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Photocell

  • 23-10-2009 1:11pm
    #1
    JOHNPT
    Closed Accounts Posts: 517 ✭✭✭


    Can anyone advise on photocell lighting.
    Basically there is 3 outdoor fluorescent lights in a veranda. There is a switch inside controlling all 3 and they are wired in 3 core nymj. Can I just cut the outdoor cable install and photocell so there will be a live neutral and earth feed to the photocell and a live neutral and earth from the photocell to the lights.

    Thanks in advance


Comments

  • #2
    Pete67
    Registered Users, Registered Users 2 Posts: 1,257 ✭✭✭Pete67


    Check what the photocell contacts are rated to switch against the total lighting load. If the load is within spec then yes, otherwise a contactor will be required. The best place for a contactor is in the CU which will necessitate additional cabling.


  • #3
    JOHNPT
    Closed Accounts Posts: 517 ✭✭✭JOHNPT


    It will be switching three 2D fittings. Would that be too much of a load? What is the normal load photocells are rated to switch


  • #4
    Pete67
    Registered Users, Registered Users 2 Posts: 1,257 ✭✭✭Pete67


    A stand alone external photocell I have here is rated for 1500W incandescent lamps or 1200W for fluorescent. If you get a similar one you should be fine with three lamps.


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