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24 of 25 people found the following review helpful
5.0 out of 5 stars Testing Electrical Installations A practical guide for electricians: A Practical Guide for Electricians, 19 Sep 2007
This review is from: Testing Electrical Installations A practical guide for electricians (Paperback)
I think this is an excellent publication. I take on board the comments about testing for Zs and I agree with the author of the book. I have come across installations where there is no actual true Ze, but it is being provided by other parallel earth paths. Testing this way is about risk assesment and there is a big difference between testing domestic and industrial properties. At least this author has had the courage to pragmatically show testing and the efficient and accurate ways to do it. Too many people think they know how to do it, but have never actually tried to do it. If they had they would understand the confusing results that you get with the effect of the parallel earth path problem - difficult to explain when the sums just do not add up!
My only criticism of the book is that it would have been nice to have had the Zs table and the protective devices table and fault current graphs included out of the regs. It would just reinforce why we are testing and what we are truly looking for.
But an essential for those sparks who need a refresher and don't want long winded explantions and an absolute must for any young sparks starting out, I wish I had this 30 years ago.
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4.5 out of 5 stars (15 customer reviews)
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