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1.发明授权公开(公告)号：US06395975B1
公开(公告)日：2002-05-28
申请号：US09347517
申请日：1999-07-02
IPC分类号： H01B900
CPC分类号： H01B9/0688 , H01B9/0611
摘要： Mass-impregnated electrical cable, particularly for carrying high voltage direct current, having an insulation in which, around the insulating layer impregnated with an insulating fluid, a containing layer is provided broadly includes at least one winding of a tape of a semiconducting elastomeric material, which exerts an effective action of containing the insulating fluid, while preventing formation of micro-cavities within the impregnated insulating layer. The material constituting the tape has high physical-chemical resistance to the degrading action of the components of the insulating fluid, both in the cold state and, in particular, at the operating temperature of the cable.
摘要翻译： 特别是用于承载高压直流电的质量浸渍的电缆具有绝缘层，其绝缘层周围浸渍有绝缘流体，包含层被广泛地包括半导体弹性体材料带的至少一个绕组， 其施加含有绝缘流体的有效作用，同时防止在浸渍的绝缘层内形成微腔。 构成带的材料在冷态下，特别是在电缆的工作温度下，对绝缘流体的组分的降解作用具有高的物理 - 化学性能。
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2.发明授权
公开(公告)号：US4774382A
公开(公告)日：1988-09-27
申请号：US74270
申请日：1987-07-16
CPC分类号： H01B7/282 , H01B3/16 , H01B7/2806
摘要： A direct current electric cable with a conductor, a semi-conductive screen around and contacting the conductor, a plurality of layers of insulation formed by tapes of insulating material around the semi-conductive screen, a further semi-conductive screen around the layers of insulation and a metal sheath around the further semi-conductive screen, the layers of insulation being impregnated with a non-migrating, insulation composition having a dropping point temperature at least 5.degree. C. above the maximum operating temperature of the cable and having an electronegative gas dissolved therein, the gas having a coefficient of diffusion in the composition in the range from 3.times.10.sup.-5 to 3.times.10.sup.-6 cm.sup.2 /sec at temperatures below the dropping point temperature of the composition.
摘要翻译： 具有导体的半导体屏蔽体和导体接触的直流电缆，由半导体屏蔽物周围的绝缘材料带形成的多层绝缘层，围绕绝缘层的另一半导体屏蔽层 以及在另外的半导电屏蔽周围的金属护套，绝缘层浸渍有非迁移性绝缘组合物，其滴点温度高于电缆的最大工作温度至少5℃并具有电负性气体 溶解在其中，在低于组合物的滴点温度的温度下，气体在组合物中的扩散系数在3×10 -5至3×10 -6 cm 2 / sec的范围内。
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3.发明授权
公开(公告)号：US4259281A
公开(公告)日：1981-03-31
申请号：US30726
申请日：1979-04-17
CPC分类号： H01B13/145 , C08J7/08 , C08J2323/06
摘要： A process for reducing micro-voids in cross-linked cable insulation without reducing the voltage breakdown strength thereof in which process the insulation, after cross-linking, is heated at a temperature in the range from about 120.degree. C. to about 150.degree. C. and under a pressure less than 10 mm. Hg for a period from about 8 hours to 48 hours. Also, a cable having such insulation which has micro-voids less than about 10.sup.2 per mm.sup.3 and a perforation gradient greater than the perforation gradient of a cable which has not been so treated.
摘要翻译： 一种降低交联电缆绝缘中的微孔的方法，而不降低其电压击穿强度，其中交联后的绝缘体在约120℃至约150℃的温度范围内加热 并且在小于10毫米的压力下。 Hg约8小时至48小时。 此外，具有这种绝缘的电缆，其具有小于每mm 3的大约102的微孔，并且穿孔梯度大于未被如此处理的电缆的穿孔梯度。
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公开(公告)号：US4698009A
公开(公告)日：1987-10-06
申请号：US864039
申请日：1986-05-16
摘要： A granulator for forming granules of cross-linkable plastic compounds in which a screw extruder extrudes the compound into the smaller diameter end of a funnel-shaped, annular conduit, the other end of the conduit facing a die with circular arrays of through-holes. The compound which passes through the through-holes is cut into granules by rotating blades having air nozzles which remove particles of the compound from the blades. The granules are received in a chamber from which they are removed pneumatically. Where the annular conduit meets the die, there are channels within and outside of the arrays of through-holes which lead to the outside of the granulator and which provide conduits for removal of compound which does not directly impinge on the entrances of the through-holes which are specially shaped to avoid accumulation of the compound between the through-holes.
