Main Earthing Conductor

[dave992]

Hi,

Just want clarity on earthing conductor sizing. I know the table but wanted to know what people recommend about a earthing conductor within a PVC/PVC cable, is this earth big enough for the new board or run a separate earth at least half the Line conductor ( rule of thumb )

Thanks

 

[telectrix]

do the adiabatic.

 

[dave992]

knew that would be the first response

 

[Pete999]

Well Dave it's the right one

 

[PEG]

...Is that like the Macarana?

 

[ipf]

I don't like the adriatic....much prefer the mediterranean

 

[Deleted member 26818]

You need to be more Pacific.

 

[Pete999]

Sorry but I.m Mediterranean at the moment

 

[Octopus]

May be try and update your location to the correct spelling too. lol

 

[telectrix]

Sorry but I.m Mediterranean at the moment

in actual fact, i'm sitting in hotel, 200 yards from that mediterranean sea.

 

[Pete999]

in actual fact, i'm sitting in hotel, 200 yards from that mediterranean sea.

Nice, whereabouts?

 

[tony mc]

Hi,

Just want clarity on earthing conductor sizing. I know the table but wanted to know what people recommend about a earthing conductor within a PVC/PVC cable, is this earth big enough for the new board or run a separate earth at least half the Line conductor ( rule of thumb )

Thanks

I take it that you mean the tails to the CU. More info is required earthing arrangement ! What do you mean by rule of thumb.

 

[camerabloke]

On a chair probably

 

[dave992]

I take it that you mean the tails to the CU. More info is required earthing arrangement ! What do you mean by rule of thumb.

Hi thanks for the response. I mean when someone sub feeds a board in PVC/PVC cable is the earth big enough. The rule of thumb is the earth must be at least half the Line conductor so PVC/PVC cables wouldn't meet it.

Thanks

 

[Andy78]

See post #2 Dave

 

[telectrix]

Nice, whereabouts?

not nice, that's in frog land, marmaris in turkey. back stupid o'clock sunday a.m.

 

[tony mc]

Have a look at this.


Example of use of Adiabatic Equation.

The rule of thumb that I use is re the 80% of the Max EFLI values in BS 7671