Constant relating to conductor formation

The constant $K$ is taken from the 'Electric Cables Handbook', 3rd Edition, BICC Cables, 1997.

Values from the book are for stranded conductors at 50 Hz with 1 (solid), 3, 7, 19, 37, and 61 number of wires, the other values are interpolated.
The given values are applicable to non-compacted circular conductors.
For compacted conductors the value for solid conductor should be used.
Values for hollow conductors are dependant on the inner and outer diameter of the conductor. The book only lists the value 0.0383 for a 12 mm duct.
No information was given for shaped conductors, the same values are taken as for non-compacted circular conductors.
No information was given for other frequencies than 50 Hz, the same values are used.

Symbol

$K_{BICC}$

Related

$n_{cw}$

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