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Indian Standard IS International Electromechanical Commission IEC | Electrical4u
Home Electrical Basic Indian Standard IS International Electromechanical Commission IEC
Indian Standard Units and International Electromechanical Commission IEC
List of applicable Electrical Indian Standards (IS):
IS – 732 – Code of practice for electrical wiring installations ( System voltage not extending 650 volts )
IS – 900 – Code of practice for installation and maintenance of Induction Motors
IS – 1271- Classification of insulting materials for electrical machinery and apparatus in relation to their thermal stability in service
IS – 1646 – Code of practice for fire safety of buildings (general) Electrical Installations
IS – 1866 – Code of practice for maintenance of insulating oil.
IS – 1882 – Code of practice for outdoor installation of public address systems.
IS – 1886- Code of practice for installation and maintenance of Transformers
IS – 1913- General and safety requirements of electric lighting fittings
IS – 2032- Graphical symbols used in electric technology.
IS – 2165- Guide for insulation coordination
IS – 2274- Code of practice for electrical wiring installations (System voltage exceeding 658 volts)
IS – 2309- Code of practice for the protection of buildings and Allied structures against lightning.
IS – 3034 – Code of practice for fire safety of industrial buildings – Electrical generating and distributing stations.
IS – 3043 – Code of practice for earthing
IS-3072 – Part -1 Code of practice for installation and maintenance of switchgear (System voltage not exceeding 1000 volts)
IS – 3106 – Code of practice for selection, installation and maintenance of fuses (voltage not exceeding 650 volts)
IS – 3638 – Application guide for gas-operated relays.
IS – 3646 – Code of practice for interior illumination.
IS – 3716 – Application guide for insulation coordination – Equipment located in hazardous situations.
IS – 3842 – Application guide for electrical relays for AC system.
IS – 4004 – Application guide for non-linear resisted type lightning arrestors for AC system
IS – 4146 – Application guide for voltage transformers.
IS – 4201- Application guide for current transformers.
IS – 5571- Guide for selection of electrical equipment in hazardous area.
IS – 5572 – Classification of hazardous areas for electrical installations.
IS – 5780 – Intrinsically safe electrical apparatus and circuits.
IS – 5908- Method of measurement of electrical installations in buildings.
IS – 375 – Marking and arrangement for switchgear bus-bars, main connections and auxiliary winding.
IS – 694 – Part 1 PVC insulated cables ( for voltages up to 100v) with copper conductors.
IS – 1248 – Direct acting electrical indicating instruments.
IS – 2147 – Degrees of protection provided for enclosures for low voltage switchgear and control gear.
IS – 2208 – HRC cartridge fuse links up to 650 V.
IS – 2705 – Part I, II & III – Current transformers.
IS – 3156 – Part I, II & III – Voltage transformers.
IS – 3202- Code of practice for climate proofing of electrical equipment.
IS – 3231 – Electrical relays of power system protection.
IS – 4047- Heavy duty air break switches and composite units of air-break switches and fuses for voltages not exceeding 1000 volts.
IS – 4237 – General requirements for switchgear and control gear for voltages not exceeding 1000V.
IS – 5987 – Code of practice for selection of switches (voltage not exceeding 1000V).
(b) 6.6 KV
IS – 335 – Insulating oil for transformers and switchgear.
IS – 2516 –Part 1 – Sec.2 Alternating current circuit breakers – Requirements and tests for voltage ranges 1000 to 11000 volts.
IS – 3427 – Metal enclosed switchgear and control gear for voltages above 1000 V but not exceeding 11000 V.
(c) 415 Volts :
IS – 722 – AC electricity meters.
IS – 1951- PVC sleeving for electrical purposes.
IS – 2516 – Part 1- sec.1
Part II/Sec.2- AC circuit breakers – requirements and tests for voltages not exceeding 1000 V.
IS – 2419 – Dimensions of electrical indicating instruments.
BS – 4752 – Circuit breakers of rated voltage up to and including 1000 volts and 1200 volts dc.
BS – 6231 – PVC insulated cables for switchgear wiring.
IEC – 157 – Low voltage distribution switchgear circuit breakers.
