Cable Gland Connection Test

Cable Gland that are connected in a cross-linked manner are not to be tested for DC voltage withstands, as the insulated part of a cable that is connected by a cross-link is extruded with a thermoplastic plastic and filled with a cross-linking agent. Insulation of cables and cable joints accelerates deterioration and shortens the service life if operated in a DC field.

The new Cable Gland cross-linked cable project should be used AC test methods. When AC test method is used, the output sinusoidal voltage waveform is close to the operating condition of the cable. The test voltage is lower than the DC voltage withstand test value, and no harmful insulating material is injected into the charge space during the test. At the same time, to avoid the damage to the cable, Cable Gland, but also the construction process can be found defects in time to ensure the normal cable life, to reduce the insulation medium of electrical branches, water branch discharge and other effects.

In order to avoid the tiny cracks in the construction process or tiny defects caused by extrusion during the installation, the measurement of partial discharge can be introduced when testing cables and Cable Gland to avoid these gaps and defects in the future Gradually developed during operation, expanding, thus threatening the safe operation of equipment.

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