Number of points served

RMS · 11 May 2016

I agree with the majority. A double socket is one point of untilisation. It's one connection/joint to the circuit whereby power can be drawn.

In my mind recording this info seems in most cases pointless. However, if previous test results/information is available it does provide useful info to the inspector on how many points he/she should be looking for and can give an indication if additions have been made to a circuit. Providing the number of points served prviously is accurate and the past inspector's interpretation is consistent with the present inspectors.

EFLImpudence · 11 May 2016

RMS said:
Providing the number of points served prviously is accurate and the past inspector's interpretation is consistent with the present inspectors.

As with some other things, that is unlikely to be known.

EFLImpudence · 11 May 2016

PBC_1966 said:
I never understood the logic behind limiting a 30A radial to six sockets while a 30A ring could serve any number of sockets up to 1000 sq. ft.

I don't think logic had/has anything to do with it.

What possible relevance has the area?

Adam_151 · 11 May 2016

EFLImpudence said:
What possible relevance has the area?

It is (actually was) related to the number of portable electric heaters that might be in use in that area and was based on the size of a typical domestic dwelling, with the front room having a coal fire, one might wish to use 2no three bar electric fires elsewhere, leaving a bit of headroom for anything else. Therefore a single ring circuit was suitable for most homes

PBC_1966 · 11 May 2016

That's fine, but why the six-socket limitation for a 30A radial which is capable of supplying the same amount of power?

Taylortwocities · 13 May 2016

HAve I missed something. Where is the reference to a six-socket limitation for a 30A radial?

EDIT: Oh sorry, you were talking about rules from decades ago. What's the point of even mentioning it. The current regs (the dreaded and much doiscussed Appendix 5 informative) now only talks about historical floor areas served.

The diagram for a 20A radial shows a total of 11 double and one single BS1363 socket outlets. So there's no point in further discussion about how things were in the swinging sixties.

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Number of points served

Number of points served - double socket

1

2

RMS

EFLImpudence

EFLImpudence

Adam_151

PBC_1966

Taylortwocities

DIYnot Local

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