Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
A connecting apparatus includes a connecting conductor for connecting a supporting insulator supporting an overhead transmission line and a lightning arrester through a disconnecting member.
一种连接设备包括一个连接导体，它经由一个断开件，连接一个承载架空传输线的承载绝缘器以及一个避雷器。
Sports related industry includes Sports advertising industry, Sports apparatus industry, Sports insurance industry, Sports tourist industry, Sports supporting and Sports broadcasting industry, etc.
后者主要包括体育器材业、体育服装业、体育赞助业、体育广告业、体育保险业、体育旅游业与体育传媒业等；
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