Measurements can be made for selected voltages or over a period of time at a fixed voltage. A poorly performing cable system tends to lose more energy per AC cycle. Dielectric loss:Īn assessment of the electric energy lost per cycle. It is intended to determine the presence, likelihood of future failure and, for some tests, locate degraded regions that may cause future cable and accessory failure. Diagnostic test:Ī field test made during the operating life of a cable system. Cross-linked polyethylene (XLPE):Ī thermoset unfilled polymer used as electrical insulation in cables. Cable system:Ĭatenary continuous vulcanization extrusion line for extruded dielectrics.
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