Is 10mm O.K .... or do I need to go get some 16mm?
CU to earth spike for TT system
- Thread starter fastJedi
- Start date
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What does the OSG say?
Page 163 osg table 10c
For TT supplies with efli not less than 1 ohm.
Buried & unprotected 25mm
Buried & protected against corrosion 16mm
Buried & protected against corrosion & mechanical damage 2.5mm
Not buried 4mm
Not buried protected against corrosion 4mm
Not buried protected against corrosion & mechanical damage 2.5mm
For TT supplies with efli not less than 1 ohm.
Buried & unprotected 25mm
Buried & protected against corrosion 16mm
Buried & protected against corrosion & mechanical damage 2.5mm
Not buried 4mm
Not buried protected against corrosion 4mm
Not buried protected against corrosion & mechanical damage 2.5mm
Will run down outside wall of bungalow protected by 20mm black plastic conduit to earth spike at base of wall ... so sounds like 10mm will be fine! Thank You for your assistance.
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I was asking fastjedi.
Oh well, never mind....
Oh well, never mind....
Why don't you have a copy of the OSG?fastJedi said:
If you don't want to buy one, look in Yellow Pages under "E" for electricians...
Do electricians make good earth conductors then? Do you recommend a fat one or a thin one ... and where does the earth spike go?
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