Double the electrics.

Discussion in 'Tech/Mech General' started by Bryan, Sep 20, 2010.

  1. Bryan

    Bryan Read Only Funster

    Joined:
    Jul 19, 2007
    Messages:
    2,096
    Likes Received:
    342
    Hi,

    If I have 7 amp hookup can I connect my camper to two ehu connections instead of one and get 14 amps?

    If so, is it as easy as using a splitter (see pic) in reverse?

    Thanks
    Bryan
     

    Attached Files:

  2. slobadoberbob

    slobadoberbob Read Only Funster

    Joined:
    Jun 1, 2009
    Messages:
    6,159
    Likes Received:
    1,970
    Location:
    Kent, garden of England
    interesting argument


    OK, we must have an expert that can solve this one..makes for an iteresting argument.. who gets what at what amps?:Blush:

    Bob:thumb:
     
  3. Dodgey

    Dodgey Funster

    Joined:
    Oct 15, 2007
    Messages:
    1,603
    Likes Received:
    227
    Location:
    Gone RVing
    I know the yanks do this, you can buy the widgets to achieve:Eeek:

    I know if we turned all we have on we could exceed 7 amp, but why would we/you?

    Just curious?
     
  4. slobadoberbob

    slobadoberbob Read Only Funster

    Joined:
    Jun 1, 2009
    Messages:
    6,159
    Likes Received:
    1,970
    Location:
    Kent, garden of England
    like sticking your finger in


    Simon, Just like sticking your finger into the elctric fly swat to see if it works?:Blush:

    Bob:Eeek:
     
  5. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    Site EHU supplies are run in three phases + neutral .. one phase per socket .

    it would work if both on the same phase but as you don't know this .. it's a big NO .. do not do this
     
  6. Dodgey

    Dodgey Funster

    Joined:
    Oct 15, 2007
    Messages:
    1,603
    Likes Received:
    227
    Location:
    Gone RVing
    Thought about it, but not daft enough to try, now lets see how many admit to it:Rofl1:
     
  7. Geo

    Geo Trader - Funster

    Joined:
    Jul 29, 2007
    Messages:
    9,507
    Likes Received:
    5,561
    Location:
    Mansfield,Notts
    During a recent electrical safety inspection and certification carried out by my oldest boy Simon. at Newark one of these systems was found on a RV It was pointed out that
    Although unlikely, it is possible to pick up two different phases
    and input 480Volts:Eeek: using this method
    Go for it brian your electrical problems will be over:Doh:
    Geo
    Make my day
    Ask yourself Punk!!!
    Do you feel lucky
     
  8. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    Hi Bryan, I could well be talking b-----ks here but most UK camp-sites are 10 OR 16 amps so why is your van limited to 7 ? Does it trip above 7 ? If that is the case then fit a bigger trip.
    terry
     
  9. Geo

    Geo Trader - Funster

    Joined:
    Jul 29, 2007
    Messages:
    9,507
    Likes Received:
    5,561
    Location:
    Mansfield,Notts
    No Bryan is just greedy he knows there is 48 amps out there on a 16 amp site and he's proberly already working on a "relay" powerd self circulating power input that will suck 16 amps off each phase in turn:Doh:
    Geo
     
  10. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    :Rofl1: or his new lappy takes more power than he thought
    terry
     
  11. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    or planning an extra special Christmas display, the glowing RV ..... :Eeek:
     
  12. GJH

    GJH Funster Life Member

    Joined:
    Aug 20, 2007
    Messages:
    27,229
    Likes Received:
    34,415
    Location:
    Acklam, Teesside, originally Glossop
    I'm sure Haganap will tell us how enjoyable it is at Lincoln :Rofl1::Rofl1:
     
  13. Bryan

    Bryan Read Only Funster

    Joined:
    Jul 19, 2007
    Messages:
    2,096
    Likes Received:
    342

    Hi Terry,

    Van is not limited to 7 amp, just asking the question; same question could have been worded 2 x 16 amps to get 32 amps but I wanted to take the cable used out of the equation. :Smile:


    Bryan
     
  14. Bryan

    Bryan Read Only Funster

    Joined:
    Jul 19, 2007
    Messages:
    2,096
    Likes Received:
    342
    Thanks for all the quick replies.

    The consensus seems to be a resounding NO! :Rofl1: due to phases or something...That I know nothing about :Doh:

    So given that MY way is not so clever, is there a way to do it at all?

    Thanks

    Bryan
     
  15. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    26,421
    Likes Received:
    25,078
    Location:
    Macclesfield
    Not if Jim's right and there is a risk of more than one phase.

    If you tested for single phase ( 0V from live to live ) then you could in theory split your wiring into two semi-equal loads and have two hook-ups, you'd use a splitter if you found a single 16A supply.

    Hmmm. Talking theoretical, there is a way with 2 phases. Two BIG chargers, one off each phase and you run everything of a whopping inverter. This would work with single or two phases. Might be able to squeeze a relay in there somewhere. There might be a voltage issue because all of a sudden you are in command of a 390/415V system. Different regs ?

    See if you can find one 12V 150A and one 12V 300A charger before you get too excited. And a 3 or 4kW inverter and some very thick wire.

    Can NASA copy with 300A ?
     
  16. Terry

    Terry Funster

    Joined:
    Dec 27, 2007
    Messages:
    10,722
    Likes Received:
    6,224
    Location:
    South yorks
    Lost me Bryan :Rofl1: I suppose you could wire the left side of the van to work off one hook up and the right off tother :Rofl1::Rofl1:
    terry
     
  17. tofo

    tofo Funster

    Joined:
    Oct 1, 2007
    Messages:
    6,587
    Likes Received:
    6,213
    Location:
    Kirby cross further from londin
    and convice the neighbouring pitch its their lead
     
  18. Simannjo

    Simannjo Read Only Funster

    Joined:
    Apr 18, 2009
    Messages:
    31
    Likes Received:
    0
    Location:
    Nottingham.
    Connecting 2 leads to different outlets would double the amount of current avaliable...
    BUT...

    As has been mentioned, the possibility of one socket/lead being on one phase and the other socket/lead on another phase is possible and not advisable... Here's why...

    As a rough (but reasonable) guess you would have 415V between the lives of each cable... The common connection being the RV or connector/adapter and in effect a dead short on a 3 phase circuit.
    The PFC (Prospective Fault Current) on a 3 phase installation is very likey to be a MINIMUM of 2500 amps and probably higher... All through a 2.5mm Hook-up cable designed to carry a max 27amps...

    Be nice to watch though! :Eeek::Eeek::Eeek:
     
  19. Ash

    Ash Trader - Service & Repairs Life Member

    Joined:
    Sep 22, 2007
    Messages:
    766
    Likes Received:
    189
    Location:
    The Midlands ( Nuneaton )
    Be careful mate , we were in Spain with friends 2 yrs ago and he did that , there was an all mighty bang and he had blew the electrics up on site :Doh::Doh:
     
  20. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    28,934
    Likes Received:
    25,574
    Location:
    .
    One or both of the outlet's MCBs would trip first...
     
Loading...

Share This Page