On Sat, 22 May 2010 16:33:15 +0100 (BST), Dave Liquorice wrote:

On Sat, 22 May 2010 08:26:28 -0700 (PDT), js.b1 wrote:

Turns out that the ring came from above and then split left and
right,
half way between 2 sockets.

Then the vertical drop was not in zone :-)

Quite, horizontal or vertical from a visible accessory and a 150mm
band in the corners and at ceiling level? Which should help with the
accessory vertically below and RSJ, vertical to the rasj then around
either side of it. IIRC 17th ed may well have changed things, even if
my memory of 16th is right. B-)

Unfortunately the accessory is vertically *above* the RSJs, and the ring is
in the floor that they support.

I know where it is though, so I'll either do something if I rewire the
extension or just tell the buyers when we move house.

SteveW