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  #1  
Old 07-26-14, 07:31 PM
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ground

Say you have 2 ground rods in the earth not connected.8 ft in the ground. About 45 ft apart in a straight line.
And you have the transmission line with its primary neutral about 50 ft away in the air in the opposite direction ,no obstructions. Wouldnt lightning tend to jump towards the power line
rather than the rods?? what do you think???
 
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Old 07-26-14, 08:09 PM
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Don't think for a moment grounding rods will withstand a lightning strike. It is not their intended purpose.
 
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Old 07-26-14, 08:25 PM
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Actually a ground rods purpose is a low impedance path to ground for high surge events such as lightning.

That said, nobody can really predict what lightning will do. It could easily strike both.
 
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Old 07-27-14, 09:27 AM
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Those two ground rods can satisfy the ground rod requirement for your home when interconnected (bonded) with a #6 copper wire. The requirement is that they be at least 6 feet apart.

The ground rods provide protection from indirect lightning strikes involving the electrical system connected to the rods. Not for inducing the lightning to strike the rods instead of other parts of the electrical system. (Nothing protects fully against a direct lightning strike.)
 
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Old 07-28-14, 12:10 PM
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so its just as likely that a close strike will not only go down the rods but back towards your systems also..???
 
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Old 07-28-14, 03:15 PM
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It will want to go to ground by nature, rather than to the panel, although a strong enough strike will render most anything in a house useless. There is definitely a difference in "surges" and a direct hit, thus the divergent answers.
 
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Old 07-28-14, 03:43 PM
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what do you want?

do you want to protect you house with a

WHOLE HOUSE LIGHTNING POWER PANEL SURGE PROTECTOR PLUS

8 foot ground rods are mostly useless...............unless they reach ground water

in the dry sand of central florida...............with ground water at 25 to 30 feet down...........you must drive a 30 or 40 feet ground rod to get the resistance under 25 ohms.
 
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