Norm of Bandersnatch wrote:
> In addition, I have had the experience of clamped joints using stranded
> wire loosening up in time, I suppose from movement due to temperature
> changes, the strands seem to "settle in".  After a few weeks I go back and
> retighten clamped stranded wire joints. 
>
> I have more faith in soldered stranded wire joints than in clamped stranded
> wires.  I have had zero problems with any of my soldered offstickers.
>
> Norm

REPLY
Once again  I tend to agree with Norm.  
Sadly  many  people  still have to contend with  insurance surveyors  
and conforming to  "standards"  and  otherwise  complying with some 
arbitrary  regulation on how things must be done.

ABYC for example  does not permit soldered only connections. The one 
exception being  battery cables on the battery clamp end.  Curious, why 
allow it on  the most critical location but then prohibit it anywhere else.

While working as  the Quality Assurance Manager for an electronics 
company  selling  equipment to the government and military
I had occasion to challenge this  solder only versus crimp  argument.
I had  the production people prepare a number of crimped connections 
and  an equal number of soldered only connections.
I then applied  the pull test  as per the standard  to determine the 
exact breaking point of the connection. 
To everyone's surprise the wire sometimes broke before the connection 
did.  
The test jig  provided an exact  reading of the tension pull just before 
the wire broke.
It proved that soldered connections  properly made was equal to  crimped 
connections and in some instances exceeded the breaking strength of the 
wire involved. 
Even so we still had to conform to the "standard"   <smile> 
The government inspector said he did not have any authority to over ride 
a standard called up by contract.

So yes I think Norms soldered connections are fine.  I bet they will 
probably  still be fine  when the boat itself is eventually scrapped  
many decades from now.  Steel  doesn't last forever.  Soldered copper 
does. 

Cheers
Arild




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