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Topic Title: How difficult to install TT system Topic Summary: Created On: 24 February 2010 07:50 PM Status: Post and Reply |
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 25 February 2010 12:08 PM
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The sandy soil where I live (literally right behind the sand dunes onto the beach) means that in many places it's easy to sink a 4 ft. rod by just putting a small block of wood on top and using hand pressure - Not even any sort of mallet needed. Of course, the resistance isn't exactly at the low end of the scale......
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25 February 2010 12:38 PM
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Of course, the resistance isn't exactly at the low end of the scale...... Except when the tides in. |
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25 February 2010 02:28 PM
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A TT earthing conductor could be as small as 2.5mm2 (provided mechanical protection/burial conditions are OK), so 6mm2 bonds may well satisfy all requirements. - Andy. |
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25 February 2010 02:29 PM
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Except when the tides in. 
By the time it gets that far we'd better throw the main switch and evacuate! |
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25 February 2010 07:29 PM
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I always use 10mm for the earth rod cable, I know it's not necessary but less likely to get damaged I reckon.
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How difficult to install TT system
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