IMPROVEMENT TO EXTERNAL INTERNAL WIRING CABLING LIGHTNING ARRESTOR AND ALLIED WORKS AT HQ SAC U UNDER GE AF TRIVANDRUM

Amount

Supply and installation in repairs to stainless steel wire mesh cable tray 500mmX105mm, 105mm(H) x 500mm(W) x 3000mm(L) x 4.8mm(D) SS-304 grade wire mesh cable tray, joint connectors, wall and support brackets, hold-down clamps, wedge anchors, and UV-resistant cable ties. designed for cable safety and management, ensuring proper cable routing, protection, and organization, and complete with mounting hardware, ensuring compliance with relevant standards (e.g., IEC, IEEE) for cable management and electrical safety. (Item rate includes supply, installation, testing, and commissioning of the cable tray system, including all materials, labor, equipment, and civil works Etc...) Make of SS Cable tray shall be any CAM (command approved make)

Taking out old defective under ground cable from trenches floor / road / wall / pipe/ pole of size and description, complete all as directed.

Supply and laying in trenches or passing through pipes/ poles, wall/roof etc LT XLPE cable heavy duty 1100 Volts grade of size 4 core 25 sq mm with multistranded aluminium conductor, armoured of the following sizes with provn of cable lugs and glands as required complete all as specified and directed

All as per item No.3 here in above but of size 3.5 core 35 sq mm

All as per item No. 3here in above but of size 3.5 core 50 sq mm

All as per item No.3 here in above but of size 3.5 core 70 sq mm

All as per item No.3 here in above but of size 3.5 core 95 sq mm

All as per item No.3 here in above but of size 3.5 core 120 sq mm

All as per item No.3 here in above but of size 3.5 core 150 sq mm

All as per item No.3 here in above but of size 3.5 core 300 sq mm

S&F in replacement of HDPE Pipes PN 10 of size 75 mm bore incl necessary fixing arrangement on wall/roof or laying in trench complete all as directed

All as per item No. 11 above HDPE pipe of size 100 mm

All as per item No. 11 above HDPE pipe of size 150 mm

Excavation in trenches not exc 1.5m wide and not exc 1.5m in depth for laying UG cable not exc 1.5m in depth and getting out in hard/dense soil complete all as specified and directed

Removing excavated material not exc 50m and depositing where as directed at a level not exc 1.5m above the starting point complete all as specified and directed

Returning, filling of excavatted soil upto a depth of 30cm after riddling the excavated soil for cushioning of cable and refilling of trench with normal excavated soil

Supply and lay in trenches burnt bricks sub-class ‘B’ of size 150 x115x75 for cable protection complete all as specified and directed

M/L for PCC 1:3:6 Type C1 with 20 mm graded aggregate for coping , over road cutting surface complete including necessary foam work complete all as specified and directed

Supply, Install, testing & commissioning factory l made Out door type dust and vermin proof Feeder pillar LT panel board cubical double door hinged type compartmentalized of suitable size 415 volts, AC 50 Hz fabricated of CRCA sheet 3 mm thick machine pressed and angle iron frame 50mm x 50mmx 6mm grouted in PCC 1:2:4 type B1 (20mm grade stone aggregated) powder coated inside and outside complete including 4 poles aluminium bus bar of suitable size mounted on porcelain insulators and enclosed in chamber made out of 2mm thick CRCA sheet machine pressed and connection from incoming and outgoing electric cable with suitable size thimbles / lugs cable gland with open able shutters on both side and comprising of the following :-

(i) in comming ACB 630 Amp, 50 KA, 4 Pole 415 Volt microprocessor based release - 01 Nos (ii) Out going MCCB 250 Amp, 36 KA 4 Pole 415 Vol microprocessor based releaset , - 02 Nos (iii) out going MCCB 160 Amp 4 pole 415 volt 36 KA ,microprocessor based release- 03 Nos (iv) out going MCCB 100 Amp 4 pole 415 volt 36KA,microprocessor based release - 04 Nos (v) out going MCCB 63 Amp 4 pole 415 volt 25 KA,microprocessor based release - 05 Nos (vi) Copper bus bar for 3 Ph & Neutral 800 Amp (25MMX9MM) 6-WAY for switch gear inter connetion of sufficient length. (viii) Muti functional meter with CT- 03 No at incoming (ix) R,Y&B Phase indicator neon lamps for 3 Ph -01 Set (x) Street light control console consisting of 01 No contactor 3 phase heavy duty 32Amps rating with 415Volts digital time switch, Alfa Rex D22, astro 2 channels with power back up -01 No (xi) MCB TPN 415V 32A -01 No (xii) Digital Volt meter and ammeter in each MCCB out going feeders Note: Cost for foundation as per manufacturers dimentions is includeded in rate quoted / item rate includes civil works, all materials, labor, equipment, testing, and commissioning.

