1972L0245 — EN — 01.05.2004 — 003.001

This document is meant purely as a documentation tool and the institutions do not assume any liability for its contents

Amended by:





Amended by:









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COUNCIL DIRECTIVE 72/245/EEC

of 20 June 1972

relating to the radio interference (electromagnetic compatibility) of vehicles

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THE COUNCIL OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, and in particular Article 100 thereof; Having regard to the proposal from the Commission; Having regard to the Opinion of the European Parliament; Having regard to the Opinion of the Economic and Social Committee; Whereas the technical requirements which motor vehicles fitted with a spark-ignition engine must satisfy pursuant to national laws relate, inter alia, to the suppression of radio interference produced by such vehicles; Whereas those requirements differ from one Member State to another; whereas it is therefore necessary that all Member States adopt the same requirements either in addition to or in place of their existing requirements, in order, in particular, to allow the EEC type approval procedure which was the subject of the Council Directive of 6 February 1970 ( 1 ) on the approximation of the laws of the Member States relating to the type approval of motor vehicles and their trailers to be applied in respect of each type of vehicle; Whereas it is desirable to follow the technical requirements adopted by the UN Economic Commission for Europe in its Regulation No 10 (Uniform provisions concerning the approval of vehicles with regard to radio interference suppression), which is annexed to the Agreement of 20 March 1958 concerning the adoption of uniform conditions of approval and reciprocal recognition of approval for motor vehicle equipment and parts ( 2 ); HAS ADOPTED THIS DIRECTIVE:







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Article 1

For the purpose of this Directive, ‘vehicle’ means any vehicle as defined in Directive 70/156/EEC.

Article 2

No Member State may refuse to grant EEC type-approval or national type-approval of a vehicle, component or separate technical unit on grounds relating to electromagnetic compatibility if the requirements of this Directive are fulfilled.

Article 3

1. This Directive shall constitute a ‘specific directive’ for the purposes of Article 2 (2) of Council Directive 89/336/EEC ( 3 ) with effect from 1 January 1996.

2. Vehicles, components or separate technical units approved pursuant to this Directive shall be considered to fulfil the provisions of other directives, cited in Annex IV to Council Directive 92/53/EEC ( 4 ), which refer to electromagnetic compatibility.

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Article 4

The amendments necessary for adjusting the requirements of the Annexes so as to take account of technical progress shall be adopted in accordance with the procedure laid down in Article 13 of the Council Directive of 6 February 1970 on the type approval of motor vehicles and their trailers.

Article 5

1. Member States shall put into force the provisions needed in order to comply with this Directive within eighteen months of its notification and shall forthwith inform the Commission thereof.

2. Member States shall ensure that the texts of the main provisions of national law which they adopt in the field covered by this Directive are communicated to the Commission.

Article 6

This Directive is addressed to the Member States.

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LIST OF ANNEXES

ANNEX I Requirements to be met by vehicles and electrical/electronic sub-assemblies fitted to a vehicle ANNEX IIA Model information document for EEC type-approval of a vehicle with respect to electromagnetic compatibility ANNEX IIB Model information document for EEC type-approval of an electrical/electronic sub-assembly with respect to electromagnetic compatibility ANNEX IIIA Model: EEC type-approval certificate (vehicle) ANNEX IIIB Model: EEC type-approval certificate (electrical/electronic sub-assembly) ANNEX IV Method of measurement of radiated broadband electromagnetic emissions from vehicles ANNEX V Method of measurement of radiated narrowband electromagnetic emissions from vehicles ANNEX VI Method of testing for immunity of vehicles to electromagnetic radiation ANNEX VII Method of measurement of radiated broadband electromagnetic emissions from electrical/electronic sub-assemblies ANNEX VIII Method of measurement of radiated narrowband electromagnetic emissions from electrical/electronic sub-assemblies ANNEX IX Method(s) of testing of immunity of electrical/electronic sub-assemblies to electromagnetic radiation









ANNEX I

REQUIREMENTS TO BE MET BY VEHICLES AND ELECTRICAL/ELECTRONIC SUB-ASSEMBLIES FITTED TO A VEHICLE

1. Scope

1.1. This Directive applies to the electromagnetic compatibility of vehicles covered in Article 1, being vehicles or trailers (hereinafter referred to as vehicle(s)) as supplied by the vehicle manufacturer and to components or separate technical units intended for fitment in vehicles.

2. Definitions

2.1. For the purposes of this Directive:

2.1.1. ‘Electromagnetic compatibility’ means the ability of a vehicle or component(s) or separate technical unit(s) to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in that environment.

2.1.2. ‘Electromagnetic disturbance’ means any electromagnetic phenomenon which may degrade the performance of a vehicle or component(s) or separate technical unit(s). An electromagnetic disturbance may be electromagnetic noise, an unwanted signal or a change in the propagation medium itself.

2.1.3. ‘Electromagnetic immunity’ means the ability of a vehicle or component(s) or separate technical unit(s) to perform without degradation of performance in the presence of specified electromagnetic disturbances.

2.1.4. ‘Electromagnetic environment’ means the totality of electromagnetic phenomena existing at a given location.

2.1.5. ‘Reference limit’ means the nominal level to which type approval and conformity of production limit values are referenced.

2.1.6. ‘Reference antenna’ for the frequency range 20 to 80 MHz: means a shortened balanced dipole being a half wave resonant dipole at 80 MHz, and for the frequency range above 80 MHz: means a balanced half wave resonant dipole tuned to the measurement frequency.

2.1.7. ‘Broadband emission’ means an emission which has a bandwidth greater than that of a particular measuring apparatus or receiver.

2.1.8. ‘Narrowband emission’ means an emission which has a bandwidth less than that of a particular measuring apparatus or receiver.

2.1.9. ‘Electrical/electronic system’ means (an) electrical and/or electronic device(s) or set(s) of devices together with any associated electrical connections which form part of a vehicle but which are not intended to be type approved separately from the vehicle.

2.1.10. ‘Electrical/electronic sub-assembly’ (ESA) means an electrical and/or electronic device or set(s) of devices intended to be part of a vehicle, together with any associated electrical connections and wiring, which performs one or more specialized functions. An ESA may be approved at the request of a manufacturer as either a ‘component’ or a ‘separate technical unit (STU)’ (see Directive 70/156/EEC, Article 2).

2.1.11. ‘Vehicle type’ in relation to electromagnetic compatibility means vehicles which do not differ essentially in such respects as:

2.1.11.1. the overall size and shape of the engine compartment;

2.1.11.2. the general arrangement of the electrical and/or electronic components and the general wiring arrangement;

2.1.11.3. the primary material of which the body or shell (if applicable) of the vehicle is constructed (for example, a steel, aluminium or fibreglass body shell). The presence of panels of different material does not change the vehicle type provided the primary material of the body is unchanged. However, such variations must be notified.

2.1.12. An ‘ESA type’ in relation to electromagnetic compatibility means ESAs which do not differ in such essential respects as:

2.1.12.1. the function performed by the ESA;

2.1.12.2. the general arrangement of the electrical and/or electronic components, if applicable.

3. Application for EEC type-approval

3.1. Approval of a vehicle type

3.1.1. The application for approval of a vehicle type, with regard to its electromagnetic compatibility pursuant to Article 3 (4) of Directive 70/156/EEC shall be submitted by the vehicle manufacturer.

3.1.2. A model for the information document is given in Annex IIA.

3.1.3. The vehicle manufacturer shall draw up a schedule describing all projected combinations of relevant vehicle electrical/electronic systems or ESAs, body styles ( 5 ), variations in body material ( 6 ), general wiring arrangements, engine variations, left-hand/right-hand drive versions and wheelbase versions. Relevant vehicle electrical/electronic systems or ESAs are those which may emit significant broadband or narrowband radiation and/or those which are involved in the driver's direct control (see paragraph 6.4.2.3 of this Annex) of the vehicle.

3.1.4. A representative vehicle shall be selected from this schedule for the purpose of being tested, in mutual agreement between the manufacturer and the competent authority. This vehicle shall represent the vehicle type (see Appendix 1 to Annex IIA). The choice of vehicle, shall be based on the electrical/electronic systems offered by the manufacturer. One more vehicle may be selected from this schedule for the purpose of being tested if it is considered by mutual agreement between the manufacturer and the competent authority that different electrical/electronic systems are included which are likely to have a significant effect on the vehicle's electromagnetic compatibility compared with the first representative vehicle.

3.1.5. The choice of the vehicle(s) in conformity with paragraph 3.1.4 is limited to vehicle/electrical/electronic system combinations intended for actual production.

3.1.6. The manufacturer may supplement the application with a report from tests which have been carried out. Any such data provided may be used by the approval authority for the purpose of drawing up the type-approval certificate.

3.1.7. If the technical service responsible for the type-approval test carries out the test itself, then a vehicle representative of the type to be approved, according to paragraph 3.1.4 shall be provided.

3.2. Approval of a type of ESA

3.2.1. The application for approval of a type of ESA with regard to its electromagnetic compatibility pursuant to Article 3 (4) of Directive 70/156/EEC shall be submitted by the vehicle manufacturer or by the manufacturer of the ESA.

3.2.2. A model for the information document is given in Annex IIB.

3.2.3. The manufacturer may supplement the application with a report from tests which have been carried out. Any such data provided may be used by the approval authority for the purpose of drawing up the type-approval certificate.

3.2.4. If the technical service responsible for the type-approval test carries out the test itself, then a sample of the ESA system representative of the type to be approved shall be provided, if necessary, after discussion with the manufacturer on, for example, possible variations in the layout, number of components, number of sensors. If the technical service deems it necessary, it may select a further sample.

3.2.5. The sample(s) must be clearly and indelibly marked with the manufacturer's trade name or mark and the type designation.

3.2.6. Where applicable, any restrictions on use should be identified. Any such restrictions should be included in Annexes IIB and/or IIIB.

4. Type-approval

4.1. Routes to type-approval

4.1.1. Type-approval of a vehicle The following alternative routes to type-approval of a vehicle may be used at the discretion of the vehicle manufacturer.

4.1.1.1. Approval of a vehicle installation A vehicle installation may achieve type-approval directly by following the provisions laid down in paragraph 6 of this Annex. If this route is chosen by a vehicle manufacturer, no separate testing of electrical/electronic systems or ESAs is required.

4.1.1.2. Approval of vehicle type by testing of individual ESAs A vehicle manufacturer may obtain approval for the vehicle by demonstrating to the approval authority that all the relevant (see paragraph 3.1.3 of this Annex) electrical/electronic systems or ESAs have individually been approved in accordance with this Directive and have been installed in accordance with any conditions attached thereto.

4.1.1.3. A manufacturer, if he wishes, may obtain approval to this Directive if the vehicle has no equipment of the type which is subject to immunity or emission tests. The vehicle shall have no systems as specified in paragraph 3.1.3 (immunity) and no spark ignition equipment. Such approvals do not require testing.

