REPAIR/REPLACEMENT OF UNSERVICEABLE LIGHTENING CONDUCTOR, EARTHING TEST POINT AT ESH SHED AND OTHER STORAGE SHEDS IN SIDE DEPOT AT ARMY AREA BANAR

Amount

Taking out carefully existing aluminum strip of size 25x3.15mm including porcelain / PVC insulators from roof/wall at a height upto 10mtr and seperating the serviceable/unserviceable material complete as directed.

Fixing only in repair aluminum strip as retrieved services from item No 1, in position including provision of new insulators and proper layout on roof/wall at a height upto 10mtr as directed by Engr-in-Charge.

S&F of aluminum strip of size 25x3.15mm incl saddles / supporting insulators to run over the roof complete all as specified and directed by Engineer-in-Charge.

Taking out carefully existing GI strip of size 32x6mm including porcelain / PVC insulators and air termination rods from roof/wall at a height upto 10mtr and seperating the serviceable/unserviceable material complete as directed.

Fixing only in repair GI strip retrieved services from item No 4, in position including provision of new insulators and proper layout on roof/wall at a height upto 06mtr and burried in ground depth not lesss than 60cm all as directed by Engr-in-Charge.

S&F GI strip of size 32x6 mm including mounting on including PVC/Porcelain insulators on wall and burried in ground depth not less than 60cm in ground protected by GI Pipe 40 mm dia medium grade complete all as specified and directed by Engineer-in-Charge.

M&L in replacement air termination single pointed aluminium rod 12mm dia and 300mm long fixed proper on GI pipe/PCC by drilling, nut,bolt etc complete all as specified.

Supply and fixing in replacement test point terminal block made of gun metal or phasphorus broze size 75x75x25mm, drilled and screwed including 3 nos. 8mm dia, 25mm long hex head screw including test point enclosed in fiber box of size 125x125x50mm fixed on wall all as directed by Engr-in-Charge.

Supply and fixing in replacement of GI tubing 50mm dia medium grade in incl necessary fittings for lowering in borewell of depth upto 30mtr and grouting at roof top in cement concrete to mount the air termination rod complete all as specified and directed by Engineer-in-Charge. Note: PCC work for grouting on roof shall be measured and paid seperately under relevant item of Schedule.

M&L in replacement of earthing with Galvanised Steel earthplate of size 600x600cmx6mm thick electrode and 32x6mm GI strip length up to 7.5 mtr as earth lead, buried directly in ground, protected by GI Pipe 40 mm dia medium grade (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5m below ground level, connected to 32x6mm earth strip by means of nuts, bolts, check nuts and washers of GI all as shown in electrical plate No.3 of SSR Part-I, connected to earth test terminal point all as specified or as indicated including testing on completion (Rates are also inclusive of neccessary excavation in any type of soil, earth work, PCC pit, PCC cover, funnel with watering pipe, GI Pipe 40 mm dia medium grade protection pipe for earth strip in ground etc. all as required at site for complete earthing). Note: (i) The earth pit shall be refilled by boulders free from vegetable soil. (ii) Testing of earthing shall be carried out after completion of earthing.Payment for earthing shall be admissible only after satisfactory test result.

Material and labour in replacement earthing with bore well earthing by using mechanical boring machine of 150 mm dia, 30 mtr depth with 50 mm dia medium GI pipe duly drilled all around 15 mm dia hole at a distance of 200 mm from hole to hole upto min 20 mtr depth/upto water level including supply and fix 150 mm dia (O.D), UPVC pipe 6 kg/sqcm rating -06 mtr long with the help of suitable size clamp with nut bolt and washer -01 No, including providing 32mm x 6mm GI Strip up to 10 mtr protected by GI Pipe 40 mm dia medium grade in ground and connected to terminal block, grouting of bore well with PCC (1:2:4) type B-1 and Brick masonry pit of size 45x45x45cm complete and give the minimum earth test result below 1 Ohm complete all as specified and directed by Engineer-in-charge. Note:- (i) Testing of earthing shall be carried out after completion of earthing.Payment for earthing shall be admissible only after satisfactory test result.. (ii) GI tubing 50mm dia medium grade shall be measured and paid separately under respective items of schedule.

M&L PCC (1:3:6) type C-I using 20mm graded stone aggregate for coping of GI pipe at roof top with form work as required complete all as specified and directed.

Material and labour in replacement for providing earth identification board made out of MS sheet of size 150x100x6mm including angle iron 40x40x5mm. (60cm long) duly painted with black paint and marking the earth pit number including grouting the angle iron in PCC 1:3:6 compelet all as specified as directed.

Material and labour for marking of earth results /next due date etc on wall by using black enamelled paint as a background of size 40cmx40cm and letters in white colour complete all as specified and directed by Engineer-in-Charge.

SARASWATI ELECTRIC STORE

Anil Builders

M/s Vishaka Enterprises