REPAIRS, MAINTENANCE, RELAYING, REPLACEMENT OF DEFECTIVE ARMOURED LT CABLE, WIRES, CABLE TRAYS, MOUNTING ARRANGEMENT, EARTHING AND ALLIED WORKS IN VARIOUS BUILDING IN NAVAL DOCKYARD, VISAKHAPATNAM UNDER GE (I) DM VISAKHAPATNAM.

Amount

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth and getting out in soft loose soil for cable work or from above cable duct all as specified and directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick all as specified and directed.

Removing of excavated material n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point all as specified and directed.

M&L for dry sand cushioning for under ground cable provided with layer and sand 8 cm deep before laying the cable and 15cm after laying the cable complete all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, size 300mm x 180mm x 40mm all as specified and directed.

M&L for PCC 1:3:6 , type-C 2, using 40mm graded agregrate for repair to path/drain/road against damege due to excuvation/laying of cable complete all as specified and directed.

Supply, laying in cable tray/wall & connection PVC XLPE insulated, armoured havey duty electric cable with aluminium conductor, 1100 Volts grade cross section area 10 Sqmm 4 core incl dismantling taking down unsv one from wall, cable trey, trench complete all as specified and directed

All as per item No. 7.00 above, but of size 16 sqmm, 4 core

All as per item No. 7.00 above, but of size 25 sqmm, 4 core

All as per item No. 7.00 above, but of size 35 sqmm, 4 core

All as per item No. 7.00 above, but of size 50 sqmm, 3.5 core

All as per item No. 7.00 above, but of size 70 sqmm, 3.5 core

All as per item No. 7.00 above, but of size 120 sqmm, 3.5 core

All as per item No. 7.00 above, but of size 240 sqmm, 3.5 core

All as per item No. 7.00 above, but of size 300 sqmm, 3.5 core

All as per item No. 7.00 above, but of size 400 sqmm, 3.5 core

M & L for Earthing complete with galvanised steel earth plate electrode 60 x 60cm x 6mm thick, buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level, connected to galvanised iron strip 32 x 6 mm as earth lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical Plate No. 2, connected to the earthing test point, concrete pit in PCC 1:3:6 type C-2 with RCC precast pit cover slab 80mm thick with handle for lifting made out of 8mm dia MS rod, Funnel with watering pipe, wiremesh, charcoal and salt in alternate 150mm thick layers around earth plate including necessary returning filling in & removal all as specified or indicated in SSR Part-I, including testing to achieve earth resistance value as per IS specification on completion after dismentling taking out unserviceable one complete all as specified and directed.

S&F Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe/duct or fixed to poles or any other indicated situation for loop earthing etc. using required nut, bolt & washers as per site requirement of size 32x6mm galvanised iron strip including taking down unserviceable one from conduit/pipe/duct complete all as specified and directed.

Dismentaling and taking down old UNSV LT panel and Supply & fix, install, testing and commissioning of LT Panel box , outdoor type cubical shape,three phase, 4 wire, copper bus bar for phases 600 Amps and neutral 300 Amps made out of CRCA sheet ,3 mm thick ,factory fabricated , CPRI approved , Pure Polyester Powder coated ,dust and vermin proof , provn for ventilation , angle iron frame and four legs of 50x50x6mm thick angle iron ,4 ft long grouted on PCC foundation of height not less than 30 cm from the ground level , grouting properly ,and of suitable size to accomodate the items mentioned below and having seperate compartment /chambers for cable gallery busbar,switch gear etc all as specified and comprising of following including necessary cable connections to the MCCBs ,voltmeter,Ammeter and cable lugs etc.

(a) MCCB, 4 pole, 630 Amps with breaking capacity 36 KA -01 No (Incoming) (b) MCCB, 3 pole, 200 Amps with breaking capacity 36 KA -01 Nos (Outgoing) (c) MCCB, 3 pole, 160 Amps with breaking capacity 36 KA -03 Nos (Outgoing) (d) MCCB, 3 pole, 100 Amps with breaking capacity 16 KA -02 Nos (Outgoing) (e) Phase indicating lamps in red/blue/yellow colours "LED type" - 03 Nos (f) Digital multimeter showing voltmeter, Ammeter, frequency, PF, KWH - 01 Set Note:- Rates for Excavation, PCC for foundation (Civil wk) and other work reqd for installation shall be deemed in contractor quoted rates.

MSN ENGINEERING WORKS (BID ID -3118173)

R AND A ASSOCIATES ENGINEERS CONTRACTORS (BID ID -3124303)

ARCHANA ENGINEERING ENTERPRISES (BID ID -3123007)

M/s SS Engineering Enterprises (BID ID -3124125)

M/s Jai Ganesh Engineering Solutions (BID ID -3133059)