Welcome to Over50sForum! The site for people over 50 to chat, make friends, discuss, share, and generally be part of something that's fun and friendly :)
JBR, you've been great in giving me advice and I've really appreciated it so I'm going to be kind and ignore your last remark because it's a pretty sad thing to say!
To be fair, the brown/blue/green and yellow colours have been used in flexes for a long time and it was only manufacturers' intransigence that led to a delay in adopting the same colour scheme in PVC cables.
One thing to note in the new colour scheme is that black is classed as a live conductor so if used at switches should have some brown tape or sleeving fitted. Grey is neutral and should have blue indicator sleeving/tape fitted unless used as a live conductor at 2-way switches in which case brown sleeving/tape should be applied.
Confused? You will be.
Many years ago, I was asked by a girlfriend if I could change a light fitting in her living room. I discovered that every wire in the flat including the loop in was black. Obviously had to get a sparks in.
Lindyloo, or anyone else interested, if you'd like to get some information or advice straight from the horse's mouth, I can recommend a specialist forum for electricians.
You can post pictures as well, of course.
I'm not allowed to post the web address on here, but if you let me know I can PM you the web site.
If ever I need electrical advice I always try the electrician forums - where they delight in not telling you anything.