On Monday, 1 October 2018 22:04:17 UTC+1, Scott wrote:
On Mon, 1 Oct 2018 13:46:27 -0700 (PDT), tabbypurr wrote:
On Monday, 1 October 2018 21:31:37 UTC+1, Scott wrote:

Why are there several ways to wire a lighting circuit when there is
only one way to wire a ring main?

There are at least 2 ways to wire sockets

Are there two ways to wire a ring main? Do you mean with or without
spurs, perhaps?

There's ring & radial. There's 20A & 32A. There's spurs, no spurs and all spurs. There's T&E and MICC. There's flush & surface. How many ways do you want to slice it?

There are also obsolete methods very ocasionally found, eg a ring run on 2x 15A fuses, or even more rarely, possibly to the point of never, 4x 15A fuses. Or even more obsoletely, flats each on a single 5A fuse. Seen that one. And no, the electric ovens were not thermostatic.


NT