Interference and Working in the Area of Railways

If the protection current requirement for below-ground storage tanks and pipelines is large, then the protection current must be fed in through several anodes, in order to reduce the interference of the numerous underground installations near railways. Where space is restricted and with low current output per anode, impact anodes, e.g., round bar steel, should be used. 

Drainage tests in the neighborhood of tracks should only be carried out with the agreement of the railway personnel because of the possible interference with the railway signalling system. Since pipelines near to electrified railway systems 

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