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Mr Alwin Paul

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  • Mr Alwin Paul replied to the topic 'hdpe for ehv cable' in the forum.
    Hi Kumar

    HDPE offers better mechanical properties when compared to PVC. Its harder, better resistant to moisture ingress, termite / rodent resistant due to hardness. This is one good reason why more often HV/EHV cables are jacketed with HDPE.

    In most cases to ensure the jacket isn't damaged after cable transportation and installation, HV / EHV cables shall be subjected to DC Voltage integrity test on jacket as per IEC 60229 recommendations. To enable this test, a conductive coating (eg. graphite) is applied on the jacket.

    Trust this shall be useful.
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    kunena.post 89 days ago