Works Department Tender

Supply of Roof conductor holder - Stainless steel Conductor holder: With Bottom section and conductor holder stainless steel (V2A) Bottom section with Ø 8.5 mm slot in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of Cross connectors. Quick SS installation using hexagonal bolt M10X30 high-grade stainless steel in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of Providing of expansion piece with connector: For equalising temperature related length changes. Necessary on conductors length over 20 meters. For round conductor Rd 8/ALU. Tested for 100kA lightning current in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent Connector: For T cross and parallel connectors. Quick installation using hexagonal bolt M10X30 made of Aluminium. Tested as per IEC 62561. (2nos/expansion piece ). Make-OBO/Dehn/Equivalent

Supply,Installation Testing of 1 mtr vertical air terminal with mounting accessories on the flat surface to meet the requirements of IS/IEC 62305. Tested for Electrical , mechanical and chemical as per IEC 62561. Tested for 100kA lightning current in complete as per the direction of Engineer in charge. OBO/Dehn/Equivalent

Supply of Vertical air terminal with accessories:Providing of Air terminals as per IS-IEC -62305 part-3 Nominal size Ø10/16 mm aluminium rod: 3 Mtr Airterminal: semi-hard (E-AlMgSiO5 corresponds to DIN 48801) Suitable for high wind load. .Providing of Stand for Fang Fix system 16 kg with base and clamp ,made up of frost resistant concrete and clamp tested upto 100KA lightning current . .Support stone for Fang Fix system 16 kg made up of frost resistant concrete in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Down conductor : Supply of 8 mm Aluminum Round Conductor. Tested as per IEC 62561 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of Polyamide Conductor holder: With M8 female thread or diameter 7mm, M8 Screw to connect the conductor holder. Weather and temperature resistant from -35 to +90 degree Celsius tested. Conductor holder @ 1 meter distance. Tested as per IEC 62561 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of Test Joint (Folding Clamp) made of Stainless Steel -SS 304 suitable to connect 8mm round conductor and max by 30x3 mm GI strip as specified in drawing and directed by Engineer Tested for 100kA lightning current in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent Thermoplastic T 60 Junction Box 100x100x48mm made of Poly Proylene ,Flame Resistance upto 650Dec Centigrade.

Ring & vertical earthing system: Supply of Stainless Steel Flat Conductor 30X3 mm thickness from earth electrode directly in ground as required. Tested as per IEC 62561 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Providing of Cross connector for Flat: Suitable for 30mm Galvanised steel strip. Installed with 4 nos of hexagonal plate. Tested for 100kA lightning current in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of flat conductor holder- Fit: FL 30, With mounting hole 6.2 x 22 mm, With 2 cylinder bolts M6 x 16 and over-piece from hot-dip galvanised steel, Bottom section from polyamide, black. Tested as per IEC 62561 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of Providing of Plastic Corrosion Protection strip: Approx 1.1 mm thick. Width 50mm. Made of petrolatum- coated chemical fibre fabric in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of UL Listed maintenance free ,Low carbon copper coated earth rod of 3 metre electrode having diameter of 17.2 mm with copper coating thickness of 250micron tested as per IEC 62561-2 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent Supply of universal clamp made of SS to connect rod with flat conductor Make-OBO/Dehn/Equivalent Earth conductivity enhancing mineral compound shall be of 50 kg/pit tested as per IEC 62561-7,TCLP tested Make-OBO/Dehn/Equivalent The above arrangements shall be provided with Heavy duty earth champer of 5000kg load bearing capacity to ensure the safety of earthing system Make-OBO/Dehn/Equivalent

Lightnig counter - To count no of lightning strike & it can record the date and time of the lightning incident also tested as per IEC 62561-6 in complete as per the direction of Engineer in charge. Make-OBO/Dehn/Equivalent

Supply of SS screw M10X50 with PVC wall Plug n complete as per the direction of Engineer in charge Make -OBO/Dehn/Equivalent.

Surge Protection Device for Power Line Protection: Supply of Surge protection Device (SPD) Class- B , Type - I ,Especially designed to handle Lightning Impulse current 10/350 μs waveform. Connected in Main Incoming Panel - Three phase with neutral system (TT& TN-S System). Made of - Encapsulated /Non extinguising spark gap Technology , Impulse discharge current Iimp (10/350)µs -50 (KA)/Pole and Maximum Discharge Current Imax 12.5 kA (10/350)µs. Voltage protection level ,Up 1.3 KV, Response time ta 100 ns,Operating temperature range -(-)40°C to (+)80°C . Mounting on - Din Rail, Degree of protection of enclosure - IP 20, Connection Cross Section (Flexiable) - 10sqmm-25sqmm., Available LED Indication for Healthy and Failure, Testing Standards/ Certifications - IEC 61643-11 with Transperant Enclosure in complete as per the direction of Engineer in charge. Make-Legrand/Siemens/Schneider/Equivalent.

Supply Surge protection Device (SPD) Clasee B+C , Type - I+II for handling Lightning surges of 10/350 μs & Switching surges of 8/20 μs waveform.Installed in DB and Sub DB. Technology (L-N)-MOV with built in thermal fuse, (N-PE)-Spark Gap Encapsulated / Non-exhausting, Maximum Continuous operating Voltage -320V per pole, Nominal Discharge Current In 30 kA (8/20 µsec), Maximum Discharge Current Imax 40 kA (8/20 µsec).Lightning Impulse Current 7 kA (10/350 µsec)/pole 25 kA (10/350 µsec) Total.Voltage protection level ,Up 1.3 KV, Response time ta -(L-N) -25ns ,(N-PE) 100 ns,Operating temperature range -(-)40°C to (+)80°C . Mounting on - Din Rail, Degree of protection of enclosure - IP 20,Standards/ Certifications - IEC 61643-1 in complete as per the direction of Engineer in charge. .Model : V25 B+C-3+NPE-320 with Transperant Enclosure. Make-Legrand/Siemens/Schneider/Equivalent.

Copper Plate Earthing: Supply of Copper plate earthing 1) 600X600X3mm Copper plate 2) 2runs of 35X6mm Copper strip of 2.5meter length 3) 50mm Dia GI pipe, 2.5meter length Make-OBO/Dehn/Equivalent Earth enhancement material with very low resistivity shall be placed around the rod in an augured hole in a slurry state. shall be of 100 kg/pit, tested as per IEC 62561-7,TCLP tested , *) Having resistivity less than 0.2 Ohm m. *) Sulphur Content is less than 0.25%. *)P.H Value 8-8.5. *) Corrossion Resistance greater than 4 Ohm meter square *) TCLP : Toxicity Leaching Characteristic Leaching Properties - Passed Make-OBO/Dehn/Equivalent (100Kg/Pit). The above arrangements shall be provided with Heavy duty Concrete earth champer of 5000kg load bearing capacity to ensure the safety of earthing system , Dimension 600mm(L)x600mm(W)X300mm(H) with arrangement to takeout the cover during maintennace in complete as per the direction of Engineer in charge.

Supply of Main potential equalisation to VDE 0100 Part 410 and Part 540, and also lightning protection potential equalisation to VDE 0185-305 (IEC 62305) • Insulation feet • Quick, simple assembly of connection conductors to the contact rail using lock bolts M10 • The high-grade stainless steel versions (V2A) are suitable for outdoor use • Complete with anchors and bolts for wall mounting in complete as per the direction of Engineer in charge.

Installation of The above arrangements including all accessories as per Direction of Engg. In charge.