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1. 发明专利

JPS59105537A Detecting method for partial discharge in crosslinked- polyethylene insulated power cable system 失效
标题翻译：交联聚乙烯绝缘电力电缆系统部分放电检测方法
公开(公告)号：JPS59105537A
公开(公告)日：1984-06-18
申请号：JP21521282
申请日：1982-12-08
申请人： Hitachi Cable Ltd , Ube Ind Ltd
发明人： WATANABE YASUAKI , IKEDA TADAYOSHI , NAGANO HIROO , ANDOU YORIO , ENDOU TAKESHI , KINUGASA JIYUN , TAKASHIMA HIDEAKI , MIKAMI AKIHIRO
IPC分类号： G01M99/00 , G01M3/22 , G01R31/12
CPC分类号： G01M3/221
摘要： PURPOSE:To detect the partial discharge of an insulating layer without fail before the occurrence of the breakdown of insulation property and thereby to prevent the outbreak of a large hazard, by detecting H2, CO and CO2 produced at the time of the partial discharge from a crosslinked-polyethylene insulated power cable system in which air or gas of SF6 or the like is filled up in a sheath. CONSTITUTION:In a power cable prepared by providing a cable conductor 1 with an internal shielding layer 2, a crosslinked-polyethylene insulating layer 3, an electrostatic shielding body 4 formed by winding a semi-conductive tape with butt gaps 4' provided, a tin-plated copper wire 5 (grounded), a cotton-tape winding layer 6 and a metal sheath 7 in this sequence, air or gas of N2, SF6 or the like is filled up in a gap 8 inside the sheath 7. The gas in this gap 8 is taken out and analyzed by the gas chromatography using an activator column. When one or more of H2, CO and CO2 in the gas is detected, it is determined that the layer 3 is decomposed due to partial discharge and thereby said three gases are produced inside a cable core. The partial discharge can be detected with high sensitivity in this way.
摘要翻译：目的：在发生绝缘性破坏之前，先检查绝缘层的局部放电，从而防止爆发危险性大，通过检测局部放电时产生的H2，CO和CO2 交联聚乙烯绝缘电力电缆系统，其中SF6等的空气或气体填充在护套中。构成：在通过为电缆导体1提供内部屏蔽层2制备的电力电缆中，交联聚乙烯绝缘层3，静电屏蔽体4，该静电屏蔽体4通过卷绕带有对接间隙4'的半导体带形成，电镀铜线5（接地），棉带缠绕层6和金属护套7，将N 2，SF 6等的空气或气体填充在护套7内部的间隙8中。通过使用活化剂柱的气相色谱法取出该间隙8并进行分析。当检测到气体中的H 2，CO和CO 2中的一种或多种时，确定层3由于局部放电而分解，从而在电缆芯内产生三种气体。以这种方式可以高灵敏度地检测局部放电。

2. 发明专利

JPS59150575A Coating method for metal surface 失效
标题翻译：金属表面涂层方法
公开(公告)号：JPS59150575A
公开(公告)日：1984-08-28
申请号：JP2595583
申请日：1983-02-17
申请人： Nippon Steel Corp , Ube Ind Ltd
发明人： TAKASHIMA HIDEAKI , OOTSUKI FUYUHIKO , ISHIDA MASAMI , KARIYAZONO YOSHIHISA , MORITA SHIYUUJI , URAWA SHIYOUTAROU
IPC分类号： B05D7/14 , B05D1/36 , B05D3/02 , B05D7/24
摘要： PURPOSE: To obtain a coating layer suited to a steel pipe for carrying curde oil or the like, etc., by forming the layer of specified denatured polyethylene on the primer layer of thermosetting epoxy resin and then further forming a polyethylene layer thereon.
CONSTITUTION: After thermosetting epoxy resin is applied onto a preheated metal surface to form a primer layer, denatured polyethylene of a melt index below 3g/10min obtd. by melt kneading polyethylene and unsaturated carboxylic acid or its anhydride as a denaturing agent in the presence of a radical reaction initiator is fused to the surface of said primer layer to form a denatured polyethylene layer. Thereafter, polyethylene is fused to the surface of said denatured polyethylene layer to form the coating layer of polyethylene. A preheating temp. for said metal surface is pref. 100W300°C.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在热固性环氧树脂的底漆层上形成特定的变性聚乙烯层，然后在其上进一步形成聚乙烯层，获得适合于用于承载姜油等的钢管的涂层。构成：将热固性环氧树脂涂覆在预热的金属表面上以形成底漆层，熔融指数低于3g / 10min的变性聚乙烯。通过在自由基反应引发剂的存在下将聚乙烯和不饱和羧酸或其酸酐作为变性剂熔融捏合而与所述底漆层的表面融合，形成变性聚乙烯层。此后，将聚乙烯熔合到所述变性聚乙烯层的表面以形成聚乙烯涂层。预热温度对于所述金属表面是优先的。 100-300摄氏度

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