On Fri, 24 Oct 2003 22:46:34 +0000 (UTC), "DKSanders"
wrote:

I have been asked to fit a lightning conductor to a friends house extension

_DON'T_ !

You have to design these systems (it's not hard, but it's more complex
than you might think). There's a BS (6651 ?) standard you have to
comply with, if it's to be seen as a "competent" system.

Earthing the things to BS (7430 ?) is as complicated as putting in the
conductor, if not more.

There's also a working at height problem, which often involves renting
a tower / scaffolding or whatever (and you now need sign-off by a
qualified rigger if you erect scaffolding).


I used to know some of this stuff (I was working on GSM base station
configuration) and it's not as simple as you might hope. It's really
not something I'd want to go through "for a friend" - it's the sort of
job that's a pain to do, it will take you longer (and maybe cost more)
than someone who does it regularly, and the comebacks if there's ever
any sort of lightning strike really will put you in the position of
having been personally responsible for an act of God. On the whole,
I'd rather replumb their gas cooker.

I'd probably do my own. But there's no way I'd do someone else's.

--
Die Gotterspammerung - Junkmail of the Gods