REPAIR AND MAINTENANCE TO HT CABLE INCLUIDNG JOINTS , TRANSFORMER/RMU PLINTHS, FENCING, HT BUS BAR CHAMBER AND CONNECTED ITEMS AT CARRIAPA VIHAR, 105 TA, 1 WEC, EETSU, DAS, POLO GROUND TODAPUR KHANDHAR LINE, EME WORKSHOP, LORRY ROAD PUMP HOUSE, RR CO

Amount

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

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 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

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.

All as per srl item No 5 here-in-before but using old cable cover obtained under srl item No 1 here in before.

Supplying, laying, jointing 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.

150 Sqmm 3 Core

185 sqmm 3 core

240 sqmm 3 core

300 sqmm 3 core

Boring of hole under road, pavement, hard standing by trenchless technology using ultra sound technique and any other necessary machine including material and labour for HDPE pipe of 150 mm dia suitable for 0.6 mpa working pressure.During boring work,hard rock may appear as the site is a hilly terrain any damage to the trenchless machine or any other machine will be in the scope of contractor. The contractor should take the permission from the NHAI, GAIL , BSES , MTNL , Army and other concern authority for boring is mandatory prior to initiation of work. . If any of the services get damage during trenchless work the cost of repairing/replacement of the same is deemed to be included in the quoted rate by the contractor.

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 100 to 150 mm bore and making good both ends all specified and directed

S&F in replacement GI Pipe (light grade) with necessary accessories/ fittings for cable protections/pole for crossing of culverts/nallah of following bore sizes

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.

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

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.10 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32 x 6mm 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 40 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.

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 sprading 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 complete all as directed by Engr-in-charge

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron/Okaya

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.

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, RMU/ HT panels/Sub Station upto and including 70 Sqm area complete all as specified and directed.

Supplying and fixing (in replacement) 3.15 mm dia MS wire 75x75mm mesh, made upto into mattress or cages appx 2.00 m height and fixed with flat iron/angle as per existing by welding in position complete all as specified and directed

Material and labour for two coats of synthetic enamel paint of silver colour on steel surfaces over a coat of red oxide primer including preparation of surfaces complete all as specified.

Taking out faulty underground 11000 Volt HT cable of different sizes by excavation and removing PCC cover of any size and relaying in the same trenches or re routing after rectification of fault or replacing faulty portion of cable with new cable and removing of surplus soil and using new bricks as required. Note: (a) 11000 Volt HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable PCC cable cover will be laid in trenches for cable protection. If extra bricks and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

M&L for Retro Reflective installation sign board of size 12 Feet x 2.5 feet using 3 mm ACP sheet duly riveted / fixed on fabricated stainless steel 304 grade finished hollow section of size 25mm x 50mm with supporting ss strips in base at a height of 7.5 meter above ground level on stainless steel 304 grade pipe of size 80mm embedded 90 CM in PCC 1:2:4 type B 1 block of size 45cmx45cmx90cm including necessary excavation and earth work . The board shall be machine printed and the front of the ACP shall be overall sheathed with blue colour base adhesive tape. The writing matter shall be in English language on both side using reflective adhesive Painter tapes as directed. The size and letters and matter to be printed shall be finalized by Engr-in-Charge.

Supply, installing, testing and commissioning in replacement of factory made and tested HT Panel board, size: 1200 mm x 1200 mm x 900 mm ,cubical compartmentalized , out door type double door, suitable for 11000 Volts, 3 phase, 50 HZ AC supply system having bus bar chamber with insulated aluminium bus bars of size ,50 mm x 10 mm, 3 Nos installed on SMC insulators suitable for 11000 Volts .The panel shall be dust and vermin proof. IP-65 class protection and shall be made of 3.15 mm CRCA MS sheet, and 50x 50 x 6mm thick MS angle iron frame work, powder coated front and rear opening type, with apron for cable entry closing locking . The fixing of double doors shall be on MS hinges with anti-theft provision (the door can’t be removed from enclosure without cutting enclosure). including excavation, earth work and platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, 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 sotne aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level complete all as specified and directed by Engr-in-charge.

Disconnecting electrically & mechanically outdoor transforemrs upto 630 KVA capacity, lowering down/getting out from existing plinth 4/6 pole sturucture carefully for repairing /making of plinth of transformer and re- connecting electrically and mechanically after repairing/making of plinth , testing and commissioning complete all as specified and directed. Note:- (a) Rate is deemed to be inclusive for hydra , men power, and other items required for temp energization of transformer. (b) Plinth work shall be measured and paid separetely under items of sch of work here-in -after.

M&L for construction of brick masonry platform for Transformer of size 3.0m x 3.0m and total height 1.40 m (0.40 M below ground level and 1.0M above ground level including excavation and earth work ) with brick construction in wall and steps, using TMT bars 10mm thick to the distance of 0.15 mtr on the platform from both sides, PCC 1:3:6 type C-2 in foundation, brick work in CM 1:4, 15mm thick rendering in CM 1:4 on fair face of walls and steps, 100mm thick PCC 1:2:4 type B-2 (using 40mm graded crushed stone aggregate) in floor and paving, 40mm thick PCC on steps, and MS channels ISMC-75 of size 3 mtr (02 Nos) beneath the TMT bar on the platform for better support with painting to foundation and steps complete all as specified and directed by Engr-in-charge.

