SPECIAL REPAIRS/REPLACEMENT OF MAIN HT CABLE FROM TPCDL GRID 33/11 KV SUBSTATION TO SOLAPOKHARI PUMP HOUSE SUBSTATION AND SPECIAL REPAIRS/REPLACMENT/ REROUTING OF HT 11 KV CABLE FROM KV CHILKA TO INHS NIVARINI SUBSTATION AT INS CHILKA

Amount

Taking out the existing defective 3 core 185 sq mm HT cable from trenches / poles / drains / under roads / railway crossing and including cable covers / GI protection pipe, CTs from RMU panels and laying only serviceable cable covers on cable whereever required complete all as specified and directed.

Supply, laying and testing cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 11000 Volts grade, of size 3 core 185 sqmm complete all as specified and directed.

Supply, laying and testing cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade of size 3.5 core 95 sq mm complete all as specified and directed.

All as per Sl. Item No. 3 above but 3.5 core 70 sqmm

M&L 100 mm bore galvanised iron light grade for cable protection and sealing both ends complete all as specified and directed.

M&L cable jointing kit for 11 KV grade cable for straight through heat shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured, aluminium conductor cable of size 120 to 185 Sqmm complete all as specified and directed.

M&L cable end jointing kit outdoor termination heat shrinkable type complete with jointing materials with all accessories suitable for XLPE 11 KV (earthed), 3 Core, armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete all as specified and directed.

M&L cable end jointing kit indoor termination heat shrinkable type complete with jointing materials with all accessories suitable for XLPE 11 KV (Earthed), 3 Core, armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete all as specified and directed.

M&L cable route indicator of cast iron for HT cable with 35 x 35 x 4 mm and including with necessary MS angle iron post 0.5 m long and embedded on pre-cast PCC 1:3:6 type C1 of size 150 x 150 x 300 mm complete all as specified and as directed.

Supply and erect prestressed concrete pole, 11.0 m long. 152 mm x 152 mm at top and 152 mm x 260 mm at bottom, class 9 and including dismantling complete all as specified and directed.

Supply and erect steel tubular sewaged poles, complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 (11 m long) and including applying two coats of black bituminous paint internally and externally from bottom end of pole upto PCC coping and applying two coats of aluminium paint over a coat of aluminium primer externally from top of coping and dismantling complete all as specified and directed.

M&L cross-arms, bracings, supports, clamps and back plates fabricated from structural steel sections and including nuts, bolts, washer, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated / directed and inclusive of two coat of aluminium paint over a coat of primer and including dismantling complete all as specified and directed.

S&F Switch air break gang operated (polymer type) for 11 KV grade, triple pole vertically mounted on insulator and fitted on steel frame, current rating 400 Amps, mechanically operated mechanism from ground level consisting of operating rod of GI pipe 25 mm bore (dia) ‘light grade’ of suitable length worked from Ground Level and with locking arrangement mild steel flat iron clamp 50 x 6mm and DO fuse and including dismanting old unserviceable switch air break of any description, complete all as specified and directed.

S&F lightning arrester expulsion type complete with all fittings transmission class discharge capacity 65 KA suitable for working pressure 11000 Volts and including dismantling of old unserviceable and connection to earth with GI 32 x 6 mm strip complete all as specified and directed.

M&L earthing with Galvanised Steel earth plate electrode 60 cm x 60cm x 6 mm thick buried directly in ground vertically at a depth not less than 2.25 m below normal ground level with top edge of earth plate at a depth not less than 1.5 m below normal ground level, earth plate surrounded from all sides by 15 cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using GI strip 32 x 6 mm as earthing lead (upto the test point) by means of bolts, nuts, check nuts and washers made of galvanised iron, thimbles and protected by light grade 40 mm bore GI pipe connected upto test point and GI pipe light grade 20 mm bore for watering and including funnel, wire mesh, RCC pit cover and PCC chamber pit with PCC (1:3:6) type C-2 using 40 mm graded stone aggregate including necessary excavation and earth work in any type of soil, returning, filling in approved soil and disposal of surplus soil to a distance n. exc. 50 m all as specified and shown in electrical plate No. 3 of SSR 2009 (Part-I) complete all as specified and directed. Note: The quoted rate is deemed to be include for dismantling of 06 Nos. earthing in this item.

Supply, installation, testing & commissioning of factory made 11 KV, 630 Amps, 21KA for 3 Seconds, AFLR, SF6 insulated, manual, outdoor 3 Way RMU consisting of 1 No. load break switch as incomers and 2 Nos. of load break switch as outgoing and including comprise of the following complete all as specified and as directed :- Note: The RMU should be manufactured at OEM factory only. The make of all connected items shall be the make as per Ring Main unit.

