electrical cable tails 25mm/16mm

[dave]

I see some of the "tails sets" advertised for connecting up to elec. meters are 25mm/16mm. Which is which - is the earth conductor the

16mm? (I don't have one of these cable sets (obviously) - just interested to know)

[Andy Wade]

Yes, 25 mm^2 for the line and neutral meter tails and 16 mm^2 for the earthing conductor.

[jgharston]

The rule of thumb for standard circuit installations with no unexpected issues is that the earth conductor is no smaller than the next size down from the current conductors (live+neutral).

JGH