.  
If the system has several voltage ranges (e.g. because of boost converter) 
in a galvanically connected circuit and some of the components cannot 
withsta nd the working voltage of the entire circuit, the isolation resistance E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4B  
 
37 between those components and the ground connection can be measured 
separately by applying at least half of their own working voltage with 
those component disconnected.  
1.2. Measurement method using the tested -device as DC voltage source  
1.2.1.  Test conditions  
The voltage level of the tested -device throughout the test shall be at least 
the nominal operating voltage of the tested -device.  
1.2.2.   Measurement instrument  
The voltmeter used in this test shall measure DC values and shall have an 
internal resistance of at least 10 MΩ.  
1.2.3.   Measurement method  
1.2.3.1.  First step  
The voltage is measured as shown in Figure 1 and the operating voltage 
of the tested -device (Vb, Figure 1) is recor ded. Vb shall be equal to or 
greater than the nominal operating voltage of the tested -device.  
Figure 1  
 
1.2.3.2.  Second step  
Measure and record the voltage (V1) between the negative pole of the 
tested -device and the ground conne ction (Figure 1).  
1.2.3.3.  Third step  
Measure and record the voltage (V2) between the positive pole of the 
tested -device and the ground connection (Figure 1).  
1.2.3.4.  Fourth step  
If V1 is greater than or equal to V2, insert a standard known resistance 
(Ro) between the negative pole of the tested -device and the ground 
connection. With Ro installed, measure the voltage (V1’) between the 
negative pole of the tested -device and the ground connection (see 
Figure  2). Ground 
connection  V2 V1 Vb  + 
- Tested - 
device  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4B  
 
38 Calculate the electrical isolation (Ri) accord ing to the following formula:  
 
Ri = Ro*(Vb/V1’ – Vb/V1)   or   Ri = Ro*Vb*(1/V1’ – 1/V1)  
Figure 2  
 
If V2 is greater than V1, insert a standard known resistance (Ro) 
between the positive pole of the tested -device and the ground c onnection. 
With Ro installed, measure the voltage (V2’) between the positive pole of the 
tested -device and the ground connection (see Figure 3).  
Calculate the electrical isolation (Ri) according to the following formula:  
 
Ri = Ro*(Vb/V2’ – Vb/V2)   or   Ri  = Ro*Vb*(1/V2’ – 1/V2)  
Figure 3  
 Ground 
connection  V2’ Vb  + 
- R0 Tested -
device  Ground 
connection  V1’ Vb  + 
- Tested - 
device  
R0 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 4B  
 
39 1.2.3.5.  Fifth step  
The electrical isolation value Ri (in Ω) divided by the nominal voltage of the 
tested -device (in volts) results in the isolation resistance (in Ω/V).  
Note 1: The standard known resistance Ro (in Ω) should be the value of the 
minimum required isolation resistance (in Ω/V) multiplied by the nomi nal 
voltage of the tested -device plus/minus 20 per cent (in volts). Ro is not 
required to be precisely this value since the equations are valid for any Ro; 
however, a Ro value in this range should provide good resolution for the 
voltage measurements . E/ECE/324/Rev.2/Add.99/Rev. 2 
E/ECE/TRANS/505/Rev.2/Add.9 9/Rev. 2 
Annex 5  
40 Anne x 5 
  Confirmation method for function  of on -board isolation 
resistance monitoring system  
The function of the on -board isolation resistance monitoring system shall 
be confirmed by the following method:  
Insert a resistor that does not cause the isolation re sistance between the 
terminal being monitored and the electrical chassis to drop below the 
minimum required isolation resistance value. The warning shall be 
activated.  
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 6 – Part 1  
41 Annex 6  - Part 1  
  Essential characteristics of road vehicles or systems  
1. General  
1.1. Make (trade name of manufacturer):  ................................ ................................ ............   
1.2. Type:  ................................ ................................ ................................ ............................   
1.3. Vehicle category:  ................................ ................................ ................................ .........   
1.4. Commercial name(s) if available:  ................................ ................................ ................   
  ................................ ................................ ................................ ................................ ......  
1.5. Manufacturer's name and address:  ................................ ................................ ...............   
  ................................ ................................ ................................ ................................ ......  
1.6. If applicable, name and address of manufacturer's representative:  ..............................   
1.7. Drawing an d/or photograph of the vehicle: ................................ ................................ ...  
1.8. Approval number of the REESS:  ................................ ................................ ..................   
2. Electric motor (traction motor)  
2.1. Type (winding, excitation):  ................................ ................................ ..........................   
2.2. Maximum net power and / or maximum 30 minutes power (kW):  ..............................   
3. REESS  
3.1. Trade name and mark of the  REESS :  ................................ ................................ ..........   
3.2. Indication of all types of cells:  ................................ ................................ .....................   
3.2.1.  The cell chemistry:  ................................ ................................ ................................ ........   
3.2.2.  Physical dimensions:  ................................ ................................ ................................ .....  
3.2.3.  Capacity of the cell (Ah):  ................................ ................................ ..............................   
3.3. Description or drawing(s) or picture(s) of the REESS explaining:  
3.3.1.  Structure:  ................................ ................................ ................................ .......................   
3.3.2.  Configuration (number of cel ls, mode of connection, etc.):  ................................ .........   
3.3.3.  Dimensions:  ................................ ................................ ................................ ..................   E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 6 – Part 1  
 
42 3.3.4.  Casing (construction, materials and physical dimensions):  ................................ ..........   
3.4.  Electrical specification:  ................................ ................................ ................................   
3.4.1.  Nominal voltage (V):  ................................ ................................ ................................ ....  
3.4.2.  Working voltage (V):  ................................ ................................ ................................ ....  
3.4.3.  Capacity (Ah):  ................................ ................................ ................................ ...............   
3.4.4.  Maximum current (A): ................................ ................................ ................................ ..  
3.5. Gas combination rate (in per cent):  ................................ ................................ ..............   
3.6. Description or drawing(s) or picture(s) of the installation of the REESS in the 
vehicle :  ................................ ................................ ................................ .........................   
3.6.1.  Physical support:  ................................ ................................ ................................ ...........   
3.7. Type of  thermal management  ................................ ................................ .......................   
3.8. Electronic control:  ................................ ................................ ................................ .........   
4. Fuel Cell (if any)  
4.1. Trade name and mark of the fuel cell:  ................................ ................................ .........   
  ................................ ................................ ................................ ................................ ......  
4.2. Types of fuel cell:  ................................ ................................ ................................ ........   
4.3. Nominal voltage (V):  ................................ ................................ ................................ ...  
4.4. Number of cells:  ................................ ................................ ................................ ...........   
4.5. Type of cooling system (if any):  ................................ ................................ ..................   
4.6. Max Power(kW):  ................................ ................................ ................................ .........   
5. Fuse and/or circuit breaker  
5.1. Type:  ................................ ................................ ................................ ............................   
5.2. Diagram showing the f unctional range:  ................................ ................................ .......  
6. Power wiring harness  
6.1. Type:  ................................ ................................ ................................ ............................   
7. Protection against Electric Shock  
7.1. Description of the protection concept:  ................................ ................................ .........   E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505 /Rev. 2/Add. 99/Rev. 2 
Annex 6 – Part 1  
 
