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I`ve been thinking

ebee
OK the title might startle some who know me.

Ring Final rules.

What is the intention behind the rule "no more spurs than points on the ring".

I think most of us who have run rings would almost exclusively put every point on a ring and no spurs at all.

Spurs are then usually just additions.

One spur max per point.

One spur allowed at origin.

If I saw a ring with say 12 points on ring and one ring per point and say 1 point at origin that would be 12 on ring and 13 spurs that would not worry me.

In fact if I saw say 5 points at origin it would not worry me either.

If I saw 12 on ring each with one spur then 5 spurs at origin then 11 spurs on joints between points woul I worry?

No I would not although this "golden rule" would have been well and truly broken.

I think the rule intention was purely good housekeeping to keep us all on the straight and narrow.

In fact some on here have mentionded a ring in a loft with junction boxes dropped dow to spurs. Therefore all spurs and not on ring.

Note I did not pick the number of 12 points on ring for any reason, I could have picked 5 or 50 or 5000.
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    ebee:

    I altered a kitchen wiring of a rewire I did a few years previously, single sockets  for washer and dishwasher  with dp switches above worktop, all labelled.  one heavy load each spur not washer and DW in one twin. This gives easy switching of W & DW and negates the simplyawfull practice of sockets in cupboards. I`d never encorouge two such loads in one twin.


    Same reasoning I always use a 45A DP switch for cooker, not one with onboard socket, that is a throwback to the days of not many sockets per dwelling and OK for kettle now and again but how often do washers/dryers get a home there? Aghh.






    Although a socket outlet mounted on a cooker panel may encourage misuse and the running of flexes over hot hobs, it is very handy for the customer to make us tea if we have the ring turned off.


    Z.

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  • 0




    ebee:

    I altered a kitchen wiring of a rewire I did a few years previously, single sockets  for washer and dishwasher  with dp switches above worktop, all labelled.  one heavy load each spur not washer and DW in one twin. This gives easy switching of W & DW and negates the simplyawfull practice of sockets in cupboards. I`d never encorouge two such loads in one twin.


    Same reasoning I always use a 45A DP switch for cooker, not one with onboard socket, that is a throwback to the days of not many sockets per dwelling and OK for kettle now and again but how often do washers/dryers get a home there? Aghh.






    Although a socket outlet mounted on a cooker panel may encourage misuse and the running of flexes over hot hobs, it is very handy for the customer to make us tea if we have the ring turned off.


    Z.

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