Replacement of existing old aged & deteriorated 132KV porcelain disc insulators( YOC:1955) with new 132kV 120kN Antifog disc insulators at all suspension towers (34 Nos) and with 132kV 120kN SRC insulators at all tension towers (11Nos) from Loc. No. 22 to 66 in 132kV Machkund - Araku DC line under RMI scheme in O&M Circle Visakhapatnam
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