[Milsurplus] Fw: AC Power on Ships

[Chuck]

John:

I just checked on the HNSA site under "Electric Power Distribution Systems 
(1998)" and they state that all Navy Ships operate with ungrounded power. 
For shops aboard that need it, they now install GFI systems in the spaces 
needed.

>From that I think the the WW2 stuff was not grounded except where needed. 
My manual for my TCZ (ART-13) showes 110v DC with no provision for a ground 
except what was needed for RF.  I sailed on the U.S.N.S. J. E. Robinson 
(TAG-170) in the 60's (was orginally S.S. Czechoslovakia Victory) and seem 
to remember that every thing outside of the Electronic Spaces was one wire 
and the Hull was the other leg ! ! ! !

Chuckm
N7UVZ
(Ex NXID 62-64)
----- Original Message ----- 
From: "J. Forster" <jfor at quik.com>
To: <milsurplus at mailman.qth.net>
Sent: Sunday, October 24, 2010 3:18 PM
Subject: [Milsurplus] AC Power on Ships


> Hi,
>
> I was just asked about the AC line on WW II era ships. It appears there is
> no neutral and the 115V 60 Hz just floats with each line 60-80 V AC above
> structure.
>
> Is this correct and common or is there a fault?
>
> And, more importantly why would they do it this way?
>
> Best,
>
> -John
>
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