[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: GFI on the NST--a bummer

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

I think that the goal for GFI NSTs is to protect the intended users (you
know, the window washer hoses down the sign, grabs a squeegee and ZAP.. or,
dark bar at 2AM, drunken patron spews on beer sign in window, ZAP...)

>From a TC standpoint, the goal is to use the increasingly large number of
GFI NSTs that are on the scrap heap at the sign company (I'll bet that a GFI
NST "fails in service" much sooner than the nonGFI units... the old ones may
have high leakage current, rust all over the case, be partially shorted over
the insulators due to debris, etc., but still light the sign...  )..

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, May 04, 2002 3:32 PM
Subject: Re: GFI on the NST--a bummer

> Original poster: "Barton B. Anderson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
> Curious as to whats the goal with GFI NST's. Is the idea to use the GFI to
> pretect the
> NST? If not, then why not simply remove the GFI and stick with a filtering
> scheme?
> Bart
> Tesla list wrote:
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <Goinbonkers-at-aol-dot-com>
> >
> > It would seem to me that if you have a good RF ground and protection
> > ala Terry Fritz,  you probably won't trip the GFI.   I used to run my
> coil on a
> > circuit in the house with a GFI and only tripped it once,  when a
> > occurred.   It doesn't seem like it could hurt to try anyway.
> > Mike
> >
> > >
> > > I just glommed on to two 12/60 France NSTs at our
> > > friendly neon sign shoppe. I paid only 20 bucks each.
> > > But the bad news is they both have a GFI button
> > > sticking out of the case. Can I put a clamp over that
> > > GFI button to hold it in, or is the only solution to
> > > melt out the potting and disconnect the GFI?
> > >
> > > More bad news is the guy at the neon shop said ALL
> > > new NSTs must now be provided with the integral GFI.
> > >
> > > Happy day,
> > > Ralph Zekelman
> > >
> > >