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    • 47. 发明申请
    • COMMUNICATIONS CABLE, METHOD AND PLANT FOR MANUFACTURING THE SAME
    • 通讯电缆,制造方法和设备
    • WO2002073634A2
    • 2002-09-19
    • PCT/EP2002/002003
    • 2002-02-26
    • PIRELLI CAVI E SISTEMI S.P.A.BRANDI, GiovanniDE RAI, Luca, Giorgio, Maria
    • BRANDI, GiovanniDE RAI, Luca, Giorgio, Maria
    • H01B11/04
    • H01B11/04H01B13/0292
    • A method, an extrusion apparatus (11, 111) and a plant (6) for continuously manufacturing a communication cable (1, 101, 201, 301) are described, wherein a plurality of twisted pairs (49) of insulated conductors (50) are housed in respective cavities (53) longitudinally formed within an elongated integral body (2). The cavities (53) have a substantially circular cross-section and a maximum diameter (D max ) adapted to prevent any relative movement of the twisted pairs (49) of insulated conductors (50) with respect to one another, while each of said pairs (49) of insulated conductors (50) is substantially free to move within said cavities (53) along the longitudinal direction (X-X) of the cable (1, 201, 301). Advantageously, the communications cable (1, 101, 201, 301) of the invention has both the desired electrical characteristics, such as a reduced cross-talk and good electrical stability, and mechanical characteristics which enable the cable (1, 101, 201, 301) to be easily manufactured, handled and installed.
    • 描述了用于连续制造通信电缆(1,101,301,301)的方法,挤出设备(11,111)和设备(6),其中绝缘导体(50)的多个双绞线(49) 容纳在纵向形成在细长整体(2)内的相应空腔(53)中。 空腔(53)具有基本圆形的横截面和最大直径(Dmax),其适于防止绝缘导体(50)的双绞线(49)相对于彼此的任何相对运动,而每个所述对 绝缘导体(50)的一部分(49))沿着电缆(1,201,301)的纵向方向(XX)基本上在所述空腔(53)内自由移动。 有利地,本发明的通信电缆(1,101,201,301)具有期望的电特性,例如减少的串扰和良好的电稳定性,以及使得电缆(1,101,201,301, 301)易于制造,处理和安装。
    • 48. 发明申请
    • A CABLE CHANNEL FILLER WITH IMBEDDED SHIELD AND CABLE CONTAINING THE SAME
    • 带有带屏蔽的电缆通道填料和含有它的电缆
    • WO01054142A1
    • 2001-07-26
    • PCT/US2001/001367
    • 2001-01-16
    • H01B7/18H01B11/04H01B11/06H01B11/08H01B11/02
    • H01B11/04H01B11/06H01B11/085
    • A cable channel filler or spline (126) and a cable (40) containing the cable channel filler or spline in its core. The channel filler extends longitudinally and has a plurality of spaced longitudinally extending open pockets (128, 130, 132, 134) in which wires (42) or cables, such as unshielded twisted pair cables, are placed and form part of the core. The core containing the twisted pair cables in the pockets is jacketed. The channel filler has an imbedded shield (136) that extends into each of the channel filler pocket legs and is preferably prepared from a single tape. Alternatively when two tapes are used for the shield, the first tape has three shield legs and with one leg being a folded over leg and the second tape forms the fourth leg and has 20 to 50 percent or at least 1/16 inches of one of its sides encased by the folded over leg of the first tape.
    • 电缆通道填料或花键(126)和电缆(40),其内部包含电缆通道填料或花键。 通道填充物纵向延伸并且具有多个间隔开的纵向延伸的敞开的袋(128,130,132,134),其中放置线(42)或电缆(例如非屏蔽双绞线电缆)并形成芯的一部分。 包含口袋中的双绞线电缆的芯线是夹套的。 通道填料具有延伸到每个通道填充口袋腿中的嵌入式屏蔽件(136),并且优选地由单个带制成。 或者,当两个磁带用于屏蔽时,第一磁带具有三个屏蔽支脚,一个支腿是折叠的支腿,并且第二磁带形成第四支腿,并且具有20至50%或至少1/16英寸的 其侧面被第一条带的折叠的腿部包围。