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[AMPS] safety check list

To: <amps@contesting.com>
Subject: [AMPS] safety check list
From: philk5pc@tyler.net (Phil Clements)
Date: Thu, 5 Apr 2001 20:58:55 -0500
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Ok what is a GOOD shorting stick? I don't think a screwdriver counts.
  Seems a friend used one on 2800v supply and it came through it and =
blew his fingernail off.

  What is the best way to make one?

  The one I have here was either military or commercial.
  No name on it; but I'll bet it cost the tax payers big bucks.

  The handle is a 1 inch plexiglass rod, 14 inches long. One end
  of the rod has 1/4" X 20 threads in it.  A 6 inch copper rod,
  rounded at the "business end" and threaded on the other is
  screwed into the plexiglass rod. There is a 3 foot length of
  1/2 inch braid encased in clear plastic tubing that is soldered
  to a lug where the copper and plexiglass rod join. The joint is
  secured with a 1/4 inch lockwasher and nut to hold the solder lug =
tight=20
  against the plexiglass rod. There is a giant alligator clip with a
  huge boot on it at the far end of the braid that clips to ground/
  chassis. The graph on the board all this mounts on says it is good
  for discharging up to 5 mfd at 25,000 volts, or 1000 mfd at=20
  2000 volts. 50 mfd at 6000 volts is also in the safe range.

  This is overkill for most of us, but it can be scaled down some.

  (((73)))
  Phil, K5PC


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<META http-equiv=3DContent-Type content=3D"text/html; =
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<META content=3D"MSHTML 5.50.4611.1300" name=3DGENERATOR>
<STYLE></STYLE>
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Ok what is a GOOD shorting stick? I =
don't think a=20
screwdriver counts.</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
  <DIV><FONT face=3DArial size=3D2>Seems a friend used one on 2800v =
supply and it=20
  came through it and blew his fingernail off.</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>What is the best way to make =
one?</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>The one I have here =
was either=20
  military or commercial.</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>No name on it; but =
I'll bet it=20
  cost the tax payers big bucks.</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff></FONT>&nbsp;</DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>The handle is =
a&nbsp;1 inch=20
  plexiglass rod, 14 inches long. One end</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>of the rod has 1/4" =
X 20 threads=20
  in it.&nbsp; A 6 inch copper rod,</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>rounded at the =
"business end"=20
  and threaded on the other is</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>screwed into the =
plexiglass rod.=20
  There is a 3 foot length of</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>1/2 inch braid =
encased in clear=20
  plastic tubing that is soldered</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>to a lug where the =
copper and=20
  plexiglass rod join. The joint is</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>secured with a 1/4 =
inch=20
  lockwasher and nut to hold the solder lug tight </FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>against the =
plexiglass rod.=20
  There is a giant alligator clip with a</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>huge boot on it at =
the far end=20
  of the braid that clips to ground/</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>chassis. The graph =
on the board=20
  all this mounts on says it is good</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>for discharging up =
to 5 mfd at=20
  25,000 volts, or 1000 mfd at </FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>2000 volts. 50 mfd =
at 6000 volts=20
  is also in the safe range.</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff></FONT>&nbsp;</DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>This is overkill for =
most of us,=20
  but it can be scaled down some.</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff></FONT>&nbsp;</DIV>
  <DIV><FONT face=3D"Comic Sans MS" =
color=3D#0000ff>(((73)))</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS" color=3D#0000ff>Phil, =
K5PC</FONT></DIV>
  <DIV><FONT face=3D"Comic Sans MS"=20
color=3D#0000ff></FONT>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>

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