Cable Testing

Cable testing is conducted in order to: chart the gradual deterioration over time of old cable; acceptance proof after a new cable has been installed and before it is energized; for verification of splices and joints; and for certain repair operations.

During new installations of cable and switchgear it is often recommended and required to stress the electrical insulation of cables and switchgear to ensure that there are no defects to the device due to manufacturing flaws, transportation damage or improper installation.

These tests are usually performed using an AC or DC hipot, depending on the specification and application.

Using specially designed equipment and following NETA, IEEE and industry standards Burlington Electrical Testing Company provides the expertise to properly test your cables and equipment in a safe and expeditous manner.

By stressing this equipment in a controlled environment before initial energization you are greatly limiting the chances of a catastrophic fault.

Very Low Frequency (VLF – 0.1 to 1.0 HZ) testing is another method for cable testing. VLF applies sinusoidal voltage to the cable under test for a period of 15 minutes to 45 minutes to determine the dielectric integrity of the cable. VLF testing is effective for all types of cables, their termination and joints, and is suitable for testing both new and service-aged power cables.

Detecting the problems before putting in service allows for repairs to be made preventing damage and increasing personnel safety.