What is the purpose of this thread (in fact all my posts)? firstly it is not a pissing contest, it is an attempt to get the facts correct.
Lets get it right, it not about us, its is about public safety.
Now that we have that out the way.
When do you install lightning protection and when is only bonding or earthing required, is there a difference between lightning protection, bonding and earthing?
6.13 Bonding
NOTE 1 The aim of bonding is to bring all the bonded parts to the same electrical
potential.
NOTE 2 No external conductor is required if compliance with the requirements for
continuity can be proved by the test in 8.6.2.
8.6.2 Continuity of bonding
Confirm the continuity of the bonding conductors between all exposed
conductive parts within arms reach (or see annex A) of each other. When a
test device or instrument is used, it shall have a supply that has a no‐load d.c.
or a.c. voltage of 4 V to 24 V, and a current of at least 0,2 A. In each case, the
resistance shall not exceed 0,2 Ω.
6.13.1 Bonding conductors
A bonding conductor shall
a) have a nominal cross-sectional area of at least 2,5 mm2
copper or
equivalent, and
b) be so arranged that it cannot be tampered with.
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