"MAINTENANCE FREE CHEMICAL EARTHING – COPPER CLAD STEEL EARTH ELECTRODES COPPER BONDED A) Maintenance free chemical earthing a well Designed earthing installation essential for any electrical installation to avoided dangerous associated with fault current. Good earthing protects both Equipment & people against dangerous step and touch voltage . A low resentence low earth termination system aims: 1. To protect security for people by limiting the stapes the touch voltage, 2. To protect installation & Equipment by providing low impedance path fault current, 3. To improve the quality of the signal by minimizing the electromagnetic noise, 4. To provide an Equipotential reference voltage for the system, 5. Expected life more than 20 years. Earthing Devices in play in important Roll in achieving maintenance free low resistance earth. B) Copper clad Steel earth electrodes made with steel core & a copper exterior to provide increased Conductivity and corrosion resistance. The electrodes are ANSI/ UL467 approved for length 3M, 17 MM dia meter with copper coating of 250 Micrones. Adherence of copper to steel rod is achieved. Through a pioneered bright acid copper plating process. Using 14 Station using copper current densities. Temperature & brightener additives to achive. Copper plating with finer grain structure and a smoother , harder more uniform surface. C) Copper bonded grounding rods. Copper bonded rods is most widely used as grounding electrodes. A. Features- Resist Corriogen better than galvanized rods allowing for approximately 30 years service life in most of the soil. B. Minimum Tensile strength of 80 thousand PSI and Straightness tolerance 0.01” per leneour foot. C. Meets the requirement of ANSI/UL467, CSA and ANSI/NEMA. D. Copper bounded rods are available various sizes from 1.5 M to 4.00 M & 10MM to20Mm in dia meter. D) Exothermic welding system:- Earth electrodes and protective conductors are joined by exothermic welding process that employ super heated/ copper alloy to make permanent maintenance free joint, avoiding unreliable screw joint. E) Conductive gel. (A)PH Compliant with skin:- B. Non irritent, non greasy, non spreads easily and evenly, C. Suitable for both short term, long term monitoring. F) Copper Rod :- AS per industry Standed like ASTM/AISI and other in material grade. G) . Earthing Pit :- Features. 1. Specially designed for earthing inspections. 2. Durable mild FRP cover & body. 3. Square top to aid block paviour cutting 4. Giving a neat edge design. 5. Circular clear opening to fit inspection Chambers. 6. Solid tray base plate. 7. Earth Enhancement Chemicals “LOHM” is an advance backfill compound, which lowers the contact resistance of the earth electrodes to earth by over 60%." 32 NOS. "LIGHTNING PROTECTION SYSTEMS:- Components of a lightning protection system 1. Rods or “Air Terminals” – The small vertical protrusions designed to act as the “Terminal” for a lightning discharge. Topped with a tall pointed needle rod centrilocated with conductor. Terminal three. 2. Conductor – 40mm wide 8mm thick G.I. STRIP-510RF. The conductor are connected to these rods to complete a safe path for lightning discharge around a structure. 3. Ground Rod – Long thick heavy rods buried deep into the earth around a protected structure. Six Nos of chemical earthing with heavy electrode. Three nos of lightning protection both the site of the Hospital building top to bottom complete connecting with chemical earthing. "