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  1. Adam_glover18
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    Adam_glover18 Trainee Trainee Access

    Location:
    Northwest
    Hi my names adam and in a apprentice and out of curiosity more than anything I was wondering if any 1 could explain how there wired? Am I right in saying there wired off the lighting circuit any help would be great Kind regards Adam
     
  2. 1shortcircuit
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    1shortcircuit Guest

    Some use the lighting circuit and 3 pole Isolator switch and others may use their own dedicated supply due to having humidity sensors.

    What extractor fan are you trying to fit?;)
     
  3. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    generally you would wire a fan say, in a bathroom, off the lighting circuit. usually, you feed a permanent live, switched live, and neutral, so as the fan would run on after the light is switched off. for maintenance purposes a 3 pole isolator is often fitted to isolate the fan without having to turn the lights off. manufacturers instructions may also call for the fan to be fused at 3A.
     
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  4. Adam_glover18
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    Adam_glover18 Trainee Trainee Access

    Location:
    Northwest
    Cheers for the reply mate none I was at me nan's before an they got one an it starts when the lights are switched on I was just wondering was all lol
     
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  5. Adam_glover18
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    Adam_glover18 Trainee Trainee Access

    Location:
    Northwest
    Thanks very much for your replys ive wonder how they were wired for ages lol
     
  6. bsrfc10
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    bsrfc10 EF Member

    Location:
    Bristol
    Domestically you can take them off of a lighting circuit, but need to go to an isolator first. Depending on type of extract fan take a 3core and earth if it needs a permanent feed and a switch wire, from the light fitting to an isolator and then from the isolator to the fan. if the extract has a manual pull cord then only a t&e from the fitting to the isolator and then on to the fan is needed.
     
  7. Mark_Burgess
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    Mark_Burgess Electrician's Arms

    Location:
    ..........
    When you have served your time and out on your first PIR, you will be cursing the fool that didn't put a fan on an isolator switch, and you will be wondering for a while why the insulation resistance is low.
     
  8. Adam_glover18
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    Adam_glover18 Trainee Trainee Access

    Location:
    Northwest
    Thanks a lot mate for your help pal
     
  9. Des 56
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    Des 56 Trusted Advisor

    Location:
    Gliese 581C
    Extracta fans

    I used to, at one time, enjoy driving them,but not any more [​IMG]
     
  10. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    is extracta an italian football team?
     
  11. Doomed
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    Doomed Electrician's Arms

    Location:
    Dorset
    I have found them wired up to the shower circuit in the past.....
     
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  12. Paul.M
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    Paul.M Trusted Advisor

    Location:
    Lost in Space
    It wasn't taken straight from the shower pull cord without using a 3A fcu about 16 years ago was it? Sorry that was me while I was learning. I learned how loud my boss could shout at me in a bathroom and I've never done it since :).
     
  13. Goody
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    Goody Solar Guru

    Location:
    London
    Or wonder why that fan (with timer) refused to come on after you did an IR, applying 500 Volts across. :rolleyes4:
     
    • Like Like x 1
    Last edited: Jun 20, 2011
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