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  • #1811500
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    fittersmate
    Participant
    Joined: 08 Jun 2009
    Location: Brittany France dept 56
    Total posts: 1624

    This advice has been given on a public forum.

    “A simple and very safe way to connect your gen set to your house in times of outage is to have a lead with a plug on each end, ensure you set your main input breaker/isolation to off then simply plug one end of your double plugged lead into your generator and the other into a standard wall outlet socket this will of course backwards power all linked circuits,  so long as your main breaker isolation switch is off then there is no risk, however be sure to disconnect your generator prior to re-setting the breaker.”

    Ok it’ll work in an emergency if the right sequence of switching is done, we’ve probably all done stuff like this for a temporary lash-up, but not for public consumption IMHO.


    #1811507
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    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    Totally agree, when I had a generator I kept my lead under lock and key and was terrified that someone might find it and plug it in. When I sold the generator I showed the guy how I had used it but cut the plugs off the lead in front of him, I did not even like holding it in my hand any more than I would a loaded gun and I cringe when I see people unknowingly doing really dangerous things.

    A pal from my tech college days was an aircraft fitter, he lodged with some hosties, when he went to cut the grass with the electric lawn mower he was horrified to find an extension lead had been made for it with male 2 pin mower plugs at each end, one of their ex boyfriends had made it and they had used it many times, this was way before the advent of RCD devices.

    what forum was it on?


    #1811508
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    Chanceux
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    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    Reading it again the warning at the end is the most shocking thing of all, “disconnect the generator prior to resetting the breaker”, that is absolutely shocking if taken literally and that is exactly what someone with no electrical knowledge would do.


    #1811523
    DominicBest
    DominicBest
    Participant
    Joined: 14 Aug 2015
    Location: Poitou Charentes
    Total posts: 2500

    Thanks for posting that. I had wondered how people wired up backup generators and presumed it involved something more secure than plugging a connecting lead into a normal socket. I live and learn.


    #1811524
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    fittersmate
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    Joined: 08 Jun 2009
    Location: Brittany France dept 56
    Total posts: 1624

    It’s on AggroInfo Bretagne – sadly.

    Old joke – “What’s black and hangs from two wires?”

    Answer = “A diy electrician who listened to stupid advice on the AngloInfo forum”

    Dominic – if you want to power a house from a genny you must use what I call an “either – or” switch. Either mains OR genny but not possible to connect both at the same time.


    • This reply was modified 16 Nov 2017 13:48 by  fittersmate.
    #1811531
    DominicBest
    DominicBest
    Participant
    Joined: 14 Aug 2015
    Location: Poitou Charentes
    Total posts: 2500

    It’s on AggroInfo Bretagne – sadly.

    Old joke – “What’s black and hangs from two wires?”

    Answer = “A diy electrician who listened to stupid advice on the AngloInfo forum”

    Dominic – if you want to power a house from a genny you must use what I call an “either – or” switch. Either mains OR genny but not possible to connect both at the same time.

    <hr>

    I’d always presumed that there must be some basic interface to allow a changeover but I suppose people will always look for DIY shortcuts.
    The only time I’ve ever used generators has been on boats or with motorcaravans where a 12 volt option has been used to charge the leisure batteries or the inbuilt 220/240 volt sockets have been enough.


    #1811534
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    headers
    Participant
    Joined: 17 Mar 2009
    Location: 47
    Total posts: 658

    We have had an either/or switch installed for our generator by a local electrician. He did not look at us as if we had landed from mars either.


    #1811537
    robertarthur
    robertarthur
    Participant
    Joined: 29 Nov 2010
    Location: Nièvre (58)
    Total posts: 2157

    Let’s ask the ERDF/ENEDIS guys about connecting and disconnecting generators to the grid…..Inside your house there are for quite some time  solutions as this switch, made by the same company as advertised on this 60 kW generator. Simple, rock-solid and safe. You can also safe 90 euros and play the electrical version of Russian roulette. Perhaps time for a three-strikes out rule on some forums for some participants for this kind of potential lethal advice as observed by Fittersmate.


    RA

    #1811579
    badger
    badger
    Participant
    Joined: 04 Dec 2008
    Location: Near Vire (14)
    Total posts: 1408

    +1 to all the warnings.

    With the rise of households not only producing their own power but also the use of battery storage the possibility of an incompetant installation backfeeding the grid & potentially endangering workers repairing line faults has increased. As for the use of double male ended cables….. :negative:

    On an outdoor event I once inspected a very nicely set up catering van only to find that the surafce mounted power inlet was actually a socket. Further enquiry revealed that the owner used a plug-to-plug lead to power it up. When asked why this was the case I was told that “…the electrician who wired the van couldn’t get a surface male inlet…..”. I obviously agreed that it was a prefectly reasonable excuse :wacko:


    Jonathan Badger - St Germain de Tallevende 14500 http://www.badgerlx.fr

    #1811582
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    fittersmate
    Participant
    Joined: 08 Jun 2009
    Location: Brittany France dept 56
    Total posts: 1624

    The thing that got my goat was the “lead with a mains plug on each end”

    The **** who  offered this advice as the way to go said:-

    “btw male to male plugs on same lead is acceptable practice in many a industry mine included”

    ??????

     


    #1811585
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    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    I had an Esterel caravan, circa 1984 so was 30 years old when I had it and had a lethal fault on it all that time.

    Medd een Frohnce for the French market mine was sold new in the UK where I bought it from E-bay as a non runner (wheel fell off) the electrics had been converted to UK ” pin plugs.

    It was factory made with a French male socket with the pins sticking out, quite normal a it means that the connection lead has a male plug at one end and a female one at the other, no different to a proper caravan plug which it had also been fitted with during the conversion.

    Trouble is the eedjits (English) that fitted the caravan socket wired it in parallel with the existing French one, I bought the van with a pair of connection leads one for old fashioned French sites and another for all the newer hook ups.

    You have probably worked out what the danger was, it had been used like that every summer on site hook ups for 30 years but thankfully no curious child had touched the open unshuttered French socket.


    #1811586
    robertarthur
    robertarthur
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    Joined: 29 Nov 2010
    Location: Nièvre (58)
    Total posts: 2157

    Male to male plugs (ethernet cable): acceptable practice for low-voltage/data/signal transport (Fender California), but not in every industry…..


    RA

    #1811587
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    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    Thats OK then because basse tension is between 50 and 1000vac :lol:


    #1811589
    robertarthur
    robertarthur
    Participant
    Joined: 29 Nov 2010
    Location: Nièvre (58)
    Total posts: 2157

    Explaining the last miles to the consumers of the ERDF/ENEDIS high voltage distribution system  – 20 kV transformers to 400 V three-phase – a foreign  “power expert” said: not interested in the 20 kV low-voltage part of the French grid…..


    RA

    #1811627
    loopski
    loopski
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    Joined: 23 Jan 2013
    Location: deux sèvres
    Total posts: 9778

    I do it the safe way with a Linky.


    I would lie on top of the stairs and smell the cigar smoke of Castro.

French Electrical & Other Building Issues
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