(d) M.C.C. :
IS – 1554 -Part I PVC insulated (heavy duty) electric cables for working voltages up to and including 1100 volts.
IS – 1822 – AC motor starters of voltage not exceeding 1000 volts.
IS – 2959 – AC contactors of voltage not exceeding 1000 V.
IS – 3961-Part II Recommended current ratings for PVC insulated and PVC sheathed cables.
IS – 5124 – Code of practice for installation and maintenance of AC induction motor starters (voltage not exceeding 1000V).
(e) Invertors:
IS – 391 – Mains transformers for electronic equipment.
IS – 2026 – Power transformers.
IS – 2099 – High voltage porcelain bushings.
IS – 3070 – Lightning arrestors for AC systems.
IS – 3637 – Gas operated relays.
IS – 3639 – Fittings and accessories for power transformers
4. Motors:
IS – 325 – Three phase induction motors.
IS – 4691- Degrees of protection provided by enclosures for rotating electrical machinery.
IS – 4722 – Rotating electrical machines
IS – 1652 – Stationery cells and batteries, lead-acid type (with plate positive plates).
BS – 440 – Stationery batteries
IS – 1554 -Part I & II PVC insulated (heavy duty) electric cables for working voltages up to and including 1100 volts and for up to 33 KV.
IS – 1753 – Aluminium conductors for insulated cables.
IS – 3961 – Part II – Recommended current ratings for cables.
IS – 3975 – Mild steel wires, strips and tapes for armouring cables.
IS – 5819 – Recommended short-circuit ratings of high voltage cables.
IS – 5831 – PVC insulation and sheaths of electric cables
7. Alternators :
IS – 7132 – 1973 Guide for testing synchronous machines
IS – 5422 – 1996 Turbine type generators
IS – 7306 – 1974 Methods for determining synchronous machine quantities from tests.
International Electromechanical Commission IEC:
S.No IEC Numbers Number Mention For
1 IEC 60038 IEC standard voltages
2 IEC 60051 series Direct acting indicating analogue electrical measuring instruments and their accessories
3 IEC 60071-1 Insulation co-ordination – Definitions, principles and rules
4 IEC 60076-1 Power transformers – General
5 IEC 60076-2 Power transformers – Temperature rise for liquid immersed transformers
6 IEC 60076-3 Power transformers – Insulation levels, dielectric tests and external clearances in air
7 IEC 60076-5 Power transformers – Ability to withstand short-circuit
8 IEC 60076-7 Power transformers – Loading guide for oil-immersed power transformers
9 IEC 60076-10 Power transformers – Determination of sound levels
10 IEC 60076-11 Power transformers – Dry-type transformers
11 IEC 60076-12 Power transformers – Loading guide for Dry-type power transformers
12 IEC 60146-1-1 Semiconductor converters – General requirements and line commutated converters – Specifications of basic requirements
13 IEC 60255-1 Measuring relays and protection equipment – Common requirements
14 IEC 60269-1 Low-voltage fuses – General requirements
15 IEC 60269-2 Low-voltage fuses – Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) – Examples of standardized systems of fuses A to K
16 IEC 60282-1 High-voltage fuses – Current-limiting fuses
17 IEC 60287-1-1 Electric cables – Calculation of the current rating – Current rating equations (100% load factor) and calculation of losses – General
18 IEC 60364-1 Low-voltage electrical installations – Fundamental principles, assessment of general characteristics, definitions
19 IEC 60364-4-41 Low-voltage electrical installations – Protection for safety – Protection against electric shock
20 IEC 60364-4-42 Low-voltage electrical installations – Protection for safety – Protection against thermal effects
21 IEC 60364-4-43 Low-voltage electrical installations – Protection for safety – Protection against overcurrent
22 IEC 60364-4-44 Low-voltage electrical installations – Protection for safety – Protection against voltage disturbances and electromagnetic disturbances
23 IEC 60364-5-51 Low-voltage electrical installations – Selection and erection of electrical equipment – Common rules
24 IEC 60364-5-52 Low-voltage electrical installations – Selection and erection of electrical equipment – Wiring systems
25 IEC 60364-5-53 Low-voltage electrical installations – Selection and erection of electrical equipment – Isolation, switching and control
