Re: Connecting #1gage to PCB

On Fri, 09 Mar 2007 03:06:28 GMT, Rich Grise <rich@xxxxxxxxxxx> wrote:

On Thu, 08 Mar 2007 18:57:48 -0500, Boris Mohar wrote:

My customer desires to secure #0 or #1 gage stranded copper wire to
a PCB.
Other than striping the insulation, it is desirable that no other
preparation of the wire is permitted. Is there some kind of
approved
transitional component that can be securely fastened to the PC
board,
provide a good interface to the copper pour on both sides and be
capable
of handling such heavy wire?


I'd go to the trouble of providing a substantial physical
(mechanical)
mounting for the wire itself, such that it's positioned to hold the
terminal in its "natural" position where it connects to the board.

There's no way I'd depend on anything less than about 7/16 - 1/2"
epoxy glass to secure a monster like that. Geez, just stand the wire
up and screw the board to it! ;-)


I would agree with you Rich.

For making cable connections to a PCB using such a large gauge it is
better to have the wires ends mounted in substantial brass terminal
blocks which are in permanent fixed positions. When the PCB is mounted
in its final position the brass terminal blocks are then secured to
the PCB pads with appropriate sized screws and locking washers. You
certainly don't want cables coming from a cable form or some-such
arrangement and then trying to secure the flying ends to the boards.
Fix the cables solidly in place and then bolt on the PCB as though you
were using solid copper bus-bar instead of flexible cable.
.

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