Published: 5 September 2008
Category: Q&A
Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This Question of the Day, concerning the sizing of copper earthing conductors, is answered by the ECA:
Question: Is my interpretation of Table 54.1 of BS7671 : 2008 correct, that the copper earthing conductor connecting to the earth electrode in a TT system must always now be a minimum of 16mm CSA, except when it is mechanically protected - where it can then be 2.5mm?
Answer: Your interpretation is correct. Please remember that the sizes given are, however, the minimum.
Answer: Your interpretation is correct. Please remember that the sizes given are, however, the minimum.
To see many more Q & A in Voltimum UK's Experts Area, please click on the link:
www.voltimum.co.uk/consult.php?universe=consult.index.questions