Proposals for installation practice of single-core cables

A review of installation techniques has been undertaken for single-core power cables employed in the cable networks of industrial plant. Particular attention has been given to the performance of trefoilcable groups under short circuit, and the influence of the consequential electromagnetic forces on the supporting and securing system used to hold the cables. For the investigation, a series of short-circuit tests have been carried out, subjecting a range of typical cables to currents up to 44 kA. Based on these tests, proposals are made for securing cables using ties at spacings chosen over a range 0.3 m¿1.2 m, with cleats spaced at 4 m and main supports at 2 m.