[A] RMU shall be 11 KV, 630 Amps, 21 kA for 3 Seconds, Internal Arc 21KA/1Sec, AFLR, SF6 Insulated, Manual, Outdoor, 3 Way RMU, Left side Extensible, Right Side Metering Unit, SCADA compatable Overload and earth fault protection Relay (Ashidha / CSPDR) with Air Insulated Bus Connected Metering unit (Type +CCC+), Type tested in line with latest IEC Standards, suitable for operations at a height up to 1000 Meters above sea level and at 40ºC ambient temperature, switchgear and busbar shall all be contained in a stainless steel enclosure [2.5 mm thickness SS304], nominal operating gas pressure 1.3 bar @ 20 deg centigrade, RMU tank shall provide full insulation and switchgear shall be insensitive to the environment with degree of protection of IP67, switchgear operating mechanism shall have an IP2X Protection and cable chamber shall have IP3X protection, outer enclosure shall be IP 54 type tested, painting (FRONT COVER RMU: RAL7035 & (FOR MIMIC RAL7043)) & ENCLOSURE: RAL7035 & (TOP COVER & BASE STAND IN RAL 7043)).

The unit shall be internal arc proof 21KA for 1 sec with AFLR clasification. tested and totally safe for human beings. The gas release & personnel safety from internal arc shall not depend on plinth design. The release of gas to be from the top of the unit, so that, even if the person is operating the unit, opening the cover & there are personnels near the sides of the RMU / plinth, top release will ensure their safety. The hot gas release, in case of an internal arc, in no case should be from any side or bottom of the unit, as the same is unsafe for the operating personnel / pedestrian or general public. Bidder shall provide type test report to prove compliance to the Internal Arc fault IAC-AFLR as per IEC 62271-200. Internal arc testing shall be done with enclosure door in open condition, with switching devices in operation mode as per specified standard.

Note: [a] An operator situated in front, lateral and rear [A-FLR 21 kA – 1 Sec, downwards exhaust, for tank as well as cable compartment] of the RMU switch board during an internal fault shall not be exposed to the effects of arcing. Internal arc type test report for IAC AFLR 21 kA for 1 Sec for both tank & cable box shall be for minimum as per OEM standards. [b] All operations shall of the RMU shall be as per OEM standards. [c] Copy of the type test reports as per latest IEC shall be submitted along with drawings for approvals.

Supply, installation, testing and commissioning (outdoor type) platform mounted step down transformer not less than 3 star rated, level 3, as per IS: 1180 (Part - I): 2014 as per BEE, of capacity 63 KVA, 11 KV / 415 Volts (at no load), AC 3 phase, 50 Hz, core type double copper wound, oil immersed, naturally cooled, oil natural- air natural (ON/AN) with external cooling tubes, delta connection on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYN-II with neutral brought out on secondary side (LV side) and having taping for voltage variation from -(10%) to +(5%) with variation of 2.5% on HT side and to be changed by means of hand operated OFF load tap changer gear. The maximum temprature rise should not exceed 40 degree celsius in oil and 45 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temprature of 40 degree celsius as per IS 1180 and including transformer shall comprises of the following complete all as specified and directed :-

(a) HT side (primary side) consisting of three Nos porcelain bushing with copper rods complete with nut & washers, HT bushing suitable for outdoor mounting transformer, 11000 Volts grade. (b) LT side (secondary side) consisting of four Nos porcelain bushing complete with nut & washers with one No cable gland suitable for reception LT 1100 Volts grade XLPE insulated and PVC sheathed heavy duty armoured cable of suitable size complete. (c) Oil conservator with filter type drain valve and oil level gauge complete. (d) De-hydrating breather with first fill of dehydrating agent (silica gel). (e) Explosive vent & thermometer pocket on tank cover, oil level gauge, oil drain filter valve, lifting lugs, oil filling hole with cap/plug with connection plate complete, air release valve plug and four Nos solid cast steel detachable rollers.

(f) One 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device. (g) Two earthing terminals on tank cover to facilitate fixing of 50 x 6 mm earth strip for earthing of neutral & body. (h) Rating plate and terminal marking plate. (j) Extra bushing for neutral in the LT side for providing independent set of earthing for neutral. (k) First filling of new and unused transformer oil as per IS-335 marked filtered and tested upto 60 KV dielectric strength at 2.5 mm air gap between testing electrodes.

