Originally Posted by sully75
I'm confused by that. What does my school
inverter have to do with an ac voltmeter? I'm not plugging the inverter back into the ac system, it's just going out to whatever ac load I'd be running.
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Nothing at all. The ABYC requirement is rooted in safety
. A boat that has internal AC power can have lethal voltages even when disconnected from shore power
. A meter on the panel is an extra indication when there is still live AC onboard. If you use a small inverter and plug
directly into that there is not a big safety
issue. But if an inverter powers the whole boat it can be a "shock" if someone doesn't realize. It's similar to the big warning signs on homes equipped with a backup generator
. Disconnecting the main power feed from the grid will not make it safe.