Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 45 replies
  • Subscribers 32 subscribers
  • Views 3746 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

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.
Parents
  • 0

    Sparkingchip:

    I have worked in houses where the ring circuit has been wired through the floor void with the ring supplying the first floor sockets in the bedrooms and every ground floor socket being wired as a spur from a first floor socket above it.


    That absolutely minimises the cable used, but it means there is not a socket in the house you can connect another spur to and the number of spurs equals the number of points on the ring.


    So to add another socket or spur you have to cut and joint the ring to extend it from upstairs, wherever the new point will be located.


    Andy Betteridge 



    Or go to the nearest downstairs DS, put in a FCU next to it , feed the DS from the FCU and add as many sockets as you like all around the room 

     

Reply
  • 0

    Sparkingchip:

    I have worked in houses where the ring circuit has been wired through the floor void with the ring supplying the first floor sockets in the bedrooms and every ground floor socket being wired as a spur from a first floor socket above it.


    That absolutely minimises the cable used, but it means there is not a socket in the house you can connect another spur to and the number of spurs equals the number of points on the ring.


    So to add another socket or spur you have to cut and joint the ring to extend it from upstairs, wherever the new point will be located.


    Andy Betteridge 



    Or go to the nearest downstairs DS, put in a FCU next to it , feed the DS from the FCU and add as many sockets as you like all around the room 

     

Children
No Data

Community Rules & Guidelines