43 8. Additional data  
8.1. Brief description of the power circuit components installation or drawings/  
pictures showing the location of the power circuit components installation:  ...............   
8.2 Schematic diagram of all electrical functions included in power circuit:   ....................   
8.3. Working voltage (V):   ................................ ................................ ................................ ...  
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 6 – Part 2  
44 Annex 6 - Part 2  
  Essential characteristics of REESS  
1. REESS  
1.1. Trade name and ma rk of the REESS:  ................................ ...............................   
1.2. Indication of all types of cells:  ................................ ................................ ...........   
1.2.1.  The cell chemistry : ................................ ................................ ............................   
1.2.2.  Physical d imensions : ................................ ................................ .........................   
1.2.3.  Capacity of the cell (Ah):  ................................ ................................ ..................   
1.3. Description or drawing(s) or picture(s) of the REESS explaining  
1.3.1.  Structure : ................................ ................................ ................................ ...........   
1.3.2.  Configurat ion (number of cells, mode of connection, etc.):  ..............................   
1.3.3.  Dimensions : ................................ ................................ ................................ .......  
1.3.4.  Casing (construction , materials  and physical dimensions ): ...............................   
1.4. Electrical specification  
1.4.1 . Nominal voltage (V):  ................................ ................................ .........................   
1.4.2.  Working voltage (V):  ................................ ................................ .........................   
1.4.3.  Capacity (Ah):  ................................ ................................ ................................ ...  
1.4.4.  Maximum current (A):  ................................ ................................ .......................   
1.5. Gas combination rate (in percentage):  ................................ ...............................   
1.6.  Description or drawing(s) or picture(s) of the installation of the REESS in the 
vehicle:  ................................ ................................ ................................ ..............   
1.6.1.  Physical support:  ................................ ................................ ................................   
1.7.  Type of thermal management:  ................................ ................................ ...........   
1.8.  Electronic control:  ................................ ................................ .............................   
1.9. Category of vehicles on which the REESS can be installed:  .............................   
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
45 Annex 7  
  Determination of hydrogen emissions  during the charge 
procedures of the REESS  
1. Introduction  
 This annex describes the procedure for the determination of hydrogen 
emissions during the ch arge procedures of the REESS of all  road vehicles, 
according to paragraph 5. 4. of this Regulation.  
2. Description of test  
 The hydrogen emission test ( Figure 7.1 of the present annex ) is conducted in 
order to determine hydrogen emissions during the charge procedures of the 
REESS with the charger.  The test consists in the following steps:  
(a) Vehicle /REESS  preparation;  
(b) Discharge of the REESS ; 
(c) Determination of hydrogen e missions during a normal charge;  
(d) Determination of hydrogen emissions during a charge carried out with 
the charger  failure.  
3. Tests  
3.1. Vehicle based test  
3.1.1.  The vehicle shall be in good mechanical co ndition and have been driven 
at least 300 km during seven days before the test.  The vehicle shall be 
equipped with the REESS subject to the test of hydrogen emissions, over this 
period.  
3.1.2.  If the REESS is used at a temperature above the ambient temperature, the 
operator shall follow the manufacturer's procedure in order to keep the 
REESS temperature in normal functioning range.  
The manufacturer's representative shall be able to certify that the temperature 
conditioning system of the REESS is neither damaged nor presenting a 
capacity defect.  
3.2. Component based test  
3.2.1.  The REESS shall be in good mechanical condition and have  been subject to 
minimum of 5 standard cycles (as specified in Annex 8 , Appendix 1).  
3.2.2.  If the REESS is used at a temperature above the ambient temperature, the 
operator shall follow the manufacturer's procedure in order to keep the 
REESS temperature i n its normal functioning range.  
 The manufacturer's representative shall be able to certify that the temperature 
conditioning system of the REESS is neither damaged nor presenting a 
capacity defect  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
46 Figure 7.1 
Determination of hydrogen emissions during  the charge procedures of the REESS  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Discharge of the REESS  
Ambient temperature of 293 to 303 K  
Soak  
Hydrogen e mission test  
during a normal charge  
END   1.1.1.1.  Soak  
Hydrogen emission test  
during a charger failure  
Ambient temperature 293 K ± 2 K  START  
Vehicle /REESS  preparation  
(if necessary)  
Discharge of the REESS  
Ambient temperature of 293 to 303 K  Maximum 7 days  
days days  
Maximum 15  min 
12 to 
36 h 
36 h 
 
