SPL REPAIR 07 NOS VCB AGAINST BER AND ALLIED WORKS AT NAMS

Amount

Supply, installation, testing and commissioning of Scada Compatible indoor type vacuum circuit breaker (VCB) of 7 panel Switchboard (1 incomer & 6 Outgoings) shall be of floor mounting, sheet steel clad, free standing, and dust & vermin proof, compartmentalized type VCB switchboard with posibility of future extension at both side. The MS sheet 2mm thickness must be as per tested design of manufacturer. The switchboard shall be suitable for 12 KV, 3 Ph., 3 W, 50 Hz , AC system and complete with VCB, air insulated Copper Bus bar rated for 1250Amp for 11KV switchboard and suitable for a short circuit capacity of 26.3 kA for 3 Sec. Switchgear should be as per latest IEC 62271 (62271-1, 62271-100, 62271-200). All the compartments of the panel should be segregated from each other by means of earthed metallic sheet steel. The shutters which should be provided for Horizontal drawout type with Electrical and Mechanical interlock and automatic safety shutter gear including padlocking arrangement safety purpose must also be of earthed metallic sheet steel only. The shutter mechanism should be coupled with the movement of the withdraw-able truck. Except the busbar compartment, all the compartments of each cubicle should be independent from the similar compartment of the adjacent panels. The busbar compartment should run from end to end without any inter-panel barriers so as in the event of internal arc inside the bus bar compartment, the arc will travel along the length of the switchboard. The switchboard shall be painted with light grey, shade No. RAL 7032, both inside and outside with IP-4X ingress protection. Inbuilt Anti-pumping Feature. VB should be Energy management Solution enabeled. 1. EMS software should have inbuilt E-mail & SMS trigger functions. 2. EMS software must have a separate screen with minimum of 10 Analog Gauges for parameters viewing. 3. EMS Dashboard must have provision to show daily as well as monthly comparative energy consumption. 4. Must be able to generate Electricity bills directly from software. True Close Door Operation as per IEC. Individual Shutter Assy for Bus Bar Side & Cable Side. By Default Test / Service Indication. Spout with Copper Terminal

CURRENT TRANSFORMER :- Single Phase Epoxy Cast Resin Current Transformer :‐ Rated Voltage: 11KV, BIL=12/28/75 KVp, Frequency: 50Hz, Isc: 25KA/1 sec. CTR: 200-100/5 A, Core 1: 15VA, Class 1.0, Core 2: 10VA, Class 5P10 Make : As per OEM - IDMT RELAY having protections of 50,51, 50N,51N 3PH O/C+E/F HI‐SET C.R & R AUX SUPPLY: 110V‐240V AC/DC CONTACTS: 4 Numbers; COMM. PORT: RS485 IDMT: PROGRAMMABLE

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 11000 volts grade, of size 120 sq mm, 3 core complete, all as specified and directed.

Material and labour for earthing complete with Copper earth plate electrode 60cm x 60 cm x 3.15 mm thick buried in ground vertically to a depth not less than 2.25 mtrs deep below ground level with top edge of plate not less than 1.5 mtr below normal ground level connected to copper strip of size 20x3 mm and 40 mm dia bore 7.5 mtr long light grade GI protection pipe for earth strip and GI watering pipe 40 mm dia medium grade from the top edge of earth plate fixed with deep cut on one end of pipe and fix from earth plate up to one feet above ground level of other end and plugged watering pipe at top with MS cap and grouted in PCC 1:2:4 (type-B1 using stone aggregate) of size 30 X 30 X 30 cm etc and 15 cm alternate layer of charcoal and salt around all sides of earth plate all as shown in electric plate no 3 of SSR Part I (2009) complete, all as specified and directed. Note :- All joints either strip to strip of strip to earth plate are fixed with welded joints.

Supply and fixing earth continuity or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthing etc as required copper strip of size 20x3mm from test point to transformer or other places complete, all as specified and directed.

Material and labour for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete, all as specified and directed.

Material and labour for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete, all as specified and directed.

Excavation in trenches n.exc. 1.5 m wide and n. Exc. 1.5m depth: for foundation, etc or for shfts, wells, cesspits, manholes, pier holes laying of cables, etc. n. Exc. 10 Sqm on plan and n. Exc. 1.5 m in depth and getting out complete, all as specified and directed.

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

Removing excavated material n. exc. 50m and depositing where directed at a level n. exc. 1.5 m above the starting point complete, all as specified and directed.

Material and labour for Sand cushioning to underground cable 8cm before laying the cable and 15cm (punned down to 18 cm) after laying and stretching the cable complete, all as specified and directed.

Supply and laying for un-reinforced precast concrete cable cover factory made, class HV, type I, flat of size 300mm x 180mm x 40mm complete, all as specified and directed.

Supply and laying GI steel pipe, 80mm bore, light grade with all fittings, laid in trenches / under roads / along pole / wall for protection of Cable / GI wire / GI strip etc complete including clamps, nut and bolts etc complete, all as specified and directed.

kailu construction co

Bharat Builder

AVON ELECTRICALS

dinesh enterprises

CHOUDHARY AND SONS

M/S Inderjit Sharma and Co.

PRAJAPATI E and S ENGG CO