Name of Work: SUPPLY AND CONSTRUCTION OF SECURITY FENCE (WELD MESH)
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Item Description
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Weld Mesh Panels should produced by electrical resistance welded galvanized wires and subsequently powder coated as per below spec.Mesh Wire : Horizontal wire, Dia 4.0 mm (+/- 0.05mm) : Vertical wire, Dia 4.0 mm(+/-0.05mm) Mesh Size: Mesh Size of 12.7 X 76.2 mm along Mesh ( Mesh Wire: IS 280 2006). Panel size : 2667 x 955mm : 24.44 Kg (+/- 5%). Metallic Coating : The wires should be hot dip galvanized as per IS 4826-1979 and amendment thereafter Powder coating:The panels are after welding subsequently polyester powder coated. Layers has a thickness of 60-80 microns.Color: RAL 6005 Powder coating should withstand 1000 Hours of salt spray test. (Type Test Certificate to be provided). Wire Tensile Strength: Min 500 N/Sq.mm. Weld Strength: The average weld shear strength of 4 welds taken at random shall not be less than 50% of the breaking strength of the vertical wire. Note: High Security Weld mesh is been installed at the bottom. Ref Drawing No: NC/LC/A8/V2.2. Material: MS. Mesh Wire: Dia: 4mm: IS 280 2006. Coating: IS 4826 – 1979. Weld Mesh as per : EN 10223-7, EN 10245-1.
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Concertina coil: 1050 mm Dia / 56 Loops/ 2.5 mm core wire.Coil Diameter: 1050 mm. Type of Strip: Heavy Galvanized (IS 1730).Type of Core wire: Heavy Galvanized (IS 280-2006). Core wire Diameter: 2.50 mm Dia. Zinc Coating to Strip: Minimum 200GSM/Sqmm. Zinc Coating on wire: Minimum 275 GSM/Sqmm (IS 6745-1972 reaffirmed 2006). Tensile Strength of wire: 1400 – 1500 N/sq.mm.Weight: 14.63 Kg (+/- 5%). Number of loops: 56.Blade Length: Tear Blade length 22 mm.Barb Profile: Medium Blade (MBBT). Distance Between Barb: 35 mm. Stretchable length: 12 mtrs. Type of Clip: Hardened Steel in Galvanized steel.
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Fence Post: Type : Circular Hollow Material: MS steel Tube (IS 1161). Dimensions: 76mm Dia, 3.2 mm (+10%) Thickness. Length : 3345mm (+ 5%) (2745 mm above ground level + 600 mm under the ground level). Coating: Hot Dip galvanized as perIS 4736 andamendmentsthereafter.
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Clamps:Omega Clampwith profile cover plate to tighten the mesh panel along the posts with diameter 76 mm,35mm Width and 3mm Thick Flat - 35mm Width, 3mm Thick (MS Strip as per IS 1730) (7 Nos per post). Each clamp will be supplied with a pair of SS 304 mushroom headed, square necked bolts and security nuts M8 x 50 (IS 8535-1987).Coating: Hot Dip galvanized as per IS 2629/IS 4759/ASTM A 123.
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Straining Y-Arm for supporting top PTCC: Material: MS Angle Size: 50x50x5 mm. Length: 750 mm of one arm. Coating: Hot dip galvanizing as per IS 2629 / IS 4759 /ASTM A 123. Outer diameter 79 mm of sleeve cap, Bolted on the top of the fence post. Straining post will be installed at every 2.5 meters. Accessories for fitting Y Arm :-(i) Mushroom Head Bolt with breakable head safety nut (M8X120) (2 Nos per post): Material : SS 304.
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High Tensile Barbed Wire: Material: High tensile heavy Galvanised mild steel wire for Line wire & High tensile barb wire is made of higher carbon steel approximately 0.28%. Specification of Line wire - Diameter: 3.15 mm, Coating: Zinc Coating 290 GSM, Tensile strength: 1450-1650N/Sqmm. All as per IS 432-2. Specification of Barb wire- Diameter: 2mm, Coating : Zinc coating 240 GSM, Tensile Strength : 450-600 N/Sqmm, Barbing Pitch: 100 mm( In conformance with IS 4826-1979), Barb Type : 4 point IOWA Style, Strands: Single. (6 Row)
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Anchor Rod : 10 mm dia 300mm long GI Rod tie with fence post atbottom using tie wire. (02 Nos for each post)
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Cement of 43 grade OPCin sealed bags each weighing 50 kgs.The date of manufacture of cement should not be more than one month prior to the date of delivery.Make : JK Laxmi/ACC /Ambuja/ Ultratech or Equivalent to IS 8112/1989
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River sand coarse as perIS-2116-1980.
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Crushed Stone aggregate20mm grade conforming to IS 383-1970.
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Supply of store at Rajouriand Poonch, shifting of store from FOR to worksite and construction of 02 KM of Security Fence (Weld Mesh)
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