Polarity reverser - home made.

Discussion in 'Top Tips & Tricks' started by savantuk, Jul 3, 2009.

  1. savantuk

    savantuk Read Only Funster

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    I'm a newbie, so I cant tell if this tip has been used before here, but I've found it so useful, so others may too.

    Quite often on the continent, I've plugged in to the on site electrics, only to find the polarity warning light on the consume unit turning red:(

    Last year, I decided to make a polarity reverser. I purchased a waterproof cable connector from a chandler in Honfleur, France, together with a rugby ball shaped cover which is 2 parts, which snap together forming a waterproof seal at both sides of the cable joint, and which completely protects the connector.

    The connector (2 pin) is completely symmetrical, allowing it to change the polarity just by turning one end through 180 degrees. I have marked both ends with a -/+ indicator.

    Lining up both sides at the +/+ position gives normal polarity feed, but if the polarity warning light comes on, lining up the +/- sighns automatically reverses the polarity.

    Cheap but effective!

    Doug
     
  2. bigfoot

    bigfoot Funster

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    Just make up a Short lead with the blue plug and sockets and reverse live and neutral.
    The rugby balls hinges wear in no time and they are not completly water proof.
     
  3. sinbad1

    sinbad1 Deleted User

    i made one of these a while ago

    View attachment 2608

    simply made from a male and female connector with + reversed ,caps ends removed with a short pipe to join them up.( no bigger than a single plug

    Not had to use it yet ;but tested and works fine
     
    Last edited by a moderator: Jul 3, 2009
  4. peter marshall

    peter marshall

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    Hi I made up some spare leads by changing the wires around and marking up the reversed ones on both 3 & 2 pin plugs as I have had both combinations it saves a lot of time and trouble if required. Peter:thumb:
     
  5. scotjimland

    scotjimland Funster Life Member

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    me , I don't bother checking nor have a reverse connector, never have and never will ..

    not going into the whys and wherefores , it' been done to death already
     
  6. pappajohn

    pappajohn Funster Life Member

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    Awww!!!! come on Jim......give us a clue.

    this old chestnut hasnt had an outing for a while now:Rofl1::Rofl1::Rofl1::Rofl1:
     
  7. savantuk

    savantuk Read Only Funster

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    Seems to me that this is a put down to a newbies first post:Eek!:

    Did I upset you somehow??

    I thought I'd post a useful tip - I haven't been long here, so I didn't know that the subject had been 'done to death'. Please excuse me. I'll try to be more circumspect in future!
     
  8. scotjimland

    scotjimland Funster Life Member

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    not at all.. no offence meant, it wasn't a put down,

    my comment was about previous discussions on using a reverse polarity adaptor ... and wasn't going to start another debate as it had been done to death already ..

    not about your post or tip..
     
  9. savantuk

    savantuk Read Only Funster

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    Hi, that's ok then:Wink:

    Would you, or somebody else that's party to the 'reason that you don't ever bother', please contact me, PM or email (dougdarterATaol.com). If it isn't strictly necessary to have the correct polarity, then it would ease my mind.
     
  10. savantuk

    savantuk Read Only Funster

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    Hi Bigfoot,

    My 'rugby ball' is a round 4 years old, and has been opened and closed at least 100 times, and there is no sign at all of fatigue, and it has good 'O' ring seals at either end. It's a marine item, and built for heavy use. Came from the chandlers at the Vieux Port in Marseilles, if you ever get down that way. Cost about Eu10.
     
  11. Geo

    Geo Trader - Funster

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    In a Nut shell
    Every thing works either way round and presents no hazard or danger to you or the van:thumb:
    Bring on the Experts:Doh:
    Geo
     
  12. scotjimland

    scotjimland Funster Life Member

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    Hi Doug

    Try a search 'reverse polarity ' .. pulls up plenty of threads..

    in the meantime here is your starter for ten..

    http://www.motorhomefun.co.uk/beginner/5895-electric-hook-up-europe.html

    after wading though all that you may still be just as unsure and maybe more confused.. but it makes good reading.. and if you feel safe checking and correcting then it can't do any harm.. unless your ball fills up with water .. (only kidding) ..