36 h 
12 to  
36 h Maximum 7 days  
Maximum 15 min  
Maximum 2 min after 
connection to mains  Maximum 2 min after 
connection to mains  
to mains  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
47 4. Test equipment for hydrogen emission test  
4.1. Chassis dynamometer  
 The chassis dynamometer shall meet the requirements of the  06 series of 
amendments to Regulation No. 83.  
4.2. Hydrogen emission meas urement enclosure  
 The hydrogen emission measurement enclosure shall be a gas -tight measuring 
chamber able to contain the vehicle /REESS  under test.  The vehicle /REESS  
shall be accessible from all sides and the enclosure when sealed shall be gas -
tight in ac cordance with Appendix 1 to this annex.  The inner surface of the 
enclosure shall be impermeable and non -reactive to hydrogen.  The 
temperature conditioning system shall be capable of controlling the internal 
enclosure air temperature to follow the prescri bed temperature throughout the 
test, with an average tolerance of ± 2 K over the duration of the test.  
 To accommodate the volume changes due to enclosure hydrogen emissions, 
either a variable -volume or another test equipment may be used.  The 
variable -volume enclosure expands and contracts in response to the hydrogen 
emissions in the enclosure.  Two potential means of accommodating the 
internal volume changes are movable panels, or a bellows design, in which 
impermeable bags inside the enclosure expand and contract in response to 
internal pressure changes by exchanging air from outside the enclosure.  Any 
design for volume accommodation shall maintain the integrity of the 
enclosure as specified in Appendix 1 to this annex.  
 Any method of volume accommodation  shall limit the differential between 
the enclosure internal pressure and the barometric p ressure to a maximum 
value of ± 5hPa. 
 The enclosure shall be capable of latching to a fixed volume.  A  variable 
volume enclosure shall be capable of accommodating a c hange from its 
"nominal volume" (see Annex 7, Appendix 1, paragraph  2.1.1.), taking into 
account hydrogen emissions during testing.  
4.3. Analytical systems  
4.3.1.  Hydrogen analyser  
4.3.1.1.  The atmosphere within the chamber is monitored using a hydrogen an alyser 
(electrochemical detector type) or a chromatograph with thermal conductivity 
detection.  Sample gas shall be drawn from the mid -point of one side -wall or 
roof of the chamber and any bypass flow shall be returned to the enclosure, 
preferably to a poi nt immediately downstream of the mixing fan.  
4.3.1.2.  The hydrogen analyser shall have a response time to 90 per cent of final 
reading of less than 10 seconds.  Its stability shall be better than 2 per cent of 
full scale at zero and at 80 per cent ±  20 per cent of full scale, over  
a 15-minute period for all operational ranges.  
4.3.1.3.  The repeatability of the analyser expressed as one standard deviation shall be 
better than 1 per cent of full scale, at zero and at 80 per cent ± 20 per cent of 
full scale o n all ranges used.  
4.3.1.4.  The operational ranges of the analyser shall be chosen to give best resolution 
over the measurement, calibration and leak checking procedures.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
48 4.3.2.  Hydrogen analyser data recording system  
 The hydrogen analyser shall be fitte d with a device to record electrical signal 
output, at a frequency of at least once per minute. The recording system shall 
have operating characteristics at least equivalent to the signal being recorded and 
shall provide a permanent record of results.  The  recording shall show a clear 
indication of the beginning and end of the normal charge test and charging failure 
operation.  
4.4. Temperature recording  
4.4.1.  The temperature in the chamber is recorded at two points by temperature 
sensors, which are connect ed so as to show a mean value. The measuring 
points are extended approximately 0.1 m into the enclosure from the vertical 
centre line of each side -wall at a height of 0.9 ± 0.2 m.  
4.4.2.  The temperatures in the proximity of the cells are recorded by means of the 
sensors.  
4.4.3.  Temperatures shall, throughout the hydrogen emission measurements, be 
recorded at a frequency of at least once per minute.  
4.4.4.  The accuracy of the temperature rec ording system shall be within ± 1.0 K and 
the temperature shall be  capable of being resolved to ± 0.1 K.  
4.4.5.  The recording or data processing system shall be capable of resolving time 
to ± 15 seconds.  
4.5. Pressure recording  
4.5.1.  The difference p between barometric pressure within the test area and the 
enclosure intern al pressure shall, throughout the hydrogen emission 
measurements, be recorded at a frequency of at least once per minute.  
4.5.2.  The accuracy of the pressure rec ording system shall be within ± 2 hPa and the 
pressure shall be  capable of being resolved to ± 0.2 hPa. 
4.5.3.  The recording or data processing system shall be  capable of resolving time 
to ±15 seconds.  
4.6. Voltage and current intensity recording  
4.6.1.  The charger voltage and current intensity (battery) shall, throughout the 
hydrogen emission measure ments, be recorded at a frequency of at least once 
per minute.  
4.6.2.  The accuracy of the voltage rec ording system shall be within ± 1 V and the 
voltage shall be  capable of being resolved to ± 0.1 V.  
4.6.3.  The accuracy of the current intensity rec ording sys tem shall be within  ±0.5 A 
and the current intensity shall be capable of  being resolved to  ±0.05 A.  
4.6.4.  The recording or data processing system shall be  capable of resolving time to 
±15 seconds.  
4.7. Fans  
 The chamber shall be equipped with one or more fans or blowers with a 
possible flow of  0.1 to 0.5 m3/second in order to thoroughly mix the 
atmosphere in the enclosure.  It shall be possible to reach a homogeneous 
temperature and hydrogen concentration in the chamber during E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
49 measurements.  The vehicle in  the enclosure shall  not be subjected to a direct 
stream of air from the fans or blowers.  
4.8. Gases  
4.8.1.  The following pure gases shall be available for calibration and operation:  
(a)  Purified synthetic air (purity <  1 ppm C 1 equivalent; <  1 ppm CO; 
< 400 ppm CO 2; < 0.1 ppm NO ); oxygen content between 18 and 
21 per cent by volume,  
(b)  Hydrogen ( H 2 ), 99.5 per cent minimum purity.  
4.8.2.  Calibration and span gases shall contain mixtures of hydrogen (H 2) and 
purified synthetic air.  The real concentrat ions of a ca libration gas shall be 
within ± 2 per cent of the nominal values.  The accuracy of the diluted gases 
obtained when using a gas divider shall be within ± 2 per cent of the nominal 
value.  The concentrations specified in Appendix 1 may also be obta ined by a 
gas divider using synthetic air as the dilution gas.  
5. Test procedure  
 The test consists in the five following steps:  
(a) Vehicle /REESS  preparation;  
(b) Discharge of the REESS ; 
(c) Determination of hydrogen e missions during a normal charge;  
(d) Discharge of the traction battery;  
(e) Determination of hydrogen emissions during a charge carried out with 
the charger failure.  
 If the vehicle /REESS  has to be moved between two steps, it shall be pushed 
to the following test area.  
5.1. Vehicle  based test  
5.1.1.  Vehicle preparation  
 The ageing of REESS shall be checked, proving that the vehicle has 
performed at least 300 km during seven days before the test.  During this 
period, the vehicle shall be equipped with the traction battery submitted to 
the hydro gen emission test.  If this cannot be demonstrated then the following 
procedure will be applied.  
5.1.1. 1. Discharges and initial charges of the REESS  
 The procedure starts with the discharge of the REESS of the vehicle while 
driving on the test track or on  a chassis dynamometer at a steady speed of 70 
per cent  ± 5 per cent of the maximum speed of the vehicle during 30  minutes.  
 Discharging is stopped:  
(a) When the vehicle is not able to run at 65 per cent of the maximum 
thirty minutes speed, or  
(b) When an indication to stop the vehicle is given to the driver by the 
standard on -board instrumentation, or  
(c) After having covered the distance of 100 km.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
50 5.1.1.2. Initial charge of the REESS  
 The charge is carried out:  
(a) With the charger;  
(b) In an ambient tem perature between 293 K and 303 K.  
The procedure excludes all types of external chargers.  
The end of REESS charge criteria corresponds to an automatic stop given by 
the charger.  
This procedure includes all types of special charges that could be 
automaticall y or manually initiated like, for instance, the equalisation charges 
or the servicing charges.  
5.1.1.3. Procedure from paragraphs 5.1.1. 1. and 5.1.1.2. shall be repeated two times.  
5.1.2. Discharge of the REESS  
 The  REESS is discharged while driving on th e test track or on a chassis 
dynamometer at a steady speed of 70 per cent ±  5 per cent from the 
maximum thirty minutes speed of the vehicle.  
 Stopping the discharge occurs:  
(a) When an indication to stop the vehicle is given to the driver by the 
standard o n-board instrumentation, or  
(b) When the maximum speed of the vehicle is lower than 20 km/h.  
5.1.3. Soak  
 Within fifteen minutes of completing the battery discharge operation 
specified in paragraph 5.2., the vehicle is parked in the soak area. The vehicle 
is parked for a minimum of  12 hours and a maximum of 36 hours, between 
the end of the traction battery discharge and the start of the hydrogen 
emission test during a normal charge. For this period, the vehicle shall be 
soaked at 293 K ± 2 K.  
5.1.4. Hydroge n emission test during a normal charge  
5.1.4.1. Before the completion of the soak period, the measuring chamber shall be 
purged for several minutes until a stable hydrogen background is obtained.  
The enclosure mixing fan(s) shall also be turned on at this  time.  
5.1.4.2. The hydrogen analyser shall be zeroed and spanned immediately prior to the 
test. 
5.1.4.3. At the end of the soak, the test vehicle, with the engine shut off and the test 
vehicle windows and luggage compartment opened shall be moved into the  
measuring chamber.  
5.1.4.4. The vehicle shall be connected to the mains.  The REESS is charged 
according to normal charge procedure as specified in paragraph  5.1.4.7. 
below.  
5.1.4.5. The enclosure doors are closed and sealed gas -tight within two minutes f rom 
electrical interlock of the normal charge step.  
5.1.4.6. The start of a normal charge for hydrogen emission test period begins when 
the chamber is sealed.  The hydrogen concentration, temperature and E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
51 barometric pressure are measured to give the initial  readings C H2i, T i and P i 
for the normal charge test.  
 These figures are used in the hydrogen emission calculation (paragraph  6. of 
this annex ).  The ambient enclosure temperature T shall not be less than 
291 K and no more than 295 K during the normal char ge period.  
5.1.4.7. Procedure of normal charge  
 The normal charge is carried out with the charger and consists of the 
following steps:  
(a) Charging at constant power during t 1; 
(b) Over-charging at constant current during t 2.  Over -charging intensity 
is sp ecified by manufacturer and corresponds to the one used during 
equalisation charging.  
The end of REESS charge criteria corresponds to an automatic stop given by 
the charger to a charging time of t 1 + t2.  This charging time will be limited to 
t1 + 5 h, eve n if a clear indication is given to the driver by the standard 
instrumentation that the battery is not yet fully charged.  
5.1.4.8. The hydrogen analyser shall be zeroed and spanned immediately before the 
end of the test.  
5.1.4.9. The end of the emission sa mpling period occurs t 1 + t2 or t 1 + 5 hours after 
the beginning of the initial sampling, as specified in paragraph 5. 1.4.6. of this 
annex.   The different times elapsed are recorded.  The hydrogen 
concentration, temperature and barometric pressure are meas ured to give the 
final readings C H2f, T f and P f for the normal charge test, used for the 
calculation in paragraph 6.  of this annex.  
5.1.5. Hydrogen emission test with the charger failure  
5.1.5.1. Within seven days maximum after having completed the prior t est, the 
procedure starts with the discharge of the REESS of the vehicle according to 
paragraph 5. 1.2. of this annex.  
5.1.5.2. The steps of the procedure in paragraph 5. 1.3. of this annex  shall be repeated.  
5.1.5.3. Before the completion of the soak period , the measuring chamber shall be 
purged for several minutes until a stable hydrogen background is obtained.  
The enclosure mixing fan(s) shall also be turned on at this time.  
5.1.5.4. The hydrogen analyser shall be zeroed and spanned immediately prior to t he 
test. 
5.1.5.5. At the end of the soak, the test vehicle, with the engine shut off and the test 
vehicle windows and luggage compartment opened shall be moved into the 
measuring chamber.  
5.1.5.6. The vehicle shall be connected to the mains.  The REESS is charged 
according to failure charge procedure as specified in paragraph  5.1.5.9. 
below.  
5.1.5.7. The enclosure doors are closed and sealed gas -tight within two minutes from 
electrical interlock of the failure charge step.  
5.1.5.8. The start of a failure ch arge for hydrogen emission test period begins when 
the chamber is sealed.  The hydrogen concentration, temperature and E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
52 barometric pressure are measured to give the initial readings C H2i, T i and P i 
for the failure charge test.  
 These figures are used in th e hydrogen emission calculation (paragraph  6. of 
this annex ).  The ambient enclosure temperature T shall not be less than 
291 K and no more than 295 K during the charging failure period.  
5.1.5.9.  Procedure of charging failure  
 The charging failure is carr ied out with the  suitable charger and consists of 
the following steps:  
(a) Charging at constant power during t' 1; 
(b) Charging at maximum current as recommended by the manufacturer 
during 30 minutes.  During this phase, the charger shall supply 
maximum cu rrent  as recommended by the manufacturer . 
5.1.5.10.  The hydrogen analyser shall be zeroed and spanned immediately before the 
end of the test.  
5.1.5.11.  The end of test period occurs t' 1 + 30 minutes after the beginning of the initial 
sampling, as specified  in paragraph 5. 1.5.8. above.   The times elapsed are 
recorded.  The hydrogen concentration, temperature and barometric pressure 
are measured to give the final readings C H2f, Tf and P f for the charging failure 
test, used for the calculation in paragraph 6.  of this annex.  
5.2. Component based test  
5.2.1.  REESS preparation  
The ageing of REESS shall be checked, to confirm that the REESS has 
performed at least 5 standard cycles (as specified in Annex 8, Appendix 1).   
5.2.2.  Discharge of the REESS  
The REESS is d ischarged at 70 per cent ±  5 per cent of the nominal power of 
the system.  
Stopping the discharge occurs when minimum SOC as specified by the 
manufacturer is reached.  
5.2.3.  Soak  
Within 15 minutes of the end of the REESS discharge operation specified in 
paragraph 5.2.2. above, and before the start of the hydrogen emission test, the 
REESS shall be soaked at 293 K ± 2 K for a minimum period of 12 hours and 
a maximum of period of 36 hours.  
5.2.4.  Hydrogen emission test during a normal charge  
5.2.4.1.  Before the  completion of the REESS's soak period, the measuring chamber 
shall be purged for several minutes until a stable hydrogen background is 
obtained. The enclosure mixing fan(s) shall also be turned on at this time.  
5.2.4.2.  The hydrogen analyser shall be zero ed and spanned immediately prior to the 
test. 
5.2.4.3.  At the end of the soak period, the REESS shall be moved into the measuring 
chamber.  
5.2.4.4.  The REESS shall be charged in accordance with the normal charge procedure 
as specified in paragraph  5.2.4.7.  below.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
53 5.2.4.5.  The chamber shall be closed and sealed gas -tight within two minutes of the 
electrical interlock of the normal charge step.  
5.2.4.6.  The start of a normal charge for hydrogen emission test period shall begin 
when the chamber is sealed. The hydrogen concentration, temperature and 
barometric pressure are measured to give the initial readings C H2i, T i and P i 
for the normal charge test.  
 These figures are used in the hydrogen emission calculation (paragraph  6. of 
this annex ). The ambient enclosu re temperature T shall not be less than 
291 K and no more than 295 K during the normal charge period.  
5.2.4.7.  Procedure of normal charge  
 The normal charge is carried out with a suitable charger and consists of the 
following steps:  
(a) Charging at constan t power during t 1; 
(a) Over-charging at constant current during t 2. Over -charging intensity is 
specified by manufacturer and corresponding to that used during 
equalisation charging.  
The end of REESS charge criteria corresponds to an automatic stop given by  
the charger to a charging time of t 1 + t2. This charging time will be limited to 
t1 + 5 h, even if a clear indication is given by a suitable instrumentation that 
the REESS is not yet fully charged.  
5.2.4.8.  The hydrogen analyser shall be zeroed and spanne d immediately before the 
end of the test.  
5.2.4.9.  The end of the emission sampling period occurs t 1 + t 2 or t 1 + 5 h after the 
beginning of the initial sampling, as specified in paragraph 5.2.4.6.  above.  
The different times elapsed are recorded. The hydro gen concentration, 
temperature and barometric pressure are measured to give the final readings 
CH2f, T f and P f for the normal charge test, used for the calculation in 
paragraph 6.  of this annex  
5.2.5.  Hydrogen emission test with the charger failure  
5.2.5.1 . The test procedure shall start within a maximum of seven days after having 
completed the test in paragraph 5.2.4 . above , the procedure shall start with 
the discharge of the REESS of the vehicle in accordance with 
paragraph  5.2.2.  above.  
5.2.5.2.  The step s of the procedure in paragraph 5.2.3. above shall be repeated.  
5.2.5.3.  Before the completion of the soak period, the measuring chamber shall be 
purged for several minutes until a stable hydrogen background is obtained. 
The enclosure mixing fan(s) shall a lso be turned on at this time.  
5.2.5.4.  The hydrogen analyser shall be zeroed and spanned immediately prior to the 
test. 
5.2.5.5.  At the end of the soak the REESS shall be moved into the measuring 
chamber.  
5.2.5.6.  The REESS shall be charged according to t he failure charge procedure as 
specified in paragraph  5.2.5.9. below.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
54 5.2.5.7.  The chamber shall be closed and sealed gas -tight within two minutes from 
electrical interlock of the failure charge step.  
5.2.5.8.  The start of a failure charge for hydrogen emi ssion test period begins when 
the chamber is sealed. The hydrogen concentration, temperature and 
barometric pressure are measured to give the initial readings C H2i, T i and P i 
for the failure charge test.  
 These figures are used in the hydrogen emission ca lculation (p aragraph 6 . of 
this annex ).  The ambient enclosure temperature T shall not be less than 
291 K and no more than 295 K during the charging failure period.  
5.2.5.9.  Procedure of charging failure  
 The charging failure is carried out with a suitabl e charger and consists of the 
following steps:  
(a) Charging at constant power during t' 1, 
(b) Charging at maximum current as recommended by the manufacturer 
during 30 minutes.  During this phase, the charger shall supply 
maximum current as recommended by t he manufacturer.  
5.2.5.10.  The hydrogen analyser shall be zeroed and spanned immediately before the 
end of the test.  
5.2.5.11.  The end of test period occurs t' 1 + 30 minutes after the beginning of the initial 
sampling, as specified in paragraph 5.2.5.8. above. The times elapsed are 
recorded. The hydrogen concentration, temperature and barometric pressure 
are measured to give the final readings C H2f, Tf and P f for the charging failure 
test, used for the calculation in paragraph 6 . below.  
6. Calculation  
 The hydrogen emission tests described in paragraph 5 . above  allow the 
calculation of the hydrogen emissions from the normal charge and charging 
failure phases.  Hydrogen emissions from each of these phases are calculated 
using the initial and final hydrogen co ncentrations, temperatures and 
pressures in the enclosure, together with the net enclosure volume.  
 The formula below is used:  






