Consequently, installers of lightning protection systems have to

Trust Co.
Consequently, installers of lightning protection systems have to
select the connection components
for the duty (H or N) to be expected
on site. A clamp for duty H (100 kA), for
example, has to be used for an air-termination
rod (full lightning current) and a clamp for duty N
(50 kA) has to be used in a mesh or at an earth
entry (lightning current already distributed).

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