PROVN OF LIGHTENING CONDUCTORS SYSTEM AT VARIOUS BLDGS AT MIL STATION LANSDOWNE.

Amount

S&F aluminium lighntning arrestor, 12mm dia and 1.3m in length with 5 spikes and base plate 8 x 8Cm for building protection system complete all as specified and directed.

S&F brass lightning arrestor 12mm to 20mm dia and 1.0 m in length with 5 spikes and base plate 9 x 9cm for building protection system complete all as specified and directed.

S&F test terminal block, made of gun metal or phosporus bronze size 75 x 75 x 25mm drilled and screwed including 03 Nos, 8mm dia 25mm long hexa head scew complete all as specified and directed.

S&F aluminum strip 25x3.15mm with saddles and fixing screws etc for roof conductors and down conductors above ground complete all as specified and directed.

S&F galvanized iron strip 32x 6mm burried in ground/ on surface/ on wall complete all as specified and directed.

S&F 40mm bore GI tubing, light grade with fittings with and including MS clamps, Nut & Bolts for fixing to wall or laind in floors complete all as specified and directed.

M&L for PCC (1:2:4), type B1, using 20mm stone aggregate for installation of air termination rod complete all specifed and direccted

S&F epoxy electrical Insulator (red) for lightning arrester and GI/ Copper Strips suitable to insulated strip from wall/ floor/ ceiling including drilling holes to aluminium strip for fixing insulators and providing 2 nos rawl plugs and two Nos of rubber wahers to avoid any leakage in roof of appropriate size for sixing insulator to wall or floor or ceiling complete all as specified and directed.

S&F Copper strip 20x3.15mm burried in ground/ on surface/ on wall complete all as specified and directed.

M&L for UL listed, CPRI tested at 25 KA fault current for one second maintenance free, low carbon High tensile copper bonded steel earth rod of 10 feet long having diameter of 17.2mm with copper bonding thickness of 250 micron tested as per IEC 62561-2 & is provided with universal clamp made of SS to connect rod with flat conductor. Earth enchancing compund shall be of 30 Kg/pit (resistivity is 0.12 ohm meter) tested as per IEC 62561-7, by lab. The above arrngements shall be provided with heavy duty earth poly plastic cover of 6000Kg load bearing capacity, earth electrode shall be covered with not less than 30 Kgs of earth life compund. The excavaed gap shall be back filled with excavated earth and shall be properly consolidated with water, the earth pit entry PVC conduit is to be sealed with bitumen compound, the copper eath strip of size 20 x 3.15 mm from earth bus through PVC conduit is connected to earth test point by means of nut, bolts and washers, necessary meggar is to be done in the presence of the Engr-in -Charge and the reading should be as per IE standards and if desired results are not obtained the earthing will be redone at no extra cost . The earthing shall comply to IS 3043 Contractor has to provide manufacturer drawing and get if approved from Engr-in -Charge and AGE(I) before executing the work.

ADITI CONSTRUCTION CO

Amit Engineering