4.1.2. Type-approval of an ESA Type-approval may be granted to an ESA to be fitted either to any vehicle type or to a specific vehicle type or types requested by the manufacturer. ESAs involved in the direct control of vehicles will normally receive type-approval in conjunction with a vehicle manufacturer.

4.2. Granting of type-approval

4.2.1. Vehicle

4.2.1.1. If the representative vehicle fulfils the requirements of this Directive, EEC type-approval pursuant to Article 4 (3), and if applicable, Article 4 (4) of Directive 70/156/EEC shall be granted.

4.2.1.2. A model for the EEC type-approval certificate is given in Annex IIIA.

4.2.2. ESA

4.2.2.1. If the representative ESA system(s) fulfil(s) the requirements of this Directive, EEC type-approval pursuant to Article 4 (3), and if applicable, Article 4 (4) of Directive 70/156/EEC shall be granted.

4.2.2.2. A model for the EEC type-approval certificates is given in Annex IIIB.

4.2.3. In order to draw up the certificates referred to in paragraph 4.2.1.2 or 4.2.2.2, the competent authority of the Member State granting the approval may use a report prepared by an approved or recognized laboratory or in accordance with the provisions of this Directive.

4.3. Amendments to approvals

4.3.1. In the case of amendments to approvals granted pursuant to this Directive, the provisions of Article 5 of Directive 70/156/EEC shall apply.

4.3.2. Amendment of a vehicle type-approval by ESA addition or substitution.

4.3.2.1. Where a vehicle manufacturer has obtained approval for a vehicle installation and wishes to fit an additional or substitutional electrical/electronic system or ESA which has already received approval pursuant to this Directive, and which will be installed in accordance with any conditions attached thereto, the vehicle approval may be amended without further testing. The additional or substitutional electrical/electronic system or ESA shall be considered as part of the vehicle for conformity of production purposes.

4.3.2.2. Where the additional or substitutional part(s) has (have) not received approval pursuant to this Directive, and if testing is considered necessary, the whole vehicle shall be deemed to comply if the new or revised part(s) can be shown to comply with the relevant requirements of paragraph 6 or if, in a comparative test, the new part can be shown not to be likely to adversely affect compliance of the vehicle type.

4.3.2.3. The addition by a vehicle manufacturer to an approved vehicle of standard domestic or business equipment, other than mobile communication equipment ( 7 ) which complies with Directive 89/336/EEC, and is installed according to the recommendations of the equipment and vehicle manufacturers, or the substitution or removal thereof, shall not invalidate the vehicle approval. This shall not preclude vehicle manufacturers fitting communication equipment with suitable installations guidelines developed by the vehicle manufacturer and/or manufacturer(s) of such communication equipment. The vehicle manufacturer shall provide evidence (if requested by the test authority) that vehicle performance is not adversely affected by such transmitters. This can be a statement that the power levels and installation are such that the immunity levels of this Directive offer sufficient protection when subject to transmission alone, i.e. excluding transmission in conjunction with the tests specified in paragraph 6. This Directive does not authorize the use of a communication transmitter when other requirements on such equipment or its use apply. A vehicle manufacturer may refuse to install in his vehicle standard domestic or business equipment which complies with Directive 89/336/EEC.

5. Marking

5.1. Every ESA conforming to a type approved pursuant to this Directive shall bear an EEC type-approval mark.

5.2. This mark shall consist of a rectangle surrounding the letter ‘e’ followed by the distinguishing number or letters of the Member State which has granted type-approval:



1 Germany 2 France 3 Italy 4 the Netherlands 6 Belgium ▼A1 7 Hungary 8 the Czech Republic ▼M2 9 Spain 11 the United Kingdom 13 Luxembourg 18 Denmark ▼A1 20 Poland ▼M2 21 Portugal 23 Greece ▼A1 26 Slovenia 27 Slovakia 29 Estonia 32 Latvia 36 Lithuania CY Cyprus ▼M2 IRL Ireland ▼A1 MT Malta ▼M2 It must also include in the vicinity of the rectangle the four-digit sequential number (with leading zeros as applicable) — hereinafter referred to as ‘base approval number’ — contained in Section 4 of the type-approval number shown on the EEC type-approval certificate issued for the type of device in question (see Annex IIIB), preceded by the two figures indicating the sequence number assigned to the most recent major technical amendment to Directive 72/245/EEC on the date EEC component type-approval was granted. In this Directive the sequence number is 02.

5.3. The EEC type-approval mark must be affixed to the main part of the ESA (e.g. the electronic control unit) in such a way as to be clearly legible and indelible.

5.4. An example of the EEC type-approval mark is shown in Appendix 7.

5.5. No marking is required for electrical/electronic systems included in vehicle types approved by this Directive.

5.6. Markings on ESAs in compliance with paragraph 5.3 need not be visible when the ESA is installed in a vehicle.

6. Specifications

6.1. General specification

6.1.1. A vehicle (and its electrical/electronic system(s) or ESAs) shall be so designed, constructed and fitted as to enable the vehicle, in normal conditions of use, to comply with the requirements of this Directive.

6.2. Specifications concerning broadband electromagnetic radiation from vehicles fitted with spark ignition.

6.2.1. Method of measurement The electromagnetic radiation generated by the vehicle representative of its type shall be measured using the method described in Annex IV at either of the defined antenna distances. The choice shall be made by the vehicle manufacturer.

6.2.2. Vehicle broadband reference limits

6.2.2.1. If measurements are made using the method described in Annex IV using a vehicle-to-antenna spacing of 10,0 ± 0,2 m, the radiation reference limits shall be 34 dB microvolts/m (50 microvolts/m) in the 30 to 75 MHz frequency band and 34 to 45 dB microvolts/m (50 to 180 microvolts/m) in the 75 to 400 MHz frequency band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 1 to this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 45 dB microvolts/m (180 microvolts/m).

6.2.2.2. If measurements are made using the method described in Annex IV using a vehicle-to-antenna spacing of 3,0 ± 0,05 m, the radiation reference limits shall be 44 dB microvolts/m (160 microvolts/m) in the 30 to 75 MHz frequency band and 44 to 55 dB microvolts/m (160 to 562 microvolts/m) in the 75 to 400 MHz frequency band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 2 to this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 55 dB microvolts/m (562 microvolts/m).

6.2.2.3. On the vehicle representative of its type, the measured values, expressed in dB microvolts/m, (microvolts/m), shall be at least 2,0 dB (20 %) below the reference limits.

6.3. Specifications concerning narrowband electromagnetic radiation from vehicles.

6.3.1. Method of measurement The electromagnetic radiation generated by the vehicle repesentative of its type shall be measured using the method described in Annex V at either of the defined antenna distances. The choice shall be made by the vehicle manufacturer.

6.3.2. Vehicle narrowband reference limits

6.3.2.1. If measurements are made using the method described in Annex V using a vehicle-to-antenna spacing of 10,0 ± 0,2 m, the radiation-reference limits shall be 24 dB microvolts/m (16 microvolts/m) in the 30 to 75 MHz frequency band and 24 to 35 dB microvolts/m (15 to 56 microvolts/m) in the 75 to 400 MHz frequency band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 3 of this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 35 dB microvolts/m (56 microvolts/m).

6.3.2.2. If measurements are made using the method described in Annex V using a vehicle-to-antenna spacing of 3,0 ± 0,05 m, the radiation reference limit shall be 34 dB microvolts/m (50 microvolts/m) in the 30 to 75 MHz frequency band and 34 to 45 dB microvolts/m (50 to 180 microvolts/m) in the 75 to 400 MHz frequency band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 4 to this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 45 dB microvolts/m (180 microvolts/m).

6.3.2.3. On the vehicle representative of its type, the measured values, expressed in dB microvolts/m (microvolts/m), shall be at least 2,0 dB (20 %) below the reference limit.

6.3.2.4. Notwithstanding the limits defined in paragraphs 6.3.2.1, 6.3.2.2 and 6.3.2.3 of this Annex, if, during the initial step described in Annex V, paragraph 1.3, the signal strength measured at the vehicle broadcast radio antenna is less than 20 dB microvolts (10 microvolts) over the frequency range 88 to 108 MHz, then the vehicle shall be deemed to comply with the limits for narrowband emissions and no further testing will be required.

6.4. Specifications concerning immunity of vehicles to electromagnetic radiation.

6.4.1. Method of testing The immunity to electromagnetic radiation of the vehicle representative of its type shall be tested by the method described in Annex VI.

6.4.2. Vehicle immunity reference limits.

6.4.2.1. If tests are made using the method described in Annex VI, the field strength reference level shall be 24 volts/m rms in over 90 % of the 20 to 1 000 MHz frequency band and 20 volts/m rms over the whole 20 to 1 000 MHz frequency band.

6.4.2.2. The vehicle representative of its type shall be considered as complying with immunity requirements if, during the tests performed in accordance with Annex VI, and subjected to a field strength, expressed in volts/m, of 25 % above the reference level, there shall be no abnormal change in the speed of the driven wheels of the vehicle, no degradation of performance which would cause confusion to other road users, and no degradation in the driver's direct control of the vehicle which could be observed by the driver or other road user.

6.4.2.3. The driver's direct control of the vehicle is exercised by means of, for example, steering, braking, or engine speed control.

6.5. Specification concerning broadband electromagnetic interference generated by ESAs.

6.5.1. Method of measurement The electromagnetic radiation generated by the ESA representative of its type shall be measured by the method described in Annex VII.

6.5.2. ESA broadband reference limits

6.5.2.1. If measurements are made using the method described in Annex VII, the radiation reference limits shall be 64 to 54 dB microvolts/m (1 600 to 500 microvolts/m) in the 30 to 75 MHz frequency band, this limit decreasing logarithmically (linearly) with frequencies above 30 MHz, and 54 to 65 dB microvolts/m (500 to 1 800 microvolts/m) in the 75 to 400 MHz band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 5 to this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 65 dB microvolts/m (1 800 microvolts/m).

6.5.2.2. On the ESA representative of its type, the measured values, expressed in dB microvolts/m, (microvolts/m) shall be at least 2,0 dB (20 %) below the reference limits.

6.6. Specifications concerning narrowband electromagnetic interference generated by ESAs.

6.6.1. Method of measurement The electromagnetic radiation generated by the ESA representative of its type shall be measured by the method described in Annex VIII.

6.6.2. ESA narrowband reference limits.

6.6.2.1. If measures are made using the method described in Annex VIII, the radiation reference limits shall be 54 to 44 dB microvolts/m (500 to 160 microvolts/m) in the 30 to 75 MHz frequency band, this limit decreasing logarithmically (linearly) with frequencies above 30 MHz, and 44 to 55 dB microvolts/m (160 to 560 microvolts/m) in the 75 to 400 MHz band, this limit increasing logarithmically (linearly) with frequencies above 75 MHz as shown in Appendix 6 to this Annex. In the 400 to 1 000 MHz frequency band the limit remains constant at 55 dB microvolts/m (560 microvolts/m).

