1.5mm earth singles for 2.5mm 3 phase 16A socket circuit?

[sparky marky]

My question is, is a 1.5mm singles earth conductor adequate for a 3-phase and neutral 16A 'ludent' socket wired in 2.5mm on a 16A fuse?

One 16A socket per circuit

 

[Graham Lister]

I'll stick my neck out and say yes.

 

[Andy™]

as long as it meets requirements, then yes. not much different to 2.5 T&E with 1.5mm earth on a 16A circuit

 

[sparky marky]

ok brilliant cheers, I suppose 2.5 earth is good practice though

 

[ianmacd]

Unless you want to use an adiabatic eq to prove its ok then it should be 2.5mm

 

[Fracticus]

Use 2.5 for compliance with table 54-7 or as above calculate using adiabatic equation - cheers