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公开(公告)号：US07488892B2
公开(公告)日：2009-02-10
申请号：US10518468
申请日：2003-06-05
申请人： Sergio Belli , Fabrizio Donazzi , Alberto Bareggi , Cesare Bisleri , Carlo Marin
发明人： Sergio Belli , Fabrizio Donazzi , Alberto Bareggi , Cesare Bisleri , Carlo Marin
IPC分类号： H01B9/02
摘要： A cable for use in a predetermined voltage class, has a conductor; an insulating layer surrounding the conductor, the insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage in said predetermined voltage class; and a protective element around the conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer. The insulating layer thickness and the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. A method for designing a cable is also disclosed.
摘要翻译： 用于预定电压等级的电缆具有导体; 围绕所述导体的绝缘层，所述绝缘层的厚度被选择为当所述电缆在所述预定电压等级中的标称电压下操作时提供预定的电应力; 以及围绕导体的保护元件，其具有被选择用于提供预定抗冲击性能的厚度和机械性能，所述保护元件具有至少一个发泡聚合物层。 选择绝缘层厚度和保护元件厚度，以最大限度地减少总体电缆重量，同时防止在50J能量冲击时可检测的绝缘层损坏。 还公开了一种用于设计电缆的方法。
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公开(公告)号：US20060076155A1
公开(公告)日：2006-04-13
申请号：US10518468
申请日：2003-06-05
IPC分类号： H01B7/00
摘要： A cable for use in a predetermined voltage class, has a conductor; an insulating layer surrounding the conductor, the insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage in said predetermined voltage class; and a protective element around the conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer. The insulating layer thickness and the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. A method for designing a cable is also disclosed.
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公开(公告)号：US20070051450A1
公开(公告)日：2007-03-08
申请号：US10565299
申请日：2003-12-18
申请人： Fabrizio Donazzi , Sergio Belli , Paolo Maioli , Alberto Bareggi
发明人： Fabrizio Donazzi , Sergio Belli , Paolo Maioli , Alberto Bareggi
IPC分类号： H01B13/26
CPC分类号： H01B13/2626 , H01B7/189 , H01B13/00 , H01B13/14 , H01B13/262
摘要： A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a radially outer position with respect to the conductor; c) cooling the extruded insulating layer at a temperature not higher than 70° C.; and d) forming a circumferentially closed metallic screen around the extruded insulating layer. The process is carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the screen forming step is inversely proportional to the feeding speed of the conductor.
摘要翻译： 电缆制造工艺。 特别地，该方法包括以下步骤：a）以预定的进料速度供给导体; b）在相对于导体的径向外部位置挤出热塑性绝缘层; c）在不高于70℃的温度下冷却挤出的绝缘层; 以及d）在所述挤压绝缘层周围形成周向封闭的金属屏蔽。 该过程是连续进行的，即在冷却步骤结束和丝网形成步骤开始之间发生的时间与导体的进给速度成反比。
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公开(公告)号：US07459635B2
公开(公告)日：2008-12-02
申请号：US10565783
申请日：2003-07-25
IPC分类号： H01B7/00
CPC分类号： H01B13/2626 , H01B7/189 , H01B13/00 , H01B13/14 , H01B13/262
摘要： A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a position radially external to the conductor; c) cooling the extruded insulating layer; and d) forming a circumferentially closed metal shield around the extruded insulating layer. The process may be carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the shield forming step is inversely proportional to the feeding speed of the conductor.
摘要翻译： 电缆制造工艺。 特别地，该方法包括以下步骤：a）以预定的进给速度馈送导体; b）在导体的径向外部的位置挤出热塑性绝缘层; c）冷却挤压绝缘层; 以及d）围绕挤出的绝缘层形成周向封闭的金属屏蔽。 该过程可以连续进行，即在冷却步骤的结束和屏蔽形成步骤的开始之间发生的时间与导体的进给速度成反比。
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公开(公告)号：US20070181333A1
公开(公告)日：2007-08-09
申请号：US10565783
申请日：2003-07-25
IPC分类号： H01B9/02
CPC分类号： H01B13/2626 , H01B7/189 , H01B13/00 , H01B13/14 , H01B13/262
摘要： A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a position radially external to the conductor; c) cooling the extruded insulating layer; and d) forming a circumferentially closed metal shield around the extruded insulating layer. The process according to the invention is carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the shield forming step is inversely proportional to the feeding speed of the conductor.
