72117/6675/62/2020-21/OWC

PROVISON OF MTA STORES IMPORTANT - Item will be supplied as per approved make and Terms & Conditions of RFP. Basic rate of BOQ to include freight charges (unloading & stacking). These charges will not be paid seperately. FOR : Karu, 117 Engineer Regiment.

Lightening Conductor with earthing:- Lightning Conductor made of copper Tube 150 cm long x 25 mm dia with five copper prongs of length 15 cm each fixed to copper ball of dia 50mm and 4mm thick with securing arrangement. Bottom 40 cm portion of the copper tube will be covered with PVC insulating material to avoid direct contact between the building and the lightening conductor. GI plate of 60cm x 60cm x 3mm will be provided for earthing purpose and will be placed 2.5 m below GL. GI plate and copper conductor will be connected by using 4mm dia GI conductor wire. GI conductor wire will pass through PVC conduit pipe to avoid direct contact between building and GI wire. Necessary insulated MS clamps for fitting PVC conduit pipe with building will be provided. For effective earthing of the struck lightening, moisture near GI plate needs to be maintained. Moisture will be maintain by covering GI plate with 15cm alternative layers of 25 kg wood charcoal granules size not less than 10 mm (in HDPE bags), 25 kg edible rock salt granules (in HDPE bags) complete as per details given in the drawing attached. Two GI funnel fixed with 20mm dia GI pipe of length 1.5 m will be provided for passing GI conductor wire and supplying water at 2.5 m depth. Man hole will be covered by using PVC cover of size 45cm x 45cm over PCC pit. 15 cm long Termination point Aluminum strip of size 25mm x 3mm having holes at both ends for fixing GI conductor wire coming from copper tube and GI plate with suitable nuts and bolts, will be provided at plinth level to check the resistance of the earthing.

Home UPS (Inverter) 1500VA,1700VA including 02 x batteries with following specification:- (a) Sine Wave Inverter. (b) Capacity 1500 VA, Rated power 1260 W. (c) 24 month warranty. (d) 12 Volts each (Total 24 Volt) capacity - 02 x Batteries (Tall tubular). Make:- Exide/Microtek/ higher quality with warranty. (e) LED Disply for status of power back-up/ battery charging time in hours and minute. (f) MCB protection from Input Mains. (g) Bypass switch for supplying output directly from grid in case of Home UPS fault. (h) Inverter Case/ Stand/ Trolley for both inverter & batteries. Make:- Microtek/ Luminous or higher quality.

Revolving Office Chair with armrest as per approved sample only.

M/S MURTSEY ENGINEERING WORKS

RINCHEN OLTHANG