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  1. SBlandford
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    SBlandford Guest

    Good afternoon guys.

    My name is Scott Blandford and I'm writing this because I could use a hand, as I'm not that knowledgeable on matters to do with electrical work and the like. I'm currently writing an academic report for my course (Hospitality Management) and I have a couple of questions which I have no idea about and any help with them would be a huge help.

    Regards
    Scott

    The questions are:

    What colour should the outside sheathing of a PVC ring main cable be under new regulations?

    Why does a TV have 3 amp cartridge fuses in its plug but an electric fan heater have a 13 amp fuse?

    What would happen if you got them the wrong way around?

    What should you do if an RCD covering the kitchen keeps tripping out on a busy Saturday night?

     
  2. telectrix
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    telectrix Scouser and Proud of It Forum Mentor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    1. grey or white.
    2. fuse is fitted to match the load ( amount of current drawn.
    3. 3A would blow on the fan heater. 13A would not protect the tv flex in the event of a FAULT.
    4. take her indoors out for a meal. call an electrician on sunday morning ( we love sunday work)
     
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    Last edited: Feb 22, 2012
  3. SBlandford
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    SBlandford Guest

    Cheers for the reply telectrix. On the fourth question, I meant what would you do if the RCD system kept tripping out in a commercial environment such as a restaurant kitchen? Although if it was at home I'm sure I'd take her for a curry to ease the pain :phone:
     
  4. telectrix
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    telectrix Scouser and Proud of It Forum Mentor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    first, unplug all appliances. if that clears the fault, plug back in 1 at a time till you find the faulty appliance. if it does not clear, then all you can do is switch each breaker off and see if it's 1 particular circuit causing the tripping. then it's time to call a sparks.
     
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  5. SBlandford
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    SBlandford Guest

    Thanks mate, a very big help. Have a good day =)
     
  6. spinlondon
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    spinlondon Forum Mentor

    Location:
    Harlow Essex
    There are no requirements for the colour of an outer sheath of a cable.
    It can be any colour, as long as the conductors are correctly identified either by colour or by alpha numeric means.
    I would question why a commercial kitchen has RCD protection.
    It not a requirement of the Regulations, and to be honest, because of the damp atmosphere nuisance tripping should have been expected by the designer.
     
  7. GLENNSPARK
    Offline

    GLENNSPARK Electrician's Arms

    Location:
    west yorks.
    well you could always wire it out for a temp.......or if you wanted to be safer then just drop out the RCD and replace with a double pole incomer.....your choice of amperage rating of course......should hold anyway......
     
  8. WPD Lad
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    WPD Lad Guest

    Swap an RCD for an isolator? :0
     
  9. GLENNSPARK
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    GLENNSPARK Electrician's Arms

    Location:
    west yorks.
    come on!!....all in jest.....who the hell would do this??.....
     
  10. alarm man
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    alarm man Guest

    on the 4th question,find a good local spark sole trader or company give him all your electrical work without without question ie 3 quotes etc,that way when your kitchen goes down on a busy night he will be there quick as to get you back up,the cost of a nights lost business and the damage to your restaurants name will be small change to the bill from the spark.
     
  11. Adam W
    Offline

    Adam W Regular EF Member

    Location:
    Bournemouth
    Prior to 2004 PVC 6242Y (twin & earth) cable could be sheathed in grey or white. Since then PVC 6242YH* is sheathed grey. 6242BH (twin & earth) is sheathed white, but is made from cross linked polyethylene, which has a higher resistance to temperature and doesn't give off the same noxious fumes as PVC when burned, so fares better in the event of a fire and is generally preferred in commercial environments.

    *The H stands for 'Harmonised' which refers to the 'new' colours, ie brown and blue rather than the 'old' red and black.


    Give them that answer and they'll KNOW you cheated!
     
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