Cable tray is a product for protecting cables, which can be erected independently or laid on various buildings (structures) and pipe rack supports, reflecting the characteristics of simple structure, beautiful appearance, flexible configuration, convenient maintenance, etc.

镀锌桥架的材质就是“电镀锌”，是将钢板经过化学清洗后放置入电镀液中（内含氧化锌），通电后锌分子被电离出来被附着在钢板的表面形成镀锌桥架。

The material of the galvanized bridge is "electro galvanizing", which involves placing the steel plate into an electroplating solution (containing zinc oxide) after chemical cleaning. After being energized, zinc molecules are ionized and attached to the surface of the steel plate to form a galvanized bridge.

接地跨接线是用在比如桥架各节段电线管之间的断接口电气辅助联通用的起传导电位的作用，正常时不通过电流。

The grounding jumper wire is used for electrical auxiliary connection of the disconnection interface between various sections of the cable duct of the bridge, which serves as a conductive potential and does not pass through current normally.

因为镀锌桥架属于金属材质，金属材质都带有的导电性，电缆桥架跨接线用于两节桥架连接处,它起到漏电保护的作用。 镀锌桥架之间可利用镀锌连接板作为跨接线,把桥架连成一体在连接板两端的两只连接螺栓上加镀锌分层桥架安装,先安装上层,后安装下层,上下层之间距离要留有余量,有利于后期电缆敷设和检修。即将各个桥架连接起来，防止漏电时有桥架不与其他桥架相连而导致漏电造成人身危害，终会有接地线将各段桥架连接至大地。

Because the galvanized cable tray is made of metal materials with conductivity, the jumper wire of cable tray is used at the connection of two cable trays to protect against leakage. Galvanized connection plates can be used as jumper wires between galvanized bridge trays, connecting the bridge trays into a whole. Two connecting bolts at both ends of the connection plate are added with galvanized layered bridge trays for installation. The upper layer is installed first, and then the lower layer. The distance between the upper and lower layers should be left with margin, which is conducive to cable laying and maintenance in the later stage. Connect all cable trays to prevent personal harm caused by leakage caused by the cable tray not being connected to other cable trays. Eventually, a grounding wire will connect each section of the cable tray to the ground.

镀锌桥架跨接线要求：

Galvanized bridge jumper requirements:

沿电缆桥架全长另敷设接地干线时，每段（包含非直线段）电缆桥架应起码有一点与接地干线可靠连接。

When another grounding main line is laid along the whole length of cable tray, at least one point of each cable tray (including non straight line section) shall be reliably connected with the grounding main line.

电缆桥架系统应具有可靠的电气连接并接地（只对金属桥架）。

The cable tray system shall have reliable electrical connection and grounding (only for metal tray).

当允许利用电缆桥架系统构成接地干线回路时应符合以下要求。电缆桥架端部之间连接电阻应不大于0.00033欧姆，接地孔应绝缘涂层。在1KV及以下中性点直接接地系统中，受电设备的接地与系统中性线接地相连。装有处动切断供电装轩时，电缆桥架的级长方向金属横截面积应不小于规定值。

When it is allowed to use the cable tray system to form the grounding trunk circuit, the following requirements shall be met. The connection resistance between the ends of cable tray shall not be greater than 0.00033 Ω, and the grounding hole shall be insulated. In the 1KV and below neutral point direct earthing system, the grounding of the receiving equipment is connected with the system neutral line grounding. When installing the automatic cut-off power supply device, the metal cross sectional area of the cable tray in the direction of the grade length shall not be less than the specified value.

本文由 山东电缆桥架友情奉献.更多有关的知识请点击: //www.comprepyme.com真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

This article is contributed by cable tray in Shandong Province. For more information, please click: //www.comprepyme.com Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned