MMC CAPS

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Binny" <binny-at-midmaine-dot-com> 

Does anyone out there know how to order  Cd 942's from the Geek Group? Was
just over to their site and could not find a link that worked to the
corporate HQ.  If you guys are out there could you tell me if you have any
942C20P1K's in stock and how much? And as always I can't tell you how much I
have enjoyed this list, thanks to all who have contributed to it.
----- Original Message -----
Binny
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, March 19, 2004 12:13 PM
Subject: RE: RE:Tesla Coil Grounding (was - Pig setup help.)


 > Original poster: "John H. Couture" <couturejh-at-mgte-dot-com>
 >
 >
 > Gerry -
 >
 > Your TC should always have a controlled spark to a fixed ground so there
 > would be no dangerous sparks. The way I look at it there is enough danger
in
 > TC operation without having uncontrolled sparks. Connecting the utility
 > ground to the TC secondary circuit ground is up to the coiler. Ham radio
 > operators have these grounds separate to keep noise out of the utility
 > lines.  Life Safety is not a consideration. The NECode has rules for
 > grounding the secondary side of a power transformer but this doesn't
include
 > Tesla coils.
 >
 > John Couture
 >
 > --------------------------------------
 >
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: Wednesday, March 17, 2004 10:15 AM
 > To: tesla-at-pupman-dot-com
 > Subject: Re: RE:Tesla Coil Grounding (was - Pig setup help.)
 >
 >
 > Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net>
 >
 > Hi John,
 >
 > My only concern about meeting code for this case is the consequence if the
 > main safety ground makes the return path for a strike.  This could be very
 > expensive :-((
 > The transformer is usually only connected to mains power during
supervision
 > by the operator.  So it is the operators responsiblility to keep
spectators
 > out of the "danger zone" containing the transformer grounded to RF ground.
 > If the transformer were to be connected to mains perminently, this would
be
 > a totally different situation.
 >
 > Gerry R
 >
 >
 >   > Original poster: "John H. Couture" <couturejh-at-mgte-dot-com>
 >   >
 >   >
 >   > Gerry -
 >   >
 >   > I agree there is very little that coilers do that would meet standard
 >   > electrical codes. However, if they ground the transformer case to the
 > green
 >   > wire ground this will be according to the electrical codes.
 >   >
 >   > When you ground one of the insulated bushings this could meet the
codes
 >   > provided you connected the one where the winding is closest to ground.
 >   >
 >   > John Couture
 >   >
 >   > ------------------------------------
 >   >
 >   >
 >   > -----Original Message-----
 >   > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 >   > Sent: Tuesday, March 16, 2004 10:28 AM
 >   > To: tesla-at-pupman-dot-com
 >   > Subject: Re: RE:Tesla Coil Grounding (was - Pig setup help.)
 >   >
 >   >
 >   > Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net>
 >   >
 >   >
 >   > Hi John,
 >   >
 >   > I wonder what code would say about a pig grounded to mains ground with
 >   > exposed bushings that can kill.
 >   >
 >   > I suspect nothing about our hobby meets code unless we enclose the
entire
 >   > setup in a faraday cage and put a barbed wire fence around it with a
gate
 >   > locked at all times :o)))
 >   > But that is why we supervise the operation and be responsible and
safety
 >   > conscious.
 >   >
 >   > Gerry R
 >   >
 >   >   > Original poster: "John H. Couture" <couturejh-at-mgte-dot-com>
 >   >   >
 >   >   >
 >   >   > All -
 >   >   >
 >   >   > To my knowledge all safety codes regarding the grounding of power
 >   >   > transformers say the transformer case should be grounded to the
green
 >   > wire
 >   >   > as defined in the codes.
 >   >   > The main grounding question for Tesla coils is the connection of
the
 >   > green
 >   >   > wire network to the secondary circuit (so-called RF) ground.
 > Apparently
 >   >   > coilers do it both ways, some connect and some do not connect.
There
 > are
 >   > no
 >   >   > codes for this type of connection. From a safety standpoint not
 >   > connecting
 >   >   > the two could be a hazard to humans. If you are taking sparks from
a
 >   > small
 >   >   > or medium TC the line voltage could kill you if there is a spark
 > between
 >   > the
 >   >   > primary and secondary coils.
 >   >   >
 >   >   > John Couture
 >   >   >
 >   >
 >   >
 >
 >
 >
 >