今天给大家带来关于UL 2238标准第九篇中文解读——接地和非载流金属部件的一些描述解读， 接地部件的材质要求等等。

9 Grounding and Dead-Metal Parts

9.1 The following grounding parts shall be copper or a copper-base alloy:
        以下接地部件应为铜或铜基合金：

1. A grounding pin or contact, and

           接地针或触点， 以及

2. Parts that are in the grounding path in a male cable fitting, multi-outlet fitting, splitter, feed-through connector, or female cable fitting.

      凸型电缆接头， 多出口接头， 分配器， 直通连接器或凹型电缆接头中位于接地路径中的零件。
Exception: Fastening devices, such as coupling nuts or assemblies used to connect shielded cables, as part of the grounding path may be composed of other materials, such as zinc, so long as the interface resistance is below 25 m.
    只要接地电阻低于 25m Ω ， 作为接地路径一部分的紧固装置（例如耦合螺母或用于连接屏蔽电缆的组件） 可以由其他材料（例如锌） 组成。

9.2 Steel or its equivalent is acceptable for a rivet, bolt, or clamp that is used to secure parts in the grounding path if the rivet, bolt, or clamp is not a conductor in the grounding path.
     如果铆钉， 螺栓或固定夹不是接地路径中的导体， 则用于将零件固定在接地路径中的铆钉， 螺栓或固定夹可接受钢或其等效物。
 
9.3 A copper-base alloy rivet that is used to secure parts in the grounding path, or that forms a part of the grounding path, shall not contain less than 80% copper.
    用于固定接地路径中的零件或形成接地路径一部分的铜基合金铆钉， 其铜含量不得少于80％。
 
9.4 The requirements in 9.1 - 9.3 apply to the entire grounding-conductor path between the grounding pin or contact and the grounding terminal.
    9.1 – 9.3中的要求适用于接地插针或触点与接地端子之间的整个接地导体路径。
 
9.5 Grounding parts and dead-metal parts shall be secured in place so that the spacings are not reduced below those specified in 12.1.
    接地部件和死金属部件应固定在适当的位置， 以使间距不会减小到低于12.1中指定的间距。


9.6 A dead-metal part of a grounding device shall be conductively connected to the grounding-conductor path by means of the device unless the dead-metal part is isolated from current-carrying parts and wiring other than a complete flexible cord. A flexible cord is not complete if two insulated conductors of a parallel-type cord are split apart or where the jacket of a jacketed-type cord is removed from the insulated conductors.
  除非接地装置与完整的软线以外的载流部件和接线隔离， 否则接地装置的接地金属部件应通过接地装置与接地导体路径导电连接。 如果将并行型软线的两个绝缘导体分开或从绝缘型导体上除去护套型软线的护套， 则软线不完整。
 
9.7 A dead-metal part of a device for use in a non-grounding application where there is no provision for grounding the dead-metal part shall be insulated from live parts and wiring other than a complete flexible cord so that stray strands, malfunction of wiring terminals, or malfunction of wiring does not energize accessible dead-metal parts. A flexible cord is not complete if two insulated conductors of a parallel-type cord are split apart or where the jacket of a jacketed-type cord is removed from the insulated conductors.
 在没有接地装置的非接地应用中使用的设备的死金属部件应与带电部件和除完整的软线以外的布线绝缘， 以确保散线， 布线故障端子或接线故障不会使可触及的死金属零件通电。 如果将并联型电缆的两个绝缘导体分开或从绝缘导体上除去护套型电缆的护套， 则软线是不完整的。
 
9.8 For a grounding device, the pin that is to be used for grounding shall be longer than the other pins. The male cable fitting shall be constructed such that, when it is inserted into its corresponding female cable fitting, contact between the grounding pin and the corresponding grounding terminal contact will be made before contact between the other pins and their corresponding contacts.
 对于接地设备， 用于接地的引脚应比其他引脚更长。 凸形电缆接头的构造应确保在将其插入相应的凹形电缆接头中时， 在其他引脚与它们对应的触点之间接触之前， 应先进行接地插脚和相应的接地端子触点之间的接触。

以上就是UL 2238对于接地和非载流金属部件的解读，德立弗检测拥有UL 2238的全套测试能力，是UL授权的UL 2238 TPTDP实验室，欢迎您的咨询！