    Jim
     
  13. mondo

    mondo Read Only Funster

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    Correct me if I'm wrong, (and I'm sure someone will) but I thought reverse polarity leads, HAD to be made by a qualified Sparky. When I spoke to a friend of mine,he said when you connect up and you get Reverse Polarity if your'e on a 2 pin connector turn it through 180 degrees and it's problem solved! Is he right..I know this is one of those threads that carries on and on and on AD INFINITUM.
    Can we have an expert put it to bed !!!!
     
  14. Geo

    Geo Trader - Funster

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    Yes your mate is right, if the plug can be reversed its as simple as that, if its a 3 pin of course it cant just simply be reversed thats where the made up short lead comes in simply make a short male and female lead and deliberatly wire the live and nutral in one of the plugs the wrong way, ie live to the nutrel pin and nutrel to the live pin, I repeat in one plug only,it matters not which one.
    then mark the lead so you know what it is, and hey presto your an expert:thumb:
     
  15. bigfoot

    bigfoot Funster

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  16. Road Runner

    Road Runner Read Only Funster

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    Don't be daft I found it useful and plenty have viewed it:thumb:
     
  17. savantuk

    savantuk Read Only Funster

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    Thanks Jim,

    This confirms more or less what I had suspected.

    For several years, I toured Europe without worrying too much about correct polarity. Quite often I would connect to the post, and find that the 'polarity' light would come on on my consumer unit. Whilst annoying, I didn't give it much notice, except that it was so bright, I had to cover it at night!!

    It was only a couple of years ago, when a fellow traveller told me of the untold dangers that it posed, that I decided to make a converter.

    I shall still use it, and be 'polarity aware', but I won't let it bother me any more.
     
  18. sinbad1

    sinbad1 Deleted User

    Think the way to solve this is to reverse the standard wireing from the socket to the consumer unit and ask a qualified electrician to certificate it


    hardhathardhathardhat
     
  19. gazznsam

    gazznsam Read Only Funster

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    cant see a qualified sparky making up a reverse polarity lead, they arent even suppsoed to sell them in shops... or werent a while back.

    as for the 'dangers'.... the only dangers are if theres a fault, and that's why you have an rcd in your van, and another one on the supply post,

    if your in the habbit of taking apliances appart whilst they are plugged into the mains, albeit with the socket switch off, then you should know there's a chance you'll get a 'tingle' if you touch the wrong bit.

    i grew up living in germany, where the 2 pin side earth shuko plug is used, polarity is meaningless over there, AC current is as it's name suggests, alternating, i.e. it changes polarity 50 times a second, so dont matter which way you plug a shuko plug in, the appliance works.

    england is one of the very few countries left that uses such a bulky polarised plug, and one with a fuse in it too, we are also one of the few to still use ring mains,

    everywhere else uses radial circuits, where every few sockets are protected by their own circuit breaker,

    the house we had in germany had a breaker box the size of an A3 piece of paper, 4 rows of breakers, each room had a couple of breakers feeding no more than 3 sockets i believe it was, the lights were also split up into rooms,
    things like the washing machine and drier sockets in the basement had individual breakers, as did the furnace, outside socket etc.

    the house im in now has a 4 way breaker box, 1 circuit for all the lights, 1 for all the sockets, 1 feeding the garage, and a spare that used to feed an electric shower.
    i have more circuits in my van, and i dont have a lighting circuit in there,
     
  20. stagman

    stagman Deleted User

    [QUOTE=gazznsam;england is one of the very few countries left that uses such a bulky polarised plug, and one with a fuse in it too, we are also one of the few to still use ring mains,

    everywhere else uses radial circuits, where every few sockets are protected by their own circuit breaker,

    I think you will find that the electrical standards are far better in Britain than other European countries and have been for years . The other thing I agree if you reverse live and neutral on an AC circuit then the appliance will still work.But that doesn't make it the right thing to do and you will have a far bigger shock which could be leathal if you touch the live as opposed to the neutral.:thumb:
     
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