IS 3961 : Part 1 : 1967 Recommended current ratings for cables: Part 1 Paper insulated lead sheathed cables
| UDC 621.315.221.5.02 : 621.315.614.6 | ETD 9 |
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| Reaffirmed 2021 |
1. SCOPE
1.1 This standard (Part I) covers recommended current ratings for paper-insulated lead-sheathed cables covered by IS : 692-1973, either laid direct in ground, in ducts or in air.