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Old 16-10-2013, 21:33   #16
GWB
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Re: Marine Grounding

Not sure why Mark thinks his method minimises stray voltage corrosion. What is the thinking here?
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Old 16-10-2013, 21:34   #17
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Re: Marine Grounding

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Originally Posted by Rusty123 View Post
3. Why can't the shore power ground be adequately isolated with an appropriately sized capacitor(s)?
For one thing, the appropriate size capacitor would be the size of a trash can.
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Old 17-10-2013, 00:59   #18
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Re: Marine Grounding

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Originally Posted by Rusty123 View Post
2. Why does the AC system need to be grounded to the engine block? Grounded via shore power ground, sure, but what advantage is grounding the engine block? Is this just a precaution against the block becoming energized by an AC short? If so, is this the same concern that makes some people advocate grounding all metal objects (perhaps also answering question number 1)?

if an ac hot wire shorts it self against a through hull, engine block etc. without the bond you just electrified the water around the boat. and the engine room. people will get injuried. and they won't know until it's too late. by bonding them together. if a ac hot shorts any of the bonding system or dc neg. the ac breaker will blow as it's a dead short.
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