Discuss Large Volt Drop in ring circuit in the UK Electrical Forum area at ElectriciansForums.net

Andy

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Hi Folks
This is my first post, but I've been reading many posts over the last few months and have found this forum very informative and some times very humorous, Thank you all.

I have recently come across a problem whilst doing some PAT testing for a customer that has left me confused. Although this is nothing to do with PAT testing it was my PAT testing meter that highlighted the problem when I plugged it into a socket.

The property is a 4 year old Timber barn and the loft has a small ring circuit with a spur off it feeding a socket below for a small telly.

My problem is that all of the sockets are only giving voltage readings of 60v but the reading for the circuit at the CU is the standard 240v
The only thing that I can think of is that when building the property someone has banged a nail through a cable somewhere.
I have been round all of the sockets and checked connections etc and found nothing obviously wrong.
When I mentioned it to the customer he said don't worry its probably been like it for ever and the sockets only supply low voltage stuff anyway.

Well I am concerned that its wrong and there is possibly a nightmare waiting to happen.
Im thinking of contacting the customer and trying to get him to let me rectify the problem
Is there anything else it could be?

I await your reply's with baited breath :)
 
need to know a lot more. are appliances plugged into these sockets working OK? what are the sockets used for? and more.
 
Appliances are plugged in and working. All low voltage stuff.
All voltages tested with a multimeter. Fluke 1653b
60 volts at each socket (thought i'd said that)
240 volts at CU for Circuit (thought i'd said that)
 
Could be looking at some Power supply 12/24VDC ,60V AC above earth ,and a very confused pat tester box.
(Customer says worry not )... but you know something is off !

Switch to DC , on anything apparently 0V !

Check appliances not 120V and you are seing some weird 60-0-60 Configuration .
 
Last edited:
Appliances are plugged in and working. All low voltage stuff.
All voltages tested with a multimeter. Fluke 1653b
60 volts at each socket (thought i'd said that)
240 volts at CU for Circuit (thought i'd said that)
I think SC asked what the 60Volts referred to L-N, N-E, L-E When you say all low voltage stuff, what exactly do you mean? the system you are working on 24o Volts IS LOW VOLTAGE.
 
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