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

镀锌桥的材料为“电镀锌”，即将钢板经化学清洗后放入电镀液(含氧化锌)中，锌分子电离附着在钢板表面形成镀锌桥。

The material of the galvanized bridge is "electro galvanizing", that is, the steel plate is put into the electroplating solution (including zinc oxide) after chemical cleaning, and the zinc molecules are ionized and attached to the surface of the steel plate to form a galvanized bridge.

接地跨接线用于桥架各段与导线管之间断开接口的电气辅助连接，起到导通电位的作用，不正常通电。

The grounding jumper is used for the electrical auxiliary connection of the disconnected interface between each section of the bridge and the conduit, which plays the role of on potential and is not normally energized.

由于镀锌桥架属于金属材料，金属材料具有一定的导电性，电缆桥架跨接器用于两个桥架的连接，起到了漏电保护的作用。镀锌连接板可用作镀锌桥架之间的跨接导线，将桥架连接成一个整体。连接板两端两个连接螺栓加镀锌层桥架安装。先安装上层，再安装下层。预留上下层距离，有利于后期电缆敷设和维护。也就是说，当有一座桥与其他桥没有连接时，每座桥都要连接起来，以防发生泄漏，造成人身伤害。结尾，将有一根接地线把每一座桥接地。

As the galvanized bridge is a metal material, which has certain conductivity, the cable bridge jumper is used for the connection of two bridges to play the role of leakage protection. Galvanized connecting plate can be used as jumper wire between galvanized bridges to connect the bridges as a whole. Two connecting bolts at both ends of the connecting plate are installed with galvanized bridge. Install the upper layer first and then the lower layer. Reserve the distance between the upper and lower layers, which is conducive to cable laying and maintenance in the later stage. In other words, when one bridge is not connected with other bridges, each bridge shall be connected to prevent leakage and personal injury. At the end, there will be a ground wire to ground each bridge.

镀锌电缆桥架

Galvanized cable tray

镀锌桥架跨接导线要求：

Galvanized bridge jumper requirements:

1.当沿桥架全长敷设另一条接地干线时，桥架每段(包括非线性段)至少有一点与接地干线可靠连接。

1. When another grounding main line is laid along the whole length of the bridge, at least one point of each section of the bridge (including non-linear section) is reliably connected with the grounding main line.

2.电缆桥架系统应具有可靠的电气连接和接地(仅适用于金属桥架)。

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

3.电缆桥架系统允许形成接地干线回路时，应符合下列要求。电缆桥架端部之间的连接电阻不大于0.00033欧姆，接地孔应去除绝缘层。在1kV及以下中性点直接接地系统中，接收设备的接地与系统的中性线相连。安装动态切断电源装置时，电缆桥架沿坡长方向的金属截面积不得小于规定值。

3. When the cable tray system allows the formation of grounding trunk circuit, it shall meet the following requirements. The connection resistance between the ends of the cable tray shall not be greater than 0.00033 ohm, and the insulating layer shall be removed from the grounding hole. In 1kV and below neutral point direct grounding system, the grounding of receiving equipment is connected with the neutral line of the system. When installing the dynamic power cut-off device, the metal cross-sectional area of the cable tray along the slope length direction shall not be less than the specified value.