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

Document RevisionsRevisions to the IALA Document are to be noted in the table prior to the issue of a revised document.Date Page / Section Revised Requirement for RevisionDecember 2005 Entire document Reformatted to reflect IALA documentation hi

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

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