6.6.2.2. On the ESA representative of its type, the measured value, expressed in dB microvolts/m (microvolts/m) shall be at least 2,0 dB (20 %) below the reference limits.

6.7. Specifications concerning immunity of ESAs to electromagnetic radiation.

6.7.1. Method(s) of testing The immunity to electromagnetic radiation of the ESA representative of its type shall be tested by the method(s) chosen from those described in Annex IX.

6.7.2. ESA immunity reference limits

6.7.2.1. If tests are made using the methods described in Annex IX, the immunity test reference levels shall be 48 volts/m for the 150 mm stripline testing method, 12 volts/m for the 800 mm stripline testing method, 60 volts/m for the TEM cell testing method, 48 mA for the bulk current injection (BCI) testing method and 24 volts/m for the free field testing method.

6.7.2.2. On the ESA representative of its type at a field strength or current expressed in appropriate linear units 25 % above the reference limit, the ESA shall not exhibit any malfunction which would cause any degradation of performance which could cause confusion to other road users or any degradation in the driver's direct control of a vehicle fitted with the system which could be observed by the driver or other road user.

7. Conformity of production

7.1. Measures to ensure the conformity of production shall be taken in accordance with the provisions laid down in Article 10 of Directive 70/156/EEC.

7.2. Conformity of production with regard to the electromagnetic compatibility of the vehicle or component of separate technical unit shall be checked on the basis of the data contained in the type-approval certificate(s) set out in Annex IIIA and/or IIIB of this Directive as appropriate.

7.3. If the authority is not satisfied with the auditing procedure of the manufacturer, then items 2.4.2 and 2.4.3 of Annex X to Directive 70/156/EEC and paragraphs 7.3.1 and 7.3.2 below shall apply.

7.3.1. If the conformity of a vehicle, component or STU taken from the series is being verified, production shall be deemed to conform to the requirements of this Directive in relation to broadband radiated emissions and narrowband radiated emissions if the levels measured do not exceed by more than 2 dB, (25 %) the reference limits prescribed in paragraphs 6.2.2.1, 6.2.2.2, 6.3.2.1 and 6.3.2.2 (as appropriate).

7.3.2. If the conformity of a vehicle, component or STU taken from the series is being verified, production shall be deemed to conform to the requirements of this Directive in relation to immunity to electromagnetic radiation if the vehicle, component or STU does not exhibit any degradation relating to the direct control of the vehicle which could be observed by the driver or other road user when the vehicle, component or STU is in the state defined in Annex VI, paragraph 4, and subjected to a field strength, expressed in volts/m, up to 80 % of the reference limits prescribed in paragraph 6.4.2.1 of this Annex.

8. Exceptions

8.1. Where a vehicle or electrical/electronic system or ESA does not include an electronic oscillator with an operating frequency greater than 9 kHz, it shall be deemed to comply with paragraph 6.3.2 or 6.6.2 of Annex I and with Annexes V and VIII.

8.2. Vehicles which do not have electrical/electronic systems or ESAs involved in the direct control of the vehicle need not be tested for immunity and shall be deemed to comply with paragraph 6.4 of Annex I and with Annex VI to this Directive.

8.3. ESAs whose functions are not involved in the direct control of the vehicle need not be tested for immunity and shall be deemed to comply with paragraph 6.7 of Annex I and with Annex IX to this Directive.

8.4. Electrostatic discharge For vehicles fitted with tyres, the vehicle body/chassis can be considered to be an electrically isolated structure. Significant electrostatic forces in relation to the vehicle's external environment only occur at the moment of occupant entry into or exit from the vehicle. As the vehicle is stationary at these moments, no type-approval test for electrostatic discharge is deemed necessary.

8.5. Conducted transients Since during normal driving, no external electrical connections are made to vehicles, no conducted transients are generated in relation to the external environment. The responsibility of ensuring that equipment can tolerate the conducted transients within a vehicle, e.g. due to load switching and interaction between systems, lies with the manufacturer. No type-approval test for conducted transients is deemed necessary.









Appendix 1

Vehicle broadband reference limits

Antenna—vehicle separation: 10 m

Frequency — megahertz — logarithmic

See Annex I, Section 6.2.2.1









Appendix 2

Vehicle broadband reference limits

Antenna—vehicle separation: 3 m

Frequency — megahertz — logarithmic

See Annex I, Section 6.2.2.2









Appendix 3

Vehicle narrowband reference limits

Antenna—vehicle separation: 10 m

Frequency — megahertz — logarithmic

See Annex I, Section 6.3.2.1









Appendix 4

Vehicle narrowband reference limits

Antenna—vehicle separation: 3 m

Frequency — megahertz — logarithmic

See Annex I, Section 6.8.2.2









Appendix 5

Electrical/electronic sub-assembly

Broadband reference limits

Frequency — megahertz — logarithmic

See Annex I, Section 6.5.2.1









Appendix 6

Electrical/electronic sub-assembly

Narrowband reference limits

Frequency — megahertz — logarithmic

See Annex I, Section 6.6.2.1









Appendix 7

Model for the EEC type-approval mark

The ESA bearing the above EEC type-approval mark is a device which has been approved in Germany (e1) under the base approval number 0148. The first two digits (02) indicate that the device conforms with the requirements of Directive 72/245/EEC, as amended by this Directive.

The figures used are only indicative.









ANNEX IIA

Information document No … pursuant to Annex I to Directive 70/156/EEC ( 8 ) relating to EEC type-approval of a vehicle with respect to electromagnetic compatibility (72/245/EEC), as last amended by Directive 95/…/EC

0. General

0.1. Make (trade name of manufacturer):

0.2. Type and general commercial description(s):

0.3. Means of identification of type, if marked on the vehicle (b):

0.3.1. Location of that marking:

0.4. Category of vehicle (c):

0.5. Name and address of manufacturer:

0.8. Address(es) of assembly plant(s):

1. General construction characteristics of the vehicle

1.1. Photograph(s) and/or drawing(s) of a representative vehicle:

1.6. Position and arrangement of the engine:

3. Power plant (q)

3.1. Manufacturer:

3.1.1. Manufacturer's engine code: (as marked on the engine, or other means of identification)

3.2.1.1. Working principle: positive ignition/compression ignition, four stroke/two stroke ( 9 )

3.2.1.2. Number and arrangement of cylinders:

3.2.1.8. Maximum net power (t) … kW at … min−1

3.2.4. Fuel feed

3.2.4.1. By carburettor(s): yes/no ( 10 )

3.2.4.1.3. Number fitted:

3.2.4.2. By fuel injection (compression ignition only): yes/no ( 11 )

3.2.4.2.1. System description:

3.2.4.3. By fuel injection (positive ignition only): yes/no ( 12 )

3.2.4.3.4. System description

3.2.5. Electrical system

3.2.5.1. Rated voltage: … V, positive/negative ground ( 13 )

3.2.5.2. Generator

3.2.5.2.1. Type

3.2.5.2.2. Nominal output: … VA

3.2.6. Ignition

3.2.6.2. Type(s):

3.2.6.3. Working principle:

3.3. Electric motor

3.3.1. Type (winding, excitation):

3.3.1.1. Maximum hourly output: … kW

4. Transmission (v)

4.2. Type (mechanical, hydraulic, electric, etc.)

4.2.1. A brief description of the electrical/electronic components (if any):

6. Suspension

6.2.2. A brief description of the electrical/electronic components (if any):

7. Steering

7.2.2.1. A brief description of the electrical/electronic components (if any):

7.2.6. Range and method of adjustment, if any, of this steering control:

8. Brakes

8.5. For vehicles with anti-lock systems, description of system operation (including any electronic parts), electric block diagram, hydraulic or pneumatic circuit plan:

9. Bodywork

9.1. Type of bodywork:

9.5. Windscreen and other windows:

9.5.2.3. A brief description of the electrical/electronic components (if any) of the window lifting mechanism:

9.6. Windscreen wiper(s):

9.6.1. Detailed technical description (including photographs or drawings):

9.8. Defrosting and demisting:

9.8.1. Detailed technical description (including photographs or drawings):

9.9. Rear-view mirrors (state for each mirror):

9.9.6. A brief description of the electronic components (if any) of the adjustment system:

9.10.3. Seats:

9.10.3.4. Characteristics: description and drawings of:

9.10.3.4.2. the adjustment system

9.10.3.4.3. the displacement and locking systems.

9.12. Safety belts and/or other restraint systems:

9.12.3. A brief description of the electrical/electronic components (if any):

9.18. Suppression of radio interference

9.18.1. Description and drawings/photographs of the shapes and constituent materials of the part of the body forming the engine compartment and the part of the passenger compartment nearest to it:

9.18.2. Drawings or photographs of the position of the metal components housed in the engine compartment (e.g. heating appliances, spare wheel, air filter, steering mechanism, etc.):

9.18.3. Table and drawing of radio interference control equipment:

9.18.4. Particulars of the nominal value of the direct current resistances, and in the case of resistive ignition cables, of their nominal resistance per metre

10. Lighting and light signalling devices

10.5. A brief description of electrical/electronic components other than lamps (if any)

12. Miscellaneous

12.2. Devices to prevent unauthorized use of the vehicle

12.2.3. A brief description of the electrical/electronic components (if any):









Appendix 1

Description of vehicle chosen to represent the type

Body style:

Left or right hand drive:

Wheelbase:

Component options:









Appendix 2

Relevant test report(s) supplied by the manufacturer or approved/recognized laboratories for the purpose of drawing up the type-approval certificate.









ANNEX IIB

Information document No … relating to EEC type-approval of an electric/electronic sub-assembly with respect to electromagnetic compatibility (72/245/EEC), as last amended by Directive 95/…/EC

0. General

0.1. Make (trade name of manufacturer):

0.2. Type and general commercial description(s):

0.5. Name and address of manufacturer:

0.7. In the case of components and separate technical units, location and method of affixing of the EEC approval mark:

0.8. Address(es) of assembly plant(s):

1. This ESA shall be approved as a component/STU ( 14 )

2. Any restrictions of use and conditions for fitting:









Appendix 1

Description of the ESA chosen to represent the type:









Appendix 2

Relevant test report(s) supplied by the manufacturer or approved/recognized laboratories for the purpose of drawing up the type-approval certificate.









ANNEX IIIA

MODEL

(maximum format: A4 (210 × 297 mm))

EEC TYPE-APPROVAL CERTIFICATE

Communication concerning the:

— extension of type-approval ( 16 )

— refusal of type-approval ( 17 )

— withdrawal of type-approval ( 18 )

of a type of vehicle/component/separate technical unit ( 19 ) with regard to Directive …/…/EC, as last amended by Directive …/…/EC.