ii i2H
ff f2Hout
4
2HTP C
TP C)VV1(
10Vk M
 
Where:  
MH2 = hydrogen mass, in grams  
CH2 = measured hydrogen concentration in the enclosure, in ppm 
volume  
V = net enclosure volume in cubic metres (m3) corrected for the 
volume of the vehicle, with the windows and the luggage 
compartment open.  If the volume of the vehicle is not 
determined a volume of 1.42 m³ is subtracted.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  
 
55 Vout = compensation volume in m³, at the test temperature and 
pressure  
T = ambient chamber temperature, in K  
P = absolute enclosure pressure, in kPa  
k = 2.42 
Where:  i is the initial reading  
 f is the final reading  
6.1. Results of test  
The hydrogen mass emissions for the REESS are: 
MN = hyd rogen mass emission for normal charge test, in grams  
MD = hydrogen mass emission for charging failure test, in grams  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7  - Appendix 1  
 
56 Annex 7  - Appendix 1  
  Calibration of equipment  for hydrogen emission testing  
1. Calibration frequency and methods  
All equipment shall be calibrated before its initial use and then calibrated as 
often as necessary and in any case in the mon th before type approval testing.  
The calibration methods to be used are described in this appendix . 
2. Calibration of the enclosure  
2.1. Initial determin ation of enclosure internal volume  
2.1.1.  Before its initial use, the internal volume of the chamber shall be determined 
as follows.  The internal dimensions of the chamber are carefully measured, 
taking into account any irregularities such as bracing stru ts.  The internal 
volume of the chamber is determined from these measurements.  
The enclosure shall be latched to a fixed volume when the enclosure is held 
at an ambient temperature of 293 K.  This nominal volume shall  be 
repeatable within ± 0.5 per cent of the reported value.  
2.1.2.  The net internal volume is determined by subtracting 1.42 m3 from the 
internal volume of the chamber.  Alternatively the volume of the test vehicle 
with the luggage compartment and windows open or REESS may be used 
instead of the  1.42 m3. 
2.1.3.  The chamber shall be checked as in paragraph 2.3.  of this annex.   If the 
hydrogen mass does not agree wit h the injected mass to within ± 2 per cent 
then corrective action is required.  
2.2. Determination of chamber background emissions  
This operation determines that the chamber does not contain any materials 
that emit significant amounts of hydrogen.  The check shall be carried out at 
the enclosure's introduction to service, after any operations in the enclosure 
which may affect background em issions and at a frequency of at least once 
per year.  
2.2.1.  Variable -volume enclosure may be operated in either latched or unlatched 
volume configuration, as described in paragraph 2.1.1. above.  Ambient 
temperature shall be maintained at 293 K ± 2 K, thro ughout the four-hour 
period mentioned below.  
2.2.2.  The enclosure may be sealed and the mixing fan operated for a period of up 
to 12 hours before the four -hour background -sampling period begins.  
2.2.3.  The analyser (if required) shall be calibrated, then z eroed and spanned.  
2.2.4.  The enclosure shall be purged until a stable hydrogen reading is obtained, 
and the mixing fan turned on if not already on.  
2.2.5.  The chamber is then sealed and the background hydrogen concentration, 
temperature and barometric pre ssure are measured. These are the initial 
readings C H2i, Ti and P i used in the enclosure background calculation.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7 – Appendix 1  
 
