On 17 Feb 2014, at 12:04, Tony Renshaw wrote:
> Quick question.why cant I tidy up a nicopress and squeeze it 90 degrees
> rotated
after the first squeeze, to tidy the compress? If the first squeeze is correct,
the second squeeze shouldnt disturb the consequences of the first, should
it??
Tony - I'd very much hesitate to do anything outside the recommended practice.
The security of the sleeve depends on the ductile copper flowing into the
surface
of the cable.
The thing with copper is that it work-hardens, which is one of the reasons that
the Nicopress people require that the 3 crimps using their tool be done in a
specific order. If you re-work an already-worked piece of copper, you could be
cracking it because it's no longer as ductile. Or, you could be loosening the
grip of the sleeve by trying to push the copper at 90 degrees to the first
compression.
If you're using one of the screw-down tools that compresses right across the
sleeve,
I'd suggest that you be happy with the result after the first full closure,
and not try to fiddle with it.
There's some very good stuff about all aspects of terminating cables in a recent
(Dec 2013) Kitplanes article. Here's the URL I use to read it, but you may not
be able to get there if you are not a Kitplanes subscriber:
http://www.kitplanes.com/issues/30_12/builder_spotlight/fabricating_cables_20888-1.html
in friendship
Rowland
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