Type approval number:

Reason for extension:

SECTION I

0.1. Make (trade name of manufacturer):

0.2. Type and general commercial description(s):

0.3. Means of identification of type, if marked on the vehicle/component/separate technical unit ( 20 ) ( 21 ):

0.3.1. Location of that marking:

0.4. Category of vehicle ( 22 ):

0.5. Name and address of manufacturer:

0.7. In the case of components and separate technical units, location and method of affixing of the EEC approval-mark:

0.8. Address(es) of assembly plant(s):

SECTION II

1. Additional information (where applicable): See Appendix

2. Technical service responsible for carrying out the tests:

3. Date of test report:

4. Number of test report:

5. Remarks (if any): See Appendix

6. Place:

7. Date:

8. Signature:

9. The index to the information package lodged with the approval authority, which may be obtained on request is attached









Appendix to EEC type-approval of a vehicle with regard to Directive 72/245/EEC, as last amended by Directive 95/…/EC

1. Additional information

1.1. Special devices for the purpose of Annex IV to this Directive (if applicable): (e.g. …)

1.2. Electrical system rated voltage: … V. positive/negative ground

1.3. Type of bodywork:

1.4. List of electronic systems installed in the tested vehicle(s) not limited to the items in the information document (see Appendix 1 to Annex II):

1.5. Approved/recognized laboratory (for the purpose of this Directive) responsible for carrying out the tests:

5. Remarks: (e.g. valid for both left-hand drive and right-hand drive vehicles)









ANNEX IIIB

MODEL

(maximum format: A4 (210 × 297 mm))

EEC TYPE-APPROVAL CERTIFICATE

Communication concerning the:

— extension of type-approval ( 24 )

— refusal of type-approval ( 25 )

— withdrawal of type-approval ( 26 )

of a type of vehicle/component/separate technical unit ( 27 ) with regard to Directive …/…/EC, as last amended by Directive …/…/EC.

Type-approval number:

Reason for extension:

SECTION I

0.1. Make (trade name of manufacturer):

0.2. Type and general commercial description(s):

0.3. Means of identification of type, if marked on the vehicle/component/separate technical unit ( 28 ) ( 29 ):

0.3.1. Location of that marking:

0.4. Category of vehicle ( 30 ):

0.5. Name and address of manufacturer:

0.7. In the case of components and separate technical units, location and method of affixing of the EEC approval-mark:

0.8. Address(es) of assembly plant(s):

SECTION II

1. Additional information (where applicable): See Appendix

2. Technical service responsible for carrying out the tests:

3. Date of test report:

4. Number of test report:

5. Remarks (if any): See Appendix

6. Place:

7. Date:

8. Signature:

9. The index to the information package lodged with the approval authority, which may be obtained on request is attached.









Appendix to EEC type-approval certificate No …

concerning the type-approval of an electric/electronic sub-assembly with regard to Directive 72/245/EEC, as last amended by Directive 95/…/EC

1. Additional information:

1.1. Electrical system rated voltage:

1.2. This ESA can be used on any vehicle type with the following restrictions:

1.2.1. Installation conditions, if any:

1.3. This ESA can only be used on the following vehicle types:

1.3.1. Installation conditions, if any:

1.4. the specific test method(s) used and the frequency ranges covered to determine immunity were: (please specify precise method used from Annex IX)

1.5. Approved/recognized laboratory (for the purpose of this Directive) responsible for carrying out the test.

5. Remarks:









ANNEX IV

METHOD OF MEASUREMENT OF RADIATED BROADBAND ELECTROMAGNETIC EMISSIONS FROM VEHICLES

1. General

1.1. The test method described in this Annex shall only be applied to vehicles.

1.2. Measuring apparatus The measuring equipment shall comply with the requirements of publication No 16-1 (93) of the International Special Committee on Radio Interference (CISPR). A quasi-peak detector shall be used for the measurement of braodband electromagnetic emissions in this Annex, or if a peak detector is used an appropriate correction factor shall be used depending on the spark pulse rate.

1.3. Test method This test is intended to measure the broadband emissions generated by spark ignition systems. Two alternative reference antenna distances are permissible: 10 or 3 m from the vehicle. In either case the requirements of paragraph 3 of this Annex shall be complied with.

2. Expression of results

The results of measurements shall be expressed in dB microvolt/m (microvol/m) for 120 kHz band width. If the actual band width B (expressed in kHz) of the measuring apparatus differs from 120 kHz, the readings taken in microvolts/m shall be converted to 120 kHz band width through multiplication by a factor 120/B.

3. Measuring location

3.1. The test site shall be a level, clear area free from electromagnetic reflecting surfaces within a circle of minimum radius 30 m measured from a point midway between the vehicle and the antenna (see Figure 1 of Appendix 1 to this Annex).

3.2. The measuring set, test hut, or vehicle in which the measurement set is located may be within the test site, but only in the permitted region shown in Figure 1 in Appendix 1 to this Annex. Other measuring antennae are allowed within the test area, at a minimum distance of 10 m both from receiving antenna and the vehicle under test, provided that it can be shown that the test results will not be affected.

3.3. Enclosed test facilities may be used if correlation can be shown between the enclosed test facility and an outdoor site. Enclosed test facilities do not need to meet the dimensional requirements of Figure 1 in Appendix 1 of this Annex other than the distance from the antenna to the vehicle and the height of the antenna. Neither do they need to have ambient emissions checked before or after the test as indicated in paragraph 3.4 of this Annex.

3.4. Ambient To ensure that there is no extraneous noise or signal of a magnitude sufficient to affect materially the measurement, measurements shall be taken before and after the main test. If the vehicle is present when ambient measurements are taken, it will be necessary to ensure that any emissions from the vehicle do not affect significantly the ambient measurements, for example by removing the vehicle from the test area, removing the ignition key, or disconnecting the battery. In both of the measurements, the extraneous noise or signal shall be at least 10 dB below the limits of interference given in paragraph 6.2.2.1 or 6.2.2.2 (as appropriate) of Annex I, except for intentional narrowband ambient transmissions.

4. Vehicle state during tests

4.1. Engine The engine shall be running at its normal operating temperature and the transmission shall be in neutral. If for practical reasons this cannot be achieved, alternative arrangements mutually agreed between the manufacturer and the test authorities may be made. Care shall be taken to ensure that the speed setting mechanism does not influence electromagnetic radiations. During each measurement, the engine shall be operated as follows:



Engine type Method of measurements Quasi peak Peak Spark ignition Engine speed Engine speed One cylinder 2 500 rpm ± 10 % 2 500 rpm ± 10 % More than one cylinder 1 500 rpm ± 10 % 1 500 rpm ± 10 %

4.2. Testing shall not be conducted while rain or other precipitation is falling on the vehicle or within 10 minutes after such precipitation has stopped.

5. Antenna type, position and orientation

5.1. Antenna type Any antenna may be used provided it can be normalized to the reference antenna. The method described in CISPR publication No 12, Edition 3, Appendix A, may be used to calibrate the antenna.

5.2. Height and distance of measurement

5.2.1. Height

5.2.1.1. 10 m test The phase centre of the antenna shall be 3,00 ± 0,05 m above the plane on which the vehicle rests.

5.2.1.2. 3 m test The phase centre of the antenna shall be 1,80 ± 0,05 m above the plane on which the vehicle rests.

5.2.1.3. No part of any antenna's receiving elements shall be closer than 0,25 m to the plane on which the vehicle rests.

5.2.2. Distance of measurement

5.2.2.1. 10 m test The horizontal distance from the tip or other appropriate point of the antenna defined during the normalization procedure described in paragraph 5.1 to this Annex to the outer body surface of the vehicle shall be 10,0 ± 0,2 m.

5.2.2.2. 3 m test The horizontal distance from the tip or other appropriate point of the antenna defined during the normalization procedure described in paragraph 5.1 to this Annex to the outer body surface of the vehicle shall be 3,00 ± 0,05 m.

5.2.2.3. If the test is carried out in a facility enclosed for radio frequency electromagnetic screening purposes, the antenna's receiving elements shall be no closer than 1,0 m to any radio absorbent material and no closer than 1,5 m to the wall of the enclosed facility. There must be no absorbent material between the receiving antenna and vehicle under test.

5.3. Antenna location relative to vehicle The antenna shall be located successively on the left and right-hand sides of the vehicle, with the antenna parallel to the plane of longitudinal symmetry of the vehicle and in line with the engine mid-point (see Figure 1 in Appendix 1 to this Annex).

5.4. Antenna position At each of the measuring points, readings shall be taken both with the antenna in a horizontal and in a vertical polarization (see Figure 2 in Appendix 1 to this Annex).

5.5. Readings The maximum of the four readings taken in accordance with paragraphs 5.3 and 5.4 at each spot frequency shall be taken as the characteristic reading at the frequency at which the measurements were made.

6. Frequencies

6.1. Measurements Measurements shall be made throughout the 30 to 1 000 MHz frequency range. To confirm that the vehicle meets the requirements of this Annex, the Testing Authority shall test at up to 13 frequencies in the range, e.g. 45, 65, 90, 120, 150, 190, 230, 280, 380, 450, 600, 750, 900 MHz. In the event that the limit is exceeded during the test, investigations shall be made to ensure that this is due to the vehicle and not to background radiation.

6.1.1. The limits apply throughout the frequency range 30 to 1 000 MHz.

6.1.2. Measurements can be performed with either quasi-peak or peak detectors. The limits given in Annex I, paragraphs 6.2 and 6.5 are for quasi-peak. If peak is used, add 38 dB for 1 MHz bandwith or subtract 22 dB for 1 kHz band width.

6.2. Tolerances



Spot frequency (MHz) Tolerance (MHz) 45, 65, 90, 120, 150, 190 and 230 ± 5 280, 380, 450, 600, 750 and 900 ± 20 The tolerances apply to frequencies quoted and are intended to avoid interference from transmissions operating on or near the nominal spot frequencies during the time of measurement.









Appendix 1

Figure 1

VEHICLE TEST AREA

Level clear area free from electromagnetic reflecting surfaces









Appendix 1

Figure 2

POSITION OF ANTENNA RELATIVE TO VEHICLE

Dipole antenna in position to measure vertical component of radiation

Dipole antenna in position to measure horizontal component of radiation









ANNEX V

METHOD OF MEASUREMENT OF RADIATED NARROWBAND ELECTROMAGNETIC EMISSIONS FROM VEHICLES

1. General

1.1. The test method described in this Annex shall only be applied to vehicles.

1.2. Measuring apparatus The measuring equipment shall comply with the requirements of publication No 16-1 (93), of the International Special Committee on Radio Interference (CISPR). An average detector or a peak detector shall be used for the measurement of radiated narrowband electromagnetic emissions in this Annex.

