CWE/P-09/2026-27

Supply, install, testing and commissioning of Copper wound step down Transformer, outdoor type, oil immersed, naturally cooled ONAN, rated temperature rise in Oil and winding 45/50 degree centigrade complete with standard fittings of Capacity 800 KVA HT 11KV three phase, LT 433 volts three phase 4 wire 50 Hz and Energy Efficient level - 3 with ON Load Tap Changer Copper wound Class A Oil and paper Insulated of vector group Dyn- 11 with on load tap changing device on HT side to vary secondary voltage from +7.5 percent to -7.5 percent in steps of 2.5% including cable box on HT and LT side, first fill of new transformer oil having dielectric strength not less than 60KV, and suitable mounting rail of appropriate gauge and others standard accessories all as per IS : 1180 ( Part-1) : 2014. (with latest amendment ) Note :- The rate quoted deemed to be inclusive of the followings:- (a) Cable termination boxes on LT side and HT side (b) Conservator with filter type drain valve and oil level gauge (c) Breather with silica gel (d) Explosion Vent (e) Thermometer pockets with thermometer on tank cover (f) Rating plate, monogram plate and terminal marking plate (g) The earthing terminal two Nos to faciliate fixing of earth strip (h) Oil filling hole with cap/plug with connection plate complete (i) Air release plug (l) Drain outlet pipe with brass gate valve and dummy plug (m) Initial filled transformer oil upto recommended level confirming to IS 335 (n) ONAN type coolling, vector group DYN 11 (o) Oil level gauge and lifting lugs and others standard accessories all as per IS : 1180 (Part-1) and losses as per clause 7.8.1.1 of IS : 1180 (part-1) 2014 etc. Any other item as per manufacturer recommendations for best function of transformer if any required are deemed to be included in the quoted rates and complete all as specified and directed.

Construction of Platform of size not less than (3m x 2.5m x 0.6m) with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 mm thick in foundation, brick work in CM 1:6 with sub class "B" old size brick, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc of size 3000mm x 2500mm x 1200mm with fencing foldable upto 1.5m height, gate with locking arrangements using GI wire mesh, GI wire 4mm dia, angle iron, MS plate etc, complete all as specified and directed and shown in drawing No. CEPZ/C-TD/002/13

M & L for Earthing complete with galvanised steel earth plate electrode 60×60cm× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to the Galvanise Iron earth lead 32mmx6mm (GI Strip) size, by means of bolts, nuts, check buts and washers complete up to and including test point and 32mmx6 mm earth lead protected by provision of GI medium grade pipe 40 mm bore and 20 mm bore for watering pipe including PPC pit in PCC (1:2:4) type B-1 using 20 mm graded stone aggregate ,PCC pit cover including earth work complete all as shown in Electrical Plate No-5 of SSR-2014 (Part-I). NOTE-: GI earth strip shall be measured and paid for separately under relevant item of schedule complete all as specified and directed.

M & L for Galvanised strip 32 mm x 6 mm buried in ground or fixed to poles or any other indicated situation for loop earthing etc complete all as specified and as directed.

Supply and Fixing of Cable jointing kit for 11000 V (Earthed) grade cable for outdoor termination joint cold shrink type joint complete with jointing material and accessories suitable for 3core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed.

Supply and laying in trenches, through pipes or under culvert of XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 volts (earthed grade) including copper strip tapping IS 7098 Part 2-1985 grade with stranded aluminium conductor of size 95Sqmm x 3 core laid in trenches/ on wall/ Air/ Pole/ in duct/ through pipe complete all as specified and as directed. Note : Earthwork, sand cushioning, covers and pipe shall be measured and paid separately.

Supply, laying and testing of 1100 volt grade XLPE insulated heavy duty cable, 400sqmm 3.5 core, strip armoured with aluminium stranded conductor overall PVC sheathed confirming to IS-7098 Part-I and its latest amendments etc laid in trenches etc complete all as specified and directed. Note : Excavation & Earthwork shall be measured and paid separately.

Supply, laying and testing of 1100 volt grade XLPE insulated heavy duty cable, 240sqmm 3.5 core, strip armoured with aluminium stranded conductor overall PVC sheathed confirming to IS-7098 Part-I and its latest amendments etc laid in trenches etc complete all as specified and directed. Note : Excavation & Earthwork shall be measured and paid separately.

Supply, laying and testing of 1100 volt grade XLPE insulated heavy duty cable, 185sqmm 3.5 core, strip armoured with aluminium stranded conductor overall PVC sheathed confirming to IS-7098 Part-I and its latest amendments etc laid in trenches etc complete all as specified and directed. Note : Excavation & Earthwork shall be measured and paid separately.

Excavation in trenches in any type of soil n exc 1.5 mtr in width and n. exc 1.5 mtr in depth and getting out all as required for laying of cables,foundation filling of poles or stays and for rerouting of cables complete all as specified and directed.