57 2.2.6.  The enclosure is allowed to stand undisturbed with the mixing fan on for a 
period of four hours.  
2.2.7.  At the end of this time the same  analyser is used to measure the hydrogen 
concentration in the chamber.  The temperature and the barometric pressure 
are also measured.  These are the final readings C H2f, Tf and P f. 
2.2.8.  The change in mass of hydrogen in the enclosure shall be calculate d over the 
time of the test in accordance with paragraph 2.4 . of this annex  and shall not 
exceed 0.5 g.  
2.3. Calibration and hydrogen retention test of the chamber  
The calibration and hydrogen retention test in the chamber provides a check 
on the calculate d volume (paragraph 2.1 . above ) and also measures any leak 
rate.  The enclosure leak rate shall be  determined at the enclosure's 
introduction to service, after any operations in the enclosure which may 
affect the integrity of the enclosure, and at least mo nthly thereafter.  If six 
consecutive monthly retention checks are successfully completed without 
corrective action, the enclosure leak rate may be determined quarterly 
thereafter as long as no corrective action is required.  
2.3.1.  The enclosure shall be p urged until a stable hydrogen concentration is 
reached.  The mixing fan is turned on, if not already switched on. The 
hydrogen analyser is zeroed, calibrated if required, and spanned.  
2.3.2.  The enclosure shall be latched to the nominal volume position.  
2.3.3. The ambient temperature control system is then turned on (if not already on) 
and adjusted for an initial temperature of 293 K.  
2.3.4.  When the enclosure temperature stabilizes at 293 K ± 2 K, the enclosure is 
sealed and the background concentration, t emperature and barometric 
pressure measured.  These are the initial readings C H2i, Ti and P i used in the 
enclosure calibration.  
2.3.5.  The enclosure shall be unlatched from the nominal volume.  
2.3.6.  A quantity of approximately 100 g of hydrogen is injecte d into the enclosure.  
This mass of hydrogen shall be measured to an accuracy of ±2  per cent of the 
measured value.  
2.3.7.  The contents of the chamber shall be allowed to mix for five minutes and 
then the hydrogen concentration, temperature and barometric pressure are 
measured.  These are the final readings C H2f, Tf and P f for the calibration of 
the enclosure as well as the initial readings C H2i, T i and P i for the retention 
check.  
2.3.8.  On the basis of the readings taken in paragraphs 2.3.4 and 2.3.7 above  and 
the formula in paragraph 2.4 . below , the mass of hydrogen in the enclosure is 
calculated. This shall be within ± 2 per cent of the mass of hydrogen 
measured in paragraph 2.3.6.  above.  
2.3.9.  The contents of the chamber shall be allowed to mix for a min imum of 
10 hours.  At the completion of the period, the final hydrogen concentration, 
temperature and barometric pressure are measured and recorded.  These are 
the final readings C H2f, Tf and P f for the hydrogen retention check.  
2.3.10.  Using the formula i n paragraph 2.4 . below , the hydrogen mass is then 
calculated from the readings taken in paragraphs 2.3.7 and 2.3.9.  above.   This E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7 - Appendix 1  
58 mass may not differ by more than 5 per cent from the hydrogen mass given 
by paragraph  2.3.8.  above.  
2.4. Calculation  
The calcul ation of net hydrogen mass change within the enclosure is used to 
determine the chamber's hydrocarbon background and leak rate. Initial and 
final readings of hydrogen concentration, temperature and barometric 
pressure are used in the following formula to c alculate the mass change.  






ii i2H
ff f2Hout
4
2HTP C
TP C)VV1(
10Vk M
 
Where:  
MH2 = hydrogen mass, in grams  
CH2 = measured hydrogen concentration into the enclosure, in ppm 
volume  
V = enclosure volume in cubic metres (m3) as measured in 
paragraph  2.1.1.  above.  
Vout = compensat ion volume in m³, at the test temperature and 
pressure  
T = ambient chamber temperature, in K  
P = absolute enclosure pressure, in kPa  
k = 2.42 
Where:  i is the initial reading  
 f is the final reading  
3. Calibration of the hydrogen analyser  
The analyser shoul d be calibrated using hydrogen in air and purified 
synthetic air.  See paragraph 4.8.2. of Annex 7 . 
Each of the normally used operating ranges are calibrated by the following 
procedure:  
3.1. Establish the calibration curve by at least five calibration poin ts spaced as 
evenly as possible over the operating range.  The nominal concentration of 
the calibration gas with the highest concentrations to be at least 80 per cent of 
the full scale.  
3.2. Calculate the calibration curve by the method of least squares.  If the 
resulting polynomial degree is greater than three , then the number of 
calibration points shall be at least the number of the polynomial degree plus 
two. 
3.3. The calibration curve shall not differ by more than two per cent from the 
nominal value of each calibration gas.  
3.4. Using the coefficients of the polynomial derived from paragraph 3.2. above, a 
table of analyser readings against true concentrations shall be drawn by steps E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7 – Appendix 1  
 
59 no greater than 1 per cent of full scale.  This is to be carried out for  each 
analyser range calibrated.  
This table shall also contain other relevant data such as:  
(a)  Date of calibration;  
(b)  Span and zero potentiometer readings (where applicable);  
(c)  Nominal scale;  
(d)  Reference data of each calibration gas used;  
(e)  Real and indicated value of each calibration gas used together with the 
percentage differences;  
(f)  Calibration pressure of analyser.  
3.5. Alternative methods (e.g. computer, electronically controlled range switch) 
can be used if it is proven to the techni cal service that these methods give 
equivalent accuracy.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 7 - Appendix 2  
 
60 Annex 7  - Appendix 2  
  Essential characteristics of the vehicle family  
1. Parameters defining the family relative to hydrogen emissions  
The family may be defined by basic design parameters which sha ll be 
common to vehicles within the family.  In some cases there may be 
interaction of parameters.  These effects shall also be taken into consideration 
to ensure that only vehicles with similar hydrogen emission characteristics 
are included within the fam ily. 
2. To this end, those vehicle types whose parameters described below are 
identical are considered to belong to the same hydrogen emissions.  
REESS : 
(a) Trade name or mark of the REESS ; 
(b) Indication of all types of electrochemical couples used ; 
(c) Number of REESS  cells; 
(d) Number of  REESS subsystems ; 
(e) Nominal voltage of the REESS (V); 
(f) REESS energy (kWh) ; 
(g) Gas combination rate (in per cent) ; 
(h) Type(s) of ventilation for  REESS subsystem(s) ; 
(i) Type of cooling system (if any) . 
On-board charg er: 
(a) Make and type of different charger parts ; 
(b) Output nominal power (kW) ; 
(c) Maximum voltage of charge (V) ; 
(d) Maximum intensity of charge (A) ; 
(e) Make and type of control unit (if any) ; 
(f) Diagram of operating, controls and safety ; 
(g) Characte ristics of charge periods . E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8  
61 Annex 8  
REESS t est procedures  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8 – Appendix 1  
 
62 Annex 8  - Appendix 1  
  Procedure for conducting a standard cycle 
A standard cycle will start with a standard discharge followed by a standard charge.  
Standard discharge:  
Discharge rate:  The dischar ge procedure including termination criteria 
shall be defined by the manufacturer. If not specified, 
then it shall be a discharge with 1C current.  
Discharge limit (end voltage):  Specified by the manufacturer  
Rest period after discharge:   Minimum 30 min  
Standard charge:  The charge procedure including termination criteria 
shall be defined by the manufacturer. If not specified, 
then it shall be a charge with C/3 current.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8A  
 
