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What size cable for Electric Gates 120m from House?

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  • 19-11-2008 1:11pm
    #1
    collsoft
    Registered Users Posts: 254 ✭✭


    I am installing electric gates that are located about 120m from the house and I wanted to check what size cable I should use.

    I was thinking that 10sq SWA should be good enough.


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    #2
    Avns1s
    Registered Users Posts: 3,422 ✭✭✭Avns1s


    What's the rating of the electric motors?

    10sq. sounds like massive overkill to me.


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    #3
    collsoft
    Registered Users Posts: 254 ✭✭collsoft


    The motors are actually 24 or 48 Volt as far as I know, but there is a transformr that needs 230V etc. I am nt sure what thepower consumption is.

    I was planning on bringing a supply dow to the gate and use it to power gates and lighting at pillars and up the driveway.

    I was just worried about voltage drop over the distance.


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    #4
    davelerave
    Closed Accounts Posts: 1,712 ✭✭✭davelerave


    Its normally poly-poly for the intercom and 2.5 for the motor for a short run .i put in 3 by4 recently for a 70metre run but i didnt do any maths on it


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    #5
    enmac
    Registered Users Posts: 98 ✭✭enmac


    according to ET101, if the motor was drawing 2 amps (500watts) then you would need 10square - these figures are quite conservative so you may get away with 6 sq but i wouldn't go below 6 square - especially if you're thinking of adding to the circuit in the future


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    #6
    davelerave
    Closed Accounts Posts: 1,712 ✭✭✭davelerave


    I asked a guy at a company that installs these he says for over 100m use 4sq and over 200m use 6sq and 'outdoor cat 5 'for the intercom


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    #7
    fishdog
    Closed Accounts Posts: 1,113 ✭✭✭fishdog


    This question can not be answered until the OP says what size the load is!
    The motors are actually 24 or 48 Volt as far as I know
    They can be, but are often 230 volts. This will not effect cable size as the transformers would be at the gate.


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    #8
    davelerave
    Closed Accounts Posts: 1,712 ✭✭✭davelerave


    Ya i .guess the motor depends on the gate


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