Electronic meters’ false readings up to six times higher than actual consumption

Re:Electronic meters’ false readings up to six times higher ... by DanBC on Sunday March 05, 2017 @08:11AM (#13795861)

I thought, but I could be wrong, that UK cookers use a radial spur with a dedicated breaker, and that sometimes those breakers also include a standard regular wall socket, but this socket (and the cooker) are still on their own radial spur.

The cooker should never be connected to a normal kitchen ring main.

[ Parent | on HN ]

Re:Electronic meters’ false readings up to six times higher ... by DanBC on Sunday March 05, 2017 @03:19PM (#13798320)

http://www.electricalsafetyfirst.org.uk/electrical-professio...

> Q1.18 Appendix 15 of BS 7671: 2008 gives advice on ring final circuits and sharing/spreading the load around the circuit. Item (iii) suggests that cookers, ovens and hobs over 2 kW should be on their own dedicated circuit. Why can’t ovens of less than 3 kW be connected to a ring final circuit via a suitable connection point such as a socket-outlet or fused connection unit?

> Appendix 15 is intended to give guidance only. Such connection is not prohibited, provided that no part of the ring final circuit will be overloaded as a result.

> Regulation number(s)

> 433.1.5

So, not forbidden, but if you have new wiring the electrician is going to give the cooker its own circuit.

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Re:Electronic meters’ false readings up to six times higher ... by rleigh on Sunday March 05, 2017 @06:43PM (#13799615)

Just checked in my new-ish flat where I have an electric oven only (gas hob). It's a 13A square pin standard wall socket, but does have a dedicated breaker, so it is indeed not on the ring main for the other wall sockets. It has a 32A MCB in the consumer unit (same as on the two main rings). Not sure if it's ring or radial without removing the socket.

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