Stray Current Electrolysis—Fifth Interim Report of Technical Unit Committee T-4B on Corrosion of Cable Sheaths*,, **

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Abstract Data collected from 19 companies operating power and communication cables indicates that:Communication cables generally are bonded at each manhole.Communication cables may be bonded to other subsurface structures to equalize potentials. Fre-quently this follows joint electrolysis surveys when the installation is made after agreement is reached among the owners of affected plant. Local electrolysis committees are useful in these agreements.Bonding of power cables usually is done to prevent personnel hazard from fault currents, to insure low impedence path of fault current return, aid in corrosion control, reduce sheath losses on single-conductor cables and reduce noise in communication circuits. Size of bond wire is related to probable fault current. 3.6.9