SPECIAL REPAIR REPLACEMENT OF EXISTING TWO FOUR POLE STRUCTURE WITH RMU AT VARIOUS LOCATIONS OF AFS YELAHANKA

Amount

Surface dressing not exceeding 15 cm deep in hard soil all as specified & directed.

Excavation in trenched not exceeding 1.5m deep & not exceeding 1.5m wide and getting out in hard/dense soil, all as specified & directed.

Returning filling in hard/dense soil including spereading levelling watering and well ramming in layers not exceeding 25cm thick, all as specified & directed.

Removing excavated materials to a distance not exceeding 50m and deposited where directed at a level not exceeding 1.5m above the starting point, all as specified & directed.

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

Providing cement concrete 1:2:4 type B0 (using 15.2mm graded stone aggregate) as in copping and similar work, all as specified and directed

M&L precast cement concrete block masonary with solid block exceeding 10cm in widith, type C1 (1:3:6) and setting in mortar 1:4, all as specified and directed.

M&L 15mm thick cement plaster in CM 1:4 on otherthan fair faces of brickwork or stone surface, finished even and smooth without using extra cement complete all as specified and directed.

M&L for preparation of newly plastered wall surfaces and applying two coats of cement base paint over alkali resistant primer, complete all as specified and directed.

M&L for Dismantling of two pole structure including GOD, stay assembly, air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism, DO switch fuse including insulators, insulators any type,cross arms of M S channel or angle sections, foundation accessories, etc,LA distribution class 9 KV and discharge capacity 5 KA ground leveling, complete all as specified & directed. NOTE - The quoted rate is deemed to include the cost of demolition of concrete, excavation and earth work including making good the disturbed surfaces.

M&L for Dismantling of four pole structure including GOD, stay assembly, air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism, DO switch fuse including insulators, insulators any type,cross arms of M S channel or angle sections, foundation accessories, etc,LA distribution class 9 KV and discharge capacity 5 KA ground leveling, complete all as specified & directed. NOTE - The quoted rate is deemed to include the cost of demolition of concrete, excavation and earth work including making good the disturbed surfaces.

Supply and fixing in replacement cable jointing kit for 11 KV 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 size 95 Sqmm, complete all as specified & directed.

S&F danger notice plate of 1.6mm thick mild steel sheet, vitreous enameled white with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts of approved size for LT, 20x15cm size including taking down old unserviceable danger notice plate, all as specified and directed.

M&L for Earthing complete with galvanised earth plate electrode of size 600x600x6mm thick burried directly in ground earth pit not less than 2.25 m below ground level with top edge of earth plate not less than 1.5 mtrs below ground level connected to galvanised iron strip of size 32mm x 6mm as earth lead upto a length of 7.5 metre long by means of bolts,nuts, washers etc. and protected by GI pipe light grade 40mm dia and 20mm dia GI tubing medium grade with funnel for watering, all as shown in electrical plate No 3 of SSR Part-I, back-fill with salt and charcoal, provision of test point including connected to earth test point and necessary earth work excavation in any type of soil PCC (1:3:6) type C2 bed and chamber RCC (1:2:4) type B1, iron grill including PCC cover with hinge and funnel watering pipe etc all as specified and directed.

Supply, Install, test and commissioning of 11 KV, 630 Amps, 3 phase , 21 KA/3 sec, 50 Hz totally gas insulated manually operated out door type SAFEPLUS compact Ring Main Unit (Type : CVV+) consisting of 1 Nos LBS as incomer and 2 No VCB as outgoing with current sensor and suitable numerical relay with O/C, E/F protection complete all as specified and directed alongwith the following specifications:-

(A) COMMON STANDARDS AND MECHANICAL DATA (i) Metal Enclosed switchgear: IEC 62271-200. (ii) General Purpose switches: IEC 60265-1. (iii) Disconnectors and Earthing switches: IEC 62271-102. (iv) Switch Fuse Combination: IEC 60420. (v) Circuit Breakers: IEC 62271-100. Common clauses:IEC 60694. (vi) Pressure of SF6 gas: 1.4 bar at 20 "C. (vii) Cable bushings: DIN 47636. (viii) Temperature class: -25 C to +40 C outdoor. (ix) Degree of protection: (x) SF6 tank: IP 67,

(xi) Front cover: IP 2X, (xii) Cable cover: IP 3X, (xiii) Enclosure IP 54 (xiv) Busbars : 240 mm2 Cu, (xv) Earth bar (external): 120 mm2 Cu - Bolt dimension: M10, (xvi) Thickness of Stainless Steel Tank: 2.5 mm, (xvii) Thickness of CRCA Enclosure - 2 mm (xviii)Colours: Front cover: RAL 7012, Side and cable cover: RAL 7035, (ixx) Access to cable (xx) front cable access

(B) ELECTRICAL DATA – 12 kV - 28kV-1min, (i)Nominal voltage: 11KV , (ii)Rated frequency: 50Hz (iii) Rated current busbars: 630 A, (iv) Rated current cable switch disconnector: 630 A (v) cable switch disconnector with interface C (400-bolt) bushing : 21 KArms,(3sec) (vi) Short time withstand current (3 sec) (vii) vacuum circuit breaker with interface C (400 - bolt) bushing : 21 KArms (3sec), (viii) Rated current for transformer T-off : 630 A, (ix) Impulse withstand voltage : To earth and between phases: 75 kV, (x) Insulation level: Power frequency 1 min: 28 kV.

(C) LOAD BREAK SWITCH :- Safe Plus C is a cable switch module with a three position load break switch and earthing switch,busbars, interlocking and earthbar (i) 1 Cable switch 12kV, 630A, 20kA, (ii) 1 Snap action mech. for manual operation, (iii) 1 Manometer and signal (1NO) from peessure indicatore wired to terminals, (iv) 1 Cable cover standard with interlocking. (v) 1 Cable bushings 400 series bolted, 630 A, standard, (vi) 1 Capacitive voltage indication fixed type VPIS 9-15 kV.

(C) Vacuum Circuit Breaker SafePlus V is a Vacuum circuit breaker module with vacuum circuit breaker, three position isolator / earthing switch, busbars, interlocking, earthbar and stored sping energy mechanism. (i) 1 V: Vacuum circuit breaker 12kV, 630A, (ii) 1 Stored energy mech. for manual operation (iii) 1 Cable cover standard with interlocking (iv) 1 REJ601 Aux Powerded relayf for Over current and Earth Fault Protection suitable for current sensor input (v) 1 Cable bushings interface C (400 bolted), 630A. (vi) 1 Bushing outside cone interface C for connection of external busbars (vii) 1 Capacitive voltage indication fixed type VPIS 9-15 kV (viii) 3 Current sensore KECA 80 C85 (ix) 1 Auxiliary Transformer 11KV/V/3/220 with 1000VA burden for 230VAC supply.

Following additional equipment delivered separately or mounted in respective panel :- (i) Cable support bars, standard for 3-Way unit. (ii) Operating handle. (iii) 2x12VDC , 12 AH battery and its charger

Note: 1. Vacuum interrupter bottle, RMU, Main Numerical Relay shall be of same OEM make in whose name type test reports will be submitted. 2. RMU shall be offered by OEM who is also the SF6 tank manufacturer which is core & integral part of RMU. RMUs of system House/ Franchise / Licenses Partners of OEMs shall not be accepted.

navreet construction (BID ID -3090622)

devan enterprises (BID ID -3087773)