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Re: Do/Don't? Soldering Wire Tips Before Sticking into Terminal Block



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Re: Do/Don't? Soldering Wire Tips Before Sticking into Terminal Block

Archimedes' Lever10 Mar 2010 05:18
>> [hmmm... that begs the question:  what term to use
>> to refer to describe the "side" (direction) that you
[quoted text clipped - 3 lines]
>The side into the wind would be "windward" side, so the other side
>would be "leeward".  ;-)

 This group is full of dolts and idiots.

keithw86@gmail.com08 Mar 2010 19:06
> [hmmm... that begs the question:  what term to use
> to refer to describe the "side" (direction) that you
> turn *into*?  E.g., what I have called "right" in
> this example]

The side into the wind would be "windward" side, so the other side
would be "leeward".  ;-)

D Yuniskis08 Mar 2010 18:03
> If you really don't want to use ferrules a dab of solder right on the end
> will hold the strands together while keeping just copper under the screw
> but it is hard to achieve consistently.

A friend used to (haven't seen him in decades so no idea
if he ever "learned better"  :>) part the strands into
two groups.  Then, slip the screw between the groups.
Finally, twist the groups together on the "far side"
of the screw.  I.e., the screw is now captive to the
wire.

This made it easy to attach wires in often hard to reach
places -- but it was just *so* wrong in so many ways!  :<
(copper on the "right" side of the screw ends up being pushed
out of the way as the screw is tightened)

[hmmm... that begs the question:  what term to use
to refer to describe the "side" (direction) that you
turn *into*?  E.g., what I have called "right" in
this example]

nospam08 Mar 2010 17:42
>Is it ok to solder the tips of stranded wire before inserting into a
>terminal block?

No.

The 'spring' in what you screw down on is what maintains pressure on the
screw threads and so maintains friction to prevent the screw turning.

Compare the 'springiness' of a bit of solder with a similar bit of copper
wire and why it is a bad idea is obvious (and the copper will work harden
and become even more 'springy').

If you really don't want to use ferrules a dab of solder right on the end
will hold the strands together while keeping just copper under the screw
but it is hard to achieve consistently.

D from BC08 Mar 2010 03:08
Is it ok to solder the tips of stranded wire before inserting into a
terminal block?
I like soldering the tips so that there's no wire fraying or free
strands.
But...Does the solder slowly compress after awhile and the wire gets
loose?
Sure I could perhaps a crimp on pin terminals to stick in the terminal
block.
Ex:
http://www.molex.com/pdm_docs/sd/192110001_sd.pdf
I'm afraid I'll have to buy a ridiculously priced crimping tool that'll
get used a few times and then be forgotten. :(

Signature

D from BC
British Columbia


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