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Power bank blowing fuses?

Lisa Miles
Hi all


I have a question I hope some of you might know the answer to.


We've recently moved over from a builders electricity supply to a domestic supply on our new build house in France. The electrics have all been checked out and signed off by the Consuel.


I have a two port USB powerbank manufactured by a well known battery manufacturer (?) and I was trying to charge it up while I was there using a native two pin USB charger plug. It basically fried the charger plug but didn't trip the fuse on the main board... 


I then plugged it in to a four socket extension lead (two pin plug to three pin sockets) using a three pin charger plug I have. It blew the extension lead but again didn't trip the fuse on the main board. 


At first I thought it must be a fault with the powerbank but  when I got back to the UK, I plugged it into my usual charger and it charged up as normal... ??


What do you think the problem could be? 

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  • 0

    The UK extension lead has a french plug on the end so there is no fuse to blow in that



    If it's a UK 4-way trailing socket (like this https://media.screwfix.com/is/image//ae235?src=ae235/76584_P&$prodImageMedium$) I'd be surprised if it didn't have a 13A fuse somewhere in it - they always seem to have them even though it seems rather pointless when fed from a 13A plug (I always supposed it was to cover being fed from an old 15A round pin plug). If it is that that's blown to stop the extension lead working, and the fault current was of the small to moderate end of the scale (fault after some current limiting components so it looks more like a severe overload to the supply rather than a fault) it might discriminate with the upstream MCB - especially if it's 20A rather than 16A (which I gather the French regs now permit).


      - Andy.
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  • 0

    The UK extension lead has a french plug on the end so there is no fuse to blow in that



    If it's a UK 4-way trailing socket (like this https://media.screwfix.com/is/image//ae235?src=ae235/76584_P&$prodImageMedium$) I'd be surprised if it didn't have a 13A fuse somewhere in it - they always seem to have them even though it seems rather pointless when fed from a 13A plug (I always supposed it was to cover being fed from an old 15A round pin plug). If it is that that's blown to stop the extension lead working, and the fault current was of the small to moderate end of the scale (fault after some current limiting components so it looks more like a severe overload to the supply rather than a fault) it might discriminate with the upstream MCB - especially if it's 20A rather than 16A (which I gather the French regs now permit).


      - Andy.
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