Stranded or Solid networking? Also, Plenum?

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Stranded or Solid networking? Also, Plenum?

Postby Ghen » Thu Apr 09, 2009 11:39 am

I have about 50' of plenum cable left over from the previous IT guy. It doesn't say on the box though whether its solid or stranded cable. Is plenum always solid core?

Also, How can I tell the difference between the two types of cable?


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Postby Karlsweldt » Thu Apr 09, 2009 3:07 pm

Plenum cable is different from 'standard' cable only in the insulation, having a higher melt temperature (105°C.) and better shielding, plus a fire-retardant sheath. You can easily check whether the wires are solid or stranded by bending a sharp kink in one place. If the kink stays, the wires are solid. If the kink goes away, then the wires are stranded.
If still in doubt, then strip a short length of one cable end.
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Postby Comp_parter » Thu Apr 30, 2009 2:53 pm

Stranded will have many small wires in each jacket of wire covering.
Solid is one solid wire per jacket. I have always heard that you use
Solid cable for premise wiring i.e. long cable runs where the cable never
moves like in a ceiling or wall and then you use stranded for patch cables
for connecting workstations to wall outlets and so on..
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