Testing ... depends on the specifications.

Insulation has a maximum voltage rating, and a maximum temperature
rating, but I don't think it has a maximum current rating unless that
is calculated from other values.

That calculation must take into consideration how the cable is held,
if it is in conduit, bare, what sort of air flow.

So I would put the cable into service, set the ambient temperature to
the maximum expected, and then raise current until the insulation
overheats.  ;-)

--=20
James Cameron
http://quozl.linux.org.au/
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