Use shielding with high absorptive and refl ective capacity in the far and near fi eld (copper or aluminum). Protective Earthing is a requirement to divert unwanted, potentially hazardous currents from all exposed metallic parts such as equipment chassis, racks, cabi-nets, cable trays, conduit, and patch panels for personnel safety reasons and to avoid potential damage to equipment. 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. The amount of shielding required depends on several factors, including the electrical environment in which the cable is used, the cost of the cable—why pay for more shielding than you need?—and issues like cable diameter, weight, and flexibility. Safety of Personnel: By safely channeling fault currents into the ground, proper grounding helps to reduce the risk of electric shock to personnel. This results in interference-free signal transmission and signal processing, and.
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