/50 2 Created on April 26, 2025 By Sanjay Singh ELECTRICAL PAPER -Installation testing and maintenance of electrical installations Paper - 3 विद्युत संस्थापनाओं की संस्थापना परीक्षण तथा उनका अनुरक्षण PAPER 3 JULY 2023 1 / 50 Cable trenches inside sub-station and switch stations containing cables shall be filled with ……………. Pebbles A, B or...