63 Annex 8A  
  Vibration test  
1.  Purpose  
The purpose of this test is to verify the safety performance of the REESS 
under a vibration environment which the REESS will likely experience 
during the normal operation of the vehicle.  
2.  Installations  
2.1. This test shall be conducted either with the complete REESS or with a related 
REESS subsystem(s ) including the cells and their electrical connections. If 
the manufacturer chooses to test with related subsystem(s), the manufacturer 
shall demonstrate that the test result can reasonably represent the 
performance of the complete REESS with respect to it s safety performance 
under the same conditions. If the electronic management unit for the REESS 
is not integrated in the casing  enclosing the cells, then the electronic 
management unit  may be omitted from installation on the tested -device if so 
requested b y the manufacturer.  
2.2. The tested -device  shall be  firmly secured to the platform of the vibration 
machine in such a manner as to ensure that the vibrations are directly 
transmitted to the tested -device.  
3. Procedures  
3.1. General test conditions  
The foll owing condition s shall apply to the tested -device:   
(a) The test shall  be conducted at an ambient temperature of 20  ± 10 °C ; 
(b) At the beginning of the test, the SOC shall be adjusted to a value in 
the upper 50 per cent of the normal operating SOC range o f the tested -
device ; 
(c) At the beginning of the test , all protection devices which affect the 
function(s) of the tested -device that are relevant to the outcome of the 
test shall be operational.  
3.2.   Test procedures  
The tested -devices shall be subjected to a vibration having a sinusoidal 
waveform with a logarithmic sweep between 7 Hz and 50 Hz and back to 
7 Hz traversed in 15 minutes. This cycle shall be repeated 12 times for a total 
of 3 hours in the vertical direction of the mounting orientation of the REESS 
as specified by the manufacturer.   
The correlation between frequency and acceleration shall be as shown in 
Table 1:  E/ECE/324/Rev. 2/Add. 99/Rev. 1 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 1 
Annex 8A  
 
64  Table 1  
Frequency and acceleration  
Frequency (Hz)  Acceleration (m/s2)  
  7 - 18 10 
18 - 30 gradually reduced from 10 to 2  
30 - 50 2 
At the request of the manufacturer, a higher acceleration level as well as a 
higher maximum frequency may be used.  
At the request of the manufacturer a vibration test profile determined by the 
vehicle -manufacturer, verified for the vehicle application and agreed with the 
Technical Service may be used as a substitute for the frequency - acceleration 
correlation of Table 1. The approval of a REESS tested according to this 
condition shall be limited to approvals for a specific vehicle type.  
After the vibra tion, a standard cycle as described in Annex 8, Appendix 1 
shall  be conducted , if not inhibited by the tested -device.  
The test shall end with an observation period of 1 h at the ambient 
temperature conditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8B  
 
65 Annex 8B  
  Thermal s hock and cycling test  
1. Purpose  
The purpose of this test is to verify the resistance of the REESS to sudden 
changes in temperature. The REESS shall undergo a specified number of 
temperature cycles, which start at ambient temperature  followed by high and 
low temperature cycling. It simulates a rapid environmental temperature 
change which a REESS  would likely experience during its life.  
2. Installations  
This test shall  be conducted either with the complete REESS or with related 
REESS subsystem(s)  of the REES S including the cells and their electrical 
connections . If the manufacturer chooses to test with related s ubsystem (s), 
the manufacturer shall demonstrate that the test result can reasonably 
represent the performance of the complete REESS with respect to it s safety 
performance under the same conditions.  If the electronic management unit for 
the REESS is not integrated in the casing  enclosing the cells, then the 
electronic management  unit may be omitted from installation on the tested -
device if so requested b y the manufacturer.  
3. Procedures  
3.1. General test conditions  
The following condition s shall apply to the tested -device at the start of the 
test:  
(a) The SOC shall be adjusted to a value in the upper 50 per cent of the 
normal operating SOC range ; 
(b) All protection devices, which would affect the function of the tested -
device and which are relevant to the outcome of the test shall be 
operational.  
3.2.  Test procedure  
The tested -device shall be stored for at least six hours at a test temperature 
equal to 60 ± 2 °C or higher if requested by the manufacturer, followed by 
storage for at least six hours at a test temperature equal to -40 ± 2 °C or lower 
if requested by the manufacturer. The maximum time interval between test 
temperature extremes shall be 30 mi nutes. This procedure shall be repeated 
until a minimum of 5 total cycles are completed , after which the tested -device 
shall be stored for 24 hours at an ambient temperature of 20 ± 10 °C.  
After the storage for 24 hours,  a standard cycle as described in An nex 8, 
Appendix 1 shall  be conducted , if not inhibited by the tested -device.  
The test shall end with an observation period of 1 h at the ambient 
temperature conditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8C  
 
66 Annex 8 C 
  Mechanical  shock  
1.  Purpose  
The purpose of this t est is to verify the safety performance  of the REESS 
under inertial loads which may occur during a vehicle crash.  
2.  Installation  
2.1.  This test shall  be conducted either with the complete REESS or with related 
REESS subsystem(s)  including the cells and  their electrical connections . If 
the manufacturer chooses to test with related s ubsystem (s), the manufacturer 
shall demonstrate that the test result can reasonably represent the 
performance of the complete REESS with respect to its safety performance 
unde r the same conditions.  If the electronic management unit for the REESS 
is not integrated  in the casing  enclosing the cells , then the electronic 
management unit  may be omitted from installation on the tested -device if so 
requested by the manufacturer    
2.2.  The tested -device shall be connected to the test fixture only by the intended 
mountings provided for the purpose of attaching the REESS or REESS 
subsystem to the vehicle.  
3. Procedures  
3.1. General test conditions  and requirements  
The following condition  shall apply to the test : 
(a) The test shall  be conducted at an ambient temperature of 20  ± 10 °C, 
(b) At the beginning of the test, the SOC shall be adjusted to a value in 
the upper 50 per cent of the normal operating SOC range ; 
(c) At the beginning of th e test , all protection devices which effect the 
function of the tested -device and which are relevant to the outcome of 
the test, shall be operational.  
3.2. Test procedure  
The tested -device shall be decelerated or, at the choice of the applicant, 
accelerate d in compliance with the acceleration corridors which are specified 
in Tables 1 to 3. The Technical Service in consultation with the manufacturer 
shall decide whether the tests shall be conducted in either the positive or 
negative direction or both.  
For ea ch of the test pulses specified, a separate tested -device may be used.  
The test pulse shall be within the minimum and maximum value as specified 
in Tables 1 to 3. A higher shock level and /or longer duration as described in 
the maximum value in Tables 1 t o 3 can be applied to the tested -device if 
recommended by the manufacturer.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8C  
 
 67 Figure 1  
Generic description of test pulses  
 
Table 1 for M 1 and N 1 vehicles:  
Point  Time (ms)  Acceleration (g)  
Longitudinal  Transverse  
A 20 0 0 
B 50 20 8 
C 65 20 8 
D 100 0 0 
E 0 10 4.5 
F 50 28 15 
G 80 28 15 
H 120 0 0 
 
Table 2 for M 2 and N 2 vehicles:  
Point  Time (ms)  Acceleration (g)  
Longitudinal  Transverse  
A 20 0 0 
B 50 10 5 Time Acceleration  Maximum  curve  
Minimum  curve  
A B C 
D E F G 
H E/ECE /324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8C  
 
68  C 65 10 5 
D 100 0 0 
E 0 5 2.5 
F 50 17 10 
G 80 17 10 
H 120 0 0 
Table 3 for M 3 and N 3 vehicles:  
Point  Time (ms)  Acceleration (g)  
Longitudinal  Transverse  
A 20 0 0 
B 50 6,6 5 
C 65 6,6 5 
D 100 0 0 
E 0 4 2.5 
F 50 12 10 
G 80 12 10 
H 120 0 0 
The test shall end with an observation period of 1 h at the ambien t 
temperature conditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8D  
 
69 Annex 8 D 
  Mechanical integrity  
1. Purpose  
The purpose of this test is to verify the safety performance  of the REESS 
under contact  loads which may occur during vehicle crash situation.  
2. Installations  
2.1.  This test shall be conducted with either the complete REESS or with a related 
REESS subsystem(s) including the cells and their electrical connections. If the 
manufacturer chooses to test with related subsystem(s), the manufacturer shall 
demonstrate th at the test result can reasonably represent the performance of the 
complete REESS with respect to its safety performance under the same 
conditions. If the electronic management unit for the REESS is not integrated  in 
the casing  enclosing the cells , then the electronic management unit may be 
omitted from installation on the tested -device if so requested by the manufacturer.  
2.2.  The tested -device shall be connected to the test fixture as recommended by 
the manufacturer.  
3. Procedures  
3.1. General  test condi tions  
The following condition and requirements shall apply to the test :  
(a) The test shall  be conducted at an ambient temperature of 20  ± 10 °C ; 
(b) At the beginning of the test, the SOC shall be adjusted to a value in 
the upper 50  per cent of the normal operating SOC range ; 
(c) At the beginning of the test , all internal and external protection 
devices which would affect the function of the tested -device and 
which are relevant to the outcome of the test shall be operational.  
3.2. Crush test  
3.2.1.   Crush force  
The tested -device shall be crushed between a resistance and a crush plate as 
described in Figure 1 with a force of at least 100 kN, but not exceeding 
105 kN, unless otherwise specified in accordance with paragraph 6.4.2 . of 
this Regulation, with an onset time less than 3  minutes and a hold time of at 
least 100 ms but not exceeding 10  s. 
Figure 1  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8D  
 
