S
sparky40
Hello All,
I am trying to find out what size conductor should be used between an 'earth rod' and the consumer unit. The only information I can find in the OSG is that it should be 2.5mm if protected and not buried, and 4mm if un-protected ( or protected against corrosion only ) If buried then I know the size increases and can go up to 25mm.
Is a bit of 2.5mm big enough ?? Can somebody please explain why this cable need not be of a larger c.s.a ?
Cheers in advance for any input.
p.s I have a tenner bet on this, I quoted the 2.5 and 4mm to my mate, as the cable in question is not buried. He reckons it should be at least 10mm !
I am trying to find out what size conductor should be used between an 'earth rod' and the consumer unit. The only information I can find in the OSG is that it should be 2.5mm if protected and not buried, and 4mm if un-protected ( or protected against corrosion only ) If buried then I know the size increases and can go up to 25mm.
Is a bit of 2.5mm big enough ?? Can somebody please explain why this cable need not be of a larger c.s.a ?
Cheers in advance for any input.
p.s I have a tenner bet on this, I quoted the 2.5 and 4mm to my mate, as the cable in question is not buried. He reckons it should be at least 10mm !