摘要翻译： 电缆制造工艺。 特别地，该方法包括以下步骤：a）以预定的进料速度供给导体; b）在导体的径向外部的位置挤出热塑性绝缘层; c）冷却挤压绝缘层; 以及d）围绕挤出的绝缘层形成周向封闭的金属屏蔽。 根据本发明的方法是连续执行的，即在冷却步骤结束和屏蔽形成步骤开始之间发生的时间与导体的进给速度成反比。
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6.发明授权公开(公告)号：US07622669B2
公开(公告)日：2009-11-24
申请号：US10565938
申请日：2003-07-30
申请人： Fabrizio Donazzi , Sergio Belli , Paolo Maioli , Enrico Borghi
发明人： Fabrizio Donazzi , Sergio Belli , Paolo Maioli , Enrico Borghi
IPC分类号： H01B11/06
摘要： A method for shielding the magnetic field generated by an electrical power transmission line and an electrical power transmission line so shielded. The electrical power transmission line has at least one electrical cable and at least one shielding element made of ferromagnetic material arranged in a radially outer position with respect to the at least one cable which shielding element has a base and a cover. The line also has a supporting element coupled to at least the base of the shielding element. In particular, the ferromagnetic material of the shielding element is selected from grain oriented silicon steel, preferably containing a silicon content between about 1% and about 5%, non-grain oriented silicon steel, Permalloyè and Supermalloyè.
摘要翻译： 一种用于屏蔽由电力传输线和被屏蔽的电力传输线产生的磁场的方法。 电力传输线具有至少一根电缆和至少一个由铁磁材料制成的屏蔽元件，该屏蔽元件相对于至少一根电缆布置在径向外部位置，该屏蔽元件具有基座和盖。 该线还具有耦合到至少屏蔽元件的基部的支撑元件。 特别地，屏蔽元件的铁磁材料选自晶粒取向硅钢，优选含有约1％至约5％的非晶取向硅钢，Permalloyè和Supermalloyè之间的硅含量。
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7.发明申请公开(公告)号：US20070144754A1
公开(公告)日：2007-06-28
申请号：US10565938
申请日：2003-07-30
申请人： Fabrizio Donazzi , Sergio Belli , Paolo Malioli , Enrico Borghi
发明人： Fabrizio Donazzi , Sergio Belli , Paolo Malioli , Enrico Borghi
IPC分类号： H01B11/02
摘要： A method for shielding the magnetic field generated by an electrical power transmission line and an electrical power transmission line so shielded. The electrical power transmission line has at least one electrical cable and at least one shielding element made of ferromagnetic material arranged in a radially outer position with respect to the at least one cable which shielding element has a base and a cover. The line also has a supporting element coupled to at least the base of the shielding element. In particular, the ferromagnetic material of the shielding element is selected from grain oriented silicon steel, preferably containing a silicon content between about 1% and about 5%, non-grain oriented silicon steel, Permalloyè and Supermalloyè.
摘要翻译： 一种用于屏蔽由电力传输线和被屏蔽的电力传输线产生的磁场的方法。 电力传输线具有至少一根电缆和由铁磁材料制成的至少一个屏蔽元件，该屏蔽元件相对于至少一根电缆布置在径向外部位置，该屏蔽元件具有基座和盖。 该线还具有耦合到至少屏蔽元件的基部的支撑元件。 特别地，屏蔽元件的铁磁材料选自晶粒取向硅钢，优选含有约1％至约5％的非晶取向硅钢，Permalloyè和Supermalloyè之间的硅含量。
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公开(公告)号：US08772638B2
公开(公告)日：2014-07-08
申请号：US12542259
申请日：2009-08-17
申请人： Alberto Lumachi , Paolo Veggetti , Luca Giorgio De Rai , Franck O'Neil , Alberto Bareggi , Marco Frigerio , Sergio Belli
发明人： Alberto Lumachi , Paolo Veggetti , Luca Giorgio De Rai , Franck O'Neil , Alberto Bareggi , Marco Frigerio , Sergio Belli
IPC分类号： H01B7/18
CPC分类号： H01B7/2813 , H01B3/30 , H01B13/14
摘要： Process for manufacturing a cable comprising the following steps:(a) conveying at least one conductor to an extruder apparatus;(b) extruding an insulating coating layer radially external to said at least one conductor; (c) longitudinally folding a metal tape around said extruded insulating coating layer, said metal tape bearing at least one adhesive coating layer in a radially external position; (e) extruding at least one continuous coating layer comprising at least one polyamide or a copolymer thereof around and in contact with said folded metal tape; wherein the step (e) is carried out at a draw down ratio (DDR) not higher than 2.5, preferably of from 1.2 to 2.0.