26 IEC 60364-5-54 Low-voltage electrical installations – Selection and erection of electrical equipment – Earthing arrangements and protective conductors
27 IEC 60364-5-55 Low-voltage electrical installations – Selection and erection of electrical equipment – Other equipment
28 IEC 60364-6 Low-voltage electrical installations – Verification
29 IEC 60364-7-701 Low-voltage electrical installations – Requirements for special installations or locations – Locations containing a bath or shower
30 IEC 60364-7-702 Low-voltage electrical installations – Requirements for special installations or locations – Swimming pools and fountains
31 IEC 60364-7-703 Low-voltage electrical installations – Requirements for special installations or locations – Rooms and cabins containing sauna heaters
32 IEC 60364-7-704 Low-voltage electrical installations – Requirements for special installations or locations – Construction and demolition site installations
33 IEC 60364-7-705 Low-voltage electrical installations – Requirements for special installations or locations – Agricultural and horticultural premises
34 IEC 60364-7-706 Low-voltage electrical installations – Requirements for special installations or locations – Conducting locations with restrictive movement
35 IEC 60364-7-708 Low-voltage electrical installations – Requirements for special installations or locations – Caravan parks, camping parks and similar locations
36 IEC 60364-7-709 Low-voltage electrical installations – Requirements for special installations or locations – Marinas and similar locations
37 IEC 60364-7-710 Low-voltage electrical installations – Requirements for special installations or locations – Medical locations
38 IEC 60364-7-711 Low-voltage electrical installations – Requirements for special installations or locations – Exhibitions, shows and stands
39 IEC 60364-7-712 Low-voltage electrical installations – Requirements for special installations or locations – Solar photovoltaic (PV) power supply systems
40 IEC 60364-7-713 Low-voltage electrical installations – Requirements for special installations or locations – Furniture
41 IEC 60364-7-714 Low-voltage electrical installations – Requirements for special installations or locations – External lighting installations
42 IEC 60364-7-715 Low-voltage electrical installations – Requirements for special installations or locations –
43 Extra-low-voltage lighting installations
44 IEC 60364-7-717 Low-voltage electrical installations – Requirements for special installations or locations –
45 Mobile or transportable units
46 IEC 60364-7-718 Low-voltage electrical installations – Requirements for special installations or locations – Communal facilities and workplaces
47 IEC 60364-7-721 Low-voltage electrical installations – Requirements for special installations or locations – Electrical installations in caravans and motor caravans
48 IEC 60364-7-729 Low-voltage electrical installations – Requirements for special installations or locations – Operating or maintenance gangways
49 IEC 60364-7-740 Low-voltage electrical installations – Requirements for special installations or locations – Temporary electrical installations for structures, amusement devices and booths at fairgrounds, amusement parks and circuses
50 IEC 60364-7-753 Low-voltage electrical installations – Requirements for special installations or locations – Heating cables and embedded heating systems
51 IEC60364-8-1 Low-voltage electrical installations – Energy efficiency
52 IEC 60445 Basic and safety principles for man-machine interface, marking and identification – Identification of equipment terminals, conductors terminations and conductors
53 IEC 60479-1 Effects of current on human beings and livestock – General aspects
54 IEC 60479-2 Effects of current on human beings and livestock – Special aspects
55 IEC 60479-3 Effects of current on human beings and livestock – Effects of currents passing through the body of livestock
56 IEC 60529 Degrees of protection provided by enclosures (IP code)
57 IEC 60644 Specification for high-voltage fuse-links for motor circuit applications
58 IEC 60664 Insulation coordination for equipment within low-voltage systems – all parts
59 IEC 60715 Dimensions of low-voltage switchgear and controlgear. Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations.