摘要翻译： 一种用于形成可交联塑料化合物颗粒的造粒机，其中螺杆挤出机将化合物挤出到漏斗形环形导管的较小直径端，导管的另一端面对具有圆形阵列通孔的模具。 穿过通孔的化合物通过旋转具有从叶片除去化合物颗粒的空气喷嘴的叶片切成颗粒。 将颗粒接收在气室中从中除去的室中。 在环形导管与模具相接触的地方，在通孔阵列内和外部有通向造粒机外部的通道，其通道用于去除不直接撞击通孔入口的化合物 其特别地成形为避免化合物在通孔之间的积聚。
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5.发明授权Method and apparatus for replacing flammable oil in an electrical cable and cable so treated 失效在这样处理的电缆和电缆中更换易燃油的方法和装置
公开(公告)号：US4580002A
公开(公告)日：1986-04-01
申请号：US616319
申请日：1984-06-01
CPC分类号： H01B3/465
摘要： Method and apparatus for replacing flammable, insulating oil in an oil-filled electric cable by non-flammable, insulating oil in which the flammable oil is withdrawn at least from the cable oil duct under vacuum and with heating of the cable to its maximum operating temperature and thereafter, the flammable oil which was withdrawn is replaced by non-flammable oil. During operation of the cable, oil which flows out of the cable during heating of the cable is sent to a first reservoir, through a check valve and during subsequent cooling, such oil is replaced by non-flammable oil from a second reservoir containing non-flammable oil and connected to the cable duct by a check valve. Also, an oil-filled cable having its insulation impregnated with flammable, insulating oil or a mixture of such oil with non-flammable, insulating oil and having an oil duct filled with a non-flammable, insulating oil which is different from the flammable oil.
摘要翻译： 用不可燃的绝缘油替代充油电缆中的易燃绝缘油的方法和装置，其中在真空下至少从电缆油管抽出可燃油并且将电缆加热到其最大工作温度 其后取出的易燃油被不易燃的油代替。 在电缆操作期间，在加热电缆期间流出电缆的油被送到第一储存器，通过止回阀，并且在随后的冷却期间，这种油被来自第二储存器的不可燃油替代， 可燃油，并通过止回阀连接到电缆管道。 另外，一种充油电缆，其绝缘浸渍有易燃的绝缘油或这种油与不可燃绝缘油的混合物，并且具有填充有不可燃绝缘油的油管，其不同于易燃油 。
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6.发明授权Process for bringing ashore the ends of underwater cables at arrival landing points 失效在到达着陆点将水下电缆的末端上岸的过程
公开(公告)号：US4596492A
公开(公告)日：1986-06-24
申请号：US600360
申请日：1984-04-13
摘要： In laying an electric cable underwater, the finishing end of the cable is brought ashore by laying the cable end portion (from the cable laying ship) along a course parallel to the shore and as close to the shore as the ship can reach, then pulling the cable end to shore using a rope, pulling the cable end along the shore to the intended landing point, and then pulling the cable end in-land along the intended laying line until the whole cable is positioned along this line. Buoyancy devices are attached at intervals to the cable end portion for the duration of the landing process, to facilitate the sliding movement of the cable over the bottom.
摘要翻译： 在水下铺设电缆时，通过将电缆端部（电缆敷设船）沿着平行于岸边的岸线放置在电缆的末端，并且靠近岸边可以到达，然后拉 使用绳索将电缆端对岸，将电缆端沿着岸边拉到预期的着陆点，然后沿着预期的铺设线将电缆端部拉到内部，直到整个电缆沿着该线定位。 在着陆过程的持续期间，浮力装置以电缆端部的间隔连接，以便于电缆在底部上的滑动运动。
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公开(公告)号：US4867527A
公开(公告)日：1989-09-19
申请号：US172656
申请日：1988-03-24
CPC分类号： H01B9/005 , G02B6/4416
摘要： A cable for conveying both electrical power and optical signals, the cable having an electric conductor with insulation therearound, a sheath around the insulation, a one or two part protective layer around the insulation, a tube within the protective layer and at least one optical fiber loosely received in the tube. The protective layer can have armoring therearound and in this case, the radial thickness of the protective layer is from two to four times the diameter of the tube.
