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  • Users: Xuewei
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  1. Xuewei

    Distribution Substation - Clearances

    What does IEC say about the clearance?
  2. Xuewei

    Insulation testing of cables

    For HV cable, there is a thin layer of semiconductor (black)outside the insulation, and outside the semiconductor is another lay of screen(normally copper). This screen is always grounded in any IT or TN system. (It may not have this screen for UL cable). The cable is marked Uo/U. (U=1.732*Uo)...
  3. Xuewei

    Lightning protection for ? Systems

    Which IEC code describes the requirements for lightning protection?
  4. Xuewei

    Insulation testing of cables

    Normally for HV cable, there is a grounded screen outside the cord insulation. Does it have any phase to phase rating? For the 6K/10KV rating cable, can I use it to carry 10KV?
  5. Xuewei

    Insulation testing of cables

    Another question: A cable marked with 600/1000V. Is it rated for 600 or 1000?
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