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IS 3156

IS 3156 — Voltage transformers: Part 3 Protective voltage transformers

IS 3156 is an Indian Standard titled Voltage transformers: Part 3 Protective voltage transformers, classified under Electrical Switchgear and Other Electrical Products/Accessories. Certification is voluntary.

IS Number
IS 3156
Status
1
Certification
Voluntary
Committee
Instrument Transformers
Type
Product Specification

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What is IS 3156?

IS 3156 is an Indian Standard published by the Bureau of Indian Standards (BIS) under the title Voltage transformers: Part 3 Protective voltage transformers. It falls under the <strong>Electrical Switchgear and Other Electrical Products/Accessories</strong> group. Certification under this standard is voluntary.

How to get certified for IS 3156

  1. 1
    Apply online — Submit the BIS portal application with product details, factory information, and test reports.
  2. 2
    Lab testing — Submit product samples to a BIS-recognised testing laboratory for evaluation against the standard.
  3. 3
    Factory inspection — A BIS officer visits your manufacturing facility to verify quality control systems.
  4. 4
    Licence grant — On approval, BIS issues the licence. You may then affix the ISI Mark on compliant products.
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