what is the compact conductor ?

STRANDING CONSTRUCTIONS

CONCENTRIC - A central core wire surrounded by one or more layers of helically applied wires.

COMPRESSED - A concentric stranded conductor where each layer is passed through a closing die to reduce the diameter of the stranded conductor by 3%. Southwire's registered trade name for compressed stranding is ARROWSTRAIGHT.

COMPACT - A concentric stranded conductor where each layer is passed through a closing die to reduce the diameter of the stranded conductor by approximately 10%.

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Concentric Round : 1,13xD
Compressed         : 1,1xD
Compact               :1,0xD
Solid                     

Compressed Strand

Compressed conductors are intermediate in size between standard concentric conductors and compact conductors. A comparison is shown below:
Concentric, compressed, compact and solid conductor comparison.



In a concentric stranded conductor, each individual wire is round and considerable space exists between wires. In a compressed conductor, the conductor has been put through a die that "squeezes out" some of the space between wires. In a compact conductor each wire is preformed into a trapezoidal shape before the wires are stranded together into a finished conductor. This results in even less space between wires. A compact conductor is, therefore, the smallest in diameter (except for a solid conductor, of course).


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