Power point in external glasshouse

[cliffed]

Client wants 2g socket in greenhouse, obviously IP rated,will be supplied from Rcd, the greenhouse consists of metal frame work on the ground.
Does this require MPBC

 

[Julie.]

Client wants 2g socket in greenhouse, obviously IP rated,will be supplied from Rcd, the greenhouse consists of metal frame work on the ground.
Does this require MPBC

I would say so because the metal frame does represent an extraneous conductive part. (411.3.1.2 item v)

At least now the bonding doesn't have to be 10mm^2

 

[cliffed]

I would say so because the metal frame does represent an extraneous conductive part.

At least now the bonding doesn't have to be 10mm^2

With that in mind that Power point will need its own earthing system ie:TT

 

[Julie.]

With that in mind that Power point will need its own earthing system ie:TT

Why?

Just bond the metal structure.

 

[cliffed]

Why?

Just bond the metal structure.

What with & where from, its either MPBC or supplementary

 

[Julie.]

What with & where from, its either MPBC or supplementary

Neither, the equivalent of MPBC as detailed in 544.1.1

So 6mm^2

 

[cliffed]

Neither, the equivalent of MPBC as detailed in 544.1.1

So 6mm^2

Which is 10mm from a Tncs supply.

 

[Julie.]

Which is 10mm from a Tncs supply.

Why, what size cable are you taking to the glass house???

If you take 6mm^2 then that would meet the minimum x section.

Use the CPC of 6mm^2 as bonding for the seperate building.

 

[cliffed]

Deemed as a Special location this Power Point now becomes an expensive item.
To comply it will need a TT earthing system for the greenhouse to accommodate MPBC

 

[Julie.]

Deemed as a Special location this Power Point now becomes an expensive item.
To comply it will need a TT earthing system for the greenhouse to accommodate MPBC

Why?