Supply & fixing in replacement of cable boot 11 KV in 630 Amps RMU, 7/5/4/3 way complete all as specified and directed by Engr-in-Charge.

Supply and Installation of HT 11 KV CT operated Trivector Meter with the following specifications:- (a) Meter Type: HT 3 Phase 4 Wire Electronic Tri vector Meter (b) Standard: IS 14697:2021 (c) Accuracy: Class 0.5 (d) Voltage and Current rating:- (i) Reference Voltage - 3 x 415 V (ii) Basic Current (Ib) - 1 A (iii) Maximum continuous current (Imax) - 2 A (e) Rated Frequency (variation) - 50Hz (±5%) (f) Power consumption:- (i) Voltage circuit: Less than 1.5 W and 10 VA per Phase at reference voltage, reference temperature and reference frequency (ii) Current circuit: Less than 1 VA per phase at basic current, reference frequency and reference temperature (g) Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height (h) Display in the event of Power Failure: Internal battery back-up for LCD display (j)Communication port: (i) Galvanically isolated Optical Communication port for data transfer through either CMRI or remote device or both is provided (ii) RS 485 for DLMS protocol (iii) Energy recording - Unidirectional

Supply and fixing isolator aluminium Pad Clamp suitable for 11 KV transformer upto 630 KVA capacity as required on site 10 mm to 15 mm thick complete all as specified and directed by Engr-in-charge

Supply and fixing mild steel chequered plates Fe410-W (Gde-E-250) quality on cable duct pit sizes as required on site 6mm to 10 MM thick including taking out of old unserviceable RCC duct cover complete all as specified and directed.

(c) Platform of Panel. Platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, 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 for panel. The platform shall be such that it is of a height 45 cm above the nearest road level. Note :- (i) All out going feeder shall be connected by cable through suitable size gland plate / glands. (ii) The various feeders shall be indicated by 50 mm size letters in synthetic enamel white paint. (iii) All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947/IS 13947/Pt.II/1993 (Latest Version). The MCCB should have Ics=100%Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacturer

Supply and fix cable route indicator made of RCC(Nominal mix) type BO 1:2:4 (12.5 mm graded stone aggregate) with 8 mm TMT Bar 1.5 M height x 60 cm wide x 10 mm thick tapered on top visible above ground duly painted with synthetic enamel paint of Blue colour base and letters with black paint. The description for writing for HT cable 11000 volts will be given by Engr-in-charge/Accepting officer complete all as specified and as directed.

Supply, installing, testing and commissioning in replacement of factory made and tested (including CPRI type tested certified panel) LT Panel board ,cubical compartmentalized , out door type double door , mounted on angle iron legs 50x50x6mm thick, suitable for 415 volts, 3 phase, 4 wire, 50 HZ AC supply system accommodated with 01 No ACB 4 pole, 800 Amp, 50 KA, 415 Volt AC Horizontal draw out type motorized, front operated with Microprocessor based LCD protection release for adjustable over current, short circuit and earth fault protection fitted with aluminium bus bar link 1200 Amps for incoming and outgoing cable connection. The panel shall be dust and vermin proof. IP-65 class protection and shall be made of 3.15 mm CRCA MS sheet, and 50x50x6mm thick MS angle iron frame work, powder coated finish over one coat of red oxide primer on outside surface and painted inside with two coats of red oxide primer, front and rear opening type, with apron for cable entry closing locking arrangement . including excavation, earth work and platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, 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 sotne aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level.

M&L Brick work with sub-class 'B' bricks, straight or curved on plan exc 6 m mean radius, built in cement mortar 1:6 complete as specified and directed.

M&L Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar (1:4) finished fair and even without using extra cement complete as specified and directed.

M & L for PCC 1:3:6 type C-2 (using 40 mm gradded aggregate) for foundation, filling and mass concrete etc complete all as specified and directed .

M & L for cement concrete type B-1, 1:2:4, 50 mm thick (using 20 mm gradded aggregate) for floors and paving etc complete all as specified and directed.

M&L for Retro Reflective installation sign board of size 4 Feet x 2.5 feet using 3 mm ACP sheet duly riveted / fixed on fabricated stainless steel 304 grade finished hollow section of size 25mm x 25mm with supporting ss strips in base at a height of 2.5 meter above ground level on stainless steel 304 grade pipe of size 50 mm embedded 75 CM in PCC 1:2:4 type B 1 block of size 45cmx45cmx75cm including necessary excavation and earth work . The board shall be machine printed and the front of the ACP shall be overall sheathed with blue colour base adhesive tape. The writing matter shall be in English language on both side using reflective adhesive Painter tapes as directed. The size and letters and matter to be printed shall be finalized by Engr-in-Charge.

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 JAIMAA ASSOCIATES

MV Engineers And Contractors

Microsys Controls India

M P TYAGI ENGINEERS AND CONTRACTORS

mayur enterprises

Rajindera Enterprises

DS CONSTRUCTION