IEC/TS 61956 Ed. 1.0 b:1999

Current Revision
Methods of test for the evaluation of water treeing in insulating materials

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Methods of test for the evaluation of water treeing in insulating materials

PUBLISH DATE 1999

Methods of test for the evaluation of water treeing in insulating materials

Prescribes methods of test for the evaluation of water treeing in polyethylene (PE) and crosslinked polyethylene (XLPE) compounds, as a means to assess their relative performance under alternating (a.c.) electric stress, in the presence of water.

Two methods are described:

  • Method I covering the evaluation of insulating materials alone,
  • Method II covering the evaluation of insulating sandwiches consisting of an insulating material in intimate contact with semiconducting screens.
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