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#66598 06/13/06 02:08 PM
Joined: May 2004
Posts: 116
Radar -

"Back to Steve's question for a minute. As noted by Larry and others, the 120V system is pretty much for convenience outlets and lighting. It's a 120V (or maybe 110V) plain delta, meaning there is no neutral. And as mentioned above, there is no bonding of any point in the electrical system to ground (hull). So the electrical systems float. You will read 120V phase to phase, and unpredictable values phase to ground because the electrical system is floating."

This is exactly what my friend Dan described. And that there was no neutral.

"Same with the 450V system, you'd read 450V phase to phase but unpredictable voltages between any point in the system and ground (hull)."

I don’t think he said anything about this, so am not sure if he measured it or not.

Thanks all for the info.


#66599 06/13/06 03:31 PM
Joined: Jul 2004
Posts: 9,772
Likes: 14
Radar, I suppose it is just a personal thing but when I got bit by 400hz on ships I thought it was worse than 60 hz. It sort of makes your ears ring instead of that old familiar hum.

Greg Fretwell
#66600 06/13/06 04:38 PM
Joined: Apr 2004
Posts: 349
It might possibly be that there was some degree of inebriation factor at work too. Back then anything was possible.

There are 10 types of people. Those who know binary, and those who don't.
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