Tender For corrigendum : rectification of electrical safety defects - supply and installation of electrical danger notice boards conforming to is 2551 1982 and the indian electricity rules, 1956. each board shall be fabricated from mild steel plate not less than 1.6 mm thick, vitreous-enamelled in visible red finish, with lettering, figures, and skull-and-crossbones emblem in signal white. plate size 200 150 mm with rounded corners, suitable for 415 v medium-voltage installations, bearing bilingual wording (english and tamil) centrally spaced as per the standard. fixing holes of suitable diameter for rivets shall be provided at the corners. boards shall be permanently affixed in conspicuous positions on distribution boards and panels using corrosion-resistant rivets or equivalent fasteners. the rate shall be quoted per piece inclusive of supply of board, rivets, and complete affixing, inspection, testing, cleaning, recommissioning, and submission of the test report for the lightning protection system installed on a 30 metre-high ms wireless tower, including the removal and replacement of all associated fasteners on the downcomer gi plate, ensuring full compliance with applicable standards and operational safety requirements. , inspection and testing of earth electrodes; reconditioning and refilling of earth pits; removal of corrosion from contact plates; replacement of fasteners; cleaning of earth pit troughs; correction of wall separators for earth pits; painting with yellow colour; fixing of durable identification labels with red-coloured text in the respective troughs; provision of closure slabs; and submission of test reports along with photographic evidence. walls to be provided newly: 5- earth pits with existing walls: 22, refilling of silica gel in 11 kv/415 v step-down transformer breather, ensuring proper colour indication and complete replacement of exhausted, dehydrated, or saturated silica gel., insulation and safety covering of exposed live terminals in the 125 kva dg set and of the outer surface of the tneb ht meter box using pvc/acrylic insulation sheets of adequate thickness, rating, and appropriate size suitable for the respective voltage levels, ensuring full electrical insulation and compliance with safety standards. size; 30x20 inches-1 no. 12x24 inches-1 no.
16 Sep, 2025
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