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Sodium Lamps & gear

Discussion in 'Electrical Engineering' started by Andy, Feb 14, 2004.

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  1. Andy

    Andy Guest

    Hi all, I have a bit of a technical question regarding a 70w HPS Sodium
    lamp/bulb with Internal Ignitor. How far can this be placed away from the
    gear? I have a light fitting about 30 feet down my garden from my house what
    I want to do is replace the normal 60w Tungsten bulb in the light with the
    70w sodium lamp but put the gear in my attic which is about 30 feet away.
    Can this be done successfully or does the lamp have to be near to the

    If it has any bearing the Voltage is 230volt 50Hz

    Thanks in advance for any ideas?

  2. Andy

    Andy Guest

    Thanks for that advice. No, I didn't take into account that I would have to
    change all the wiring to the lamp - that's going to be more of a job now. I
    wonder if I could replace the light 3amp cable going to the lampholder to a
    heavier 13amp cable (up to 3000w) would that do the job?
  3. John Gilmer

    John Gilmer Guest

    Well, in the US, most WIRES are insulated to 600 volts. The socket may not
    be rated for 600 volts but the WIRES likely are.

    The fixture itself may have a problem with 600 volts (likely rated 240
    volts) but the stuff in the walls is good for 600.
  4. Jb

    Jb Guest

    In the UK street lamps using these lamps are wired in standard 2.5mm T&E.
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