ADDITIONAL/ ALTERATION AND UP-GRADATION OF TRANSFORMER AND ELECTRICAL INFRASTRUCTURE NEAR SHOPPING COMPLEX, STADIUM AND STN HQ UNDER GE(A) JAISALMER

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundation, laying of cable/pipe etc not exceeding 10 sqm on plan and getting out in soft/loose soil complete and disposal of surplus excavated soil as directed within a lead of 50m all as specified & directed by Engineer-in-Charge.

Excavation in trenches n.exc 1.5 m wide and exc 1.5 m depth but not exceeding 3.0 m depth and getting out soft/loose soil, including trimming the sides and forming bottom surface to required levels for laying cables complete all as specified and directed by Engineer -in- Charge.

Returning, filling in, including, spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick soft/loose soil complete all as specified and directed by Engineer -in- Charge.

Supply, Installation, testing and commissioing of outdoor type step down transformer 315 KVA, 11/0.433 KV, 3 Phase 50 Hz, ONAN Cooled Oil Immersed Copper wound complete with oil tank including first fill of ISI marked insulating oil up to top level, oil level indicater, breather with Silica gel, lifting hooks, drain valve, air vent valve, tackel wheel with channel and locking arrangement to put on the plinth with external cooling tubes, Core type, delta connected on primary side (HV) and star connected on secondary side LV) in accodance with vector symbol DYN-11 (vector Group-4) with neutral brought out on secondary side (LV Side) OFF load tap Changer with mannual voltage regulation 0.433 KV in suitable steps/position on HV side to give output of 0.433 KV on LV side and provision of following accessories and connecting with electrical system, earthing etc. including all jointing materials, all as per IS 1180-2014 and energy efficiency level-II including filling of trasformer oil having confirming to IS : 335-1993 of dyelectric strength more than 50KV complete all as specified and directed by Engineer -in- Charge. and shall comprise of the following accessories as per manufactures direction :- (a) 03 Nos porclain HT bushings with brass/gun metal bushing rods complete with nut and washers on primary(HV) side with HV Cable box (without cable Gland). (b) 4 Nos porcelain bushings with brass/gun metal bushing rods complete with nut and washers on secondary(LV) side suitable for XLPE LT Cable with LV Cable Box (without Cable Gland) (c) Oil conservator with filter typedrain valve and oillevel gauge oil filter hole with caps/plugs and breather assemby.

Taking down the old existing LT Cable of any siz eincluding DWC pipe of any dia etc complete all as specified and as specified and directed by Engineer -in- Charge.

Supply and laying DOUBLE WALLED CORRUGATED (DWC) pipe 90 mm bore as per IS-16205 part-24 for cable protection including all fittings as required complete all as specified and directed by Engineer -in- Charge.

Supply and laying DOUBLE WALLED CORRUGATED( DWC) pipe 75 mm bore as per IS-16205 part-24 for cable protection including all fittings as required complete all as specified and directed by Engineer -in- Charge.

Supply and laying DOUBLE WALLED CORRUGATED (DWC) pipe 63 mm bore as per IS-16205 part-24 for cable protection including all fittings as required complete all as specified and directed by Engineer -in- Charge.

Supply and laying DOUBLE WALLED CORRUGATED (DWC) pipe 50 mm bore as per IS-16205 part-24 for cable protection including all fittings as required complete all as specified and directed by Engineer -in- Charge.

Supply laying & testing LT electric cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 1100 volts grade, of size 240 sq mm 3½ core complete all as specified and directed by Engineer -in- Charge. Note :- Earthwork, excavation & protection pipe shall be measured and paid separately under relevant items.