Tender For Supply Installation Testing and Commissioning of Ese Type 03 Lighting Arrestors

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Tender for Supply Installation Testing and Commissioning of Ese Type 03 Lighting Arrestors , Supply Installation Testing and Commissioning of Ese Type 03 Lighting Arrestors , Plate Earthing As Per Is:3043 With Copper Earth Plate Of Purity 95% Of Size 600Mm X 600Mm X 3.0Mm By Embodying 3 Mtr. Below The Ground Level With 20 Mm Dia. G.I. ‘B Class Watering Pipe ,Including All Accessories Like Nut, Bolts, Reducer, Nipple, Wire Meshed Funnel, Heavy Duty Weather Proof Poly-Propylene Earth Inspection Chamber As Per Requirement Of Is/Iec 62305 And Tested As Per Iec 62561-5 With Lockable Jam Free Lid Suitable For Safe Working Load 60 Kn Of Round / Square Size 250 Mm, And Height 250 To 300 Mm. And Embodying The Pipe Complete With Alternate Layers Salt And Coke/ Charcoal, Testing Of Earth Resistance For Value Of 5 Ohms Or Less As Required. , Supply & Laying Following Size B ‘ Class , G.I. Pipe Confirming To Is : 1239 P - 1 ( 2004 ) With Accessories Like Bend, Socket Etc. For Laying Earth Conductor/ Strip / Cable In Ground/ Surface/ Recess As Required. (Earth Excavation Will Be Paid Extra) 25 Mm Dia. , Lightning Surge Counter Designed To Record And Display Lightning Strike Events. The Counter Shall Feature A 3 Digit Lcd Screen (0-999 Events) For Clear Event Tracking And Operate On A Battery Powered System. , Supply, Installation, And Testing Of An Early Streamer Emission (Ese) Air Terminal, Designed And Tested In Accordance With Nfc 17-102 Standards, With Delta T ( Initiation Advance ) Time Tested And Certified By An Ilac-Accredited High-Voltage Test Laboratory. The Air Terminal Shall Be Constructed From Corrosion-Resistant Materials To Ensure Durability And Long-Term Performance. It Shall Be Installed At The Highest Point Of The Structure And Mounted On A Mast Of Minimum 5.5 Meters Or As Determined By The Initiation Advance Time (Δt) Calculations, Ensuring The Required Protection Radius. The Protection Radius Shall Be Determined As Per Nfc 17-102, Based On The Level Of Risk Protection Required (Levels I To Iv), With Proper Earthings Integration For Effective Lightning Dissipation. Es-60 Triggering Advance Time (Δt) -60Μs, Protection Radius (Meters) As Per Highest Risk 79 Mtr. , Supply, Fabrication, And Installation Of A Galvanized Iron (Gi) Pipe Support Structure ( Lightning Mast ) With A 350 Mm × 350 Mm Base Plate And 10 Mm Thickness For Secure Mounting. The Mast Shall Support The Ese Air Terminal And Include Provisions For A Guy Wire Clamping System To Ensure Stability. It Shall Provide A Secure Arrangement For Fixing The Air Terminal And Have Appropriate Termination Point / Arrangement For Connection To The Down Conductor. Total Mast Height : 8-10 Meter , Supply And Installation Of An 8 Mm Aluminum Down Conductor, Designed For Efficient Dissipation Of Lightning Currents. The Conductor Shall Be Securely Fixed Using Corrosion-Resistant Clamps At Appropriate Intervals, Ensuring A Continuous, Low-Resistance Path From The Air Terminal To The Earthing System. The Conductor Length Shall Be Determined Based On Actual Site Conditions, With All Necessary Accessories, Including Clamps, Connectors, And Fasteners. , Specifiacation As Per Tender Details ( Technical Specation Sheet Page No 23 To 25)