IS : 2165 (Part 1 ) - 1977 ( Reaffirmed 1996) Indian Standard INSULATION CO-ORDINATION PART 1 PHASE TO EARTH INSULATION CO-ORDINATION, PRINCIPLES AND RULES ( Second Revisiofi…
IS : 2165 (Part 1 ) - 1977 ( Reaffirmed 1996) Indian Standard INSULATION CO-ORDINATION PART 1 PHASE TO EARTH INSULATION CO-ORDINATION, PRINCIPLES AND RULES ( Second Revisiofi…