Wiring replacement oven hood

thepeted

Hello,
I need to replace my oven hood and have removed the old one and trying to figure out how the new one will be wired in, and whether I'll need an electrician.
I had to cut the wire from the old one to get it off the wall (after isolating power at the breaker!).  The old wire had been run in to a channel in the wall and then connected to a box on top of a kitchen cabinet (to the right) that is in turn connected to an FCU below on the kitchen wall.  The old wire is two core (blue and brown), no earth.  I've attached some images of the arrangement.

Assuming the replacement hood came without a plug (one I'm looking at says it has no plug) and also a two core, would it be safe to connect it to the old wire coming out of the wall using some kind of connector, that sat behind the hood?  If so, would it be legal and safe to carry this out myself?  As well as the expense of the electrician, I'm concerned if a new channel needs to be dug I'm looking at a repaint as well :-( 

Would really appreciate any advice on what you would do in this situation, thank you.

Jeepers_Creepers

Almost certainly the new hood will not be '2-core', so I hope that answers your question :-)  

Can that 'dodgy' cable be pulled back through the wall to the top of the unit? If so, tie a string to it - you may, possibly, be able to draw through the new cable. Whether that breaks rules on cable positioning in walls - there won't be anything obvious to indicate there's a cable there - I'm not sure.

thepeted

Thank you @Jeepers_Creepers, I think that probably does :-). And the more I think about it the less comfortable I would be reusing that wire.

Sadly, that old wire isn't budging, but I was able to expose the channel enough to perhaps bring out the cable from a new one from behind the chimney and run it on the wall across to the top of the kitchen cabinet behind some trunking, at least as a stop gap.

I opened up the box that is connected to the FCU and that has an earth connection.  It feels like if I hired an electrician they would simply connect the wire from a new oven hood in to this box, unless I am missing something?

Jeepers_Creepers

Yes, almost certainly that's what they'd do.

That JB is fed from a FCU, so it should have all the protection it needs. Unless there's a good reason not to (ie you can't match that beautiful green) then it's probably worth channelling out for a new cable (should be relatively easy - already been done once) and ideally place a thin conduit there to run the new cable in.

Whether that 'conforms' in every respect, I dunno - but I think it should since it's a straight horizontal run and folk would know there is a cable running to the hood, and it wouldn't take any time to ID where.