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Old 10-09-2021, 14:20   #31
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Join Date: Apr 2011
Location: NZ
Boat: S34 Bob Stewart - 1959 Patiki class. Re--built by me & good mate.
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Re: Leakage current on shore power cord question

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Originally Posted by GordMay View Post
Thanks, for correcting me [& others], Charlie.

You, of course are absolutely correct, and I was wrong.

Technical Bulletin: Understanding AC Leakage Current
In particular, see the 2ND Scenario, illustrated in Figure 7
https://www.marinadockage.com/techni...akage-current/

Beyond the basics: Electrical problems at a boat dock
Leakage currents, Kirchoff's law

https://www.fluke.com/en-ca/learn/bl...at-a-boat-dock

+1, on that. Never stop learning.
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Old 10-09-2021, 15:02   #32
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Re: Leakage current on shore power cord question

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Originally Posted by Nicholson58 View Post
Check the specifications for the transformer. Your short power is connected to the primary. Even if there is zero demand on the secondary there will be current flowing through the primary. This is the parasitic loss.

yes, the same amps in the hot and out the neutral. with a net of 0a on the cord when clamped. current usage from lack of efficiently is not the same as current disappearing.
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