"Robert Morein" wrote in message

"Dave Plowman" wrote in message
...
In article ,
Arny Krueger wrote:
BTW, a good job of crimping amounts to cold welding with the extra
bonuses of high mechanical strength and inherent disruption of oxide
films or dirt on the connector or the wire. Given my choice, I'd
pick a well-crimped connection over the other two, but I would not
worry about a good job based on the other two methods. Crimping and
welding have the disadvantage of not being as field-repairable as
soldering.

The other beauty of crimping is that there is no weakening due to
heat close to the joint - perhaps not that important where the lead
is adequately clamped, though.

I don't understand your reasoning.
Electrical copper is, or should be, in a completely annealed state.
Heating the copper up isn't going to hurt it.

Heating disturbs the wire's plastic insulation, which provides a significant
amount of strength and resistance to sharp bends.

I have found, however, that soldered cable connections frequently
break from strain, even if they are correctly soldered.

A crimped connection typically includes some of the plastic insulation,
which strengthens the connection and helps avoid sharp bending near the
connection.

Connections
are frequently repaired over again, due to inadequate strain relief
on the center conductor that appears in large diameter coaxial cable.

Happens with small coax and non-coaxial cables, as well.