Fast and Slow-Front Surges

The objective of this investigation was to assess the impact of fast-front current surges on jacketed cable systems using full-scale impulse tests. Items that were investigated include: 1) lead length effects, 2) cable jacket potentials, 3) counterpoise performance, and 4) multiple system ground performance.

Guidelines and recommendations for utilities were developed to help utilities improves system design and/or enhance understanding of underground systems during surges with short times to crest.

Tagged: Equipment Testing/Evaluation, P1, Engineering Guidelines, System Protection, P3-1