70  
 
 
A higher crush force, a longer onset time, a longer hold time, or a 
combination of these, may be applied at the request of the manufacturer.  
The applicat ion of the force shall be decided by the manufacturer together 
with the Technical Service having consideration to the direction of travel of 
the REESS relative to its installation in the vehicle. The application force 
being applied horizontally and perpend icular to the direction of travel of the 
REESS.  
The test shall end with an observation period of 1 h at the ambient 
temperature conditions of the test environment.  Dimension of the crush plate:  
600 mm x 600 mm or smaller  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8E  
 
71 Annex 8 E 
  Fire resistance  
1. Purpose  
The purpose of this test is to verify the resistance of the REESS , against  
exposure to fire from outside of the vehicle due to e.g. a fuel spill from a 
vehicle (either the vehicle itself or a nearby vehicle). This situation should 
leave the driver and passengers with enough time to evacuate.  
2. Installation s 
2.1. This test shall be conducted either with the complete REESS or with related 
REESS subsystem(s) including  the cells and their electrical connections.  If 
the manufacturer chooses to test with related subsystem(s), the manufacturer 
shall demonstrate th at the test result can reasonably represent the 
performance of the complete REESS with respect to its safety performance 
under the same conditions.  If the electronic management unit for the REESS 
is not integrated in the casing enclosing the cells, then th e electronic 
management unit may be omitted from installation on the tested -device if so 
requested by the manufacturer.  Where the relevant REESS subsystems are  
distributed throughout the vehicle , the test may be conducted on each 
relevant of the REESS sub system.    
3. Procedures  
3.1. General test conditions  
The following requirements and condition s shall apply to the test :  
(a) The test shall  be conducted at a temperature  of at least 0  °C; 
(b) At the beginning of the test, the SOC shall be adjusted to a val ue in 
the upper 50 per cent of the normal operating SOC range ; 
(c) At the beginning of the test , all protection devices which effect the 
function of the tested -device and are relevant for the outcome of the 
test shall be operational.  
3.2.  Test procedure  
A vehicle based test or a component based test shall be performed a t the 
discretion  of the manufacturer : 
3.2.1.  Vehicle based test  
The tested -device shall be mounted in a testing fixture simulating actual 
mounting conditions as far as possible; no combusti ble material should be 
used for this with the exception of material that is part of the REESS. The 
method whereby the tested -device is fixed in the fixture shall correspond to 
the relevant specifications for its installation in a vehicle. In the case of a 
REESS designed for a specific vehicle use, vehicle parts which affect the 
course of the fire in any way shall be taken into consideration.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/5 05/Rev. 2/Add. 99/Rev. 2 
Annex 8E  
 
72  3.2.2.  Component based test  
The tested -device shall be placed on a grating table positioned above the pan , 
in an or ientation according to the manufacturer ’s design intent .  
The grating table shall be constructed by steel rods, diameter 6 -10 mm, with 
4-6 cm in between. If needed the steel rods could be supported by flat steel 
parts.  
3.3. The flame to which the tested -device is exposed shall be obtained by burning 
commercial fuel for positive -ignition engines (hereafter called "fuel") in a 
pan. The quantity of fuel shall be sufficient to permit the flame, under free -
burning conditions, to burn for the whole test procedure . 
The fire shall cover the whole area of the pan during whole fire exposure. 
The pan dimensions shall be chosen so as to ensure that the sides of the 
tested -device are exposed to the flame. The pan shall therefore exceed the 
horizontal projection of the te sted-device by at least 20 cm, but not more than 
50 cm. The sidewalls of the pan shall not project more than 8 cm above the 
level of the fuel at the start of the test.  
3.4. The pan filled with fuel shall be placed under the tested -device in such a way 
that the distance between the level of the fuel in the pan and the bottom of the 
tested -device corresponds to the design height of the tested -device above the 
road surface at the unladen mass  if paragraph 3.2.1. above is applied or 
approximately 50 cm if paragraph 3.2.2. above is applied . Either the pan, or 
the testing fixture, or both, shall be freely movable.  
3.5. During phase C of the test, the pan shall be covered by a screen. The screen 
shall be placed 3 cm +/- 1 cm above the fuel level measured prior to t he 
ignition of the fuel. The screen shall be made of a refractory material, as 
prescribed in Annex 8E - Appendix 1 . There shall be no gap between the 
bricks and they shall be supported over the fuel pan in such a manner that the 
holes in the bricks are not  obstructed. The length and width of the frame shall 
be 2 cm to 4 cm smaller than the interior dimensions of the pan so that a gap 
of 1 cm to 2 cm exists between the frame and the wall of the pan to allow 
ventilation. Before the test the screen shall be at  least at the ambient 
temperature. The firebricks may be wetted in order to guarantee repeatable 
test conditions.  
3.6. If the tests are carried out in the open air, sufficient wind protection shall be 
provided and the wind velocity at pan level shall not e xceed 2.5  km/h.  
3.7. The test shall comprise of three phases B -D, if the fuel is at least at 
temperature of 20 °C.  Otherwise the test shall comprise four phases  
A–D. 
3.7.1. Phase A: Pre -heating (Figure 1)  
The fuel in the pan shall be ignited at a distanc e of at least 3 m from the 
tested -device. After 60 seconds pre -heating, the pan shall be placed under the 
tested -device. If the size of the pan is too large to be moved without risking 
liquid spills etc. then the tested -device and test rig can be moved ove r the pan 
instead.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8E  
 
 73 Figure 1  
Phase A: Pre -heating  
 
3.7.2. Phase B: Direct exposure to flame (Figure 2)  
The tested -device shall be exposed to the flame from the freely burning fuel 
for 70 seconds.  
 
Figure 2  
Phase B: Direct exposure to flame  
 
3.7.3.   Phase C: Indirect exposure to flame (Figure 3)  
As soon as phase B has been completed, the screen shall be placed between 
the burning pan and the tested -device.  The tested -device shall  be exposed to 
this reduced flame for a further 60 seconds.  
Instead of conducting phase C of the test, phase B may at the manufacturer’s 
discretion be continued for an additional 60 seconds.  
However this shall only be permitted where it is demonstrable to  the 
satisfaction of the Technical Service that it will not result in a reduction in the 
severity of the test.  
 Tested Device  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/5 05/Rev. 2/Add. 99/Rev. 2 
Annex 8E  
 
74  Figure 3  
Phase C: Indirect exposure to flame  
 
3.7.4. Phase D: End of test (Figure 4)  
The burning pan covered with the screen shall be moved ba ck to the position 
described in phase A. No extinguishing of the tested -device shall be done. 
After removal of the pan the tested -device shall be observed until such time 
as the surface temperature of the tested -device  has decreased to ambient 
temperature or has been decreasing for a minimum of 3 hours.  
Figure 4  
Phase D: End of test  
 
 
 E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8E – Appendix 1  
 
75 Annex 8 E - Appendix 1  
  Dimension and technical data of firebricks  
 
Fire resistance:   (Seger -Kegel) SK 30  
Al2O3 content:   30 - 33 per cent  
Open porosity (Po):   20 - 22 per  cent vol.  
Density:    1,900 - 2,000 kg/m3  
Effective holed area:   44.18 per cent  E/EC E/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8F  
 
