Plastic Junction Box earthing?

[JiSingh12]

Hi guys,

Quick question, I've had some people say to earth a plastic junction box with piranhas etc. whereas some people saying there's no need, since it's plastic?

I have the 5 terminal adaptable junction box from Screwfix (image attached)

From the inside of the house I have twin & earth coming into the box, connecting to 2 runs H07RN pond flex which is then going to be run to the outdoor lights in plastic conduit and with glands.

If it's confusing I can make a diagram?

Thanks

 

[DPG]

You don't earth the plastic box, and you don't use Piranha nuts, since you aren't using armoured cable. However, the CPC (ie. Earth) needs maintaining throughout the wiring system.

 

[7029 dave]

I like that AB with the factory screws never seen them. Bloody marvellous ?

 

[Electrics]

Don't earth the box, but make sure there is continuity on the CPC by linking the incoming and outgoing CPC's together.

 

[Lucien Nunes]

Made by Speslberg. Many types are available with fitted terminals but usually single-row as they are targeted at mainland Europe where single-row are more widely used.