Jeff,
I don't know of current Code that permits a circuit that lacks an
equipment ground conductor run with the current-carrying conductors.
That sort of thing was permitted in much older Codes, and old work is,
for the most part, grandfathered. But it remains a really bad thing. To
understand one reason why this is bad for ham radio (and component audio
systems), see Slides 122-129 in this link, which are slides for a talk I
did at Pacificon last fall and will do at Visalia next month. There's
also a safety issue.
http://k9yc.com/GroundingAndAudio.pdf
73, Jim K9YC
On Mon,3/20/2017 2:36 PM, Jeff DePolo wrote:
Although a little different than the instant case, there are some situations
where NEC not only allows but requires that you to bond neutral to the
chassis of an appliance as a substitute for a separate EGC whre one doesn't
exist. Electric dryers, ranges, and ovens come to mind.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|