82615/E8 REPAIRS/MAINT OF HT DISTRIBUTION SYTEM SUCH AS TRANSFORMERS OF CAPACITY 500KVA AND 630 KVA VCBs HT CABLES TWO FOUR POLES STR AND OTHER ALLIED WORKS AT 17 FBSU AND ITS LEDGER UNITS AND HQ SAC U UNDER GE AF TRIVANDRUM

Amount

Repair / preventive maint of HT 11 KV VCB / RMU / LBS by cleaning all the internal external parts using high power blower ,checking all the relays function, Vacuum pressure, R,Y,B insulation resistance values, check Auto / Manual operation of RMU and open/ closed / moving mechanism etc and perform PRIMARY INJECTION test and SECONDARY INJECTION Test ,checking of earthing resistance ,checking of all internal wiring from sensing elements, protection relays, isolators etc and replace the damaged wiring of existing size with proper color coding, numbering as per manufacturers recommendations using copper lugs and thimbles and checking of earth resistance for the under mentioned HT breakers all as directed by Engineer in charge for the following switch gears:- NOTE:- (a)Testing equipment for Primary / secondary injection kit with valid calibration certificate ,5KV Megger for insulation test & Earth resistance meter shall be arranged by the contractor at his own cost (b)The contractor shall approach JE/AGE for proper shutdown before commencement of the job (c) All the unserviceable spare parts such as relay , battery CT / PTs moving mechanism etc shall be measured and paid under the respective items. (d) All the testing should strictly done through OEM or OEM authorised company and approved should be taken Engr- in -charge for following (e) The Contractor shall visit the site for ascertaining the makes/models/cat Nos of spares before placing purchase order. The existing spares shall be replaced with the same make as available at site.The quoted rate shall include the cost of removal of old / existing item.

Ring Main Unit (Four way) with one number VCB as incomer and three numbers load break switch for outgoing of 11KV, 630A, 21KA installed in Vayu vihar SS all as specified and directed. Make :- ABB

RMU 11 KV 3WAY , 630A, 21KA installed in Chitralekha Complex SS all as specified and directed. Make:- ABB

Three way Ring Main Unit in compact sub station with one number VCB as incomer and two numbers load break switch for outgoing of 11KV, 630A, 21KA installed in HQ SAC SS all as specified and directed. Make:- ABB

Indoor type HT Panel consisting of 03 Nos VCBs of capacity 12KV,630A, 21KA installed in HQ SAC SS. Make :- Crompton Greaves

Seven way Ring Main Unit with one number VCB as incomer and six numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 17 FBSU MRS all as specified and directed. Make SIEMENS

Three way Ring Main Unit with one number Load Break Switch as incomer and two numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 17 FBSU computer cell SS all as specified and directed. Make SIEMENS

Four way Ring Main Unit with one number Load Break Switch as incomer and three numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 17 FBSU MAP SS all as specified and directed. Make SIEMENS

Three way Ring Main Unit with one number Load Break Switch as incomer and two numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 17 FBSU Offrs Mess SS all as specified and directed. Make SIEMENS

Four way Ring Main Unit with one number VCB as incomer and three numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 257 SU Mukkunnimala Domestic Area SS all as specified and directed. Make SIEMENS

Five way Ring Main Unit with Two numbers VCB as incomer and three numbers load break switch for outgoing of 11KV, 630A, 21KA installed in 257 SU Mukkunnimala Tech area SS all as specified and directed. Make SIEMENS

One way Ring Main Unit with one number VCB / load break switch for outgoing of 11KV, 630A, 21KA installed in Mutthathara indoor SS all as specified and directed. Make SIEMENS

S&F in replacement 11KV Cast Resin Current Transformer (CT) suitable for indoor application Ratio 10/5A Class 02S Burden 10VA as per IEC 61869-2:2012, BIS 16227-2 as per KESB specification IL 12/28/75 KV ,STR :13.1 KA /sec

