[Elecraft] [K3] Why fuse the negative lead from a battery?

Jim Brown jim at audiosystemsgroup.com
Mon Apr 4 22:13:01 EDT 2011


Thanks Gene.I;m not the guy who cares about boats, so  I'm posting this 
to the list so that the folks who do will see your response.

73, Jim K9YC

On 4/4/2011 4:09 PM, Gene Fuller wrote:
> Hi Jim,
>
> Marinas are indeed covered under the NEC. However, almost all power 
> outlets for boats are either 30A or 50A. As you may know, GFCI 
> protection is not generally required for any circuit/outlet greater 
> than 20A.
>
> At the same time, boats are specifically excluded from the NEC, so no 
> real requirement there either. Most newer boats have individual 
> circuit GFCI for AC outlets, but this a rule in the "advisory" ABYC 
> specs, not a regulation. The double breaker for the ungrounded (black) 
> and grounded (white) conductors is also an ABYC rule. All boat 
> builders follow these rules today, but the situation was quite 
> different 15 or 20 years ago.
>
>
> 73,
> Gene
> W4SZ



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