"Stefek Zaba" wrote in message
...
Peter Ramm wrote:

Highly possible and not at all unusual or in any way wrong. Lighting
circuits are radials,


Is this always the case - I am about to replace two fuse boxes with a
CU.
There are two cables fed from the same 5A fuse - I assumed they were
a ring of all the lights.

Yes, it's always the case - as close to 'always' as any generalisation can
be. Ring circuits are almost unknown outside the UK, and here we use them
only for our 13A-socket power circuits.

Your two cables feeding from the same way in the CU are just two arms of
the usual radial circuit - it happens to have been most convenient for
whoever put the circuit in (whether as one planned job or as in a series
of add-ons!) to branch from the CU - as good a place to branch as any
other position on the circuit.

And also useful if you decide to split the circuit so
you can have more load (bulbs) on each one.
(having checked that it isn't a ring of course)

Al