1.3. Test method

1.3.1. This test is intended to measure narrowband electromagnetic emissions such as might emanate from a microprocessor-based system or other narrowband source.

1.3.2. As an initial step the levels of emissions in the FM frequency band (88 to 108 MHz) shall be measured at the vehicle broadcast radio antenna with equipment as specified in paragraph 1.2. If the level specified in paragraph 6.3.2.4 of Annex I is not exceeded, then the vehicle shall be deemed to comply with the requirements of this Annex in respect of that frequency band and the full test shall not be carried out.

1.3.3. In the full test procedure two alternative antenna distances are permissible: 10 or 3 m from the vehicle. In either case the requirements of paragraph 3 of this Annex shall be complied with.

2. Expression of results

The results of measurements shall be expressed in dB microvolts/m (microvolts/m).

3. Measuring location

3.1. The test site shall be a level, clear area free from electromagnetic reflecting surfaces within a circle of minimum radius 30 m measured from a point midway between the vehicle and the antenna (see Figure 1 of Appendix 1 to Annex IV).

3.2. The measuring set, test hut, or vehicle in which the measurement set is located may be within the test site, but only in the permitted region shown in Figure 1 of Appendix 1 to Annex IV. Other measuring antennae are allowed within the test area, at a minimum distance of 10 m both from receiving antenna and the vehicle/STU under test, provided that it can be shown that the test results will not be affected.

3.3. Enclosed test facilities may be used if correlation can be shown between the enclosed test facility and an outdoor site. Enclosed test facilities do not need to meet the dimensional requirements of Figure 1 in Appendix 1 of Annex IV other than the distance from the antenna to the vehicle and the height of the antenna. Neither do they need to have ambient emissions checked before or after the test as indicated in paragraph 3.4 of this Annex.

3.4. Ambient To ensure that there is no extraneous noise or signal of a magnitude sufficient to affect materially the measurement, ambient measurements shall be taken before and after the main test. It will be necessary to ensure that any emissions from the vehicle do not affect significantly the ambient measurements, for example by removing the vehicle from the test area, removing the ignition key, or disconnecting the battery(ies). In both of the measurements, the extraneous noise or signal shall be at least 10 dB below the limits of interference given in paragraph 6.3.2.1 or 6.3.2.2 (as appropriate) of Annex I, except for intentional narrowband ambient transmissions.

4. Vehicle state during tests

4.1. The vehicle's electronic systems shall all be in normal operating mode with the vehicle stationary.

4.2. The ignition shall be switched on. The engine shall not be operating.

4.3. Measurements shall not be made while rain or other precipitation is falling on the vehicle or within 10 minutes after such precipitation has stopped.

5. Antenna type, position and orientation

5.1. Antenna type Any antenna may be used provided that it can be normalized to the reference antenna. The method described in the CISPR 12 publication, Edition 3, Appendix A, may be used to calibrate the antenna.

5.2. Height and distance of measurement

5.2.1. Height

5.2.1.1. 10 m test The phase centre of the antenna shall be 3,00 ± 0,05 m above the plane on which the vehicle rests.

5.2.1.2. 3 m test The phase centre of the antenna shall be 1,80 ± 0,05 m above the plane on which the vehicle rests.

5.2.1.3. No part of any antenna's receiving elements shall be closer than 0,25 m to the plane on which the vehicle rests.

5.2.2. Distance of measurement

5.2.2.1. 10 m test The horizontal distance from the tip or other appropriate point of the antenna defined during the normalization procedure described in paragraph 5.1 to this Annex to the outer body surface of the vehicle shall be 10,0 ± 0,2 m.

5.2.2.2. 3 m test The horizontal distance from the tip or other appropriate point of the antenna defined during the normalization procedure described in paragraph 5.1 to this Annex to the outer body surface of the vehicle shall be 3,00 ± 0,05 m.

5.2.2.3. If the test is carried out in a facility enclosed for radio frequency electromagnetic screening purposes, the antenna's receiving elements shall be no closer than 1,0 m to any radio absorbent material and no closer than 1,5 m to the wall of the enclosed facility. There must be no absorbent material between the receiving antenna and vehicle under test.

5.3. Antenna location relative to vehicle The antenna shall be located successively on the left and right-hand sides of the vehicle with the antenna parallel to the plane of longitudinal symmetry of the vehicle and in line with the engine mid-point (see Figure 2 in Appendix 1 to Annex IV).

5.4. Antenna position At each of the measuring points, readings shall be taken both with the antenna in a horizontal and in a vertical polarization (see Figure 2 in Appendix 1 to Annex IV).

5.5. Readings The maximum of the four readings taken in accordance with paragraphs 5.3 and 5.4 at each spot frequency shall be taken as the characteristic reading at the frequency at which the measurements are made.

6. Frequencies

6.1. Measurements Measurements shall be made throughout the 30 to 1 000 MHz frequency range. This range shall be divided into 13 bands. In each band one spot frequency may be tested to demonstrate that the required limits are satisfied. To confirm that the vehicle meets the requirements of this Annex, the testing authority shall test at one such point in each of the following 13 frequency bands: 30 to 50, 50 to 75, 75 to 100, 100 to 130, 130 to 165, 165 to 200, 200 to 250, 250 to 320, 320 to 400, 400 to 520, 520 to 660, 660 to 820, 820 to 1 000 MHz. In the event that the limit is exceeded during the test, investigations shall be made to ensure that this is due to the vehicle and not to background radiation.









ANNEX VI

METHOD OF TESTING FOR IMMUNITY OF VEHICLES TO ELECTROMAGNETIC RADIATION

1. General

1.1. The test method described in this Annex shall only be applied to vehicles.

1.2. Test method This test is intended to demonstrate the immunity to degradation in the direct control of the vehicle. The vehicle shall be subject to electromagnetic fields as described in this Annex. The vehicle shall be mnitored during the tests.

2. Expression of results

For the test described in this Annex, field strengths shall be expressed in volts/m.

3. Measuring location

The test facility shall be capable of generating the field strengths over the frequency ranges defined in this Annex. The test facility shall comply with (national) legal requirements regarding the emission of electromagnetic signals.

Care shall be taken so that the control and monitoring equipment shall not be affected by radiated fields in such a way as to invalidate the tests.

4. Vehicle state during tests

4.1. The vehicle shall be in an unladen condition except for necessary test equipment.

4.1.1. The engine shall normally turn the driving wheels at a steady speed of 50 km/h if there is no technical reason for a manufacturer to prefer a different speed. The vehicle shall be on an appropriately loaded dynamometer or alternatively supported on insulated axle stands with minimum ground clearance if no dynamometer is available. Where appropriate, transmission shafts may be disconnected (e.g. trucks).

4.1.2. Headlamps shall be on dipped beam.

4.1.3. Left or right direction indicator shall be operating.

4.1.4. All other systems which affect the driver's control of the vehicle shall be (on) as in normal operation of the vehicle.

4.1.5. The vehicle shall not be electrically connected to the test area and no connections shall be made to the vehicle from any equipment, except as required by paragraph 4.1.1 or 4.2. Tyre contact with the test area floor shall not be considered to be an electrical connection.

4.2. If there are vehicle electrical/electronic systems which form an integral part of the direct control of the vehicle, which will not operate under the conditions described in paragraph 4.1, it will be permissible for the manufacturer to provide a report or additional evidence to the testing authority that the vehicle electrical/electronic system meets the requirements of this Directive. Such evidence shall be retained in the type-approval documentation.

4.3. Only non-perturbing equipment shall be used while monitoring the vehicle. The vehicle exterior and the passenger compartment shall be monitored to determine whether the requirements of this Annex are met (e.g. by using (a) video camera(s)).

4.4. The vehicle shall normally face a fixed antenna. However, where the electronic control units and the associated wiring harness are predominantly in the rear of the vehicle, the test should normally be carried out with the vehicle facing away from the antenna. In the case of long vehicles (i.e. excluding cars and light vans), which have electronic control units and associated wiring harness predominantly towards the middle of the vehicle, a reference point (see paragraph 5.4 of this Annex) may be established based on either the right side surface or the left side surface of the vehicle. This reference point shall be at the midpoint of the vehicle's length or at one point along the side of the vehicle chosen by the manufacturer in conjunction with the competent authority after considering the distribution of electronic systems and the layout of any wiring harness. Such testing may only take place if the physical construction of the chamber permits. The antenna location must be noted in the test report.

5. Field generating device type, position and orientation

5.1. Field generating device type

5.1.1. The field generating device type(s) shall be chosen such that the desired field strength is achieved at the reference point (see paragraph 5.4 of this Annex) at the appropriate frequencies.

5.1.2. The field generating device(s) may be an antenna(s) or a transmission line system (TLS).

5.1.3. The construction and orientation of any field generating device shall be such that the generated field is polarized: from 20 to 1 000 MHz horizontally or vertically

5.2. Height and distance of measurement

5.2.1. Height

5.2.1.1. The phase centre of any antenna shall not be less than 1,5 m above the plane on which the vehicle rests or not less than 2,0 m above the plane on which the vehicle rests if the vehicle roof exceeds 3 m in heigh.

5.2.1.2. No part of any antenna's radiating elements shall be closer than 0,25 m to the plane on which the vehicle rests.

5.2.2. Distance of measurement

5.2.2.1. In-service conditions may be best approximated by placing the field generating device as far from the vehicle as practical. This distance will typically lie within the range 1 to 5 m.

5.2.2.2. If the test is carried out in an enclosed facility, the field generating device's radiating elements shall be no closer than 1,0 m to any radio absorbent material and no closer than 1,5 m to the wall of the enclosed facility. There shall be no absorbent material between the transmitting antenna and the vehicle under test.

5.3. Antenna location relative to vehicle

5.3.1. The field generating device's radiating elements shall not be closer than 0,5 m to the outer body surface of the vehicle.

5.3.2. The field generating device shall be positioned on the vehicle's centre line (plane of longitudinal symmetry).

5.3.3. No part of a TLS, with the exception of the plane on which the vehicle rests, shall be closer than 0,5 m to any part of the vehicle.

5.3.4. Any field generating device which is placed over the vehicle shall extend centrally over at least 75 % of the length of the vehicle.

5.4. Reference point

5.4.1. For the purposes of this Annex the reference point is the point at which the field strength shall be established and shall be defined as follows:

5.4.1.1. at least 2 m horizontally from the antenna phase centre or at least 1 m vertically from the radiating elements of a TLS,

5.4.1.2. on the vehicle's centre line (plane of longitudinal symmetry),

5.4.1.3. at a height of 1,0 ± 0,05 m above the plane on which the vehicle rests or 2,0 ± 0,05 m if the minimum height of the roof of any vehicle in the model range exceeds 3,0 m,

5.4.1.4. either: 1,0 ± 0,2 m inside the vehicle, measured from the point of intersection of the vehicle windscreen and bonnet (point C in Appendix 1 to this Annex), or 0,2 ± 0,2 m from the centre line of the foremost axle of the vehicle measured towards the centre of the vehicle (point D in Appendix 2 to this Annex), whichever results in a reference point closer to the antenna.

