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SPIKER · 05-18-2004, 10:16 PM

Like someone said not much will survive the lightning strike...

The copper conductor usually will be leave a tail tale sign that there was a hit, there should be a fused link in the run near the gorund and that will blow out, and then the lightning will still let current flow, but at a reduced rate as it will use the vaporized copper that is in the air as a current path. quite impressive needless to say!

I was looking out a window durring a storm when I was 16 or so, it struck an old ELM tree about 60 yards out. I went out to take a look the next day. I WISH I had a camera back then. it took the bark off in a spiral candycane type stripes 4 of them one on each quarter. the strips were about 1" wide and 1" deep in the wood/bark. and laied out away from the tree like some one took a giant apple peeler and ran it down each quadrant of the tree and left the bark attached to the base still but the top starting pints fell back about 40 feet out and away form the tree's main trunk!

Anyhow the roof is susposed to be Insulated from the rods that way the lightning goes out around the structure... someone mentioned this above too...

Mark m [img]/forums/images/graemlins/smile.gif[/img]

05-18-2004, 10:16 PM	#10 (permalink)
SPIKER Veteran Member Join Date: Jun 2002 Location: Ohio, Ashland Cty, Jeromesville Posts: 2,395	Re: Grounding a Tin Roof Like someone said not much will survive the lightning strike... The copper conductor usually will be leave a tail tale sign that there was a hit, there should be a fused link in the run near the gorund and that will blow out, and then the lightning will still let current flow, but at a reduced rate as it will use the vaporized copper that is in the air as a current path. quite impressive needless to say! I was looking out a window durring a storm when I was 16 or so, it struck an old ELM tree about 60 yards out. I went out to take a look the next day. I WISH I had a camera back then. it took the bark off in a spiral candycane type stripes 4 of them one on each quarter. the strips were about 1" wide and 1" deep in the wood/bark. and laied out away from the tree like some one took a giant apple peeler and ran it down each quadrant of the tree and left the bark attached to the base still but the top starting pints fell back about 40 feet out and away form the tree's main trunk! Anyhow the roof is susposed to be Insulated from the rods that way the lightning goes out around the structure... someone mentioned this above too... Mark m [img]/forums/images/graemlins/smile.gif[/img]