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Re: NST SGFP & safety gap

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Lance,

Go to:


And read the threads about "GFI" in early May (search on "GFI").


Tells a lot!



At 11:07 AM 5/21/2002 -0400, you wrote:
>Hey All, 
>This morning I visited a sign shop and got a used 15/60 nst for $15.  On the 
>case it has a label reading "TO RESET SGFP TURN POWER OFF FOR 1 SEC. AND THEN 
>ON."  What exactly does this mean and will it be a problem in a TC system 
>(for some reason I have a feeling it will be). 
>Also, I am starting to make my safety gaps for my nst's.  I've read a lot of 
>different things about this so I just want to make sure I do it right.  Each 
>HV leg goes to a bolt of some sort with the sec. mid-point ground in the 
>middle, right.  Now, the gaps for each side of the secondary need to be 
>adjusted just beyond breakdown with NOTHING connected, right.  What do I 
>ground the mid-point grounds to.  This is the part I'm not sure about. Do you 
>connect it the the RF earth ground (same ground as the bottom of the 
>secondary coil) because I'm sure you don't connect it the the house ground.
>If I'm wrong about something, please let me know.  I greatly appreciate 
>everyone's help.