installation of street lights at bhejaput and mathalput , nalco , damanjodi , supply , installation and commissiong of sword type decorative octagonal double arm street light pole by making new rcc foundation suitable for 8 mtr gi octagonal pole as per desgin derived from strctural calculation considering sbc as 10t per sq mtr and basic wind speed as 50mtr/sec . all materils required for makeing the foundation and nut bolts for errection of pole shall be under the scope of the contractor . loop in , loop out and termination of cables at gi octagonal poles shall be under the scope of the party . detailed technical specification of poles shall be as per the annexure-ii . , supply and installation of complete chemical earthing system , making of earth pits including excavation in hard soil of size 10 ft . x 2 ft . x 2 ft . or 6dia x10 feet depth drill hole , resurfacing with black cotton soil , including supply of high conductive rust free copper coated earth electrode , special earth enhancement compound ( minimum 50 kg ) , electrode clamp , copper strip for connection between earth pit and equipment , complete with brick chamber and rcc cover . ( make-erico , obo betterman . , providing and fixing 6 swg dia g . i . wire on surface or in recess or excavated trench for loop earthinh / continius earth , supply of 4c x 16 sqmm stranded aluminium conductor , hr pvc ( type:c to is:5831 ) colour coded ( red , yellow , blue , black ) , cores laid up , inner sheath of extruded hr pvc ( type:st-2 ) galvanised steel round wire armoured hr pvc ( type:st-2 ) outer sheathed cable suitable for 1 . 1kv grade conforming to is:1554/p-1/88 . the size and length of the cable shall be embossed on the outer sheath of the cable at every meter length , laying of one number pvc insulated and pvc sheathed / xlpe power cable of 1 . 1 kv grade of following size direct in ground including excavation , sand cushioning , brick protective covering and refilling the trench etc . as required ( up to 35 sqmm ) , supply of rcc poles of height 09 meters and shall be suitable for carrying ab cable , erection of rcc/ pcc pole of following length in brick ballast and ramming the foundation , finishing with 150 mm thick cement concrete ( 1:3:6 ) layer on top with including excavation and refilling etc . as required . ( above 08 meter ans up to 11 meter ) , supply of aerial bundelled cable of size 3x16+25sqmm , laying and fixing of pvec insulated ab cable over the poles hard wares such as hooks / hook clamps required for laying and fixing of ab cable shall be under the scope of the party , supplying and fixing of 32 mm dia x 2 . 00 meter long g . i . pipe ( medium class ) bracket for mounting of fluorescent / hpmv / hpsv street light fitting on pole including bending the pipe to the required shape , 2 nos . 40 mm x 3 mm flat iron clamps with nuts , bolts and washer , painting the flat iron with primer and finish paint as required , supply and instalation and testing of led street light fitting of 90w with complete set with pressure die cast aluminioum houseing with ip66 protection ( street light fittings ahall be supplied by nalco as fim ) , supply and laying of 3cx2 . 5 sqmm pvc sheeted copper flexible cable inside octagonal gi poles and from ab cable to street light fitting through the pre installed gi bracket , supply and installation of out door type , weather proof timer controlled feeder pamel with provision for auto / manual selection with by pass arrangement as per specification . this includes: a ) incoming: 1 no 63-a 4p mcb type isolator followed by 1 no 70-a 3p ac3 duty power contactor . b ) 1 no progrmmeable astro timer switch . c ) 1 no bypass toggle switch . d ) outgoing: 9 nos . 25-a 2p mcb .