NOTE 6—The increment of mass or ele

NOTE 6—The increment of mass or electrical resistance of a completedconcentric-lay-stranded conductor, k, in percent is given by the followingequation:k = 100( m − 1)where m is the stranding factor, and is also the ratio of the mass orelectrical resistance of a unit length of stranded conductor to that of a solidconductor of the same cross-sectional area or of a stranded conductor withinfinite length of stranding, that is, all wires parallel to the conductor axis.The stranding factor (m) for the completed stranded conductor is thenumerical average of the stranding factors for each of the individual wiresin the conductor, including the straight core wire, if any (for which thestranding factor is unity). The stranding factor (mind) for any given wire ina concentric-lay-stranded conductor is:mind 5 =1 1 ~9.8696/n 2wheren = length of lay⁄diameter of helical path of the wire.This is taken to be ID + t for a given layer wh