5.5. If it is decided to radiate the rear of the vehicle, the reference point shall be established as in paragraph 5.4. The vehicle shall then be installed facing away from the antenna and positioned as if it had been horizontally rotated 180° around its centre point, i.e. such that the distance from the antenna to the nearest part of the outer body of the vehicle remains the same. This is illustrated in Appendix 3 to this Annex.

6. Test requirements

6.1. Frequency range, dwell times, polarization The vehicle shall be exposed to electromagnetic radiation in the 20 to 1 000 MHz frequency range.

6.1.1. To confirm that the vehicle meets the requirements of this Annex, the vehicle shall be tested at up to 14 spot frequencies in the range, e.g.: 27, 45, 65, 90, 120, 150, 190, 230, 280, 380, 450, 600, 750 and 900 MHz. The response time of the equipment under test shall be considered and the dwell time shall be sufficient to allow the equipment under test to react under normal conditions. In any case, it shall not be less than two seconds.

6.1.2. One mode of polarization shall be used at each frequency — see paragraph 5.1.3.

6.1.3. All other test parameters shall be as defined in this Annex.

6.1.4. If a vehicle fails the test defined in paragraph 6.1.1 of this Annex, it must be verified as having failed under the relevant test conditions and not as a result of the generation of uncontrolled fields.

7. Generation of required field strength

7.1. Test methodology

7.1.1. The ‘substitution method’ shall be used to establish the test field conditions.

7.1.2. Calibration phase At each test frequency, a level of power shall be fed into the field generating device to produce the required field strength at the reference point (as defined in paragraph 5) in the test area with the vehicle absent, the level of forward power, or another parameter directly related to the forward power required to define the field, shall be measured and the results recorded. Test frequencies shall lie in the range 20 to 1 000 MHz. Calibration shall be made, starting at 20, in steps not greater than two per cent of the previous frequency finishing at 1 000 MHz. These results shall be used for type approval tests unless changes occur in the facilities or equipment which necessitate this procedure being repeated.

7.1.3. Test phase The vehicle shall then be introduced into the test facility and positioned in accordance with the requirements of paragraph 5. The required forward power defined in paragraph 7.1.2 at each frequency as defined in paragraph 6.1.1 shall then be applied to the field generating device.

7.1.4. Whatever parameter was chosen in paragraph 7.1.2 to define the field, the same parameter shall be used to establish the field strength during the test.

7.1.5. The field generating equipment and its layout employed during the test shall be to the same specification as that used during the operations performed in paragraph 7.1.2.

7.1.6. Field strength measuring device A suitable compact field strength measuring device shall be used to determine the field strength during the calibration phase of the substitution method.

7.1.7. During the calibration phase of the substitution method, the phase centre of the field strength measuring device shall be positioned at the reference point.

7.1.8. If a calibrated receiving antenna is used as the field strength measuring device, readings shall be obtained in three mutually orthogonal directions and the isotropic equivalent value of the readings shall be taken as the field strength.

7.1.9. To take account of different vehicle geometries, a number of antennae positions or reference points may need to be established for a given test facility.

7.2. Field strengh contour

7.2.1. During the calibration phase of the substitution method (prior to a vehicle being introduced into the test area), the field strength in at least 80 % of the calibration steps shall not be less than 50 % of the nominal field strength, at the following locations: (a) for all field generating devices, 0,5 ± 0,05 m either side of the reference point on a line passing through the reference point and at the same height as the reference point, and perpendicular to the vehicle plane of longitudinal symmetry; (b) in the case of a TGLS, 1,50 ± 0,05 m on a line passing through the reference point at the same height as the reference point and along the line of longitudinal symmetry.

7.3. Chamber resonance Notwithstanding the condition expressed in 7.2.1, tests shall not be performed at chamber reasonant frequencies.

7.4. Characteristics of the test signal to be generated.

7.4.1. Maximum envelope excursion The maximum envelope excursion of the test signal shall equal the maximum envelope excursion of an unmodulated sine wave whose rms value in volts/m is defined in paragraph 6.4.2 of Annex I (see Appendix 4 to this Annex).

7.4.2. Test signal wave form The test signal shall be a radio frequency sine wave, amplitude modulated by a 1 kHz sine wave at a modulation depth m of 0,8 ± 0,04.

7.4.3. Modulation depth The modulation depth m is defined as:









Appendix 1









Appendix 2









Appendix 3









Appendix 4

Characteristics of test signal to be generated









ANNEX VII

METHOD OF MEASUREMENT OF RADIATED BROADBAND ELECTROMAGNETIC EMISSIONS FROM ELECTRICAL/ELECTRONIC SUB-ASSEMBLIES

1. General

1.1. The test method described in this Annex may be applied to ESAs which may be subsequently fitted to vehicles which comply with Annex IV.

1.2. Measuring apparatus The measuring equipment shall comply with the requirements of publication No 16-1 (93) of the International Special Committee on Radio Interference (CISPR). A quasi-peak detector shall be used for the measurement of broadband electromagnetic emissions in this Annex, or if a peak detector is used an appropriate correction factor shall be used depending on the interference pulse rate.

1.3. Test method This test is intended to measure broadband electromagnetic emissions from ESAs.

2. Expression of results

The results of measurements shall be expressed in dB microvolts/m (microvolts/m), for 120 kHz band width. If the actual band width B (expressed in kHz) of the measuring apparatus differs from 120 kHz, the readings taken in microvolts/m shall be converted to 120 kHz band width through multiplication by a factor 120/B.

3. Measuring location

3.1. The test site shall comply with the requirements of publication No 16-1 (93) of the International Special Committee on Radio Interference (CISPR) (see Appendix 1 to this Annex).

3.2. The measuring set, test hut or vehicle in which the measurement set is located shall be outside the boundary shown in Appendix 1 to this Annex.

3.3. Enclosed test facilities may be used if correlation can be shown between the enclosed test facility and an approved outdoor site. Enclosed test facilities do not need to meet the dimensional requirements of Appendix 1 to this Annex other than the distance from the antenna to the ESA under test and the height of the antenna (see Figures 1 and 2 of Appendix 2 to this Annex).

3.4. Ambient To ensure that there is no extraneous noise or signal of a magnitude sufficient to affect materially the measurement, measurements hall be taken before and after the main test. In both of these measurements, the extraneous noise or signal shall be at least 10 dB below the limits of interference given in paragraph 6.5.2.1 of Annex I, except for international narrowband ambient transmissions.

4. ESA state during tests

4.1. The ESA under test shall be in normal operation mode.

4.2. Measurements shall not be made while rain of other precipitation is falling on the ESA under test or within 10 minutes after such rain or other precipitation has stopped.

4.3. Test arrangements

4.3.1. The ESA under test and its wiring harnesses shall be supported 50 ± 5 mm above a wooden or equivalent non-conducting table. However, if any part of the ESA under test is intended to be electrically bonded to a vehicle's metal bodywork, that part shall be placed on a ground plane and shall be electrically bonded to the ground plane. The ground plane shall be a metallic sheet with a minimum thickness of 0,5 mm. The minimum size of the ground plane depends on the size of the ESA under test but shall allow for the distribution of the ESA's wiring harness and components. The ground plane shall be connected to the protective conductor of the earthing system. The ground plane shall be situated at a height of 1,0 ± 0,1 m above the test facility floor and shall be parallel to it.

4.3.2. The ESA under test shall be arranged and connected according to its requirements. The power supply harness shall be positioned along, and within 100 mm of, the edge of the ground plane/table closest to the antenna.

4.3.3. The ESA under test shall be connected to the grounding system according to the manufacturer's installation specification, no additional grounding connections shall be permitted.

4.3.4. The minimum distance between the ESA under test and all other conductive structures, such as walls of a shielded ares (with the exception of the ground plane/table underneath the test object) must be 1,0 m.

4.4. Power shall be applied to the ESA under test via a 5 μH/50 Ω artificial network (AN) which shall be electrically bonded to the ground plane. The electrical supply voltage shall be maintained to ± 10 % of its nominal system operating voltage. Any ripple voltage shall be less than 1,5 % of the nominal system operating voltage measured at the AN monitoring port.

4.5. If the ESA under test consists of more than one unit, the interconnecting cables should ideally be the wiring harness as intended for use in the vehicle. If these are not available, the length between the electronic control unit and the AN shall be 1 500 ± 75 mm. All cables in the loom should be terminated as realistically as possible and preferably with real loads and actuators. If extraneous equipment is required for the correct operation of the ESA under test, compensation shall be made for the contribution it makes to the emissions measured.

5. Antenna type, position and orientation

5.1. Antenna type Any linearly polarized antenna may be used provided it can be normalized to the reference antenna.

5.2. Height and distance of measurement

5.2.1. Height The phase centre of the antenna shall be 150 ± 10 mm above ground plane.

5.2.2. Distance of measurement The horizontal distance from the phase centre of tip of the antenna as appropriate, to the edge of the ground plane shall be 1,00 ± 0,05 m. No part of the antenna shall be closer than 0,5 m to the ground plane. The antenna shall be placed parallel to a plane which is perpendicular to the ground plane and coincident with the edge of the ground plane along which the principal portion of the harness runs.

5.2.3. If the test is carried out in a facility enclosed for radio frequency electromagnetic screening purposes, the antenna's receiving elements shall be no closer than 0,5 m to any radio absorbent material and no closer than 1,5 m to the wall of the enclosed facility. There must be no absorbent material between the receiving antenna and the ESA under test.

5.3. Antenna orientation and polarization At the measuring point, readings shall be taken both with the antenna in a vertical and in a horizontal polarization.

5.4. Readings The maximum of the two readings taken (in accordance with paragraph 5.3) at each spot frequency shall be taken as the characteristic reading at the frequency at which the measurements were made.

6. Frequencies

6.1. Measurements Measurements shall be made throughout the 30 to 1 000 MHz frequency range. An ESA is considered as very likely to satisfy the required limits over the whole frequency range if it satisfies them at the following 13 frequencies in the range, e.g.: 45, 65, 90, 120, 150, 190, 230, 280, 380, 450, 600, 750 and 900 MHz. In the event that the limit is exceeded during the test, investigations shall be made to ensure that this is due to the ESA and not to background radiation.

6.1.1. The limits apply thorughout the frequency range 30 to 1 000 MHz.

6.1.2. Measurements can be performed with either quasi-peak or peak detectors. The limits given in paragraphs 6.2 and 6.5 are for quasi-peak. If peak is used, add 38 dB for 1 MHz band width or subtract 22 dB for 1 kHz band width.

