Cable size

[uksparks]

you should be able to see if it is PME without calling them.

I wont help even if it's not anyway.

 

[uksparks]

Not the same. No.

Thats only on the basis you can get s guarantee from the DNO it will never change.

 

[spark 68]

Even if it is PME you may well find there are earth rods already fitted, a lot of newer PME industrial units have earth rods fitted, a look around the perimeter of the building often you will see the inspection pits

 

[Guest125]

i like the idea but there just isn't the option to do this unfortunately due to it being a car park immediately outside the building.

I would say tough. To much risk.

 

[uksparks]

I must say I didn't notice any having walked all round it a couple of times.

 

[Guest125]

I seem to think this is going to be more problematic than planned for.

i think other than connecting the rod to the met there's probably not a lot of choice.

Not to the MET. The rod would earth the VCP only.

 

[davesparks]

I seem to think this is going to be more problematic than planned for.

Where's the problem?

-Install the charging point.
-Install this little length of SWA, connect it to the charging point.
-Install earth rods, utilise the root of this charging point and the rebar of the concrete pad as part of this, test it and add more rods as required then connect it to the MET.
-Test and fill in the paperwork.
-Send your invoice and get your money.

 

[uksparks]

Not to the MET. The rod would earth the VCP only.

Point two suggests connecting it to the MET

 

[davesparks]

Not to the MET. The rod would earth the VCP only.

Why not? It'll be much better for the installation as a whole to have a decent earth nest connected to the MET than it will to have what is effectively a big external socket connected to its own earthing reference in such close proximity to the metal building bonded to the PME earth.

 

[uksparks]

I'm so I'll just run 16mm swa to the charge point, connect it to the met, and also connect an earth rod in for good measure.

Ok so we have a plan of action, it says in point two, a rod of very low resistance. Can anyone telld what if says in 722 of the regs as have not got a BYB yet.