Oops...   just the opposite, JoAnn.....   you need a certain amount of
copper to let all that current flow through, but you need to maintain a
certain amount of air to keep the voltage from jumping across to something
else.

For Internal conductors you need        0.0001  mils per volt
For external coated conductors          0.00012 mils per volt
For conductor to uncoated lead          0.00012 mils per volt



        -----Original Message-----
        From:   JoAnn Amerson [SMTP:[log in to unmask]]
        Sent:   Friday, September 18, 1998 10:31 AM
        To:     [log in to unmask]
        Subject:        Re: [DC] FW: pcb design rules

        On 18 Sep 98, Ken Brown wrote:

        > LOOKING FOR DEESIGN RULES FOT PCB LAND SPACING VS VOLTAGE  NEED TO
APPLY
        > 2KV BETWEEN LANDS AND CONNECTOR PINS.

        Hi Ken -

        You are trying to compare apples and oranges.  Voltage determines
the track
        widths needed, current determines the spacing between traces, pins,
etc.  At
        least I'm fairly certain about this answer.  I'm sure there will be
better answers
        forthcoming.  :-)

        Jo

        JoAnn L. Amerson
        Design Librarian
        Red Lion Controls, Inc.
        E-mail: [log in to unmask]
        Voice: (717) 767-6961 ext 6308


        Thought for the day:
          We should seize every opportunity to give encouragement.
          Encouragement is oxygen to the soul.
               -George M.Adams

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