What factors will affect the quality of cable tray? For example, galvanized bridge, the most influential is the thickness of the bridge raw material itself, the thickness is different, the strength of the bridge is different, if too thin, very simple bridge will be weighted, gravity bending, resulting in all beautiful deterioration, even if it may affect the installation construction, eventually lead to the project can not be verified.

让质量牢靠电缆桥架才会质量一流，质量关于桥架而言，重要性几乎显而易见，想喷塑防火型电缆桥架，不仅仅厚度有影响，喷塑的质量、不要紧都对产品自身有较大的影响，即便不是桥架职业，其他任何职业都相同，质量就是产品的生命线，守住质量，才干守得住企业发展的根基，切不可为了短期利益，用劣质产品套住客户。

The quality of the cable bridge will be first-class, quality of the bridge, the importance of almost obvious, want to spray fire-proof cable bridge, not only the thickness of the impact, spray quality, not matter on the product itself have a greater impact, even if not the bridge occupation, any other occupation is the same, quality Is the lifeline of the product, to maintain quality, ability to maintain the foundation of enterprise development, must not for short-term interests, with inferior products to cover customers.

电缆桥架在一些情况下是需求用到接地线的，那么在什么情况下才会用到呢？假如需求用到接地线，又对接地线有什么要求呢？

In some cases, the cable bridge is required to use the ground wire, then in what circumstances will it be used? If the demand is grounded, what are the requirements for grounding?

首要，在什么环境下用到。比如说，在通电线缆较多，负载量较大，简单导电或发生静电，或许有可能人会接触到的地方，都要求运用接地线，吧可能存在的静电等接地。

First and foremost, under what circumstances. For example, in places where there are more wires and cables, more loads, simple conduction or static electricity, which may be touched by people, grounding wires are required, such as static electricity which may exist.

那么对接地线有什么要求吗？之前咱们介绍过一篇金属桥架的接地线截面面积要求，里边有说过，若金属电缆桥架垂直敷设在电气竖井内，竖井内设有一条垂直的铜排(或镀锌扁钢)作为PE干线，此时各段电缆桥架仅需作等电位联合，因为此时用于电气的联合线只传导电位，不传送电流或只传导少部分的电流，所以电缆桥架接地保护线截面可按4.1需求进行选择。

So what are the requirements for grounding? Before we introduced a section area requirement for the ground wire of a metal bridge, it was said that if the metal cable bridge is laid vertically in an electrical shaft and a vertical copper bar (or galvanized flat steel) is installed in the shaft as the PE trunk line, then the cable bridge only needs to be equipotentially combined because it is used for electrical safety at this time. The combined line conducts only potential, no current or only a small part of the current, so the cable bridge grounding protection line section can be selected according to 4.1 requirements.

(济南航丰实业有限公司,对山东电缆桥架感兴趣的朋友可以关注我们http://www.sdhangfeng.com，敬请期待更多精彩内容

(Jinan Hanfeng Industry Co., Ltd., friends interested in Shandong cable bridge can pay attention to our http://www.sdhangfeng.com, please look forward to more exciting content