bids are invited for connecting commissioning and testing of lt cubical feederpillar box of suitable size cpri approved factory made ,material and labour plain cement concrete 1.2.4 type b 1using 20mm graded crushed stone , m and l double wallcorrugated dwc for pressure rating 6kg cm2 laid in trenchof size 40mm dia with all fittings , m and l double wallcorrugated dwc for pressure rating 6kg cm2 laid in trenchof size 50mm dia , m and l double wall corrugated dwc forpressure rating 6kg cm2 laid in trench of size 80mm diawith all fittings , s and f sheet metal enclouser 4 way vtpndb for mccb isolator rccb and rcbo 415 volt with 100amps rated bus bar for each phase , mccb 80 ampsbreaking capacity 16 ka four pole adjustable thermal andadjustable magnetic protection conforming to iec 60947 iiis 13947 ii , supply and fixing 240v 10 ka b curve miniaturecircuit breaker mcb of single pole and neutral and currentcarrying capacity 63 amp , supply and fixing 415v 10ka ccurve miniature circuit breaker mcb of four pole 63 ampand current carrying capacity , m and l for submain wiringusing proper colour coding with 2x10sqmm of single corepvc insulated total quantity : 3970