3101/11/E3

1. Excavation in trenches n exc 1.5 mtr wide and n exc 1.5 mtr in depth for taking up / down the GI strip and getting out in soft loose soil complete all as specified and directed Cum -8.64 2 Retuning filling in incl spreading. leveling watering and well ramming in layers n exc 25cm each in soils all as directed Cum -8 3. Supply and fix air termination single pointed aluminium rod not less than 12mm dia and 300mm long incl fixing of GI base on epoxy insulators of suitable size to isolate from the roof and fixing of insulators on roof over the purlin using self tapping screw of suitables length or other means to make the roof leakage roof For fixing of air terminal rod and connecting with down/roof condutors complete all as directed. 4. Supply and fixing Copper strip of size 32x6mm incl epoxy/porcelain insulators of suitable size distance between insulators not more than 1 mtr including fixing screws washers etc complete for (a) Fixing on steel sheet roof/ Clading over the steel purlin using self tapping screws of suitable length GI washes rubber washers etc to make leakage proof all as directed - RM 140. (b) Fixing on wall as down conductor using screws washers gutti / eawal plugs etc all as directed - RM -48 5. Material and labour for test point terminal block made of gun metal or phospphours bronze size 75x 75x25mm drilled and screws end connected to existing aluminium /GI strips complete incl 3 Nos 8mm dia 25mm long hex head screw complete and incl 3 nos fixing of test point with sheet metal enclosure on insulators to isolate from the wall , fixing of insulators on wall using suitable size of screws washers, gutti rawal plugs etc including making good to distubded surfaces complete all as specified each -04 6. Supply and fix GI strip 32x6mm burried in ground complete all as specified and directed - RM 55 7. Material and labour for earthing complete With GI steel 40mm bore medium grade 2.5 mtrs length burried directly and prefebly vertically in ground level with top edge not less than 1.25 mtrs below ground level, connected to 32x6mm GI strip as earth lead by means of nut bolts check washers GI connected to earth test point including necessary earth work excavation in any type of soil PCC chamber in 1:3:6 type C 1 RCC cover 1:2:4 type B1 550mm x 550mmx50mmthick reinforced with 8mm dia CTD bars at 150mm C/E both ways 2 Nos lifting hooks all as specified and directed - Each -4 Note GI Strip 7.5 mtrs shall be measusered and paid seperately.

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