NOTE: (i) Cost of construction of platform (of size 2.0 m x 2.0 m and height 0.9 m above the GL) with brick work in CM (1:6), 15 mm thick plaster in CM (1:6) & white wash on exposed surface and 100 mm thick PCC flooring (1:3:6) type C1 over 100 mm PCC 1:5:10 over filling with approved earth in layers n.exc 25 cm thick and 02 Nos. MS channels of requisite size with fixing arrangement for mounting transformer shall be deemed to be included in the unit rate quoted for this item. (ii) The transformer will be inspected and tested at factory site by the MES engineers before dispatch and the arrangement for the visit shall be born by the contractor, and rate quoted by the contractor shall be deemed to be included in the quoted rate.

Supply, installing, testing and commissioning of LT Outdoor type panel board of suitable size, pedestral mounted, CPRI approved totally enclosed, dust and vermin proof, front side openable, type IP 54 protection made of CRCA sheet 3.15 mm thick of size as per IS base / side frame of angle iron 50 x 50 x 6 mm and having proper locking arrangement in front and back side door suitable for 440 volts, 50 Hz, 3 phase 4 wire system and including cable glands of suitable size for incoming and outgoing cables and comprising with and including following accessories and mounted on PCC platform minimum 60 cm from GL and grouted in PCC 1:3:6, 100 mm thick, with the following items housed in complete all as specified and directed:- BUSBAR :- 200 Amps rated Alumunium bus bar TPN duly insulated with coloured PVC sleeve as per standard colour code and rigidly mounted on bakelite / DMC insulator bus bar support (square / round) insulators of suitable size and good insulation resistance (busbar to MCCB shall be connected through suitable size of aluminium rigid / flexible busbar).

(a) Incoming :- (i) MCCB 160 Amps, 4 pole, 50 KA, 415 V - 01 No. (Adjustable Type) (ii) ON- LOAD change over switch panel mounting type 415 V 50 Hz, confirm of cap 160 Amps -01 No. (iii) LED Multi function with meters - 01 No. (iv) LED indicating lamps - 1 (set of 3) (b) Outgoing :- (i) MCCB 100 Amps, 4 pole, 36 KA, 440V - 03 Nos. (Adjustable Type) (ii) Blank Space for MCCB

Excavation in trenches not exceeding 1.5 m in wide and not exc. 1.5 m in depth for taking out or laying of under ground cable in soft / loose soil complete all as specified and directed.

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

Removing surplus soil to a distance not exceeding 50 m and deposited at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

Supply and spread river sand to required width at bottom and top for cable cushioning complete all as specified and directed. Note: Punned thickness shall only be measured and paid.

Supply and laying un-reinforced precast concrete cable cover, class HV, type- I with flat size 300 mm x 180 mm x 40 mm as protection of cable in trenches complete all as specifed and directed.

M&L cutting the existing road / PCC / drain for taking out / laying of underground cable and including necessary earthwork excavation and making good to match with the existing surface with PCC 1:3:6 type C1 (using 20 mm graded stone aggregate) complete all as specified and directed.

M&L PCC (1:2:4) type B1 (using 20 mm graded stone aggregate) as in copings and footings for poles etc, and including necessary formwork complete all as specified and directed.

M&L PCC (1:4:8) type D2 (using 40 mm graded stone aggregate) as in foundations, filling and mass concrete complete all as specified and directed.

M&L PCC Type C1 1:3:6 (using 20 mm graded granite stone aggregate) cast in situ in lintels up to 1.5 M span, cills and other similar bands, plinth courses, parapets, copings, bed plates and the like including weathering, slightly rounded or chamfered complete all as specified and directed.

S&F PVC coated Chain link MS Galvanised Fencing Mesh of size 50 mm x 50 mm, 3 mm dia wire with minimum 1mm thick PVC coating and of weight not less than 4.5 Kg / Sqm and including line wires, any mesh, size and type to any type of standards, rails, straining bolts, etc, provision of binding wire complete all as specified and as directed.

M&L Mild steel round bars 10 mm dia., and over cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9 mm dia., or securing with clips complete all as specified and directed.

M&L filling of clean dry coarse sand all-round the transformer platform / 2 Pole / 4 Pole structure and cable duct after cleaning grass/small bushes, etc, and including removal of old dirty sand complete all as specified and directed.

M&L filling of gravels of size 40 to 60 mm all-round the transformer platform over sand filling complete all as specified and directed. Note:- Sand filling shall be measured & paid separately here-in-before.

Roy and Sons Infrastructures

M/S SOMANATH ENTERPRISES

cooltech engineering services

Shree Mahavir Associates

PABITRA MOHAN PARIDA

Rajan Traders