Confused

[Pete999]

I'm going to ask what might sound dumb coming from someone of my age and experience, I don't do much now and have done very little in the way of domestic installations, having spent much of my time on commercial or industrial work, thats not to say I don't know how to install domestic electrical installations. The confusion lies with junction boxes under the floors of houses during a rewire, many moons ago on a social housing project we wired everything lighting wise, back to a central point on the first floor, and connecting the lighting points and switches in a large junction box, likewise if we needed to add a 13a socket we would sometime break into the RFC with a 30a JB fitted to a noggin under the floor. My question is, is this still allowed? I mean fitting a JB under the flooring and forming a trap, where possible in the floor boards.

 

[imago]

Junction boxes are allowed if they're either accessible or maintenance free. To be honest though they're to be avoided where possible to make life easier for anyone following.

 

[fredrico]

I use maintenance free joint boxes under floor boards if necessary.

 

[Pete999]

by MF I take it you mean Wagos, not screwed connectors?

 

[imago]

Anything that is marked "MF" to satisfy the regs. If it's not marked it doesn't count even though it may be maintenance free.

 

[Octopus]

google J803 & j804

 

[Richard3009]

Anyone using Sureway prewired JB's for complete house wires?

 

[davesparks]

You what now? A pre wired JB, is that some kind of idiot proof box with a labelled terminal for each conductor. Can't see how it would work unless they are made to order for each installation as each installation will be different.

I can understand prefab wiring for estates of identical houses, but this just sounds daft.

 

[richy3333]

JB's on a rewire or new build. That's as rough as a badgers...

 

[Richard3009]

That's the long and short of it, line in, 8 outputs for lights, one switchwire connection and variants there of.