Repair and maintenance of HT Cable GO DO HT 46 pole and connected items at Md Accn Sanyat Line, Maude Line Karam Vihar MAP Tigris Road MAP Sumran Line New NPG Line Old NPG Line Shekhawati Line Hazipeer Line, Panchwati DAD, NSB-III and associated area

Amount

Disconnecting, dismantling & removing old unsv PCC four pole structore from site. Location : New NPG Line

Supplying, installation, testing and commissioning of 11 KV, 630 Amps having short circuit capacity 21kA/3-sec, outdoor (IP54), RMU (Ring Main Unit) 4-way comprising of 02 Nos manually operated Load Break Switches and 02 Nos 630 Amp Fixed-Type spring-charging VCBs, electrolytic grade copper bus bars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Magnetic Grade) tank with minimum thickness 3+0.5 mm, IP 67 Degree of Protection, internal-arc classified 21kA/1sec as per IEC62271-200, on-site-repairable with site replaceable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have pad lockable double-door access with anti-theft hinges, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit shall include the following along with all necessary accessories and fittings as required at site. (A) 02 Nos Incoming Load Break Switches module each consisting of following accessories :- (i) Each switching-unit shall be designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 11kV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity 50kA - 01 No (iii) Auxiliary contacts 1NO + 1NC - 01 No Location : New NPG Line

(B) 02 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch. The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 11kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 21 kA/3-sec, Making Capacity - 50kAp - 01 No (iii) Aux. contacts 1NO+1NC - 01 No (iv) Stored-energy manual high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow un-inhibited operation -01 No (v) Cable terminals (site replaceable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV, 185 Sqmm, 3 Core, XLPE cable termination in live-condition - Set of 3 (vi) Right angle boots (push on type) - Set of 3 (vii) Associated ring-core cast-resin insulated CTs 100/1 Amp 2.5 VA, 10P10 for protection – Each Set of 3 (vii) O/C + 1E/F self powered numerical protection relay with Low and High set for over current and Earth Fault. Relay shall have the facility to display the maximum loaded phase current also. Relay shall record minimum 5 fault records with time stamping and shall be communicable on MODBUS. (viii) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (ix) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (x) Mechanically latched buttons for breaker On/Off - 01Set (xi) ON, OFF, TRIP mechanical indication on the front mimic of the panel.

(C) Additional equipment delivered separately or mounted separately :- (i) Operating Handle for Manual Isolator/Disconnector/Earthing Operation - 02 Nos (ii) Standard Manometer - 01 No (iii) Operation and Maintenance Manual - 01 No (iv) Installation & Commissioning Manual - 01 No (v) Cable clamping provision (standard) - 01No Note :- (i) It shall be preferable to have all feeder-switches inside single stainless steel compartment with incomer feeders at the extremities to prevent chances of failure due to plug-in coupling arrangement. (ii) Necessary interlocking arrangement shall be provided for safety and operations (iii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iv) Cost of Provision of Plinth for RMU as per OEM drawing shall be deemed to be included in the cost inserted by the bidders.

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 m deep in soft/loose soil) for laying of cables or GI pipe and getting out including levelling of bottom suface to required level complete all as specified and directed

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified.

Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1, flat size 300mmx 180mm x 40mm.

Laying only old HT cable cover obtained from excavation complete all as directed.

Returning filling in,. including spreading, levelling, watering and well ramming soil in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated material (ie soil) from site to a distance n. exc 50 m away and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed

Supplying, laying, testing and connecting in replacement XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade, IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified and directed of following sizes

95 sqmm 3 core.

120 sqmm 3 core.

185 sqmm 3 core

240 sqmm 3 core

300 sqmm 3 core

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 80 to 100 mm bore and making good both ends all specified and directed

Supply and lay GI pipe light grade in replacement as cable protection laid on trench/floor, fixed on pole/wall etc of following sizes all as specified of size:- 100 mm dia

All as per item No 11.00 above but of size 80 mm dia

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix in replacement air break switch gang operated tripple pole mechanically operated mechanism, switch air break gang operated mounted on 15 Nos insulator and steel frame with operating rod of 25 mm bore GI Pipe and locking arrangements worked from ground level for current rating 400 Amps, HT 11 KV grade including drop out fuses and necessary silver coper coating jumpers and making all electrical connections complete.

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.25 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized lead wire 4mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanised ironside complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 15 mm bore GI pipe medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode. LOCATION:-SHEKHAWATI ,KARAM VIHAR,COD SEC 2,8,17

M & L for 2 coat of aluminium painting over a coat of red oxide primer to steel surfaces of HT 2/4pole structure (Angle Iron/MS channel /MS clamp etc) including preparation of old surface complete all as specified.

All as per Serial item No 18 here-in-before but 6/8 incoming/outoing feeder

Material & Labour for replacement of jumper/bus bar made of ACSR conductor of existing size on HT Four/Six pole structure having 2/3 incoming/outoing feeder including bus bar with PVC sleeve , lugs , nut bolts and washers complete all as directed.

S&F in replacement Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint on 4/6 pole 11 KV HT structure

M & L for cutting and removing grass, vegetation bushes etc from surrounding 4 pole/6 pole HT structure , outside area of HT installation and removing all rubbish to a distance not exceeding 50 m as directed.