S&F in replacement 11KV Cast Resin Potential Transformer (PT) suitable for indoor application Ratio 10/5A Class 02S Burden 25VA as per IEC 61869-3:2011, BIS 16227-3 as per KESB specification IL 12/28/75 KV ,STR :13.1 KA /sec

S&F spring charge motor operates on 230 V ,50Hz AC supply suitable for above RMU panels

S&F dry cell battery 12 V 40 AH of existing make suitable for existing RMU panels

S&F microprocessor based relay unit for proper tripping of breakers complete all as directed. Make:- C&S/Schneider/L&K or its equivalent

S&F mechanical moving operating mechanism unit for smooth functioning of breakers complete all as directed.

S&F HT 11 KV Bushes suitable for connecting cable end terminations complete all as directed

S&F VCB Drive mechanism for L feeder of complete set suitable for 630A capacity RMU, 21KA, 11 KV including all necessary components, spring, gears and linkages, complete with all accessories suitable for existing model. Make :- Siemens Model No L 30023485 (at Mukkunnimala Dom.SS)

S&F RMU battery charger 24 V/10A suitable for RMU make Siemens (Mukkunnimala Dom.SS)

S&F RMU protection relay unit suitable for RMU VC. Make:- Siemens

S&F RMU Voltage presence indicator system (VPIS indicator) suitable for RMU. Make : Siemens (Mukkunnimala Dom.SS)

S&F 11KV cable boots suitable for RMU/VCB. Make:- Siemens

S&F dry cell battery 12V 7 AH of existing make suitable for existing RMU panels

Attending, Repairing/restoring of electric power supply in HQ SAC and its lodger Unit area, after identifying fault in HT 11 KV or LT 1100 volt system, RMU,VCB, two/ four pole structure, transformers, Over head lines in any section or circuit, including checking of insulators, lightning arresters, GODs, dropout fuses and all electrical accessories and making it serviceable in all respect including replacement of nut, bolt, washers and minor parts/spares, insulation tapes and cable sockets of any size including checking, identifying and rectification of LT/HT UG Cable faults at AF Area as and when directed. Note:- Items required for rectification work shall be measured and paid separately under respective items .

M&L for preparation of old painted body surface of following HT indoor/out door RMU/HT Meter panel by spray painting with two coats of synthetic enamel paint as per existing colour and writing SM / MES NUMBER /DATE OF INSTALLATION complete all as specified and directed.

RMU 4 way at Vayu vihar SS .

RMU 03 ways at Chitralekha Complex SS.

RMU 03 ways including compact sub station at HQ SAC SS.

HT panel 3 ways at HQ SAC SS.

Compact substation 200 KVA incl HT/LT side

RMU 07 way indoor/out door RMU/HT Meter panel at 17 FBSU

11 KV RMU 05 way at 17 FBSU

11 KV RMU 04 way at 17 FBSU

11 KV RMU 03 way at 17 FBSU

S&F in replacement of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy-duty) with aluminium conductor, 11000 volts Earthed grade, 3 core, cross sectional area 95 sqmm including removing of old U/S cable all as specified and directed by the Engr-in-Charge

All as per srl item No. 17 here-in-before but for size 120 Sqmm .

All as per srl item No. 17 here-in-before but for size 150 Sqmm .

All as per srl item No. 17 here-in-before but for size 185 Sqmm .

Excavation in trenches in hard/dense soil not exceeding 1.5m wide and not exceeding 1.5 metre in depth for laying of cable and not exceeding 10 Sqm on plan for poles, struts, stays etc. and not exceeding 1.5 m in depth and getting out complete all as specified and as directed.

Returning and filling of trenches in two parts ie (i) using riddled soil obtained from excavated soil upto depth of 30cm (8cm below cable and remaining above cable) for cushioning of cable and (ii) refilling the remaining depth of trench with normal excavated soil all as specified and directed. Note :- Excavated soil shall be riddled by using sieve to separate composite particles etc as per IS 1255-1983 and refill in trenches as in cable cushioning.

