Airports Authority of India CNS Manual Vol. V Ver. 2.0Lightning, Surge Protection and EarthingSystem for CNS Installations

GI Earthing Vs Copper EarthingAs per IS 3043, the resistance of Plate electrode to earth (R) = (r/A) X under root(P/A).Where r = Resistivity of Soil Ohm-meter.A=Area of Earthing Plate m3.The resistance of Pipe electrode to earth (R) = (100r/2πL) X lo

Sl. No. Item Description UoM Comments MSETCL side SN EARTHING 19.00 "EARTHING & LIGHTNING PROTECTION SYSTEM -Supply installation testing & commissioning of Earth mat comprises preparation of existing earth, welding of MS flat and appl

Page 1 of 8Airports Authority of IndiaATS Complex, Chennai Airport, Chennai -600027.No: AAI/CNS/TXSTN/Earthing/15-16 Date: 22-09-2015Notice Inviting QuotationName of work: Supply of Earthing materials and installation of Three Earthing pits atT

Earthing Supplier in RailwayAPPENDIX IIICODE OF PRACTICEFOR EARTHING OF POWER SUPPLY INSTALLATIONS FOR 25kV, ac, 50Hz, SINGLE PHASE TRACTION SYSTEM(This is a reproduction of RDSO's CODE No. ET1/PSI/120 (2/91) )1. Scope1.1 This code of p