Construction of 132/33 kV GIS substation November 17, 2017 | Asia Pacific Tenders Competitive bids are invited for the construction of the 2x90 MVA, 132/33 kV Pelangi Indah gas-insulated switchgear (GIS) substation located in Johor. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password