| 摘要 |
FIELD: electricity. ^ SUBSTANCE: symmetrical four-pair cable comprises polymer-insulated strands twisted into pairs with outer polymer coating, each two pairs are placed into B-forms of modules, besides, in each window of a B-form module there is one pair, windows of each B-form module are directed into opposite directions, and each B-form module is made of a perforated polymer tape, ends of which are closed in the middle of the tape to make windows of identical size along the whole length of the cable. ^ EFFECT: reduction of interference between pairs. ^ 1 dwg |
