"Phil Scott" wrote in message
...

"Billy H" m
wrote in message
...

"Roy L. Fuchs" wrote in
message ...
On Sun, 5 Feb 2006 14:25:43 -0000, "Billy H"
m Gave us:




Slagging matches so **** me off in usenet posting.

Life is too short to be caught up reading about some fools'
gripes with
another in the middle of a serious discussion.


Makes it sound like Parliament. Part of the reason the
country is run by
lawyers methinks.


So ask the retarded *******s why they jumped on me for
making a
perfectly good, technical point.

If you jump, I will jump back. That's all there is to it.


And nobody apologises for making fools of themselves in
public


Maybe our friend Roy will.


Some people don't know any better. We must pity them.


.
In corrosive environments, stranded wire will corrode into the
crimmped terminal and around the wire, insulating the wire
from the terminal slightly causing it to burn, then fail..
thats common.

Accordingly battery cable manufacturers most often solder
their wire into the crimped terminal ends.

This practice is seen pervasively in marine environments on
both low amperage control circuits, and on power circuits.



Use of solder on power circuit terminals however has many
problems, namely the solder melting out of the joint if the
wire warms too much...and extrusion of the solder under
compressive stress if screw connectors are used.. the military
specs some are referring to cover that aspect... but not the
other aspects.


Use of solder in an already crimped terminal serves to
increase the electrical contact area, thats good, and to
preclude corrosive gases, vapors and oils from the joint (by
wicking up the bare wire).... that is seen commonly be the
cause of failure in those situations.


For the last 100 years... and currently.... most if not all
controls systems and component manufacturers dip wire ends in
solder that are to be fit under screw head connectors... the
practice is at least 90% common.... thats with *control
circuits.

The practice is not common with power circuits for the reasons
mentioned but is still seen in some situations (primarily
corrosive environments... anyone can purchase NEC approved
soldered connectors of course for those purposes... those are
also pervasively common, especially in the electronics
industry.)

.

220,000 hits... lots of good articles on the first page.

http://www.google.com/search?hl=en&q...=Google+Search

There is a time and a place to solder crimped or non crimped
terminals and bare wire ends to be fit under a screw head....
and a time when that is not a good idea (hot running
situations, although Ive seen pure silver or brassed
connections in those locations)



Phil Scott
Mechanical/ Electrical engineer and industrial controls
contractor since 1852 (I'm very old)