Stranded vs solid wire
Existential Angst wrote:
Awl --
Apropos of the recent thread on wire nutting stranded with solid, are there
any inherent advantages of one over the other? #14-#10.
Stranded is more flexible, an advantage if you have to pull long runs in
bends in EMT, but I find it a pain when connecting outlets, etc.
Stranded can be dicey-er with nicks, missing strands.
But, stranded might give more contact area under screws, in breakers, etc.
At HD, stranded is $5 more on 500 ft coil of 14 and 12: $25 to $30, and $40
to $45.
BX/romex comes which way? Both?
Who uses what and when?
I don't recall solid conductors in an automobile. Stranded wire is less
subject to metal fatigue from bending or vibration. The smaller a
conductor is, the farther it can flex without bending the metal.
Stuff with 7 or 19 strands is usually classified as Rigid Stranded Wire.
Flexible Stranded Wire usually has 49 strands or more. I'd hate to try
to connect the flexible stuff with a wire nut. Until recently, the NEC
required crimping for it. Now there's an approved screw terminal.
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