Meter options for a 16A commando socket?

[HappyHippyDad]

My customer has a 16A commando socket in their garage. The garage is rented out and used as a kiln room. It does have a separate CU in it.

He has asked if the power usage of the commando socket can be monitored. Not just a live reading, but a cumulative reading (as a normal meter would do).

I have found this SU2 16A 1 Way Metered Static Caravan Hook Up Point - https://www.cef.co.uk/catalogue/products/1902022-su2-16a-1-way-metered-static-caravan-hook-up-point?gclid=CjwKCAiAxp-ABhALEiwAXm6IyYzo4dfhVXIZRR41k615H5ABmKgjM11H6oO5zkz93j79eeK6AdKXKRoCo9AQAvD_BwE&gclsrc=aw.ds

but I cant quite see where the meter part is, or if it keeps on ongoing record of the power useage.

I will suggest to the customer a normal meter put before the whole CU, but he may well be asking for just the commando socket as certain outside lights may be attached to it and therefore shouldn't be paid for by the person renting.

Does anyone know of a product that would work here?

 

[brianmoooore]

Probably the regs., a few versions back.

 

[Flanders]

Probably the regs., a few versions back.

So is it still permitted today . Or is it in the manufacturing instructions ? I always thought the max permitted load of a 16amp socket was 16 amps

 

[HappyHippyDad]

Just checking are you protecting a 16 amp socket with a 20 amp mcb . I would use a 20 amp rotary isolator instead of the socket. Other wise you would you would need a 16 amp mcb and rcd protection for the socket outlet

Quite right! I installed it ages ago, it would be a 16A MCB, don't know why I said 20A

 

[brianmoooore]

15th edition says "overcurrent protective device not exceeding 20A" for BS4343 16A sockets on a final radial circuit.
Can't find anything in the 16th or 17th saying one way or the other for BS4343/EN6039

 

[UKMeterman]

I think the assumption is the 20A breaker will provide short circuit protection and the load by design will not overload beyond 16A. As regard meters try sometthing like P01330740 | Chauvin Arnoux Energy Memo 1 Phase LCD Digital Power Meter with Pulse Output, Type | RS Components - https://uk.rs-online.com/web/p/energy-meters/1744211/ in a box from RS or farnell.

 

[brianmoooore]

Yes, a load connected by a 16A plug should not exceed 16A. There's no reason why the final radial circuit should only have one 16A socket on it, and in use at the same time.