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June 2009

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Subject:
From:
Joe Fjelstad <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Tue, 9 Jun 2009 10:59:52 EDT
Content-Type:
text/plain
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text/plain (137 lines)
There're there, their wires?  ;-) 
 
Joe
 
 
 
In a message dated 6/9/2009 6:55:19 A.M. Pacific Daylight Time,  
[log in to unmask] writes:

You mean  they're their tie-dyed.
Dewey

-----Original Message-----
From:  TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Tuesday,  June 09, 2009 6:40 AM
To: [log in to unmask]
Subject: Re: [TN] Green Junk  in Wire

Nope, they're just tie-wrapped at intervals...

Steve  

-----Original Message-----
From: Randall L Bock  [mailto:[log in to unmask]] 
Sent: Tuesday, June 09, 2009 8:37 AM
To:  TechNet E-Mail Forum; Steve Gregory
Subject: RE: [TN] Green Junk in  Wire

Steve,

Are these jacketed harnesses??   (Zipper)

-----Original Message-----
From: TechNet  [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Tuesday, June 09,  2009 9:35 AM
To: [log in to unmask]
Subject: [TN] Green Junk in  Wire

Good Morning!

We've just had something come-up that really  has a few of us scratching
our heads around here.

To preface this;  we have a mechanical assembly building where we put
cabinents and boxes  together plus do some cable and harness assembly.
Yesterday one of  engineers called me and said that they were seeing some
green stuff on some  of the cables that we've built and said that I
should come and take a look  at it. While I was walking over to the other
building it was thinking to  myself; "I hope that somebody didn't get a
hold of the wrong flux or  something...".

When I got there, I was really suprised at what I  saw:

http://stevezeva.homestead.com/files/Green_Junk_1.jpg

http://stevezeva.homestead.com/files/Green_Junk_2.jpg

http://stevezeva.homestead.com/files/Green_Junk_3.jpg

http://stevezeva.homestead.com/files/Green_Junk_Close.jpg

The  photos that you see come from a cable assembly that is about 3-feet
long,  and we're seeing it on cable assemblies that are longer. The wire
in the  assembly is a PTFE insulated single conductor shielded and
jacketed cable.  The conductor and shield is silver plated OFHC copper.
The photos are taken  from a section in the middle of the wire well away
from any area that  soldering has been done. The shields of all the wires
in the bundle get  soldered together at each end using a ORL0 wire solder
and flux. The green  substance appears throughout the wires. In "Green
Junk 3", you can see how  the green is with a group of the strands of the
braided shield and how it  spirals around the wire.

It goes without saying that I'm contacting the  wire manufacturer, and
I'm sending out a cable assembly for analysis. But  have any of you ever
seen this  before?

Steve

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