REPAIRS MAINTENENCE OF GEYSERS SUB MAIN WIRING AND ALLIED WORKS AT ZONE A B AND D AREA UNDER GE CHENNAI

Amount

BOQ UPLOADED ON 13 JUL 2021

Taking down carefully storage type water heater (Geyser) of any type and any make upto 50 Litre capacity after disconnecting all electric connection; descaling the inner container, heating element, base assembly etc. by using diluted hydrochloric acid and cleaning thoroughly, filling the inner container with water and checking and arresting leakage if any, reassembling the geyser after servicing and replacing unserviceable spare parts and refixing including making water connections and testing on completion complete all as specified and directed. Notes: (i) Spare parts like heating element, thermostats, hot/ cold water lines, PVC connections etc., shall be measured and pair separately. (ii) Painting shall be measured and paid separately.

Supply and fixing in repairs copper/ steel inner container of the geysers including replacement of worn out brass studs and copper tubing for the following capacity complete all as specified and directed:-

Geysers of capacity 25 Ltrs.

Geysers of capacity 50 Ltrs.

Supply only heating element 2 KW capacity suitable for AC single phase 50Hz, 230 Volts suitable for geysers for thread type/ press type/ triangular/ circular type all specified and as directed.

Supply only heating element 1.5KW capacity suitable for AC single phase 50Hz, 230 Volts suitable for geysers for thread type/ press type/ triangular/ circular type all specified and as directed.

Supply only thermostat automatic cut off with ISI mark suitable to geysers of any range from 20° C to 90° C all as specified and directed.

Supply only hot water steel guarded PVC connection pipe 450mm long with self locking nut at both ends suitable for 15mm bore outlet all as specified and directed.

Supply only cold water steel guarded PVC connection pipe 450mm long with self locking nut at both ends suitable for 15mm bore outlet all as specified and directed.

M&L for applying one coat of synthetic enamel paint white or brown tint as directed by spraying to the geysers including cleaning the dust/ rust from the body and numbering the geysers 'MES No' with black enamel paint complete all as specified and directed.

Supply only phase indicating neon lamp round or rectangular type suitable for single phase 230 volts, 50Hz AC for respective make of the geysers. Note: Set of two lamps containing green and red colour shall be counted as one unit.

Supply only non return valve 15mm bore of gun metal conforming to relevant IS specification all as specified and directed.

Supply & fixing iron top body cover for storage geyser of 25 litre capacity including screws complete all as specified and directed.

Supply & fixing iron top body cover for storage geyser of 50 litre capacity including screws complete all as specified and directed.

Supply & fixing iron bottom body cover for storage geyser of 25 litre capacity including screws complete all as specified and directed.

Supply & fixing iron bottom body cover for storage geyser of 50 litre capacity including screws complete all as specified and directed.

Supply & fixing copper assembly for storage geyser of 25 litre capacity including screws complete all as specified and directed.

Supply & fixing copper assembly for storage geyser of 50 litre capacity including screws complete all as specified and directed.

Supply & fixing assembly cover for storage geyser of 25 litre capacity including screws complete all as specified and directed.

Supply & fixing assembly cover for storage geyser of 50 litre capacity including screws complete all as specified and directed.

Supply & filling glass wool in storage geyser of any litre capacity all as specified and directed.

Supply & fixing fasteners fixed to wall with nuts and washers for fixing storage geysers of capacity 25/ 50 litre all as specified and directed.

Supply & fixing 15 Amp 3 pin plug top all as specified and directed.

Supply and connecting 2.5 sqmm 3 core flexible cable with copper conductor as in connection wire from geyser connection plate to socket all as specified and directed.

Supply and fixing 15mm bore medium grade galvanised iron tubing fixed to wall with suitable clamps including taking down existing pipe complete all as specified and directed.

Supply & fixing in repairs stop valve, cast copper alloy with crutch or butterfly handle, screwed down, screwed for 15mm bore iron pipe or brass ferrule complete all as specified and directed.

Supply & fixing in repairs bib tap, fancy type, cast copper alloy with crutch or butterfly handle, screwed down, screwed for 15mm bore iron pipe or brass ferrule complete all as specified and directed.

M&L for submain wiring complete with two runs of 4.0 Sqmm single core, multistranded, FR PVC insulated unsheathed cable 1100 volts grade with copper conductor, drawn through and including new rigid non metallic PVC conduit medium grade ISI marked 25mm external dia concealed in wall/ floor along with conduit fittings and accessories, fixed on ceiling with one run of 4.0 Sqmm PVC insulated unsheathed copper conductor cable as earth continuity conductor and connecting to common earth dolly including taking down existing submain wiring with conduit any type complete all as specified. Note: Two runs of 4.0 sqmm multistranded cable and one run of 4.0 sqmm cable as earth continuity conductor alongwith PVC conduit shall be considered as one unit length.

M&L for submain wiring complete with two runs of 6.0 Sqmm single core, multistranded, FR PVC insulated unsheathed cable 1100 volts grade with copper conductor, drawn through and including new rigid non metallic PVC conduit medium grade ISI marked 25mm external dia concealed in wall/ floor along with conduit fittings and accessories, fixed on ceiling with one run of 6.0 Sqmm PVC insulated unsheathed copper conductor cable as earth continuity conductor and connecting to common earth dolly including taking down existing submain wiring with conduit any type complete all as specified. Note: Two runs of 6.0sqmm multistranded cable and one run of 6.0sqmm cable as earth continuity conductor alongwith PVC conduit shall be considered as one unit length.