60 IEC 60724 Short-circuit temperature limits of electric cables with rated voltages of 1 kV (Um = 1.2 kV) and 3 kV (Um = 3.6 kV)
61 IEC 60755 General requirements for residual current operated protective devices
62 IEC 60787 Application guide for the selection of high-voltage current-limiting fuses-link for transformer circuit
63 IEC 60831-1 Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V – Part 1: General – Performance, testing and rating – Safety requirements – Guide for installation and operation
64 IEC 60831-2 Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V – Part 2: Ageing test, self-healing test and destruction test
65 IEC 60947-1 Low-voltage switchgear and controlgear – General rules
66 IEC 60947-2 Low-voltage switchgear and controlgear – Circuit-breakers
67 IEC 60947-3 Low-voltage switchgear and controlgear – Switches, disconnectors, switch-disconnectors and fuse-combination units
68 IEC 60947-4-1 Low-voltage switchgear and controlgear – Contactors and motor-starters – Electromechanical contactors and motor-starters
69 IEC 60947-6-1 Low-voltage switchgear and controlgear – Multiple function equipment – Transfer switching equipment
70 IEC 61000 series Electromagnetic compatibility (EMC)
71 IEC 61140 Protection against electric shocks – common aspects for installation and equipment
72 IEC 61201 Use of conventional touch voltage limits – Application guide
73 IEC/TR 61439-0 Low-voltage switchgear and controlgear assemblies – Guidance to specifying assemblies
74 IEC 61439-1 Low-voltage switchgear and controlgear assemblies – general rules
75 IEC 61439-2 Low-voltage switchgear and controlgear assemblies – power switchgear and controlgear assemblies
76 IEC 61439-3 Low-voltage switchgear and controlgear assemblies – distribution boards intended to be operated by ordinary persons (DBO)
77 IEC 61439-4 Low-voltage switchgear and controlgear assemblies – Particular requirements for assemblies for construction sites (ACS)
78 IEC 61439-5 Low-voltage switchgear and controlgear assemblies – Assemblies for power distribution in public networks
79 IEC 61439-6 Low-voltage switchgear and controlgear assemblies – Busbar trunking systems (busways)
80 IEC 61557-1 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – General requirements
81 IEC 61557-8 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Insulation monitoring devices for IT systems
82 IEC 61557-9 Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Equipment for insulation fault location in IT systems
83 IEC 61557-12 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Performance measuring and monitoring devices (PMD)
84 IEC 61558-2-6 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V – Particular requirements and test for safety isolating transformers and power supply units incorporating isolating transformers
85 IEC 61643-11 Low-voltage surge protective devices – Surge protective devices connected to low-voltage power systems – Requirements and test methods
86 IEC 61643-12 Low-voltage surge protective devices – Surge protective devices connected to low-voltage power distribution systems – Selection and application principles
87 IEC 61643-21 Low voltage surge protective devices – Surge protective devices connected to telecommunications and signalling networks – Performance requirements and testing methods
88 IEC 61643-22 Low-voltage surge protective devices – Surge protective devices connected to telecommunications and signalling networks – Selection and application principles
89 IEC 61921 Power capacitors – Low-voltage power factor correction banks
90 IEC 61936-1 Power installations exceeding 1 kV a.c. – Part 1: Common rules
91 IEC 62271-1 High-voltage switchgear and controlgear – Common specifications
92 IEC 62271-100 High-voltage switchgear and controlgear – Alternating-current circuit-breakers
93 IEC 62271-101 High-voltage switchgear and controlgear – Synthetic testing
94 IEC 62271-102 High-voltage switchgear and controlgear – Alternating current disconnectors and earthing switches
95 IEC 62271-103 High-voltage switchgear and controlgear – Switches for rated voltages above 1 kV up to and including 52 kV
96 IEC 62271-105 High-voltage switchgear and controlgear – Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV
97 IEC 62271-200 High-voltage switchgear and controlgear – Alternating current metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
98 IEC 62271-202 High-voltage switchgear and controlgear – High-voltage/low voltage prefabricated substations
99 IEC 62305-1 Protection against lightning – Part 1: General principles
100 IEC 62305-2 Protection against lightning – Part 2: Risk management
101 IEC 62305-3 Protection against lightning – Part 3: Physical damage to structures and life hazard
102 IEC 62305-4 Protection against lightning – Part 4: Electrical and electronic systems within structures
103 IEC 62586-2 Power quality measurement in power supply systems – Part 2: Functional tests and uncertainty requirements
104 IEC TS 62749 Assessment of power quality – Characteristics of electricity supplied by public networks
Indian Standard IS
International Electromechanical Commission IEC
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