Material and labour for spreading of stone aggregate of nominal size not more than 25mm under 4/6 pole HT structure /surounding area of outdoor RMU manually without damaging any equipments, cable or parts , spreading & levelling of finished gravel uniformaly in layers n. ecc. 15 cm thick watered and rammed to true surface all as specified and directed

Suplying and laying as replacement in sub station fixing 3.3 to 11 KV electrical insulation mat of size 5 mtr x 1 mtr x 3.5 mm thick specification as per IS 15652 2006

Supplying and fixing in replacement male contact/moving contact for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

Supplying and fixing in replacement female contact /fix contact jaw for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

Supplying and fixing in replacement tinned copper flexible jumper 200 Amp/400 Amp for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

Supplying and fixing in replacement MS jumper carrier for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

Supplying and fixing in replacement back connector plate for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

Supplying and fixing in replacement porcelain post insulator for gang operated air break device 11 KV complete all as directed at site by Engr-in-charge.

S&F in replacement for Danger Notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white , with letters, figures and conventional skull and bobes in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT, 25x20 cm size including taking down old one complete all as specified and directed.

S&F in replacement Lightening arrestors expulsion type with all fittings, transmission class, discharge capacity 10 kilo Amps suitable for 11000 volts complete as specified and directed.

Material and labour for Demolition of path /concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and as directed.

Material and labour for Cement Concrete type B-2 mix, 1:2:4 (40mm graded aggregate) 150mm thick, finishing the top surfaces fair and even complete all as specified and as directed.

Dismantling the existing unserviceable (damaged/broken) PCC electric pole of any type and size, from ground after necessary excavation & breaking of concrete foundation & encasing the pole including making good the disturbed surfaces complete all as specified and directed.

Supplying, Errection & Fixing Steel Tubular Pole 410 SP-55 (11 metres long) complete with cast iron base plate all as specified in IS including the followings:- (a) Excavation in post holes in any types of soil, returning filling, well ramming and disposal of surplus soil to a distance not exceeding 50 m from the starting points. (b) Providing PCC (1: 4:8) type D-2 using 40 mm graded stone aggregate as in foundations up to ground level all as specified and directed. (c) Providing PCC (1:2:4) type B-2 using 20 mm graded stone aggregate as in coping including necessary form work all as specified and directed. (d) Painting of Poles with one coat of red oxide primer and one coat of aluminum paint before fixing and one coat of aluminum paint after fixing. The complete embedded portion shall be painted with two coats of black bituminus paint. LOCATION:-6 ENGR Regt

Re-Adjustment, Cleaning of Contact, greasing and testing of out door type Air break switch 11 KV, current rating upto 400 Amps for desired alignment to smooth operation from ground level and replacement of unserviceable parts in position. Note : Replacement of unserviceable parts shall be measured and paid separately under relevant items, complete all as specified and directed

Supplying and fixing (in replacement) anti climbing device, spikes type, fabricated out of mild steel bars of size 16 Sqmm (round, square and flat) including MS Flat 32x6mm, nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete with and including painting with two coats of aluminium paint over a coat of red oxide primer to match it with existing surfaces complete all as specified and directed.

M&L for painting with two coats of superior aluminium paint including necessary preparation of surfaces of steel fencing by brushing/cleaning complete steel structure/frame/ gate for 11 KV transformer/2 pole to 8 pole structure/ HT panels/Sub Station up to 20 Sqmm arera complete all as specified and directed.

M&L for painting with two coat of superior aluminium paint including necessary preparation of surfaces of steel fencing by brushing/cleaning complete steel structure/frame/ gate for 11 KV transformer/2 pole to 8 pole structure/ HT panels/Sub Station above 20 Sqmm arera complete all as specified and directed.

Material and labour for Pre-cast reinforced cement concrete cover slabs for cable duct of any size, Type B1, 1:2:4 mix (using 20 mm graded stone aggregate) with plain fair faces, and suitable size of carrying handle complete all as specified and directed.

Material and labour for PCC 1:3:6 type C-2, (using 40 mm graded crushed stone aggregate) for foundation, filling and mass concrete etc complete all as specified and directed including dismantling of old unserviciable PCC.

Material and labour Brick work with sub-class 'B' bricks, straight or curved on plane exc 6 m mean radius, built in cement mortar 1:6 complete as specified and directed including dismantling of old unserviciable brick work.

Material and labour Rubber Mat 2mtrx1 mtr Length, 19 mm thick, 1.1 kV Grade

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.6 mpa working pressure

Supply only Full face Safety Helmet ISI Marked. Make : Studds/Steelbird/VEGA

Supply only rubber hand gloves ISI Marked suitable for working on HT 15 KV.

Supply only Superior quality anti cut safety hand gloves rubber. Make : Koisa/Spartan.

Supply only safety long gumboot ISI marked with steel toe. Make : Koisa/DUPLON/Waltzer india.

Supply only complete body Solid Men Raincoat. Make : derbenny/Fashion Dream / Wildcraft / New Era.

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge

M/s Adhikari construction co.

Vijay Electricals

mayur enterprises

Buddham Builders

Water Power Engg. Enterprises

MV Engineers And Contractors

Ridhi engineers and builders