Technical data

CHAP-04.10 ELECTRICAL POWER DISTRIBUTION, DRIVES, CONTROL &
ILLUMINATION ELECTRICAL
Page 13 of 50
control rooms, cable cellars, cable tunnel, cable channel or overhead
cable bridge for interplant cabling.
15. The tentative location of LTSS: CHP –LTSS opposite 5 silos, CSP-
LTSS near JH-11 and Coke Screening station and FFP-LTSS near
JH-117 and Coke breeze storage yard. If the nos. of LTSSs
increases during Basic Engineering to suit the technological
requirement in line with GTS, the same will be proposed by
Contractor during Basic Engineering.
IV) Earthing and Lightning Protection
1. Measurement of soil resistivity test at site for designing earthing
system.
2. Lightning protection system for entire plant including Air termination,
separate dedicated earthing stations, conductors, testing links,
interconnections and accessories as per IS.
3. Supply and installation of complete earthing system including earth
pits, earth grid with GI strips for the substations, neutral earthing of
transformers, earthing of all electrical equipments in electrical
premises, Junction houses, process / technological building etc.
4. Special earthing system (including earth pits, earth grid with GI strips,
Copper Cables as required) for earthing of PLC, RIO panels, VFD,
other Electronics equipment & automation system as per their
manufacturer’s recommendation. It will be distinct and separate from
the power and lightning equipment earthing system.
V) Erection accessories, spares, safety items, documentation &
other miscellaneous items
1. Supply of all erection accessories and materials, all steel members
(angle, channel, plate, steel sheet, etc.) for installation of electrical
equipment, GI pipes, GI conduits, bends, clamps, nut, bolts, ladder and
perforated type cable trays, tray installation materials & accessories,
cable supporting structures, heat protection materials, flexible metallic
hoses, sealing materials for openings/conduits, double compression
cable glands, cable lugs, cable tags, cable fasteners, insulating tapes,
ferrules, RCC slabs, sand, bricks for under ground cable laying, GI
pipes for protection of cables at road crossings and other places, cable
markers, cable jointing & termination kits and materials, earthing strips
of different sizes, junction boxes, pull boxes, heat resistance paints
and all consumable materials for complete laying & termination of
cables, erection of electrical equipment and earthing system etc.