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I`ve been thinking

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.
Parents
  • I just wonder these days if full 32A capability is actually needed in a domestic setting?

    Looking at the drive for energy efficiency from appliance manufacturers, is there really a need for a ring circuit in today's houses?

    Washing machine water heater? Say 2KW/10A max. Same with spin/tumble dryer and dish washer.

    Lounge/sitting room/bedrooms? Isn't 16A/20A enough?

    Rings suffer from an inordinate amount of abuse by the uninitiated adder-ons who get going even before the ink is dry on a perfectly installed and pristine Ring Final.

    I've seen it where a superficially small number of sockets has been requested to keep the price down, then as soon as you've driven away in your van, they get busy themselves with a trip to B&Q and all of your hard work is in vain.

    Far better to drop in a few radials and let them hack at those - less room for mistakes then.
Reply
  • I just wonder these days if full 32A capability is actually needed in a domestic setting?

    Looking at the drive for energy efficiency from appliance manufacturers, is there really a need for a ring circuit in today's houses?

    Washing machine water heater? Say 2KW/10A max. Same with spin/tumble dryer and dish washer.

    Lounge/sitting room/bedrooms? Isn't 16A/20A enough?

    Rings suffer from an inordinate amount of abuse by the uninitiated adder-ons who get going even before the ink is dry on a perfectly installed and pristine Ring Final.

    I've seen it where a superficially small number of sockets has been requested to keep the price down, then as soon as you've driven away in your van, they get busy themselves with a trip to B&Q and all of your hard work is in vain.

    Far better to drop in a few radials and let them hack at those - less room for mistakes then.
Children
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