6.2. Tolerances



Spot frequency (MHz) Tolerance (MHz) 45, 65, 90, 120, 150, 190 and 230 ± 5 280, 380, 450, 600, 750 and 900 ± 20 The tolerances apply to frequencies quoted and are intended to avoid interference from transmissions operating on or near the nominal spot frequencies during the time of measurement.









Appendix 1

Figure 1

Electrical/electronic sub-assembly test area boundary

Level clear area free from electromagnetic reflecting surfaces









Appendix 2

Figure 1

Radiated electromagnetic emissions from an ESA test layout (General plan view)









Appendix 2

Figure 2

Radiated electromagnetic emissions from an ESA view of test bench plane of longitudinal symmetry









ANNEX VIII

METHOD OF MEASUREMENT OF RADIATED NARROWBAND ELECTROMAGNETIC EMISSIONS FROM ELECTRICAL/ELECTRONIC SUB-ASSEMBLIES

1. General

1.1. The test method described in this Annex may be applied to ESAs.

1.2. Measuring apparatus The measuring equipment shall comply with the requirements of publication No 16-1 (93) of the International Special Committee on Radio Interference (CISFR). An average detector or a peak detector shall be used for the measurement of radiated narrowband electromagnetic emissions in this Annex.

1.3. Test method

1.3.1. This test is intended to measure the narrowband electromagnetic radiation such as might emanate from a microprocessor-based system.

1.3.2. As a short (2 to 3 minutes) initial step, choosing one antenna polarization, it is permitted to make sweeps of the frequency range identified in paragraph 6.1 of this Annex using a spectrum analyser to indicate the existence and/or whereabouts of peak emissions. This may assist in the choice of frequencies to be tested (see paragraph 6 of this Annex).

2. Expression of results

The results of measurements shall be expressed in dB microvolts/m (microvolts/m).

3. Measuring location

3.1. The test site shall comply with the requirements of publication No 16-1 (93) of the International Special Committee on Radio Interference (CISPR) (see Appendix 1 to Annex VII).

3.2. The measuring set, test hut or vehicle in which the measurement set is located shall be outside the boundary shown in Appendix 1 to Annex VII.

3.3. Enclosed test facilities may be used if correlation can be shown between the enclosed test facility and an outdoor site. Enclosed test facilities do not need to meet the dimensional requirements of Appendix 1 to Annex VII other than the distance from the antenna to the ESA under test and the height of the antenna (see Figures 1 and 2 of Appendix 2 to Annex VII).

3.4. Ambient To ensure that there is no extraneous noise or signal of a magnitude sufficient to affect materially the measurement, measurements shall be taken before and after the main test. In both of these measurements, the extraneous noise or signal shall be at least 10 dB below the limits of interference given in paragraph 6.6.2.1 of Annex I, except for intentional narrowband ambient transmissions.

4. ESA state during tests

4.1. The ESA under test shall be in normal operation mode.

4.2. Measurements shall not be made while rain or other precipitation is falling on the ESA under test or within 10 minutes after rain or other precipitation has stopped.

4.3. Test arrangements

4.3.1. The ESA under test and its wiring harnesses shall be supported 50 ± 5 mm above a wooden or equivalent non-conducting table. However, if any part of the ESA under test is intended to be electrically bonded to a vehicle's metal bodywork, that part shall be placed on a ground plane and shall be electrically bonded to the ground plane. The ground plane shall be a metallic sheet with a minimum thickness of 0,5 mm. The minimum size of the ground plane depends on the size of the ESA under test but shall allow for the distribution of the ESA's wiring harness and components. The ground plane shall be connected to the protective conductor of the earthing system. The ground plane shall be situated at a height of 1,0 ± 0,1 m above the test facility floor and shall be parallel to it.

4.3.2. The ESA under test shall be arranged and connected according to its requirements. The power supply harness shall be positioned along, and within 100 mm of, the edge of the ground plane/table closest to the antenna.

4.3.3. The ESA under test shall be connected to the grounding system according to the manufacturer's installation specification, no additional grounding connections shall be permitted.

4.3.4. The minimum distance between the ESA under test and all other conductive structures, such as walls of a shielded area (with the exception of the ground plane/table underneath the test object) must be 1,0 m.

4.4. Power shall be applied to the ESA under test via a 5 μH/50 Ω resistance artificial network (AN) which shall be electrically bonded to the ground plane. The electrical supply voltage shall be maintained to ± 10 % of its nominal system operating voltage. Any ripple voltage shall be less than 1,5 % of the nominal system operating voltage measured at the AN monitoring port.

4.5. If the ESA under test consists of more than one unit, the interconnecting cables should ideally be the wiring harness as intended for use in the vehicle. If these are not available, the length between the electronic control unit and the AN shall be 1 500 ± 75 mm. All cables in the loom should be terminated as realistically as possible and preferably with real loads and actuators. If extraneous equipment is required for the correct operation of the ESA under test, compensation shall be made for the contribution it makes to the emissions measured.

5. Antenna type, position and orientation

5.1. Antenna type Any linearly polarized antenna may be used provided it can be normalized to the reference antenna.

5.2. Height and distance of measurement

5.2.1. Height The phase centre of the antenna shall be 50 ± 10 mm above ground plane.

5.2.2. Distance of measurement The horizontal distance from the phase centre, or tip of the antenna as appropriate, to the edge of the ground plane shall be 1,00 ± 0,05 m. No part of the antenna shall be closer than 0,5 m to the ground plane. The antenna shall be placed parallel to a plane which is perpendicular to the ground plane and coincident with the edge of the ground plane along which the principal portion of the harness runs.

5.2.3. If the test is carried out in a facility enclosed for radio frequency electromagnetic screening purposes, the antenna's receiving elements shall be no closer than 0,5 m to any radio absorbent material and no closer than 1,5 m to the wall of the enclosed facility. There must be no absorbent material between the receiving antenna and vehicle electrical/electronic system under test.

5.3. Antenna orientation and polarization At the measuring point, readings shall be taken both with the antenna in a vertical and in a horizontal polarization.

5.4. Readings The maximum of the two readings taken (in accordance with paragraph 5.3) at each spot frequency shall be taken as the characteristic reading at the frequency at which the measurements were made.

6. Frequencies

6.1. Measurements Measurements shall be made throughout the 30 to 1 000 MHz frequency range. This range shall be divided into 13 bands. In each band one spot frequency may be tested to demonstrate that the required limits are satisfied. To confirm that the ESA under test meets the requirements of this Annex, the testing authority shall test one such point in each of the following 13 frequency bands: 30 to 50, 50 to 75, 75 to 100, 100 to 130, 130 to 165, 165 to 200, 200 to 250, 250 to 320, 320 to 400, 400 to 520, 520 to 660, 660 to 820, 820 to 1 000 MHz. In the event that the limit is exceeded during the test, investigations shall be made to ensure that this is due to the ESA under test and not to background radiation.

6.2. If during the initial step which may have been carried out as described in paragraph 1.3 of this Annex, the radiated narrowband emissions for any of the bands identified in paragraph 6.1 are at least 10 dB below the reference limit, then the ESA shall be deemed to comply with the requirements of this Annex in respect of that frequency band.









ANNEX IX

METHOD(S) OF TESTING FOR IMMUNITY OF ELECTRICAL/ELECTRONIC SUB-ASSEMBLIES TO ELECTROMAGNETIC RADIATION

1. General

1.1. The test method(s) described in this Annex may be applied to ESAs.

1.2. Test methods

1.2.1. ESAs may comply with the requirements of any combination of the following test methods at the manufacturer's discretion provided that this results in the full frequency range specified in paragraph 5.1 of this Annex being covered. — Stripline testing: see Appendix 1 to this Annex — Bulk current injection testing: see Appendix 2 to this Annex — TEM cell testing: see Appendix 3 to this Annex — Free field test: see Appendix 4 to this Annex

1.2.2. Due to radiation of electromagnetic fields during these tests, all testing shall be conducted in a shielded area (the TEM cell is a shielded area).

2. Expression of results

For the tests described in this Annex, field strengths shall be expressed in volts/m and injected current shall be expressed in milliamps.

3. Measuring location

3.1. The test facility shall be capable of generating the required test signal over the frequency ranges defined in this Annex. The test facility shall comply with (national) legal requirements regarding the emission of electromagnetic signals.

3.2. The measuring equipment shall be located outside the chamber.

4. State of ESA during tests

4.1. The ESA under test shall be in normal operation mode. It shall be arranged as defined in this Annex unless individual test methods dictate otherwise.

4.2. Power shall be applied to the ESA under test via an (5 μ H/50 Ω) artificial network (AN), which shall be electrically grounded. The electrical supply voltage shall be maintained to ± 10 % of its nominal system operating voltage. Any ripple voltage shall be less than 1,5 % of the nominal system operating voltage measured at the AN monitoring port.

4.3. Any extraneous equipment required to operate the ESA under test shall be in place during the calibration phase. No extraneous equipment shall be closer than 1 m from the reference point during calibration.

4.4. To ensure reproducible measurement results are obtained when tests and measurements are repeated, the test signal generating equipment and its layout shall be to the same specification as that used during each appropriate calibration phase (paragraphs 7.2, 7.3.2.3, 8.4, 9.2 and 10.2 of this Annex).

4.5. If the ESA under test consists of more than one unit, the interconnecting cables should ideally be the wiring harness as intended for use in the vehicle. If these are not available, the length between the electronic control unit and the AN shall be 1 500 ± 75 mm. All cables in the loom should be terminated as realistically as possible and preferably with real loads and actuators.

5. Frequency range, dwell times

5.1. Measurements shall be made in the 20 to 1 000 MHz frequency range.

5.2. To confirm that the ESA(s) meet(s) the requirements of this Annex, the tests shall be performed at up to 14 spot frequencies in the range, e.g.: 27, 45, 65, 90, 120, 150, 190, 230, 280, 380, 450, 600, 750 and 900 MHz The response time of the equipment under test shall be considered and the dwell time shall be sufficient to allow the equipment under test to react under normal conditions. In any case, it shall not be less than two seconds.

6. Characteristics of test signal to be generated

6.1. Maximum envelope excursion The maximuim envelope excursion of the test signal shall equal the maximum envelope excursion of an unmodulated sine wave whose rms value is defined in paragraph 6.4.2 of Annex I (see Appendix 4 of Annex VI).

6.2. Test signal wave form The test signal shall be a radio frequency sine wave, amplitude modulated by a 1 kHz sine wave at a modulation depth m of 0,8 ± 0,04.

6.3. Modulation depth The modulation depth m is defined as:

7. Stripline testing

7.1. Test method This test method consists of subjecting the wiring harness connecting the components in an ESA to specified field strengths.

