CA NO. GE AF NO.1/GUR-90/2025-26 IMPROVEMENT OF CERTAIN EARTHING INFRASTRUCTURE FLAME PROOF LIGHTING AND CONDITIONING APPARATUS IN X AREA AT 54 ASP AND MINOR WORK AT 13 BRD AF UNDER GE (AF) GURGAON NO 1

Material and labour for 20 x 3.15 mm copper strip as earth continuity conductor or main earthing lead fixed to wall on porcelain insulator of suitable size or burried in ground or drawn in conduit / pipe or fixed to pole or any other indicated situation or loop earthing etc. connected with test terminal point etc. complete including fixing with saddles and screws for fixing porcelain / epoxy insulators / conduit pipe complete all as specified and as directed.

Material and labour for 25 x3.15 mm aluminium strip as earth continuity conductor or main earthing lead fixed to wall on porcelain insulator of suitable size as a separator between wall and strip not an interval more than 45 cm connected with test terminal point etc. complete including fixing with saddles and screws for fixing porcelain / epoxy insulators / conduit pipe complete all as specified and as directed

Supply, installation, testing and commissioning of Monoblock type centrifugal pump of Capacity 15 HP, having Discharge 7.5 LPS water flow and 20 MWC head suitable for 3X75 TR Central AC Plant along with elastomeric insulation, self-priming, single-stage, centrifugal volute type pump having cast iron casing, enclosed type dynamically balanced phosphor-bronze/SS impeller, high tensile steel shaft, carbon steel stuffing box (sealed by mechanical seal), deep groove ball bearings, base plate, mounting channel frame, elastomeric insulation, accessories and fittings, viz. mechanical seal, pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting and TEFC squirrel cage induction motor having IE- 3 efficiency and conforming to IS 12615: 2018 suitable for operation on 3- Phase, 415 V ± 10%, 50 Hz AC supply complete all as specified and directed. Note : Necessary civil work viz. foundation for placement of pump and pump accessories shall be covered in the scope of work.

Earthing complete in with galvanised steel earth plate electrode 60×60cm× 6mm thick, buried directly in ground (earth pit not lessthan 2.25 metres deep below groundlevel) with top edge of the plate not less'than 1.5 metres below normalground level, connected togalvanised earth lead wire 4.0mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion but using galvanised iron strip 32×6mm as earthing lead including 40mm bore GI light grade pipe with all fitting from top of electrode to the body of equipment fixed with and including 25 x 4mm flat iron clamps, bolts, nuts and washer and also including GI pipe medium grade for watering from bottom of earth pit to top of electrode including GI funnel with wire mesh all as shown in electrical plate No. 3 including PCC pit (1:3:6) type C1 in cement concrete 40mm thick precast RCC cover in (1:2:4) type B1 reinforced with 8mm dia TMT bars @ 75 c/c both ways with 01 No lifting handle of 12mm dia MS plain bar, etc. complete all as specified and as directed by Engineer-in-charge. NOTE : Quantity of GI strip/ protection pipe beyond 7.5mtrs length shall be measured and paid separately.

Material and labour for making PCC block of size 25 x 25 x 25 cm by providing precast cement concrete 1:2:4 type B1(using 20mm graded stone aggregate) and setting in cement mortar 1:4 for arresting GI pipe post on the roof top of the building complete all as specified and as directed

M&L for making stand post (1 m long) each made out of GI Pipe 50 mm dia medium grade for fixing on the roof top of the building, etc.complete all as specified and directed.

S&F single pointed air termination aluminium rod 1500 mm long 20 mm dia of superior quality of the rod for fixing on stand post on the rooftop of the building etc. complete all as specified and directed.

Material & Labour for Test point terminal block made of gun metal or phosphorus bronze size 75x75x25 mm, drilled and screwed including 3 nos. 8mm dia 25 mm long hexagonal head screw and connected to copper / Aluminium / GI strip incl strip overlapped and rivetedd complete housed in a PVC junction box complete all as specified and as directed.

S&F in replacement of FlameProof- Weather Proof Distribution panel SPN 8 way, IP 65 protection, Material-Mildsteel with one incoming MCB DP 63 Amp and 06 Nos of outgoing SP MCB 16Amp having rotary type nobe with complete busbar & wiring upto terminals , incoming outgoing chamber complete set all as specified and as directed by Engr-in-Charge. Make: sudhir/Shyam / Bajaj / Crompton