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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
  • Agreed Zoom but what is the benefit. Other than to not produce a very untidy circuit. A ring final with no points on ring just say 20 junction boxes on ring. Each junction serves one point at the end of each spur. 5 points spurred directly at the OPD "fuseway".


    Or


    25 points on the ring, not a spur in sight.


    The only benefit with the second circuit is no horrible junction boxes but if these junction boxes were changed to points then no problem.

    So what is the (practical) difference? Just good housekeeping?


    The little Devil in me is making me consider installing such a ring as in the first example and sitting back seeing what comments are made during an inspection and tes.

    That would be interesting! ?

Reply
  • Agreed Zoom but what is the benefit. Other than to not produce a very untidy circuit. A ring final with no points on ring just say 20 junction boxes on ring. Each junction serves one point at the end of each spur. 5 points spurred directly at the OPD "fuseway".


    Or


    25 points on the ring, not a spur in sight.


    The only benefit with the second circuit is no horrible junction boxes but if these junction boxes were changed to points then no problem.

    So what is the (practical) difference? Just good housekeeping?


    The little Devil in me is making me consider installing such a ring as in the first example and sitting back seeing what comments are made during an inspection and tes.

    That would be interesting! ?

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