On Tue, 30 Jun 2009 12:55:11 GMT, (Doug Miller)
wrote:

In article , Metspitzer wrote:

2 amps of current might melt solder on those printed circuit cards you
use, but it would be negligible on 12-14 gauge wires that are used in
houses. It would take something like using a toaster oven and a Fry
daddy on the same circuit. That could bring the wire close to a
temperature that would melt solder. A short circuit (random fault)
would for sure. That is why the NEC requires splices to be
mechanically secure before using solder.

To quote your own words: "It is obvious ... you really don't understand what
is going on."

That is *not* why the NEC requires soldered splices to be mechanically secure
without the solder. The NEC requires that because solder lacks the strength
necessary to make a connection mechanically secure.



In part. Also the joint MUST be able to stay mechanically connected IF
the solder joint fails The copper wires must be able to form both a
solid mechanical and electrical connection - the solder just seals the
joint to prevent oxidation and prevent the joint from working loose.