Removing excavated material (soil) to a distance n.exc 50 mtrs and depositing where directed at a level n.exc 1.5 mtr above the starting point all as specified and as directed.

Supplying and laying in replacement reinforced precast concrete cable cover, HV Type 1, flat, size 300mmx l80mm x 40mm all as specified and as directed.

Supply transformer oil, low viscosity insulating oil for top up transformer of as per IS-335, complete all as directed. Make : Transol (Savita) / Indian Oil / Bharat Petroleum.

Material and labour for testing the dielectric strength of transformer oil of the transformers installed at various sub station at/on floor/pole before dehydration and dehydrating and filtering the transformer oil with dehydration machine to achieve dielectric strength of the oil upto 50 KV at 2.5mm gap/ as per IS standard, complete all as directed. Note:- The transformer dehydration machine and dielectric strength testing machine shall be arranged/brought by contractor at site at no extra cost and quoted rate is inclusive of all these provn.

Supply & filling Chemical Grade Crystals Transformer Silica Gel.

Supply and jointing of cable jointing kit in replacement for 11000 volt (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 size 120 sqmm to 185 sqmm all as specified and directed.

Supply and jointing of Cable end termination 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 size 120 to 185 sqmm all as specified and directed.

Supply and installation of Pre-stressed concrete pole, 11.0 metres long of size 152mm x 152mm at top and 152mm x 260mm at bottom, class 9 including taking out existing pole complete all as specified and as directed. Note :- Excavation, earth work & PCC etc shall be measured and paid separately under relevant item. The rate include staying the pole in a truly vertical position till the foundation are properly set.

M&L for Plain cement concrete (1:4:8) type D-2 using 40mm graded stone aggregates as in foundation of poles including finishing to exposed concrete surfaces even and fair incl provision of necessary form work for rough finished surfaces complete all as specified.

M&L for Plain cement concrete (1:3:6) type C-1 using 20mm graded stone aggregates as in coping including finishing to exposed concrete surfaces even and fair incl provision of necessary form work for rough finished surfaces complete including demolition of old damaged pole copings all as specified and directed.

Supply and lay in trenches/under roads /crossings or fixed to wall / pole, GI tubing light grade of size 80mm for protection of UG cables including taking out old unserviceable pipes. Note : Excavation and earth work shall be measured and paid separately under relevant items of Schedule/BoQ.

M&L for Earthing complete with Galvanised Iron earth plate electrode 60cm x 60cm x 6mm thick, buried directly in ground (earth pit not less than 2.25 metre deep below ground level) with top edge of plate not less than 1.5 metre below ground level, connecting GI strip of size 25mm x 4mm from earth plate to body of the equipment/LT Panel by means of bolts, nuts, check nuts and washers of galvanised iron or steel, 40mm bore GI light grade pipe for protection of earth lead from earth plate (6 mtrs long), 20 mm GI medium grade watering pipe, PCC 1:3:6 type C-2 (using 40mm graded stone aggregates) as in earthing pit, PCC cover, charcoal or coke & salt filling and necessary excavation and earth work and all other relevant works including testing all as specified and shown in electrical plate No.3 of MES Schedule part-I. including taking out existing earthing complete.

Supplying and replacement of synthetic Rubber insulated mats 2.5mm thick of size 2m x1m for voltage up to 11KV for electrical purpose as per IS 15652-2006 (Superseding IS 5424) suitable for electrical shock safety all as specified and directed.

Checking of transformer capacity 100 KVA located at Rameshwaram by disconnecting HT and LT side cable, Tightening HV,LV Lead and cable connection and repair/replacement of unserviceable items, cleaning of Transformer and commissioning including oil filtration to achieve desired dielectric strength complete all as specified and directed.

