8244 REPAIR MAINTENANCE OF LIGHTENING PROTECTION INCLUDING EARTHING AND OTHER CONNECTED ACCESSORIES AT NAVAL DOCKYARD UNDER GE NW KUNJALI

Amount

M & L for CPT Cirprotec CPT-L ESE lightning rod with stainless steel body Type Advance lightning protection system in compliance with standard NFC 17-102 & UNE 21186-96, working on the principle of early streamer emission technology which will offer Level 1 protection for up to 42 Mtrs radius when mounted on the RCC concrete base on building at a height of 4.5 mtrs from the place to be protected complete all as specified and as directed. Make : NIMBUS-JEF Techno or equivalent as approved by GE

Supply and erection of mounting structure of 4.5 mtrs height with base plate suitable for roof mounting on RCC concrete base on building complete all as specified and as directed. Make : NIMBUS-JEF Techno or equivalent as approved by GE

Supply and fixing of 1 x 50 sq mm copper conductor with 0.5mm thick PVC sheathed cable complete all as specified and as directed.

Supply and fixing 4 digital electromechanical lightning event counter in weather proof resistance complete all as specified and as directed.

Supply and fixing of test link for connecting the earth pit and down conductor complete all as specified and as directed.

M & L for maintainance free enviroment friendly earth electrode set comprising of 17.2mm dia, 3 mtrs long rod of low carbon steel molecular copper bounded for a thickness of 250 micro ohms, highly conductive ANSI/NSF STD-60 certified carbon bound backfill compound which shall set like concrete according to BS 7430 & IEEE 80 (each bag shall contain 50 lbs) complete all as specified and as directed. Make : JEF Ecosafe or equivalent as approved by GE

Earthing complete with galvanised steel earth plate electrode 600x600x6mm thick buried directly in ground (earth pit not less than 2.25 mtr below normal ground level) with top edge of the plate not less than 1.5 mtr below ground level connected to the GI strip 32x6mm dia means of bolts, nuts check nut & washers of galvanised iron Earth wire protectted byprovision of GI light grade pipe 40mm incl provision of concrete pit in PCC (1:2:4) type B-1 using 20 mm graded stone aggregated with 40mm thick cover with RCC (1:2:4) reinforced with XPM (weight not less than 4 kg/sqm) and frame of angle iron 25mm x 25mm x 3mm with lugs 2 Nos and 6mm dia MS bar handle to shape, GI light grade 20mm bore pipe for watering perforated at bottom 1.75 mtr long placed on top edge of earth plate, common salt and charcoal filling, teste point made out of phosphorus bronze with fixing arrangement, funnel, wire mesh and earth work in hard/dense soil, returing filling in and removal of surplus soil to a distance not exceeding than 50 mtr all as per electric plate No 3 of SSR part 2009 and connection to earth test point all as specified incl testing on completion.

All as per item No 7 here in before but using copper plate 60 x 60cm x 3.15 thick electrode and 32 x 6mm copper strip as earting lead.

Earthing complete with galvanised steel earth plate electrode 600x600x6mm thick buried directly in ground (earth pit not less than 2.25 mtr below normal ground level) with top edge of the plate not less than 1.5 mtr below ground level connected and incl galvanised earth lead wire of 4mm dia by means of nuts & bolts, check nuts and wassher of galvinsed incl PCC (1:2:4) type B-1 cover reinforced with XPM (weight not less than 4 kg/sqm) and frame of angle iron 25mm x 25mm x 3mm excavation and earth work in any type of soil, charcoal dust, salt light grade GI watering pipe 20mm dia with funnel and wire-mesh and medium grade GI protection pipe of 15mm bore from top edge of earth plate upto main distrubution board complete all to as shown in electrical plate No 3 of MES sch 2009 (part-I) connected main switch board all as specified and testing on completion .

M&L for maintenace free chemical earthing system for safe earthing electrode (SEE) designed with pipe technolgy with hot deep copper plated (80-100) micron MS pipe size of outer pipe 80mm and inner pipe 40mm, 3mtr long inside filled with crystaline conductive mixture (CCM) having non corrosive and conductive properties complete eith two bag of black fill compund mixed with soil all around the earth pipe for smooth charge dissipation complete with bricks wall earth pit of size 450mm x 450mm with RCC pit cover. (03 Nos for each earthing pit) Note :- (1) The specified values of earth resistance ie less than 1 Ohm shall be subjected to soil condition. in generalresistivity of soil of the above the area is 8 to 16 ohms mtr with above earthing resisitivity could be achieved upto 3 ohms. However by connecting in grid of three earthing 1 ohm could be achived. (2). Earth strip will be measured and paid seprately.

