List of IS/IEC Standards
Sl. IS / Year / Description of Standard Remarks
No. IEC No Rev.
No
A. Transformer
1. IS: 2026, Part-1 Power transformers: Part 1 general
2. IS: 2026, Part-2 Power transformers: Part 2 temperature
3. IS: 2026, Part-3 Power transformers: Part 3 insulation levels,
dielectric tests and external clearances in air
4. IS: 2026, Part-4 Specification for power transformers: Part 4
terminal markings, tapings and connections
5. IS: 2026, Part-5 Power transformers: Part 5 ability to with stand
short circuit
6. IS: 2026, Part-6 Power transformers: Part 6 reactors
7. IS: 2026, Part-7 Power transformers: Part 7 loading guide for oil -
Immersed power transformers
8. IS: 2026, Part-8 Power transformers: Part 8 application guide
9. IS: 2026, Part-10 Power transformers: Part 10 determination of
sound levels
10. IS: 2026, Part-10, Power Transformers Part 10 Determination of
Sec-1 Sound Levels Section 1 Application guide
11. IS: 2026, Part-11 Power Transformers Part 11 Dry-Type
Transformers
12. IS: 2026, Part-12 Power transformers: Part 12 loading guide for dry
- Type power transformers
13. IS: 2026, Part-14 Power transformers: Part 14 liquid - Immersed
power transformers using high - Temperature
insulation materials
14. IS: 2026, Part-15 Power transformers: Part 15 gas - Filled power
transformers
15. IS 2026 (Part 16) : Power transformers: Part 16 transformers for
2023 wind turbine applications
16. IS 2026 (Part 18) : Power transformers: Part 18 measurement of
2018 frequency response
17. IS 2026 (Part 19) : Power Transformers Part 19 Rules for the
2018 Determination of Uncertainties in the
Measurement of the Losses on Power
Transformers and Reactors
18. IS 2026 (Part 21) : Power transformers: Part 21 standard
2018 requirements, terminology and test code for step -
Voltage regulators
19.
20.
21. IS:11171 Dry Type Power Transformer
22. IS 1180 (Part 1) : Outdoor Type Oil Immersed Distribution
2014 Reviewed In Transformers Upto and Including 2500 kVA,
: 2019 (Active) 33kV - Specification Part 1 Mineral Oil Immersed
(Fourth Revision)
23. IS 1180 (Part 3) : Outdoor/Indoor Type Liquid Immersed
2021 (Active) Distribution Transformers Up to and Including 2
500 kVA, 33 kV — Specification Part 3
Natural/Synthetic Organic Ester Liquid Immersed
24.
25. IS: 10028 2021 Code of practice for selection, installation and
Part 1 selection maintenance of Transformer Part 1 selection
26. IS: 10028 2021 Code of practice for selection, installation and
Part 2 Installation maintenance of transformers: Part 2 Installation
27. IS: 10028 Part 3 2021 Code of practice for selection, installation and
Maintenance I maintenance of transformers: Part 3
Maintenance
28. IS:1886 Code of practice for installation and maintenance
withdrawn of transformers.
29.
Ring Main Units / Switches
30. IS:13118, IS:3427,
IEC:60694. IEC:60298
31. IS:9920, IEC:60265
32.
33.
34.
35.
36.
37.
38.
39. 1956 Indian Electricity Rules
40. 1910 Indian Electricity Act
