Braided Wire Sheathing Specifications

C

CluPhone

#1
Hi All.

Seems lately when I post as question, I post the most difficult ones as they not only stump me... but seemingly others. Good fodder for someones PhD dissertation perhaps? Here is another.:frust:

I have a braided copper cable with a PVC insulation that is used HEAVILY by an operator. Because the electronics attached to this device is a mission critical part, I want to ensure the insulation is extruded in such a manner that it maintains a DURABLE mechanical bond to the copper braid. This bond then ensures that the load path for axial and torsional stresses are carried by BOTH the braid AND the insulator as a composite, not two individual materials. This helps the cable to transfer a torsional load across the length of the cable, and not in a localized area (resulting in wire and braid fatigue).

With that said, is there some ASTM or JEDEC specification or other (unbenounced to me obviously) that would enable me to place a control on a print to ensure the cable is made in the above manner? OR, are there some inspection methods or plans anyone has come across for such a part?

Thanks for taking time to read and perhaps provide some feedback on this.
 
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Stijloor

Staff member
Super Moderator
#2
Hi All.

Seems lately when I post as question, I post the most difficult ones as they not only stump me... but seemingly others. Good fodder for someones PhD dissertation perhaps? Here is another.:frust:

I have a braided copper cable with a PVC insulation that is used HEAVILY by an operator. Because the electronics attached to this device is a mission critical part, I want to ensure the insulation is extruded in such a manner that it maintains a DURABLE mechanical bond to the copper braid. This bond then ensures that the load path for axial and torsional stresses are carried by BOTH the braid AND the insulator as a composite, not two individual materials. This helps the cable to transfer a torsional load across the length of the cable, and not in a localized area (resulting in wire and braid fatigue).

With that said, is there some ASTM or JEDEC specification or other (unbenounced to me obviously) that would enable me to place a control on a print to ensure the cable is made in the above manner? OR, are there some inspection methods or plans anyone has come across for such a part?

Thanks for taking time to read and perhaps provide some feedback on this.
Can someone help?

Thanks!

Stijloor.
 

somashekar

Staff member
Super Moderator
#3
Can someone help?

Thanks!

Stijloor.
One of the aspect we specify in such a braided wire sheathing specification that is used as shield in our cables is to mention the wire gauge and the minimum coverage %.
Ex : Braided wire shield, 30 AWG, 90% minimum coverage.
Depending on the % minimum coverage specified the closeness of the wire in the braiding is decided by the manufacturer.
Hope this helps ...
 
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