Installation of intermediater structures for 230 kV lines February 23, 2018 | Asia Pacific Tenders Competitive bids are invited for the installation of intermediater structures for the 230 kV Paco–Muntinlupa (tower number 23-24) and Mintinlupa–Binan (tower number 5-6) transmission lines. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password