S& F in replacement of Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp

Supply and in replacement of HV bush collar type suitable for transformer capacity 63 to 160 KVA complete all as specified and directed

All as per item No.38 above but of capacity 200 to 315 KVA complete all as specified and directed

All as per item No. 38 above but of capacity 400 to 630 KVA complete all as specified and directed

S&F in replacement of oil level glass made of transparent FRP sheet 4 mm thick with suitable nuts/bolts complete all as specified and directed

S&F in replacement of Temperature gauge for Transformer analogue type upto 100 degree complete all as specified and directed. Make: Voltec, KI/ Honey well

S&F in replacement of top cover Gasket 6 mm made of cork sheet for transformer capacity 63 to 160 KVA complete all as specified and directed

All as per item No. 43 above but capacity 200 to 315 KVA complete all as specified and directed

All as per item No. 43 above but capacity 400 to 500 KVA complete all as specified and directed

Supply and fix in replacement of breather assembly for distribution transformer 11 KV / .433 KV made out of aluminium body with acrylic cover with suitable size of GI nipple and silica Gel of capacity 1/2 Kg for Transformers upto 250 KVA crystal colour Blue. complete all as specified and directed

All as per item No.46 here in above but of capacity above 250 KVA and less than 500 KVA

Supply and fix in replacement GI plated MS nut bolts 1 inch length and 8 mm dia complete all as specified and directed

M&L for preparing old painted surface of transformer of outdoor / indoor type of capacity 63 KVA to 100 KVA, any type, description by cleaning dirt, oil, grease etc, removing the old paint, rust by scraping existing paint using a heat gun or a chemical stripper etc, after disconnecting HT/LT electric connection from both primary and secondary side of transformer and apply two coat of synthetic enamel spray paint of existing colour on out side body of the transformer and writing of letter HT/LT and SM MES No etc of cm height and making all HT/LT electric connections and testing the same , complete all as directed. Note:- The compressor and spray machine etc shall be arranged / brought by contractor at site and no extra cost shall be paid to the contractor in the effect.

All as per srl item No. 49 here-in-before but for transformer capacity 160 to 315 KVA.

All as per srl item No. 49 here-in-before but for transformer capacity 400 KVA to 500 KVA.

All as per srl item No. 49 here-in-before but for transformer capacity 630 KVA.

Supply and fix HT/LT cable route indicator made out of round CI embossed plate 100mm dia 6mm thick duly riveted with angle of size 40 x 40 x 6mm and 60cm long incl PCC for embedding 1:4:8 type D2 of size 30cmx30cmx30cm including taking out existing one.

Supply, spread, rolled and consolidated to required gradient and chamber of gravels 20 to 25mm sie for (average) 75 mm thick, including removal of existing gravel complete all as directed. Note:- The quoted rate shall inclusive of making clear 2 mtr wide area along side by side of fencing before spreading of gravels.

Dismantling air break gang operated with drop out unit off capacities switches vertical/horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators complete all as directed by Engr In Charge.

M & L for Air brake switch gang operated triple pole, mechanically operated 11000 Volts, mounted on insulator and steel frame. With operating mechanism worked from ground level, for current rating upto 400amps and GI pipe with suitable length to operator from ground including locking arrangement all as specified. Note:- GI handle with rubber insulation with stand suitable for 22KV to be provided for manual operation from ground level.

Supply and Install test and commission HT 11KV 160 Amps drop out fuses suitable for three phase 11 KV system with porcelain insulator (shackle type insulator) polymeric insulator with necessary GI nut, bolts and washers all as specified and as directed.

M&L for cross arms, bracings, supports, clamps, angle iron, flats and back plates fabricated from MS structural steel sections including nuts, bolts and washers of suitable sizes including welding, bending (cold or hot), drilling holes for bolts in any shape or size as indicated or directed and inclusive of two coats of aluminium paint over one coat of red oxide primer, complete all as directed.