7.2. Field strength measurement in the stripline At each desired test frequency a level of power shall be fed into the stripline to produce the required field strength in the test area with the ESA under test absent, this level of forward power, or another parameter directly related to the forward power required to define the field, shall be measured and the results recorded. These results shall be used for type approval tests unless changes occur in the facilities or equipment which necessitate this procedure being repeated. During this process, the position of the field probe head shall be under the active conductor, centred in longitudinal, vertical and transversal directions. The housing of the probe's electronics shall be as far away from the longitudinal stripline axis as possible.

7.3. Installation of the ESA under test

7.3.1. 150 mm stripline testing The test method allows the generation of homogeneous fields between an active conductor (the stripline 50 Ω impedance), and a ground plane (the conducting surface of the mounting table), between which part of the wiring harness may be inserted. The electronic controller(s) of the ESA under test shall be installed on the ground plane but outside the stripline with one of its edges parallel to the active conductor of the stripline. It shall be 200 ± 10 mm from a line on the ground plane directly under the edge of the active conductor. The distance between any edge of the active conductor and any peripheral device used for measurement shall be at least 200 mm. The wiring harness section of the ESA under test shall be placed in a horizontal attitude between the active conductor and the ground plane (see Figures 1 and 2 of Appendix 1 to this Annex).

7.3.1.1. The minimum length of the wiring harness, which shall include the power harness to the electronic control unit and shall be placed under the stripline, shall be 1,5 m unless the wiring harness in the vehicle is less than 1,5 m. In this case, the length of the wiring harness shall be that of the longest length of harness used in the vehicle installation. Any line branches occurring in this length shall be routed perpendicularly to the longitudinal axis of the line.

7.3.1.2. Alternatively, the fully extended length of the wiring harness, including the length of the longest of any branches, shall be 1,5 m.

7.3.2. 800 mm stripline testing

7.3.2.1. Test method The stripline consists of two parallel metallic plates separated by 800 mm. Equipment under test is positioned centrally between the plates and subjected to an electromagnetic field (see Figures 3 and 4 of Appendix 1 to this Annex). This method can test complete electronic systems including sensors and actuators as well as the controller and wiring loom. It is suitable for apparatus whose largest dimension is less than one-third of the plate separation.

7.3.2.2. Positioning of stripline The stripline shall be housed in a screened room (to prevent external emissions) and positioned 2 m away from walls and any metallic enclosure to prevent electromagnetic reflections. RF absorber material may be used to damp these reflections. The stripline shall be placed on non-conducting supports at least 0,4 m above the floor.

7.3.2.3. Calibration of the stripline A field measuring probe shall be positioned within the central one-third of the longitudinal, vertical and transverse dimensions of the space between the parallel plates with the system under test absent. The associated measuring equipment shall be sited outside the screen room. At each desired test frequency, a level of power shall be fed into the stripline to produce the required field strength at the antenna. This level of forward power, or another parameter directly related to the forward power required to define the field, shall be used for type approval tests unless changes occur in the facilities or equipment which necessitate this procedure being repeated.

7.3.2.4. Installation of the ESA under test The main control unit shall be positioned within the central one-third of the longitudinal, vertical and transverse dimensions of the space between the parallel plates. It shall be supported on a stand made from non-conducting material.

7.3.2.5. Main wiring loom and sensor/actuator cables The main wiring loom and any sensor/actuator cables shall rise vertically from the control unit to the top ground plate (this helps to maximise coupling with the electromagnetic field). Then they shall follow the underside of the plate to one of its free edges where they shall loop over and follow the top of the ground plate as far as the connections to the stripline feed. The cables shall then be routed to the associated equipment which shall be sited in an area outside the influence of the electromagnetic field, e.g.: on the floor of the screened room 1 m longitudinally away from the stripline.

8. Free field ESA immunity test

8.1. Test method This test method allows the testing of vehicle electrical/electronic systems by exposing an ESA to electromagnetic radiation generated by an antenna.

8.2. Test bench description The test shall be performed inside a semi-anechoic chamber on a bench top.

8.2.1. Ground plane

8.2.1.1. For free field immunity testing, the ESA under test and its wiring harnesses shall be supported 50 ± 5 mm above a wooden or equivalent non-conducting table. However, if any part of the ESA under test is intended to be electrically bonded to a vehicle's metal bodywork, that part shall be placed on a ground plane and shall be electrically bonded to the ground plane. The ground plane shall be a metallic sheet with a minimum thickness of 0,5 mm. The minimum size of the ground plane depends on the size of the ESA under test but shall allow for the distribution of the ESA's wiring harness and components. The ground plane shall be connected to the protective conductor of the earthing system. The ground plane shall be situated at a height of 1,0 ± 0,1 m above the test facility floor and shall be parallel to it.

8.2.1.2. The ESA under test shall be arranged and connected according to its requirements. The power supply harness shall be positioned along, and within 100 mm of, the edge of the ground plane/table closest to the antenna.

8.2.1.3. The ESA under test shall be connected to the grounding system according to the manufacturer's installation specification, no additional grounding connections shall be permitted.

8.2.1.4. The minimum distance between the ESA under test and all other conductive structures, such as walls of a shielded area (with the exception of the ground plane/table underneath the test object) must be 1,0 m.

8.2.1.5. The dimension of any ground plane shall be 2,25 square meter or larger in area with the smaller side no less than 750 mm. The ground plane shall be bonded to the chamber with bonding straps such that the DC bonding resistance shall not exceed 2,5 milliohms.

8.2.2. Installation of ESA under test For large equipment mounted on a metal test stand, the test stand shall be considered a part of the ground plane for testing purposes and shall be bonded accordingly. The faces of the test sample shall be located at a minimum of 200 mm from the edge of the ground plane. All leads and cables shall be a minimum of 100 mm from the edge of the ground plane and the distance to the ground plane (from the lowest point of the harness) shall be 50 ± 5 mm above the ground plane. Power shall be applied to the ESA under test via an (5 μ H/50 Ω) artificial network (AN).

8.3. Field generating device type, position and orientation

8.3.1. Field generating device type

8.3.1.1. The field generating device type(s) shall be chosen such that the desired field strength is achieved at the reference point (see paragraph 8.3.4 of this Annex) at the appropriate frequencies.

8.3.1.2. The field generating device(s) may be (an) antenna(s) or a plate antenna.

8.3.1.3. The construction and orientation of any field generating device shall be such that the generated field is polarised: from 20 to 1 000 MHz horizontally or vertically.

8.3.2. Height and distance of measurement

8.3.2.1. Height The phase centre of any antenna shall be 150 ± 10 mm above the ground plane on which the ESA under test rests. No parts of any antenna's radiating elements shall be closer than 250 mm to the floor of the facility.

8.3.2.2. Distance of measurement

8.3.2.2.1. In-service conditions may best be approximated by placing the field generating device as far from the ESA as practical. This distance will typically lie within the range 1 to 5 m.

8.3.2.2.2. If the test is carried out in an enclosed facility, the field generating device's radiating elements shall be no closer than 0,5 m to any radio absorbent material and no closer than 1,5 m to the wall of the facility. There shall be no absorbent material interposed between the transmitting antenna and the ESA under test.

8.3.3. Antenna location relative to ESA under test

8.3.3.1. The field generating device's radiating elements shall not be closer than 0,5 m to the edge of the ground plane.

8.3.3.2. The phase centre of the field generating device shall be on a plane which: (a) is perpendicular to the ground plane; (b) bisects the edge of the ground plane and the midpoint of the principal portion of the wiring harness; and (c) is perpendicular to the edge of the ground plane and the principal portion of the wiring harness. The field generating device shall be placed parallel to this plane (see Figures 1 and 2 of Appendix 4 to this Annex).

8.3.3.3. Any field generating device which is placed over the ground plane or ESA under test shall extend over the ESA under test.

8.3.4. Reference point For the purpose of this Annex the reference point is the point at which the field strength shall be established and shall be defined as follows:

8.3.4.1. at least 1 m horizontally from the antenna phase centre or at least 1 m vertically from the radiating elements of a plate antenna;

8.3.4.2. on a plane which: (a) is perpendicular to the ground plane; (b) is perpendicular to the edge of the ground plane along which the principal portion of the wiring harness runs; and (c) bisects the edge of the ground plane and the midpoint of the principal portion of the wiring harness; (d) coincident with the midpoint of the principal portion of the harness which runs along the edge of the ground plane closest to the antenna;

8.3.4.3. 150 ± 10 mm above the ground plane.

8.4. Generation of required field strength: test methodology

8.4.1. the ‘substitution method’ shall be used to establish the test field conditions.

8.4.2. Substitution method At each desired test frequency, a level of power shall be fed into the field generating device to produce the required field strength at the reference point (as defined in paragraph 8.3.4 in the test area with the ESA under test absent), this level of forward power, or another parameter directly related to the forward power required to define the field, shall be measured and the results recorded. These results shall be used for type approval tests unless changes occur in the facilities or equipment which necessitates this procedure being repeated.

8.4.3. Extraneous equipment must be a minimum of 1 m from the reference point during calibration.

8.4.4. Field strength measuring device A suitable compact field strength measuring device shall be used to determine the field strength during the calibration phase of the substitution method.

8.4.5. The phase centre of the field strength measuring device shall be positioned at the reference point.

8.4.6. The ESA under test which may include an additional ground plane shall then be introduced into the test facility and positioned in accordance with the requirements of paragraph 8.3. If a second ground plane is used, then it shall be within 5 mm of the bench ground plane and electrically bounded to it. The required forward power defined in paragraph 8.4.2 at each frequency as defined in paragraph 5 shall then be applied to the field generating device.

8.4.7. Whatever parameter was chosen in paragraph 8.4.2 to define the field, the same parameter shall be used to determine the field strength during the test.

8.5. Field strength contour

8.5.1. During the calibration phase of the substitution method (prior to an ESA under test being introduced into the test area), the field strength shall not be less than 50 % of the nominal field strength 0,5 ± 0,05 m either side of the reference point on a line parallel to the edge of the ground plane nearest to the antenna and passing through the reference point.

9. TEM cell testing

9.1. Test method The TEM (transverse electromagnetic mode) cell generates homogeneous fields between the internal conductor (septum) and housing (ground plane). It is used for testing ESAs (see Figure 1 of Appendix 3 to this Annex)).

9.2. Field strength measurement in a TEM cell

9.2.1. The electric field in the TEM cell shall be determined by using the equation: E = Electric field (volts/metre) P = Power flowing into cell (W) Z = Impedance of cell (50 Ω) d = Separation distance (metres) between the upper wall and the plate (septum).

9.2.2. Alternatively an appropriate field strength sensor shall be placed in the upper half of the TEM cell. In this part of the TEM cell the electronic control unit(s) has only a small influence on the test field. The output of this sensor shall determine the field strength.

9.3. Dimensions of TEM cell In order to maintain a homogeneous field in the TEM cell and to obtain repeatable measurement results, the tes