摘要翻译： 制造电缆的方法，包括以下步骤：（a）将至少一个导体输送到挤出机装置;（b）在所述至少一个导体的径向外部挤出绝缘涂层; （c）在所述挤出的绝缘涂层周围纵向折叠金属带，所述金属带在径向外部位置承载至少一个粘合剂涂层; （e）将包含至少一种聚酰胺或其共聚物的至少一个连续涂层挤压在所述折叠的金属带周围并与之接触; 其中步骤（e）以不高于2.5，优选1.2-2.0的拉伸比（DDR）进行。
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公开(公告)号：US20090206509A1
公开(公告)日：2009-08-20
申请号：US11918872
申请日：2005-04-27
CPC分类号： B29C47/28 , B29C47/0023 , B29C47/92 , B29C2947/92019 , B29C2947/92209 , B29C2947/92409 , B29C2947/92466 , B29C2947/92514 , B29C2947/92571 , B29C2947/9258 , B29C2947/926 , B29C2947/92704 , B29C2947/92904 , B29C2947/92933 , B29C2947/92952 , B29L2031/3462
摘要： A method for manufacturing a cable, the cable including at least one transmissive element and at least one coating layer made of a polymeric material and arranged at a radially outer position with respect to the transmissive element. The method includes the steps of: a) feeding the polymeric material to an extrusion apparatus including an extrusion head, the extrusion head including a male die; a female die coaxially arranged with respect to the male die; a conveying channel, at least one portion of which is defined between the male die and the female die; and b) controlling a cross-sectional area of the at least one portion of the conveying channel in response to a detected quantity, the quantity being caused to vary during the manufacturing of the cable as a function of the actual extrusion speed. An extrusion apparatus for carrying out the process.
摘要翻译： 一种用于制造电缆的方法，所述电缆包括至少一个透射元件和至少一个由聚合物材料制成并且相对于透射元件的径向外部位置布置的涂层。 该方法包括以下步骤：a）将聚合物材料输送到包括挤压头的挤压设备中，该挤压头包括一个阳模; 相对于阳模同轴布置的阴模; 输送通道，其至少一部分限定在阳模和阴模之间; 以及b）响应于检测到的量控制所述输送通道的至少一部分的横截面面积，所述量在所述电缆的制造期间作为实际挤出速度的函数而发生变化。 用于执行该过程的挤出装置。
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公开(公告)号：US07514633B2
公开(公告)日：2009-04-07
申请号：US10581186
申请日：2003-12-03
IPC分类号： H01B7/02
CPC分类号： H01B3/20 , H01B7/185 , H01B7/1875 , H01B7/189
摘要： A cable for use in a predetermined voltage class includes at least one conductor; at least one extruded insulating layer surrounding the conductor, the insulating layer being made from a non-crosslinked insulating material having at least one thermoplastic polymer and at least one dielectric liquid, the insulating layer having a thickness such as to provide a voltage gradient on the outer surface of the cable insulating layer not smaller than 1.0 kV/mm; and a protective element around the extruded insulating layer having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer, the thickness being sufficient to prevent detectable insulating layer damage upon impact of at least 25 J energy. The insulating layer thickness and the protective element thickness can be selected in combination to minimize the overall cable weight while preventing detectable insulating layer damage upon impact of at least 25 J energy.
摘要翻译： 用于预定电压等级的电缆包括至少一个导体; 围绕所述导体的至少一个挤压绝缘层，所述绝缘层由具有至少一种热塑性聚合物和至少一种介电液体的非交联绝缘材料制成，所述绝缘层具有厚度以在所述绝缘层上提供电压梯度 电缆绝缘层的外表面不小于1.0kV / mm; 以及围绕所述挤压绝缘层的保护元件，其具有被选择为提供预定抗冲击能力的厚度和机械性能，所述保护元件具有至少一个发泡聚合物层，该厚度足以防止至少在冲击时可检测的绝缘层损伤 25 J能量。 可以组合选择绝缘层厚度和保护元件厚度，以使总体电缆重量最小化，同时防止在至少25J能量冲击时可检测的绝缘层损伤。
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