ITU K.8:1988
ITU K.8:1988 Separation In The Soil Between Telecommunication Cables And Earthing System Of Power Facilities
Table of Contents
Introduction1Scope
2Generalconsiderations
3Typeofpowernetwork
3.1Networkswiththeneutralpointeartheddirectly
orthroughalowimpedance
3.2Networkswiththeneutralpointearthedthrough
anarcsuppressioncoil
3.3Networkswiththeneutralpointisolatedfrom
earth
4Locationswhereearthpotentialrisemayoccur
4.1Powerstationsandsub-stations
4.2Powerlinetowers
5Magnitudeofearthpotentialrise
6Zoneofearthpotentialrise
7Durationofearthpotentialrise
7.1Networkswiththeneutralpointeartheddirectly
orthroughalowimpedance
7.2Networkswiththeneutralpointearthedthrough
anarcsuppressioncoil
7.3Networkswithanisolatedneutralpoint
8Minimumseparationinsoilbetweenburied
telecommunicationcablesandpowerearthingsystems
9MeasurestobetakentoavoidhazardsfromEPR
References