Disconnecting HT /LT connection from 100 KVA transformer outdoor type 11 KV/.43 KV, 3 phase , 4 wire system from PCC platform inside with support of crane/ hydra machine carefully, transportation upto authorised work shop for repairing / replacement of old burnt out winding & rewinding the same with insulated copper bounded conductor of same size turn with class -H Insulation and assembling back as per Manufacturer specification and taking back to site after successfully repairs / testing of transformer all as specified. Note:-The rate shall be included for transportation, testing, meggering , disconnecting and reconnecting to the existing load.

All as per item No.59 above but for 160 KVA capacity transformer

All as per item No.59 above but for 250 KVA capacity transformer

S&F in replacement of transformer tap changer made of copper suitable for transformer of capacity 100 KVA

All as per item No.62 above but of capacity 160 KVA

All as per item No.62 above but of capacity 250 KVA

All as per item No. 62 above but of capacity 400 KVA

S& F in replacement fully reflective sign board of size 1200 x 900 mm , made out of SS sheets of 18 gauge surrounded by 80 mm square pipe of SS grade SS-304 and computer printed letters in radium materials of high not exceeded 30 cm each or any kind like block roman/ italic/ Indian framed SS pipe imbedded in wall / pillar of gates, fixing with using suitable capacity base plate , cement concrete 1:4:8 where as reqd and suitable capacity fasteners to wear the load of boards in wall. Note:- Rate quoted shall include for the proper and strong fixing of boards in wall / existing gate pillars with considering wind pressure of the area. No extra payment will made to this effect if any damages will happened.

S& F in replacement fully reflective sign board of size 900 x 600 mm , made out of SS sheets of 18 gauge surrounded by 50 mm square pipe of SS grade SS-304 and computer printed letters in radium materials of high not exceeded 30 cm each or any kind like block roman/ italic/ Indian ( approximate letter exceed 30 and exceeding 100 in nos) framed SS pipe imbedded in ground 60 cm by making holes 70 cm deep and 150 mm dia fixed with using cement concrete 1:4:8 and 90 cm above ground level (upto bottom of board) incl necessary excavation, RFR, removing of surplus soil for E/M installation all as directed by Engr In Charge. Note: The rate quoted by the tenderer is also deemed to be include for necessary earth work , PCC etc. and nothing shall be paid extra in this account.

S& F in replacement acrylic sign board of size 600 mm x 600 mm thickness not less than 5 mm , including writing letter of height not exc 8 cm each (Name of plant, capacity, make, model, Mfd years, SM & MES No.) any kind like block , roman, italic, Indian , stop, commas, short line, dashes, hyphens, bracket etc and fixing of wall near the plant as directed by Engr In Charge

M&L for finding out the HT 11KV cable fault using HT CABLE FAULT LOCATOR machine with skilled tradesman of any sizes and remove the cable joint from under ground for fault rectification all as directed. Note:- (a) HT CABLE FAULT LOCATOR shall be arranged by the contractor at his own cost. (b) Earth work and cable jointing kits will be measured and paid under respective items of the schedule.

M&L in replacement for Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size in HT poles/ walls & HT panels for HT, 25x20cm size all as specified and as directed.

M&L in replacement for anti-climbing device; spikes type fabricated out of M.S. bars (round, square and flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole all as specified.

Attending, Repairing/restoring of electric power supply in 17 FBSU and its lodger Unit area, after identifying fault in HT 11 KV or LT 1100 volt system, RMU,VCB, two/ four pole structure, transformers, Over head lines in any section or circuit, including checking of insulators, lightning arresters, GODs, dropout fuses and all electrical accessories and making it serviceable in all respect including replacement of nut, bolt, washers and minor parts/spares, insulation tapes and cable sockets of any size. The work also include checking, identifying and rectification of LT/HT UG Cable faults at AF Area as and when directed Note:- Items required for rectification work shall be measured and paid separately under respective items .

om sai enterprises (BID ID -3491733)

MAYUR ELECTRIC SERVICES (BID ID -3493154)