M&L for submain wiring complete with two runs of 10.0 Sqmm single core, multistranded, FR PVC insulated unsheathed cable 1100 volts grade with copper conductor, drawn through and including new rigid non metallic PVC conduit medium grade ISI marked 25mm external dia concealed in wall/ floor along with conduit fittings and accessories, fixed on ceiling with one run of 10.0 Sqmm PVC insulated unsheathed copper conductor cable as earth continuity conductor and connecting to common earth dolly including taking down existing submain wiring with conduit any type complete all as specified. Note: Two runs of 10.0 sqmm multistranded cable and one run of 10.0 sqmm cable as earth continuity conductor alongwith PVC conduit shall be considered as one unit length.

M&L for submain wiring complete with four runs of 10.0 Sqmm single core, multistranded, FR PVC insulated unsheathed cable 1100 volts grade with copper conductor, drawn through and including new rigid non metallic PVC conduit medium grade ISI marked 25mm external dia concealed in wall/ floor along with conduit fittings and accessories, fixed on ceiling with two runs of 10.0 Sqmm PVC insulated unsheathed copper conductor cable as earth continuity conductor and connecting to common earth dolly including taking down existing submain wiring with conduit any type complete all as specified. Note: Four runs of 10.0 sqmm multistranded cable and two runs of 10.0 sqmm cable as earth continuity conductor alongwith PVC conduit shall be considered as one unit length.

Supply, fix, connecting and testing factory made, MCB distribution board (MCB DB), IP 38, SPN, 4 way, 240 Volts, double door, flush type made out of 1.2mm thick CRCA sheet metal, Phosphatised, duly powder coated and conforming to IS 13032 with 200 Amps rated bus bar, neutral link, earth bar and din rail etc. complete fixed in switch board/ wall including taking down the existing one complete all as specified and directed. Note: MCBs shall be measured and paid separately.

Supply, fix, connecting and testing factory made, MCB distribution board (MCB DB), IP 38, SPN, 8 way, 240 Volts, double door, flush type made out of 1.2mm thick CRCA sheet metal, Phosphatised, duly powder coated and conforming to IS 13032 with 200 Amps rated bus bar, neutral link, earth bar and din rail etc. complete fixed in switch board/ wall including taking down the existing one complete all as specified and directed. Note: MCBs shall be measured and paid separately.

Supply, fix, connecting and testing factory made, MCB distribution board (MCB DB), IP 38, TPN, 6 way, 240 Volts, double door, flush type made out of 1.2mm thick CRCA sheet metal, Phosphatised, duly powder coated and conforming to IS 13032 with 200 Amps rated bus bar, neutral link, earth bar and din rail etc. complete fixed in switch board/ wall including taking down the existing one complete all as specified and directed. Note: MCBs shall be measured and paid separately.

Supply, fix, connecting and testing factory made, MCB distribution board (MCB DB), IP 38, TPN, 8 way, 240 Volts, double door, flush type made out of 1.2mm thick CRCA sheet metal, Phosphatised, duly powder coated and conforming to IS 13032 with 200 Amps rated bus bar, neutral link, earth bar and din rail etc. complete fixed in switch board/ wall including taking down the existing one complete all as specified and directed. Note: MCBs shall be measured and paid separately.

Supply, fix, connecting and testing MCB TPN, 63 Amps, 415 V of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCB TPN, 40 Amps, 415 V of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCB SPN, 63 Amps, 240 volts of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCB SPN, 40 Amps, 240 volts of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCB single pole (MCB SP), 63 Amps, 240 volts of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCB single pole (MCB SP), 6 to 32 Amps, 240 volts of rupturing capacity 10kA, C curve type including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCCB four pole 100 Amps, 415 volts breaking capacity, 16kA with fixed thermal setting including taking down the existing one complete all as specified and directed.

Supply, fix, connecting and testing MCCB four pole 63 Amps, 415 volts breaking capacity, 16kA with fixed thermal setting including taking down the existing one complete all as specified and directed.

Supply and fix single pole and neutral sheet metal enclosure with a two pin and earth plug and socket complete with one single pole MCB of capacity 20 Amps, 230 Volts including taking down old one complete all as specified and directed.

Earthing complete with galvanized steel earth plate electrode of size 600mm x 600mm x 6.0mm thick burried directly in ground (earth pit not less than 2.25m deep below normal ground level) with top edge of plate not less than 1.5m below normal ground level, earth plate connected to galvanized iron earth wire of 4mm dia as earthing conductor by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 of MES Schedule (Part I) (2009) connected to earth test point/ main switch/ DB/ Panel board all as specified or indicated including testing on completion with and including 15mm bore light grade GI protection pipe 7.5 meter long for earth strip including PCC (1:3:6), type C-1 pit with 40mm thick precast RCC (1:2:4), type B -1 cover reinforced with 12mm dia MS bars @ 150mm c/c both ways with lifting hooks made out of 12mm dia MS bars, wire mesh funnel with watering pipe 20mm dia light grade, common salt, charcoal filling in layers as specified, necessary excavation and earth work in any type of soil etc., complete all as specified and as directed.

EVEREST ENGINEERING WORKS

D Subramani and Sons

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GK ENTERPRISES

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