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| 1 | NOTE NOS :- The bidders/contractorsare advised to read tender document & all corrigendum/ amendments and General conditions of contracts before entry/quoting the rates. |
| 2 | Supply, install, testing and commissioning of AC 3 phase 50 Hz 315 KVA, energy efficiencylevel 3 as per IS 1180, capacity transformer step down, indoor type 6600/433 volts (at no load) copper wound, oil immersed, naturally cooled with external cooling tubes, core type, delta connected on primary (HV) side and star connected on secondary (LV) side in accordance with vector symbol DYN-11 (vector ground-4) with neutral brought on secondary (LV) side & having tapping in equal steps of 2.5% from (+) 5% to (-)7.5% on primary side by means of hand operated off load tap changing gear, so as to change / correct LT voltage on secondary side conforming to IS 1180 Part-I 2014 including provision of all necessary standard fittings and mainly comprising of the following:-(a) Primary HT side having HT porcelain bushing 3 Nos with brass gun metal bushing rods complete with nuts and washers.(b) One cable box on secondary (LT) side consisting of 4 Nos porcelain bushings with GM bushing rods complete with GM nuts and washers with one No cable gland suitable for reception of outgoing LT PVC sheathed armoured cables.(c) Oil conservator with filter type, drain valve and oil level gauge(d) Dehydrating breather with first fill of dehydrating agent.(e) Explosive vents.(f) Thermometer pocket on tank cover.(g) One No 100 mm dia dial type thermometer vapour pressure type having range 0-120 degree centigrade with temp reading pointer, max temp indicator and resetting device. |
| 3 | (h) Rating plate with terminal markings.(j)Two earthing terminals on tank / tank cover to facilitate fixing of 32x6m GI / COpper earth strip.(k) Oil level gauge(l) Oil drain and filter valves(m) Lifting lugs - 01 Set(n) Under carriage with 4 Nos of plain rollers(o) First fill of transformer oil and results of transformer insulation oil minimum upto 45 KV with 2.5mm gap.Note:- Transformer shall be fixed on new foundation , the same shall be provide as per manufacturers\" recommendation and cost of the same shall deemedto be included in the quoted rate. Accordingly bidder/ tenderer is advised to visit site before quoting his offer and nothing will be paid on this account. |
| 4 | Supply, install, testing and commissioning of indoor type HT 11 KV panel, 630 Amp load break switch and earth switch suitable for 3 phase, 50 Hz and factory fabricated in an approved factory having modern fabrication process powder coated in approved shard having thickness not less than 100 microns provided with suitable gasket to make it dust / vermin proof. The Air type load break switch a simple and compact construction with epoxy insulators, double switch blades, forged contacts with arc quenching camber, lagging pin and loop less current path and RMU type configurations, complete with tripping initiation by means of fuses, the dry type arc quenching chambers join two switch principle for safe disconnections of heavy and small current, conforming to IS-9920 complet all as specified and directed |
| 5 | Excavation in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth for taking out pipe line etc for repairs / laying of cables etc and getting out in soft /loose soil complete all as specified and directed by Engr-in-Charge. |
| 6 | Returning filling in including spreading, levelling, watering and well ramming in layers not exc 25cm thick complete all as specified and directed by the Engr-in-Charge |
| 7 | Removing excavated materiasl not exc 50 mtr and depositing where directed at a level next 1.5mtr above the starting point complete all as specified and direced by the Engr-in-Charge |
| 8 | Material and labourfor Sand cushioning to the full width of trenches for protection of cables including punning down complete all as specified. Note :- Thickness of sand cushioning shall be the thickness after punning down. |
| 9 | Material and labour for Boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine including HDPE pipe of 150mm dia suitable for 0.4 mpa working pressure complete all as specified and directed |
| 10 | Supply and laying unreinforced precast concrete cable cover, factory made, Class HV, type - 1, size 300mmx l80mm x 40mm in trenches for cable protection, embossed with \"ELECTRIC\" on the top surface complete all as specified and directed. |
| 11 | Supply, laying, jointing and testing of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts Earthed grade , lay in trenches, ducts, along pole, along Transformercross sectional area 95 sq. mm 3 core complete all as specified and directed. |
| 12 | Supply, installation, testing and commissioning of factory made powder coated (CPRI approved) outdoor type, dust & vermin proof feeder pillar box made out of 3.15mm CRCA steel sheet of suitable size and angle iron 40 mm x 40mm x 6 mm , powder coated over one coat of red oxide primer suitably grouted in PCC-M10 using 20 mm graded stone aggregateincludingbus bar, internal wiring with PVC insulated single core cables of copper conductor of suitable size duly numbered with tags for the circuits with hinged double door shutters (front & rear), cubical type locking arrangement and slanted roof. The size of panel boards shall be suitable for housing the accessories given here under and also suitable for operation on AC 415 Volt, 3 phase, 50 Hz supply systemincluding disconnecting of electricconnection both incoming & out goingfrom existing unsv indoor/outdoor feeder pillar boxes/busbar enclosers and unsv accessoriesand taking out panelfrom the foundation . The panel board shall comprise of following items & all specified in SSR Part-I clause no 19.21 and all as shown on drawing .Note: Cost includes necessary internal wiring for meters, CTs, indication lamps etc and Rigid bus bar connections from bus bar to MCCB terminals connections Bus to MCCB / MCB connections.Incoming(i)4 strip copper bus bar of rating 1.5 times current carrying capacity of incoming switch gear or not less than 200 Amp whichever higher(ii) MCCB FP, 415 V, 36kA, 400 Amp -01 NosOutgoing(i) Outgoing MCCB FP, 415 V, 25kA, 200 Amps - 01 Nos(ii) MCCB FP, 415 V, 25 kA, 100 Amps - 02 Nos (01 x Spare)(iii) MCB TPN, 415 V, 16 kA, 63 Amps - 02 Nos (iv) MCB SPN, 230 V, 10 kA, 32 Amps - 02 Nos (v) Voltmeter (0-500) volt with selector switch - 01 No(vi) Ammeter with CTs (0-800) Amps with selector switch - 01 No(vii) Indicator lamp - 01 set of three(viii) Multi function meter 01 Nos CT as per incoming rating |
| 13 | Material & Labour for earthing with galvanised steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level,connected to the galvanised earth lead by means of bolts, nuts check nuts and washers of galvanised iron or steel using GI strip 32x6mm as earthing lead as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation andearth work insoft/loose soil, returning filling, disposal of surplus soil, earth pit inPCC 1:3:6 type C-1 using 20mm graded stone aggregatepit, funnel,20mm dia GI medium grade watering pipe, 40mm dia GI medium grade earth lead protection pipe, CI frame and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternatee layer and including taking down existing one complete all as specified and directed . |
