| 摘要 |
An improved method of twisting cables, particularly communications cables, made up of a plurality of cable units so as to maintain a high manufacturing rate while minimizing electrical coupling between cable units in which the process parameters, controlling a known SZ reversing twisting devices which twist the cable units, are randomly varied to cause the sums and differences of the twist, d and the number of reversals per unit length, a, to be continuously and alternatly increased and decreased by at least 0.5 percent about a mean value and so that one of the sum (d+a) and the difference (d-a) of each unit differs from that of at least one other unit by less than 10 percent. |
