Generally a 12 inch to 24 inch soil separation is recommended as a safety barrier and for locating purposes. Other than that you haven't provided much information, given. Abstract: The design, installation, and protection of wire and cable systems in substations are covered in this guide, with the objective of minimizing cable failures and their consequences. Copyright © 2008 by the Institute of Electrical and Electronics Engineers, Inc. This safety zone also mitigates most EMI, and power induction issues. When laying cables in parallel at crossings over railways, highways, and also in places where mechanical damage is possible, the distances between them within the protective zone must be at least 250 mm (for cables up to 10 kV) and 500 mm (for cables 20–35 kV). Distance between parallel laid. The electrical energy of the power cables can have significant effect on the performance and safety of the communications plant. Minimal distance will be the one you have between your circuit on a single pole. In practice, depending on work methods you might want to have enough room to put boom truck to work on your lines so the practical distance will.
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