S&F in replacement of air termination Aluminium rod single pointed 300 mm long and 12 mm dia complete all as specified and directed.

S&F in replacement of air termination copper rod single pointed 300 mm long and 12 mm dia complete all as specified and directed.

M&L in replacement of test point terminal block made out of gun metal of phospharus bronze fixed in 75 x 75 x 25mm MS/polycarbonate enclosure drilled & screwed including 3 Nos of 8mm dia 25mm long screw complete all as specified and as directed.

M&L for PCC pit cover (1:2:4 type B-1), reinforced with XPM, weight not less than 4 kg/sqm and 6mm dia bar handle earth pit angle iron frame of size 25x25x3mm complete all as specified and as directed.

S&F in replacement of earth continuity conductor with adequate size saddle fixed to wall on batten or recess or any other indicated situation for loop earthing etc as required 32mm x 6mm copper strip complete all as specified and directed.

S&F Aluminium strip 25 x 3.15mm with saddles and fixing screws etc for roof conductors and down conductors above ground complete all as specified and directed.

S&F in replacement of earth continuity conductor with adequate size saddle fixed to wall on batten or recess or any other indicated situation for loop earthing etc as required 20mm x 3.15mm copper strip complete all as specified and directed.

S&F in replacement of earth continuity conductor with adequate size saddle fixed to wall on batten or recess or any other indicated situation for loop earthing etc as required 32mm x 6mm GI strip complete all as specified and directed.

M & L for Earth continuity conductor 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 4mm dia galvanised iron or steel wire complete all as specified and directed.

S&F in replacement of GI pipe light grade 40mm dia for suppor to air termination rod including fixing with clamp, nuts, bolts complete all as specified and directed.

Material and labour for salt complete including mixing in adequate qty water and poring in existing watering perforated pipe suitable for earthing complete all as specified and directed

S & F in repair Distribution Board double door, prewired type, made out of CRCA mild steel sheet surface with insulated material like polyester or with epoxy powder coating and IP 43 & IK 09 protection surface mounting SPN 12 way, 240 volts with bus bar rating 200 Amps, dust and vermin proof suitable for incorporation of MCB’s and isolators etc complete all as directed. Make - Legrand cat No 5076 12 or equivalent Cat part in Siemens/GE

S & F in repair Distribution Board double door, prewired type, made out of CRCA mild steel sheet surface with insulated material like polyester or with epoxy powder coating and IP 43 & IK 09 protection surface mounting SPN 8 way, 240 volts with bus bar rating 200 Amps, dust and vermin proof suitable for incorporation of MCB’s and isolators etc complete all as directed. Make - Legrand cat No 5076 11 or equivalent Cat part in Siemens/GE

S & F in repair Distribution Board double door, prewired type, made out of CRCA mild steel sheet surface with insulated material like polyester or with epoxy powder coating and IP 43 & IK 09 protection surface mounting SPN 4 way, 240 volts with bus bar rating 200 Amps, dust and vermin proof suitable for incorporation of MCB’s and isolators etc complete all as directed. Make - Legrand cat No 5076 10 or equivalent Cat part in Siemens/GE

S & F in repair Distribution Board double door, prewired type, made out of CRCA mild steel sheet surface with insulated material like polyester or with epoxy powder coating and IP 54 & IK 09 protection surface mounting TPN 6 way, 415 volts with bus bar rating 200 Amps, dust and vermin proof suitable for incorporation of MCB’s etc complete all as directed. Make - Legrand cat No 5077 36 or equivalent in Siemens/GE NOTE FOR ITEM No. 22 to 25 : MCB DBs shall be concealed in wall where ever posible including cost of removing old wooden box making good the surface to match with surrounding deemed to be included in quoted rates

S & F MCB SP 6-32 Amps,10KA, 'C' series 240V complete all as specified and directed. Make : Legrand/Seimens/GE

S & F MCB SP 40 Amps,10KA 'C' Curve 240V complete all as specified and directed. Make : Legrand/Seimens/GE

S & F MCB SPN 63 Amps,10KA 'C' Curve 240V complete all as specified and directed. Make : Legrand/Seimens/GE

S & F MCB TPN 63 Amps, 10KA 'C' Curve 415V complete all as specified and directed. Make : Legrand/Seimens/GE

Material and labour for Brazing of existing Aluminium strip of any size, any height (on roof/on wall) at various places complete all as specified & directed.

Material and labour for Brazing of existing copper strip of any size, any height (on roof/on wall) at various places complete all as specified & directed.

DHARMESH ENTERPRISES

K.C.P ENTERPRISES

ORIENT ELECTRIC CO

georson constructions