Lighting Circuit Nuetrals in Domestic Light Switches

[Midwest]

BS 7671, 526.3. Makes a start.

 

[hightower]

Must have been here in my 2365 textbook.

 

[Andy78]

On the subject of accessibility I'm sure I've seen somewhere that a hatch in the floorboards is acceptable for screw type junction boxes. Will try and remember where I saw that. ...

It's debatable really whether or not a hatch is considered accessible or not. I personally only fit MF connections under floors. I may make an exception for a marked board in a central heating cupboard or understairs cupboard that has exposed boards as it is easily spotted and accessed.
A hatch under a floor is only accessible after all the furniture has been moved and the carpet taken up. Not my idea of accessible. And it's only accessible in that manner as long as no laminate/tiles/lino is put down over it.

 

[richy3333]

Hi Again Midwest,

I have installed some down lighting fited with cold running LED's in my kitchen and utility room and downstairs toilet using the existing 3 plate lighting system, I just used a junction box to create the lighting point in each room then looped the switched live and perminant neutral and earth (cpc) from light to light, it all went in very nicely.............. Please dont tell me there is now a Reg that says I should have switched the neutral LOL

Barrie

hope that JB was a MF one

 

[Jay Sparks]

If the OP has used pork pie JB's to connect each down light, then there's no access problem because if they went into the hole for the down light, then they can be easily accessed by the same hole?? I have done this on many occasions. I would never put them under floor boards though. And Wago's are a good idea but they have only been out for 5 maybe 10 years!! How can any one guarantee they are MF??? They haven't been tested long enough.

Jay

 

[DPG]

If the OP has used pork pie JB's to connect each down light, then there's no access problem because if they went into the hole for the down light, then they can be easily accessed by the same hole?? I have done this on many occasions. I would never put them under floor boards though. And Wago's are a good idea but they have only been out for 5 maybe 10 years!! How can any one guarantee they are MF??? They haven't been tested long enough.

Jay

If they have no strain relief for the cables then they need to be fixed though. Daz

 

[Jay Sparks]

If they have no strain relief for the cables then they need to be fixed though. Daz

If the JB is resting on the under side of the ceiling, about 6 inch away from the down light, wheres the strain?? So you pull your down light down and the JB is there. Easy access, no strain??!!

 

[DPG]

If the JB is resting on the under side of the ceiling, about 6 inch away from the down light, wheres the strain?? So you pull your down light down and the JB is there. Easy access, no strain??!!

The strain relief in junction boxes is there so that when the junction box and cables are moved around, the terminations are not put under stress, especially where the relatively non-flexible t&e is used. Daz

 

[Jay Sparks]

The strain relief in junction boxes is there so that when the junction box and cables are moved around, the terminations are not put under stress, especially where the relatively non-flexible t&e is used. Daz

I know what you are trying to say but i just cant see how a downlight is gonna move around when its in a ceiling. Jay

 

[DPG]

I know what you are trying to say but i just cant see how a downlight is gonna move around when its in a ceiling. Jay

It's more the juggling around and moving things around when the boxes are pushed up into the ceiling though. Daz