Title :
High-voltage testing of medium-voltage shielded power cables
Author :
Kelly, Lawrence J.
Author_Institution :
Okonite Co., Ramsey, NJ, USA
Abstract :
Medium-voltage power cables rated 2001-35000 V are tested using both 60 Hz AC voltage and DC voltage before leaving the cable manufacturing plant. Shielded medium-voltage cables are also required to meet the corona extinction level voltage established. These shielded cables are to be free of partial discharge at voltages well above operating voltages. In addition to these factory tests, the user normally requires a DC high-potential test after installation and sometimes a test is required when the cable is still on the reel. These various tests are also discussed
Keywords :
cable insulation; cable testing; electric breakdown of solids; high-voltage techniques; insulation testing; power cables; 2001 to 35000 V; 60 Hz; AC; DC; HV testing; corona extinction level voltage; high-potential test; medium-voltage shielded power cables; partial discharge; Cable insulation; Cable shielding; Conductors; Corona; Medium voltage; Power cable insulation; Power cables; Production facilities; Stress; Testing;
Journal_Title :
Industry Applications, IEEE Transactions on
