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Description / Abstract:
This guide covers the diagnostic testing of new or service-aged
installed shielded power cable systems, which include cable,
joints, and terminations, using PD detection, measurement, and
location. Partial discharge testing, which is a useful indicator of
insulation degradation, may be carried out on-line or by means of
an external voltage source. This guide does not include the testing
of compressed gas insulated systems or continuous on-line
monitoring at normal service voltage.
Purpose
This guide describes diagnostic methods capable of detecting and
locating partial discharges from defects and damage in installed
shielded power cable systems. The results of PD tests are used to
assess the condition of cables and accessories.