bids are invited for plcc1 - supply- plcc - coupling device phase to phase (2lmu with 1bt) , plcc2 - supply- plcc - hf cable 75ohms unbalanced , plcc3 - supply- plcc - for local end-carrier equipment analog type (for speech+data & speech+protection) in 400kv lines , plcc4 - supply- plcc - analog protection coupler for plcc , plcc5 - supply- plcc - for local end- digital protection coupler , plcc6 - supply- plcc - epax (24/8) with 24 nos telephones, cable etc , plcc7 - supply- plcc - express telephone instrument alongwith associated accessories, wiring etc , plcc8 - supply- plcc - 5 pair telephone cables, armoured, 0.5 sqmm annealed copper conductor and petroleum jelly filled with polyethene outer jackets , plcc9 - supply- plcc - 2 pair telephone cable (tinned copper) , plcc10 - spares- plcc - power amplifier unit , plcc11 - spares- plcc - remaining modules/ sub unit , plcc12 - services- plcc - system engineering including computer study , freq. planning and snr calculations , plcc13 - services- plcc - supervision of pre-commissioning (panel wise) , plcc14 - services- plcc - supervision of testing and commissioning (link wise) total quantity : 2022