Forum Support Old55 Posted December 10, 2018 Forum Support Posted December 10, 2018 Has anyone a lightning rod connected to their home or building? Is it worthwhile having one installed? Link to comment Share on other sites More sharing options...
Jack Peterson Posted December 10, 2018 Posted December 10, 2018 (edited) 35 minutes ago, Old55 said: Has anyone a lightning rod connected to their home or building? Is it worthwhile having one installed? Yes Dan, I have one from the main Roof Section than goes down and out to the Base of the Electric supply pole out on the Road (It is a metal Pole) and connects to the Supply Companies own Lightning Rod, We also have one in the roof for the Internet and satellite system, We had them done whilst building so I have no idea of costs but we have had a few Hits up here, So I am glad we had it all done Edited December 10, 2018 by Jack Peterson added a little 1 1 Link to comment Share on other sites More sharing options...
bastonjock Posted December 10, 2018 Posted December 10, 2018 The concept of the lightning protection system is based on Benjamin Franklin's experiments The concept is for the rod to divert as much of the lightning down to earth and give it a path that is safer than through your house, lightning can do tremendous damage it can even jump across rooms and if it find water , it boils the water turns it into steam and boom , the reason that trees explode is that the lightening boils the moisture in the tree Anyhow what is needed is a conductor , copper preferred and this should be the highest point of your structure , a strap again copper preferred but I don't think it would last long in the Phil's, so aluminium is the next best choice , an aluminium bar of say 10 x 30 mm would be sufficient ,and insulated from the house by way of non conductive/ high reaistance material .I.e wood , this should run down to the ground and attached to earthing rods buried about 1 to two meters in the ground There is no cast iron guarantee against lightening damage if you ger hit by a 150000 amp strike , the lightening rod may well melt 1 Link to comment Share on other sites More sharing options...
jimeve Posted December 11, 2018 Posted December 11, 2018 11 hours ago, bastonjock said: The concept of the lightning protection system is based on Benjamin Franklin's experiments The concept is for the rod to divert as much of the lightning down to earth and give it a path that is safer than through your house, lightning can do tremendous damage it can even jump across rooms and if it find water , it boils the water turns it into steam and boom , the reason that trees explode is that the lightening boils the moisture in the tree Anyhow what is needed is a conductor , copper preferred and this should be the highest point of your structure , a strap again copper preferred but I don't think it would last long in the Phil's, so aluminium is the next best choice , an aluminium bar of say 10 x 30 mm would be sufficient ,and insulated from the house by way of non conductive/ high reaistance material .I.e wood , this should run down to the ground and attached to earthing rods buried about 1 to two meters in the ground There is no cast iron guarantee against lightening damage if you ger hit by a 150000 amp strike , the lightening rod may well melt would aluminium not melt? 1 Link to comment Share on other sites More sharing options...
GeoffH Posted December 11, 2018 Posted December 11, 2018 56 minutes ago, jimeve said: would aluminium not melt? Maybe but copper can melt too. Link to comment Share on other sites More sharing options...
jimeve Posted December 11, 2018 Posted December 11, 2018 32 minutes ago, GeoffH said: Maybe but copper can melt too. I should think the thickness would make a difference. Link to take the guess work out. http://www.esgroundingsolutions.com/blog/664/what-are-calculations-regarding-lowering-earth-resistance-using-copper-rods-tapes-at-telecom-tower 1 Link to comment Share on other sites More sharing options...
Jollygoodfellow Posted December 11, 2018 Posted December 11, 2018 I dont get why anyone would put up a target in the first place. As we know lightning is looking for the shortest route to the ground so if there are other higher objects in the area why not let them have it. Link to comment Share on other sites More sharing options...
roddavis Posted December 11, 2018 Posted December 11, 2018 4 minutes ago, Jollygoodfellow said: I dont get why anyone would put up a target in the first place. As we know lightning is looking for the shortest route to the ground so if there are other higher objects in the area why not let them have it. Case in point, three years ago had a large thunder storm with lightning. I was standing under the front porch watching when a lightning bolt struck the cell tower 150 feet away in front of me! Tower survived but it never had its red light on at night anymore since then. When I walked into the house after the lightning strike, the 2 tv's didn't work anymore! The cable was connected to which came from the cell tower! So as long as there are any structures or tree's taller than your house, I don't think you need a lightning rod! 1 Link to comment Share on other sites More sharing options...
Jack Peterson Posted December 11, 2018 Posted December 11, 2018 5 minutes ago, roddavis said: So as long as there are any structures or tree's taller than your house, I don't think you need a lightning rod! Not necessarily Rod, Lightning can be Selective it is path; http://stormhighway.com/what_happens_when_lightning_strikes_a_house.php Link to comment Share on other sites More sharing options...
GeoffH Posted December 11, 2018 Posted December 11, 2018 8 minutes ago, roddavis said: So as long as there are any structures or tree's taller than your house, I don't think you need a lightning rod! Lightning doesn't always strike the highest object, it's more about the electron path and the resistance to ground (as my limited understanding has it). This strike hit a car despite the light pole nearby being higher, happened this week in Bendigo only a few kilometres from my house, the storm was LOUD (I'm in oz right now and will be until after christmas). https://www.9news.com.au/national/2018/12/10/15/13/moment-lightning-hits-parked-car-in-bendigo-victoria?fbclid=IwAR1KxCD2fGhbJ3VF-JN_XYT9w-H4T-1ydj-l1QNtXI85cuNGFmqb2QvYe7k 1 1 Link to comment Share on other sites More sharing options...
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