Cable Temperature Effects of Limited-Distance Heat Sources

Perform full-scale field testing to confirm the analytical predictions of cable temperature rise (and resulting need for cable derating) due to heat sources, such as other cables, crossing or in parallel to a cable for a short distance. Included are tests of temperature rise in the short tap sections at padmounted equipment where incoming and outgoing cables may be laid in the same trench for the distance between the equipment and the main cable trench. Previous analytical work shows the need for significant derating in this situation.

Tagged: P7-7, P7, Equipment Testing/Evaluation, Engineering Guidelines, Engineering Analysis Software, Economic Analysis