Abstract

The paper reviews factors that may result in ageing of the main screened insulation of polymeric cables and concludes that for the time being the extruded polymeric insulants used in high voltage cables do not appear to exhibit property changes that can be measured easily or that can be said to be significant in terms of cable life reduction when contamination from external sources, such as water, oils and Sulphur are avoided. For accessories, the same may be stated.

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