Supply and fix of onload changeover switch 4P 630 A,50 KA with sheet metal enlcosure including necessary fixing arrangments complete all as directed.

Material and labour for removing of existing unserviceable Pits Supply and installation of Earthing sets comprising 17.2 mm dia 3 M long Earth electrode of low carbon steel electrode with 250 micron copper bonding and 1 bag of Eco-safe based environmental friendly bametals)ckfill earthing enhancing compound should strictly be an eco-safe carbon-based conductive concrete type which has a resistivity of less than 0.12 ohm-m as per clause 14.5D of IEEE : 80Standard backfill compound should be electronically conductive ( like in metals)and should not depend on moisture for conduction. Backfill compound should be eco-friendly, should solidify when mixed with water and set like concrete and should not leach/diffuse into the ground. it shall not be mixed with any soil while pouring into the bore hole. A test certificate for the backfill compound shall be submitted along with this material. Earth pit chamber size of 300x300.; 17.2/OD SS Clamp Both side. Make of components shall be any CAM. "

S&F Air termination, multi pointed copper rod 12mm dia and 300cm long

Supply and fix in repair copper strip, 20mm x 3.15mm, on wall ,roof or in trench as earth continuity conductor .

All as per item No 23 above here in above but of capacity 32mm x 6 mm, buried in the ground up to a depth of 30 cm, for the earthing ring conductor.

Supply and fix in repairs test terminal block, 75mm x 75mm x 25mm, made of gunmetal or phosphor bronze, drilled and tapped, including 3 nos. 8mm x 25mm long screws with head.

Material and labour for removing of existing unserviceable Earthing Supply and installation of Earthing sets comprising 17.2 mm dia 3 M long Earth electrode of low carbon steel electrode with 250 micron copper bonding and 1 bag of Eco-safe based environmental friendly bametals)ckfill earthing enhancing compound should strictly be an eco-safe carbon-based conductive concrete type which has a resistivity of less than 0.12 ohm-m as per clause 14.5D of IEEE : 80Standard backfill compound should be electronically conductive ( like in metals)and should not depend on moisture for conduction. Backfill compound should be eco-friendly, should solidify when mixed with water and set like concrete and should not leach/diffuse into the ground. it shall not be mixed with any soil while pouring into the bore hole. A test certificate for the backfill compound shall be submitted along with this material. Earth pit chamber size of 300x300.; 17.2/OD SS Clamp Both side all as specified and directed. Make of component shall be any CAM.

Supply and installation of Power coated Earth Boxes/testing point made of MS sheet with phosphor bronze Bus Bar. Earth box is fixed on nearby wall or MS stand. One earth box each will be connected to a dedicated earth electrode.

Suply and Fixing of insulators suitable for mounting earth conituity strip on wall/roof with nut and bolts required complete all as specified.

Supply and fixing of AC drain pipe made of UPVC of size 25mm dia. pipe and connecting Existing AC indoor unit to the main 50mm dia. , with all necessary fittings such as elbows, joints, Tee bends and expansion joints, and fixings like clamps and nut-bolt assemblies. The system will be designed to efficiently drain condensate water from existing AC units, laid with a slope to ensure smooth flow, properly fixed and supported to prevent sagging or damage, and tested to ensure proper functioning. The pipes and fittings will be made of UPVC material, suitable for drainage applications, and the system will be leak-proof and durable all as specified and directed.

All as per item No29 here in above but of size 50 mm dia

Supply and execution of duct work modification and rerouting, including cutting and redirecting the existing duct from CHOC room to the CHOCs Equipment room, installing a duct chamber with suction and delivery vents, complete with requisite fittings, dampers, and accessories, ensuring minimal disruption to existing cooling system performance, maintaining current temperature and airflow parameters, particularly at the existing location, with ambient temperature at 24°C, and ensuring no loss of cooling effect, to be executed under expert supervision with precision and minimal downtime.

Supply and fix in repairs to the existing duct grill (500x150)MM of suction and delivery vents in the duct chamber of the CHOC room, ensuring minimal disruption to cooling operations and maintaining current temperature and airflow parameters at the existing location. Make of components shall be any CAM.

GRAND COOL SOLUTIONS (BID ID -3476512)

Archana Transport (BID ID -3476537)

MONA GENERATOR SEVICES PVT. LTD. (BID ID -3476499)

Jack Electrolinks Private Limited (BID ID -3471183)