Galvanized cable tray has become a common cable tray in the market because of its wide application range and low cost. However, many people will question whether there is a need for jumper wires for Shandong galvanized bridge? The answer is needed.

山东电缆桥架

Shandong cable tray

镀锌桥架的材料为“电镀锌”，即化学清洗后将钢板放入电镀液(含氧化锌)中。通电后，锌分子电离并附着在钢板表面，形成镀锌桥。

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

跨接线原理：

Jumper principle:

跨接导线是连接到电气设备外壳上的线路，用于及时输出各种原因引起的不安全电荷或泄漏电流。由于镀锌电缆桥架由金属制成，具有一定的导电性，为了防止电流因泄漏或其他原因在镀锌电缆桥架上流动，通常在电缆桥架上跨接。

Jumper wire is a line connected to the enclosure of electrical equipment, which is used to output unsafe charge or leakage current caused by various reasons in time. Since the galvanized cable tray is made of metal and has certain conductivity, in order to prevent current from flowing on the galvanized cable tray due to leakage or other reasons, it is usually bridged on the cable tray.

跨接线注意事项：

Jumper precautions:

1.金属电缆桥架及其支架全长应至少与接地(PE)或中性(pen)干线连接2处;

1. The total length of metal cable tray and its support shall be connected with grounding (PE) or neutral (pen) trunk line at least 2 places;

2.非镀锌电缆桥架之间的连接板两端应采用铜芯地线连接，地线的至小允许截面积不小于4平方毫米;

2. Both ends of the connecting plate between non galvanized cable trays shall be connected with copper core ground wire, and the minimum allowable cross-sectional area of the ground wire shall not be less than 4mm2;

3.镀锌电缆桥架之间连接板的两端不得与接地线交叉，但连接板的两端不得少于2个连接固定螺栓，并带有防松螺母或防松垫圈。

3. The two ends of the connecting plate between galvanized cable trays shall not cross the grounding wire, but the two ends of the connecting plate shall not be less than 2 connecting and fixing bolts, and shall be equipped with anti loose nuts or anti loose washers.

以上就是关于山东镀锌桥架需不需要做跨接线的回答，答案是肯定的。原因就是为了防止电流泄露或者倒流，总之是为了安全起见。希望本文章能够对您有所帮助，如您还想了解更多关于桥架的知识，请持续关注我们网站!

The above is the answer about whether there is a need for jumper wire for Shandong galvanized bridge. The answer is yes. The reason is to prevent current leakage or backflow. In short, it is for safety. I hope this article can help you. If you want to know more about bridge, please continue to pay attention to our website!