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Discuss can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW shower in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. mikejd
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    mikejd Guest

    Hi I have two 6mm csa cables in the loft each going back to a separate 30A mcb in the CU. One is redundant, the other goes to a broken 8.5kW shower. I want to fit a new 9.5kW shower and would like to join both 6mm cables together at a 50A dpst shower switch, then run a short length of 10mm csa cable from the switch to the shower. Can anyone see a problem with doing this. Both 6mm cables are approx same length (12m), there is a RCD in the CU.
    Thanks
     
  2. SPARTYKUS
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    SPARTYKUS Trusted Advisor

    Location:
    Shropshire
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    what do you think mikejd?

    what can you see as the down sides to doing it this way....if any?
     
  3. mechelec
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    mechelec Electrician's Arms

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    Here
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    Sounds great. You could always connect a fan to the circuit as well ; )
     
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  4. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    Good luck connecting 2 x 6mm cables in the isolator
     
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  5. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    cheshire/staffordshire
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    Telectrix
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    get a 8.5kWatt shower instead. use 1 6mm and keep insulation out of the way. sorted.
     
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  6. Plonker 3
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    Plonker 3 Guest

    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    What he said

    And what he said.
     
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  7. Pete999
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    Pete999 Trusted Advisor

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    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    The mind boggles
     
  8. sparks1234
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    sparks1234 Electrician's Arms

    Location:
    Hertford
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    A2electrical.co.uk
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    What ya gonna put on your test sheets?
     
  9. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    and after further consideration, boggles again.
     
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  10. Specialist
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    Specialist Electrician's Arms

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    South Wales
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    Doubt he'd be doing test sheets mate, he's a teacher not a sparky.
     
  11. sparks1234
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    sparks1234 Electrician's Arms

    Location:
    Hertford
    Business Name:
    A2electrical.co.uk
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    Thinking about that, could always put it down as a ring
     
  12. amlu
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    amlu Trusted Advisor

    Location:
    wild east london
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    2x 6mm cables wont fit into 50a switch terminals. better get a small din rail equipped enclosure and join them on a 100a isolator.
     
  13. Geoffsd
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    Geoffsd Guest

    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    Just a thought -

    9500 / 240 = 39.6A
     
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  14. sparks1234
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    sparks1234 Electrician's Arms

    Location:
    Hertford
    Business Name:
    A2electrical.co.uk
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    bet a 5WW could get em in, cut some of them pesky cores out
     
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  15. markc123
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    markc123 Trusted Advisor

    Location:
    Yorkshire.
    Re: can two 6mm csa cables each with 30A mcb in joined at 50A dps to supply 9.5kW sh

    This is no word of a lie .... I was once presented by a receptionist of a log-cabin park a piece of A4 lined paper that said ....

    Circuits :
    Sockets - Passed
    Lights - Passed
    Cooker - Passed

    Appliances :
    Fridge - Passed
    TV - Passed
    Kettle - Passed
    Microwave - Passed
    Toaster - Passed

    That was when i was working for my dad before he retired, towards the end of my apprentership - The receptionist had apparantly told him if he wants to rent his log cabin out during the summer he's going to have to get an electrical test done on it - and he presented her with that lol. That's when we were called on his behalf.

    Maybe the OP has something similar in mind, lol.
     
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