76 Annex 8 F 
  External short circuit protection  
1. Purpose  
The purpose of this test is to verify the performance of the short circuit 
protection. This functionality, if implemen ted, shall interrupt or limit the 
short circuit current to prevent the REESS from any further related severe 
events caused by short circuit current.  
2. Installations  
This test shall  be conducted either with the complete REESS or with related 
REESS subsyste m(s), including the cells and their electrical connections . If 
the manufacturer chooses to test with related s ubsystem (s), the manufacturer 
shall demonstrate that the test result can reasonably represent the 
performance of the complete REESS with respect t o its safety performance 
under the same conditions.  If the electronic management unit for the REESS 
is not integrated in the casing  enclosing the cells, then  the electronic 
management unit  may be omitted from installation on the tested -device if so 
request ed by the manufacturer.  
3. Procedures  
3.1.  General test conditions  
The following condition shall apply to the test :  
(a) The test shall  be conducted at a ambient temperature of 20  ± 10 °C or 
at higher temperature if requested by the manufacturer ; 
(b) At the beginning of the test, the SOC shall be adjusted to a value in 
the upper 50 per cent of the normal operating SOC range ; 
(c) At the beginning of the test , all protection devices which would affect 
the function of the tested -device and which are relevant to the 
outcome of the test shall be operational.  
3.2. Short circuit  
At the start of the test all relevant main contactors for charging and 
discharging shall be closed to represent the active driving possible mode as 
well as the mode to enable external char ging. If this cannot be completed in a 
single test, then two or more tests shall be conducted.  
The positive and negative terminals of the tested -device s hall be connected to 
each other to produce a short circuit. The connection used for this purpose 
shall  have a resistance not exceed ing 5 mΩ .  
The short circuit condition shall be continued until the operation of the 
REESS´s protection function to interrupt or limit the short circuit current is 
confirmed, or for at least one hour after the temperature measured on the 
casing of the tested -device has stabilised, such that the temperature gradient 
varies by a less than 4  °C through 1 hour.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8F  
 
 77 3.3.   Standard cycle and observation period  
Directly after the termination of the short circuit a standard cycle as described 
in Annex 8, Appendix 1 shall  be conducted , if not inhibited by the tested -
device.  
The test shall end with an observation period of 1 h at the ambient 
temperature conditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8G  
 
78 Annex 8 G 
Overcharge protection  
1. Purpose  
The purpose of this test is to verify the performance of the overcharge 
protection.  
2. Installations  
This test shall  be conducted, under standard operating conditions,  either with 
the complete REESS (this maybe a complete vehicle) or with related REESS 
subsystem(s), including the cells and their electrical connections . If the 
manufacturer chooses to test with related s ubsystem (s), the manufacturer 
shall demonstrate that the test result can reasonably represent the 
performance of the complete REESS with respect to its safety performance 
under the s ame conditions.   
The test may be performed with a modified tested -device as agreed by the 
manufacturer and the Technical Service. These modifications shall not 
influence the test results.  
3. Procedures  
3.1. General test conditions  
The following requirement s and condition s shall apply to the test :  
(a) The test shall  be conducted at an ambient temperature of 20  ± 10 °C or 
at higher temperature if requested by the manufacturer ; 
(b) At the beginning of the test , all protection devices which would affect 
the fu nction of the tested -device and which are relevant to the 
outcome of the test shall be operational.  
3.2. Charging  
At the beginning all relevant main contactors for charging shall be closed.  
The charge control limits of the test equipment shall be disabled . 
The tested -device shall be charged with a charge current of at least 1/3C rate 
but not exceeding the maximum current within the normal operating range as 
specified by the manufacturer.  
The charging shall be continued until the tested -device (automaticall y) 
interrupts or limits the charging. Where an automatic interrupt function fails 
to operate, or if there is no such function the charging shall be continued until 
the tested -device  is charged to twice of its rated charge capacity.  
3.3. Standard cycle and observation period  
Directly after the termination of charging a standard cycle as described in 
Annex 8, Appendix 1  shall  be conducted , if not inhibited by the tested -
device . 
The test shall end with an observation period of 1 h at the ambient 
temperature co nditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8H  
 
 79 Annex 8 H 
  Over -discharge protection  
1. Purpose  
The purpose of this test is to verify the performance of the over -discharge 
protection. This functionality, if implemented, shall interrupt or limit the 
discharge current to  prevent the REESS from any severe events caused by a 
too low SOC as specified by the manufacturer.  
2. Installations  
This test shall  be conducted, under standard operating conditions,  either with 
the complete REESS (this maybe a complete vehicle) or with r elated REESS 
subsystem(s), including the cells and their electrical connections . If the 
manufacturer chooses to test with related s ubsystem (s), the manufacturer 
shall demonstrate that the test result can reasonably represent the 
performance of the complete  REESS with respect to its safety performance 
under the same conditions.   
The test may be performed with a modified tested -device as agreed by the 
manufacturer and the Technical Service. These modifications shall not 
influence the test results.  
3. Procedur es 
3.1. General test conditions  
The following requirements and condition shall apply to the test :  
(a) The test shall  be conducted at an ambient temperature of 20  ± 10 °C or 
at higher temperature if requested by the manufacturer ; 
(b) At the beginning of th e test , all protection devices which would affect 
the function of the tested -device and which are relevant for the 
outcome of the test shall be operational.  
3.2.   Discharging  
At the beginning of the test, all relevant main contactors shall be closed.  
A discharge shall be performed with at least 1/3 C rate but shall not exceed 
the maximum current within the normal operating range as specified by the 
manufacturer.  
The discharging shall be continued until the tested -device (automatically) 
interrupts or limits  the discharging . Where an automatic interrupt function 
fails to operate, or if there is no such function then the discharging shall be 
continued until the tested -device  is discharged to 2 5 per cent  of its nominal 
voltage level.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8H  
 
80  3.3.  Standard charge and o bservation period  
Directly after termination of the discharging the tested -device shall be 
charged with a standard charge as specified in Annex 8 , Appendix 1  if not 
inhibited by the tested -device.  
The test shall end with an observation period of 1 h at the  ambient 
temperature conditions of the test environment.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/ 505/Rev. 2/Add. 99/Rev. 2 
Annex 8I  
 
81 Annex 8 I 
  Over -temperature protection  
1. Purpose  
The purpose of this test is to verify the performance of the protection 
measures of the REESS against internal overheating during the operation, 
even under the failure of the cooling function if applicable. In the case that no 
speci fic protecti on measures are necessary to prevent the REESS from 
reaching an unsafe state due to internal over -temperature, this safe operation 
must be demonstrated.  
2. Installations  
2.1. The following test may be conducted with the complete REESS (maybe as a 
complete  vehicle) or with related REESS subsystem(s),  including the cells 
and their electrical connections . If the manufacturer chooses to test with 
related s ubsystem (s), the manufacturer shall demonstrate that the test result 
can reasonably represent the performance of the complete REESS with 
respect to its safety performance under the same conditions.  The test may be 
performed with a modified tested -device as agreed by the manufacturer and 
the Technical Service. These modifications shall not influence the test results.  
2.2. Where a REESS is fitted with a cooling function and where the REESS will 
remain functional without a cooling function system being operational, the 
cooling system shall be deactivated for the test.  
2.3. The temperature of the tested -device  shall be continuously measured in side 
the casing in the proximity of the cells during the test in order to monitor the 
changes  of the temperature. The onboard senso r if existing may be used. The 
manufacturer and Technical Service shall agree on the location of the 
temperature sensor(s) used.  
3. Procedures  
3.1. At the beginning of the test , all protection devices which affect the function 
of the tested -device and are relevant to the outcome of the test shall be 
operational , except for any system deactivation implemented in accordance 
with paragraph 2.2 . above.  
3.2. During the test, the tested -device shall be continuously charged and 
discharged with a steady current tha t will increase the temperature of cells as 
rapidly as possible within the range of normal operation as defined by the 
manufacturer.  
3.3. The tested -device shall be placed in a convective oven or climatic chamber. 
The temperature of the chamber or oven sh all be gradually increased until it 
reaches the temperature determined in accordance with paragraph 3.3.1 . or 
3.3.2 . below as applicable, and then maintained at a temperature that is equal 
to or higher than this, until the end of the test.  E/ECE/324/Rev. 2/Add. 99/Rev. 2 
E/ECE/TRANS/505/Rev. 2/Add. 99/Rev. 2 
Annex 8I  
 
82  3.3.1.  Where th e REESS is equipped with protective measures against  internal 
overheating , the temperature shall be increased to the temperature defined by 
the manufacturer  as being the operation al temperature  threshold for such 
protective measures, to insure that the tem perature of the tested -device  will 
increase as specified in paragraph 3.2.  above.  
3.3.2.  Where the REESS is not equipped with an y specific measures against 
internal over -heating , the temperature  shall be increased to the maximum 
operational temperature spe cified by the manufacturer.  
3.4. The end of test: The test will end when one of the followings is observed:  
(a) The tested -device  inhibits and/or limits the charge and/or discharge to 
prevent the temperature increase ; 
(b) The temperature of the tested -device is stabilised, which means that 
the temperature varies by a gradient of less than 4  °C through 2 hours ; 
(c) Any failure of the acceptance criteria prescribed in paragraph 6.9.2.1.  
of the Regulation.