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    • 7. 发明申请
    • METHOD IN THE MANUFACTURING OF AN INSULATED ELECTRIC HIGH VOLTAGE DC TERMINATION OR JOINT
    • 绝缘电高电压直流终端或接头的制造方法
    • US20150318675A1
    • 2015-11-05
    • US14649131
    • 2013-01-31
    • ABB TECHNOLOGY LTD
    • Carl-Olof OLSSONMarkus SALTZERAnders LINDGREN
    • H02G1/14
    • H02G1/14H01B13/0016H01B13/0026H01B13/0162H01B13/0165H02G1/12H02G1/16H02G15/003H02G15/068H02G15/18H02G15/188Y10T29/49119Y10T29/49123
    • A method in the manufacturing of an insulated electric high voltage DC termination or joint includes the steps of providing an insulated electric high voltage DC cable including an inner conductor; a polymer based insulation system, the polymer based insulation system comprising an insulation layer and a semiconducting layer; and an outer grounding layer; removing the grounding layer and the semiconducting layer in at least one end portion of the high voltage DC cable, thereby exposing the insulation layer in the at least one end portion of the high voltage DC cable; covering the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable by a cover impermeable to at least one substance present in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable in a non-homogenous distribution; subjecting the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable for a heat treatment procedure, while being covered by the cover, thereby equalizing the concentration of the at least one substance in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable; and removing the cover. Instead of using a temporary cover, which is later removed, as the impermeable barrier, a field grading adapter or joint body mounted at the end of the DC cable during the manufacturing of the high voltage DC termination or joint may be used.
    • 绝缘电高压直流端接或接头的制造方法包括提供包括内导体的绝缘电高压直流电缆的步骤; 基于聚合物的绝缘系统,所述基于聚合物的绝缘系统包括绝缘层和半导体层; 和外部接地层; 去除所述高压DC电缆的至少一个端部中的所述接地层和所述半导体层,从而暴露所述高压DC电缆的所述至少一个端部中的所述绝缘层; 在所述高压DC电缆的至少一个端部中覆盖所述基于聚合物的绝缘系统的绝缘层,所述绝缘层通过所述至少一个端部中的所述基于聚合物的绝缘系统的绝缘层中的至少一种物质不可渗透的盖 的高压直流电缆处于非均匀分布状态; 将聚合物基绝缘系统的绝缘层在高压DC电缆的至少一个端部进行热处理过程,同时被盖覆盖,从而使绝缘层中的至少一种物质的浓度均匀化 在高压DC电缆的至少一个端部中的基于聚合物的绝缘系统; 并拆下盖子。 可以使用在高压DC终端或接头的制造期间安装在DC电缆末端的现场分级适配器或接头体,而不是使用随后被去除的临时盖作为不可渗透的屏障。