NIT No. 15 (21-22) Item No. 13

Dismantling of old system from LT panel i.e. old type components & allied accessories ,MS sheets, enclosures etc& shifting the same

LT Distribution panel sheet steel enclosure made out of 2mm CRCA sheet totally enclosed, powder coated free standing, floor mounted type, dust& vermin proof, outward opening, lockable doors having hidden hinges and a bolted back cover both using non-deteriorating neoprene rubber gaskets to provide IP protection .The each part of the fabricated panel will be strictly subjected to seven tank treatment. The various components, assemblies and sub equipments of the panel will be as per standard given in relevant IS. The bus bar of the panel will be shaped out of high conductivity, electrolytic conductor and shall be liberal sized in aluminum. The control wiring of the panel will be done with PVC flexible copper wires of 1.5mm cross section. Each wire will be terminating with a ferule crimped to the wire, size 1000MM x1200x300mm. Having following components of approved make including CT etc.

MCCB 415V, TP 3phase 50Hz,250Amp, breaking capacity 36 kawith handle & Spreader - Make L&T/siemens/Djb Approved

MCCB 415V, TP 3phase 50Hz,100Amp, breaking capacity- Make L&T/Djb Approved

MCB Single pole 6Amp. Make L&T/Havells/Djb Approved

MCB Triple pole 32Amp. Make L&T/Havells/Djb Approved

Power capacitors 415V unit of 8Kvar Make: Epcos/Djb Approved

Over load relay 45-75 Make: L&T/siemens/Djb Approved

Digital Amp. Meter Make AE/L&T/Djb Approved

Digital Volt Meter 0-500V -Make AE/L&T/Djb Approved

Motor protection Relay Make: L&T/Siemens/Djb Approved

Power contactor 220V 3phase50Amp. Make L&T/siemens/Djb Approved

Power contactor 220V 3phase70Amp. Make L&T/siemens/Djb Approved

Star delta timer on delay make: L&T/Siemens/Djb Approved

Indicating lights LED type RYB & On/OFF. Make : L&T /Havells /Djb Approved

Current Transformer200/5. Make AE /Advance/Djb Approved

S/o of copper armoured cable25 sq mm X 3.5Core. Make: Grandlay /Gloster/Djb Approved

On load change over switch 200Amp. Open execution type Make:L&T/Siemens/Djb Approved

Installation of the above components in panel enclosure with terminal blocks, channels, ferrules, thimble, supporting insulator on bus bar, required hard wires complete in all respect. Loading/ ,unloading by crane or heavy labour and cartage up to site.cleaning& dressing the surface for Installation of the panel at site on base frame ,laying of cable ,termination of cable both incoming & outgoing side. Testing and commissioning the panel at no load and full load.

Testing & commissioning of panel & allied accessories as per required parameters with relevant IS .testing of the panel prior to switching on as follow:- i)Continuity and earth testing. ii)Meggaring of all equipments for phase to phase, neutral to body, neutral to earth and phase to earth.iii)checking for all tightness of nut and bolts. iv) Alignments of doors etc.v)Interlocking tests.vi)All function testsvii)Testing on load with engineer in charge.

arun engineers and contractors