RMBRO/E/DP/SYS/IPDS/18-19/33

Amount

Erection of 4-pole H.L. Gantry-cum Isolator with LA and CT support structure on 9 mtr. long H-Beam pole (erection of pole shall not less than 2500mm from GL) with all fittings including making cantilever arrangement for LA and CT support( pole & raw irons will be supplied by WBSEDCL but nut and bolt to be supplied by agecy must be galvanized; steel structure must be galvanized as directed in point no 24) and foundation(by CC 1:2:4) including muffing but without any insulator, as per standard drawings ,including smoothening surface by sand papering, painting (two coat red oxide primer and two coat aluminum oxide painting after which mentioned 'IPDS' with yellow ink), as instruction of site engineer of WBSEDCL

Cutting of 9mtr. Piece from 13m long H-Beam pole for work under Sl no 1

Erecton of 10 pole H-Beam Box support Structure by 13m long H-Beam pole(erection of pole shall not less than 3500mm from GL) with all fittings for HL and LL Bus and isolator support, PT Support structure by cantilever arrangement, Fuse unit for Station service, inverted earth spike etc. ( pole & raw irons will be supplied by WBSEDCL but all nut and bolt to be supplied by agecy must be galvanized;steel structure must be galvanized as directed in point no 24) and foundation (by CC 1:2:4) including muffing but without any insulator,including smoothening surface by sand papering, painting (two coat red oxide primer and two coat aluminum oxide painting after which mentioned 'IPDS' with yellow ink), as instruction of site engineer of WBSEDCL

Fabrication and erection of LT cable end box supporting frame work on civil foundation (to be constructed under separate order) by GI Chanel, Angle and Flat ( MS irons will be supplied by WBSEDCL ; nut and bolt to be supplied by agency must be galvanized; steel structure must be galvanized as directed in point no 24) complete with all fabrication for terminal arrangement for Station Service Transformer (Ref. Drg. No.- RE/SS/11)

Fabrication and erection of 11 KV cable end box supporting frame work on civil foundation(to be constructed under separate order) by GI Chanel, Angle and Flat ( MS irons will be supplied by WBSEDCL ; nut and bolt to be supplied by agency must be galvanized; steel structure must be galvanized as directed in point no 24) complete with all fabrication for terminal arrangement of 33/11 KV, 10 MVA Power Transformers (Ref. Drg. No.- PLN(D)/SS/85)

Erection of single H-beam pole of 13 mtr. long (for shielding purpose) with complete foundation & muffing and fittings ( poles & MS irons to be supplied by WBSEDCL; nut and bolt to be supplied by agency must be galvanized; steel structure must be galvanized as directed in point no 24) as per approved drawings, including smoothening surface by sand papering, painting (two coat steel primer and two coat best quality synthetic enamel painting after which mentioned "IPDS" in yellow ink) as instruction of site engineer of WBSEDCL

Fixing 33 KV polymer Disc insulator 70 KN along with supply and fixing of suitable hardware fittings (Compression type for Bus conductor)

Fixing 33 KV polymer Disc insulator 70 KN along with suitable hardware fittings (Composite type H&W fitting for Incoming/outgoing Gantry Structure)

Fixing 33 KV Polymer 10 KN Pin Insulators

Fixing of 11 KV Polymer, Pin Insulators 5 KN

Erection of 36kV, 630A, 28.8kA for 3 seconds, 3-ph double break center rotating type (DBCR), Gang Operated, isolator along with Support Insulators, Operating Mechanism, Base Channel down Pipe and all required accessories complete, as per standard drawings and instruction of site engineer of WBSEDCL

With ES (HL)

Without ES(LL)

Without Any Attachment(HL)

Erection of 2 mtr. long H-Beam pole for Isolator handle support (erection of pole shall not less than 1000mm from GL) with fittings for CR type isolator(for High Level and Low level CR isolator which are installed on Box support Structure) handel support channel ( pole to be cutted from remaining piceses of Sl no 2 & raw irons will be supplied by WBSEDCL but all nut and bolt to be supplied by agecy must be galvanized; steel structure must be galvanized as directed in point no 24) and foundation (by CC 1:2:4) including smoothening surface by sand papering, painting (two coat red oxide primer and two coat aluminum oxide painting), as instruction of site engineer of WBSEDCL

Fixing of CT on cantilever arrangement of Gantry-cum Isolator with LA and CT support structure(to be erected on sl. No 1) including supply and fixing of CT burden box for each set, of any reputed make and as per instruction of Site engineer of WBSEDCL

Fixing of PT on cantilever arrangement of 33KV BOX Support Structure (to be erected on sl. No 3) including supply and fixing of PT burden box for each set, of any reputed make and as per instruction of Site engineer of WBSEDCL

Erection of support structure on civil foundation(to be constructed under separate order) of 36 KV, 1250 A, 31.5 KA for 3 sec, 3 phase Outdoor type SCADA compatible Vacuum Circuit Breaker of any reputed make and installation of Vacuum Circuit Breaker on structure as per standard drawings and instruction of site engineer of WBSEDCL

Making and installation of 33KV Horn gap fuse unit for station service, jumpering from bus bar, hardware etc, as per standard drawings and instruction of site engineer of WBSEDCL (3 Nos. HG fuse=1Set)

Erection of 100 KVA 33/0.4 KV,3 ph, 50 Hz, ONAN, Cu.Wound CRGO core outdoor type Distribution Transformer(station service Transformer) on civil foundation(to be constructed under separate order) including supply of proper bi-metallic lugs(for HT &LT side bushing)as per approved drawings and instruction of site engineer of WBSEDCL

Drawl of Bus Conductor(ACSR 200Sqmm Panther) and fixing of droppers/connctors/lugs including jumpers to various equipment using 11 KV and 33 KV insulators, GI Pin, GI Hardware fittings, PG Clamps, T-connectors, PAD connctors(all PGclamps, T connctor, PAD connctors, CT/PT connctors to be supplied by agency) etc as per standard drawings and instruction of site engineer of WBSEDCL

Erection of 42kV, 1-ph Station Class Lightening Arresters in Gantry cum LA support four pole structure and connection with Dog conductor from Wolf conductor by suitable connectors and lugs(all connectors/lugs to be supplied by Agency) neatly, as per approved drawings and instruction of site engineer of WBSEDCL (1set-3nos)

Erection of 42kV, 1-ph Station Class Lightening Arresters in Fuse cum LA support Duble pole structure and connection with Dog conductor from panther conductor by suitable connectors and lugs(all connectors/lugs to be supplied by Agency) neatly,as per approved drawings and instruction of site engineer of WBSEDCL (1set-3nos)

Fixing of 12kV, 1-ph Station Class Lightening Arrester on 11KV cable box support, and jumpering from 11KV bus conductor by ACSR Dog by suitable connectors and lugs(all connectors/lugs to be supplied by Agency) neatly, as per approved drawings and instruction of site engineer of WBSEDCL(1set-3nos)

Installation of sheilding arrangement by drawal 50 sqmm. ACSR conductor, fixing of inverted earthspike on 13 m long shielding pole(to be erected under Sl no 6)

Erection of HT Stay set complete to drawl Shielding conductor

GALVANIZATION of structural steel material(supplied by WBSEDCL).All structural steel members shall be galvanized after fabrication as per IS:4759 ( zinc coating shall not be less than 610gm/sq. meter)

M/S NIMAI CHARAN GHOSH

PROGATI ELECTRICALS

LABPUR ENGINEERS CO