Water resistant communications cable

Details Water resistant communications cable Water resistant communications cable

H - Electricity

01

B

337/15

H01B 7/28 (2006.01) G02B 6/44 (2006.01)

Patent

CA 1309472

WATER RESISTANT COMMUNICATIONS CABLE Abstract A communications cable comprising a core of at least one transmission media and a plastic jacket includes provisions for preventing the movement of water within the cable. A water blocking yarn or strip is interposed between the core and the jacket and extends either linearly along the cable or is wrapped helically about a portion of the sheath system. In any plane along the cable which is traverse to the longitudinal axis of the cable, the yarn or the strip extends about an insubstantial portion of an inner periphery of the cable. As a result, any desired bond between the jacket and an underlying element of the cable sheath system is discontinuous for only an insignificant portion of the peripheral surface of contact. The yarn may be one which has been treated with a superabsorbent material whereas the strip may comprise a substrate strip which has been impregnated with a superabsorbent material which upon contact with water swells and inhibits the movement of water within the cable.

581335

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