SPECIAL REPAIR TO FOUR POLE STRUCTURE OF NEW GOLF VIEW SUB STATION AT AHMEDABAD CANTT

Amount

M& L for dismantling of 4 pole structure including existing HT connection, dismantling of old PCC coping, complete area cleaning, levelling removing any type vegitation and removal of debris from site after taking shutdown properly as directed.

M&L for dismantling of Air Break switch with insulator of 400 Amp capacity 11000 Volt with handle and connecting pipe complete all as dirrected.

Supply, install, testing and commissioning of HT 11 KV, 3 Phase, 50Hz, totally enclosed metal clad SF6 switchgear having rupturing capacity upto 630A, Siemens make RMU, 8DJH ST, STC 21KA for 1 Sec, IAC 21KA for 1 Sec, Cu Busbar, TYPE: 2 Ways, Manual operated, Outdoor, non extensible, RLLLL, consisting of One LBS and Four VCB in a single unit (1xLBS + 4 x VCB), Rated Voltage - 12 kV, Rated power frequency withstand voltage - 28kV, Rated lightning impulse withstand voltage - 75kV, Rated current for Ring main feeder - 400A, Rated current for VCB feeder - 630A, Rated short-time current (Ik) - 21kA / 3 Sec, Rated short making current - 50 kA, Ambient temperature( -5 degree to +55 degree celsius), Design Ambient tempeture (40 degree C), with IP 54. Make : Siemens/ABB/L&T Each Vacuum Circuit Breaker includes:- (i) Manual VCB with position ON-OFF. (ii) Manual Bus Disconnector with three position switches ON-OFF-EARTH. (iii) Self powered relay for Overcurrent and earthfault protection. (iv) Three phase definite time over

Load break Switch (R) includes :-

(i) Manual Operated SF6 three position switches with position ON-OFF-EARTH. (ii) Manual Operated spring mechanism ON- OFF-EARTH. (iii) Mechanical indicators for position ON-OFF-EARTH. (iv) Mimic diagram at the front facia of RMU. (v) Socket for Capacitive Voltage Indicator (VPIS) fixed type. (vi) Padlocking facility. (vii) Provision for connecting maximum 1Rx3Cx300 sq mm HT Aluminium power cable Accessories with each RMU includes Cable Boots - 1 set per Feeder.

Accessories with RMU includes:- Operating handle - 1 No. Right angle Cable Boots - 1 set per Feeder

Supplying, Laying, Jointing, Testing and comissioning of HT UG cable, XLPE ,screened ,insulated ,steel tape armoured and PVC bedded ,11000 volts grade ,(heavy duty) earthing system with aluminium conductor of size 3 core 120 sq mm conforming to IS 7098 (part II), laid in trenches, fixed to walls or passing through pipes and connecting up all as specified and directed by Engr-in-charge. Make : Fort Gloster/Universal/ Asian cable/Havell's/ Plaza/Nicco.

Supplying, Laying, Jointing, Testing and comissioning of HT UG cable, XLPE ,screened ,insulated ,steel tape armoured and PVC bedded ,11000 volts grade ,(heavy duty) earthing system with aluminium conductor of size 3 core 95 sq mm conforming to IS 7098 (part II), laid in trenches, fixed to walls or passing through pipes and connecting up all as specified and directed by Engr-in-charge. Make : Fort Gloster/Universal/ Asian cable/Havell's/ Plaza/Nicco.

Material and labour for dismanteling old cable end termination and supply and fixing Cable end termination joint heat shrinkable outdoor type suitable for 11KV (earthed), 95 Sqmm XLPE, 3 Core power cable aluminium conductor. Make : M-Seal/ Raychem/Denson/Mahindra

Material and labour for dismanteling old cable end termination and supply and fixing Cable end termination joint heat shrinkable outdoor type suitable for 11KV (earthed), 95 Sqmm XLPE, 3 Core power cable aluminium conductor. Make : M-Seal/ Raychem/Denson/Mahindra

M&L for Earthing complete with glavanised steel earth plate electrode 60cm x 60cm x 6mm thick buried dirrectly in ground (earth pit not less than 2.25 mtrs deep below ground level ) with top edge of the plate not less than 1.5 mtrs below normal gournd level, connected to galvanised earth lead 32x6 mm dia by means of bolts, nuts, check nuts and washers of glavanised iron or steel all as shown in electrical plate No 3 connected to earthing test point complete with excavation, earth work, PCC 1:3:6 pit with RCC M-25 design mix cover 50mm thick reinforced with hard drawn steel wire fabric weighing exceeding 4 kg/Sqm with suitable handle made of 10mm MS Bar, 20mm bore GI tubing light grade for watering pipe, test point, GI funnel with wire mesh all as indicated including testing on completion complete all as specified and as directed.

Excavation in soft / loose soil in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out complete.

Returning filling with earth obtained from excavation including spreading watering and consolidation in layers not exceeding 25 cms thick complete.

Removing surplus soil to a distance not exceeding 50 m and depositing at a level not exceeding 1.5 m above the starting point complete.

M&L for sand filling in trenches with clean dry fine sand unwashed including gently punning around cables complete.

Supplying and laying reinforced precast concrete cable cover class HV, type 1, flat, size 300mm x 180mm x 40mm laid in trenches over sand for cable protection complete.

SATISH ELECTRICALS