An Electrician's Day (You Tube video series)

[aptsys]

Also, is it permissible to put a cooker isolator in a cupboard? He was unsure of this in one of his videos.

Yes it's fine.

 

[ban-all-sheds]

Isn't he (and most others) just using white plastic compresson glands with however many T&E cables they can stuff into each one? That's the workmanship I've seen. Compression glands look OK with round cables.

Shoddy workmanship like that is the fault of the the person who did it, not the materials he used.

It is possible to use grey, to match the cables, if you want. It is possible to use flat cable inserts, if you want, aligned so that the cables all come out in the same orientation, just needing to be swept back to lie flat against the wall, if you want.

You're quite right, though, that blind grommets will do the job of keeping the IP rating (but again people will stuff more than one cable in, and will probably end up with a mix of 'innies' and 'outies'). Nobody sits admiring the neat cable dressing of a CU - if it isn't going to be hidden away then you'd have all the cables concealed anyway.