Ring Main Extension

bluefont · Posted: Wed Nov 24, 2004 5:49 pm Post Subject: Ring Main Extension

When extending a domestic ring main why is wrong to add a ring to a ring? In other words leave the existing ring intact and just add the extra sockets to a ring taken directly from two adjacent sockets. After all the current flows both ways

breezer · Posted: Wed Nov 24, 2004 6:03 pm Post Subject:

its harder to do that, and you are making a ring into a spur

why not add the new sockets into the ring, easier and safer

__________________
Do you like music Mr Finch?
Forum = Opinions

ban-all-sheds · Posted: Wed Nov 24, 2004 6:51 pm Post Subject:

What you'd end up with then would be a bridged ring, which you're not supposed to have.

But if you can get at 2 adjacent existing sockets to connect your new cables, you can disconnect the existing cable joining them, and thus extend the ring....

__________________
I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

plugwash · Posted: Wed Nov 24, 2004 7:18 pm Post Subject:

there are two main reasons

the first is it can increase the chances of hot spots in the ring

the second is it makes a cuircuit arrangement which is going to be a right pain to test (i think this is the main reason)

bluefont · Posted: Wed Nov 24, 2004 9:47 pm Post Subject:

Thanks for the quick responses. I shall ensure that I construct the new ring extension without the bridge. I just wondered why it shouldn't be done the other way.

onion_soup · Posted: Wed Nov 24, 2004 10:46 pm Post Subject:

ban-all-sheds wrote:

What you'd end up with then would be a bridged ring, which you're not supposed to have.

But if you can get at 2 adjacent existing sockets to connect your new cables, you can disconnect the existing cable joining them, and thus extend the ring....

my 2 adjacent existing sockets are not part of ring , still connect to them ?

ban-all-sheds · Posted: Wed Nov 24, 2004 11:01 pm Post Subject:

Possibly - all the usual rules apply to each one, individually. But don't join them together, directly or via new sockets.

__________________
I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

onion_soup · Posted: Wed Nov 24, 2004 11:11 pm Post Subject:

ban-all-sheds wrote:

Possibly - all the usual rules apply to each one, individually. But don't join them together, directly or via new sockets.

ok ban leaving every thing as is for now