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

OPR lightning protection systemsExternal lightning protectionMain catalogABB OPR lightning protection systems | 1Lightning mechanism and location 2Lightning protection technologies 3Lightning protection risk analysis 8Lightning protection tec

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

EXTERNAL LIGHTNING PROTECTION SYSTEM AS PER INDIAN STANDARDSIS/IEC 62305-3 & NBC-2016GeneralThere are no devices or methods capable of modifying the natural weather phenomena to the extent that they can prevent lightning discharges. Lightning fl