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公开(公告)号：US4698458A
公开(公告)日：1987-10-06
申请号：US860319
申请日：1986-04-15
IPC分类号： H02G15/103 , H02G15/184
CPC分类号： H02G15/103 , H02G15/184
摘要： A joint structure for interconnecting a pair of electrical cables each having a conductor surrounded by insulation which is surrounded by a layer of semi-conductive material. The mechanically interconnected conductor ends are surrounded by a two-part metal adaptor which has annular ribs at its ends which fit into annular grooves in the insulation of the cables. The adaptor is covered throughout its length with an electrical field modifier which is embedded in insulation covered by a layer of semi-conductive material which interconnects the semi-conductive layers of the cables.
摘要翻译： PCT No.PCT / EP85 / 00500 Sec。 一九八六年四月十五日 102（e）日期1986年4月15日PCT提交1985年9月26日PCT公布。 出版物WO86 / 02210 日期为1986年4月10日。一种用于互连一对电缆的连接结构，每对电缆具有被绝缘体包围的导体，该导体被半导电材料层包围。 机械互连的导体端被两部分的金属适配器包围，金属适配器在其端部具有环形肋，其装配在电缆绝缘体中的环形槽中。 适配器在其整个长度上被覆盖有电场调节器，该电场调节器嵌入绝缘体中，该绝缘体被互连电缆的半导体层的半导体材料层覆盖。
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公开(公告)号：US4642415A
公开(公告)日：1987-02-10
申请号：US809156
申请日：1985-12-16
摘要： A joint between a pair of electrical cables of different types, such as an oil filled cable and a cable with extruded insulation. Both cable ends have tapered insulation and stepped layers outwardly of the insulation and the conductor of one cable is mechanically and electrically connected to the conductor of the other cable by a rod surrounded by a body of insulation. Portions of the insulation at opposite ends of the body and the tapered insulations are respectively covered by insulation applied thereto during installation of the joint. The tapered insulation of the oil filled cable is enclosed by a housing in fluid tight engagement with the body and the sheath of the oil filled cable and filled with the oil of the oil filled cable. The insulation surrounding a portion of the body and the tapered insulation of the cable with extruded insulation is adhesively bonded to such portion of the body.
摘要翻译： 一种不同类型的电缆之间的接头，例如充油电缆和具有挤压绝缘的电缆。 两个电缆端部均具有锥形绝缘层和绝缘体外侧的阶梯层，并且一根电缆的导体通过被绝缘体围绕的杆机械地和电连接到另一根电缆的导体。 主体和锥形绝缘体相对端的绝缘部分在安装接头期间分别被施加到其上的绝缘层覆盖。 充油电缆的锥形绝缘体由壳体封闭，与壳体和充油电缆的护套流体紧密接合，并填充充油电缆的油。 围绕身体的一部分的绝缘体和具有挤出绝缘体的电缆的锥形绝缘体粘合到身体的这一部分上。
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公开(公告)号：US4417093A
公开(公告)日：1983-11-22
申请号：US327353
申请日：1981-12-04
申请人： Elio Occhini , Gianmario Lanfranconi , Piero Metra
发明人： Elio Occhini , Gianmario Lanfranconi , Piero Metra
CPC分类号： H01B9/0611 , H01B3/20 , H01B3/52 , H01B9/06
摘要： A direct current, electric, submarine cable which may be used in long lengths and at great depths and which has improved voltage breakdown characteristics with respect to voids which form in the insulation. The cable has a conductor surrounded by an inner semi-conductive screen which is surrounded by cellulose paper tape insulation which is surrounded by an outer semi-conductive screen which is surrounded by a metal sheath. The paper tape is impregnated with a compound comprising a viscous hydrocarbon oil containing a substance having polar groups, the amount of the substance being sufficient to make the volume resistivity of the compound 100 times lower than the volume resistivity of the tape with the compound therein.
摘要翻译： 直流电动海底电缆，其长度可长，深度大，并且相对于在绝缘体中形成的空隙具有改善的电压击穿特性。 电缆具有被内部半导电屏幕包围的导体，该内部半导体屏幕被由纤维素纸带绝缘体包围，该绝缘体由被金属护套包围的外部半导电屏幕包围。 纸带被含有含有具有极性基团的物质的粘性烃油的化合物浸渍，该物质的量足以使化合物的体积电阻率低于其中化合物的带的体积电阻率的100倍。
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