Forums » Electrical Engineering

HV room

    • 42 posts
    April 27, 2020 11:28 PM PDT

    The  HV cable are coming to the HV room through raise floor. Should the HV cables in raise floor be directly laid or in a cable tray.


    • 29 posts
    April 28, 2020 12:39 PM PDT

    I would always, always put HV cables in a tray.

    • 75 posts
    May 3, 2020 2:45 PM PDT

    HV is usually considered 115KV and up.  (ANSI C84.1)

    I have never seen HV cables run inside under a floor.  So, I'm probably not a good person to ask.

    I would start with, What is the cable type?  What is the voltage? 

    There is likely an industry spec for the cable installation.  It will not be part of the NEC.  I don't know about IEC specs.


    • 71 posts
    May 4, 2020 6:50 AM PDT

    @Ronnie: it is not essential to have HV Cable in a cable tray. It depends on you to have in a cable tray or without cable tray.

    @Carl: Based on IEC, above 10kV you can call HV or MV.