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.

鍍鋅橋的材料為“電鍍鋅”，即將鋼板經(jīng)化學(xué)清洗后放入電鍍液(含氧化鋅)中，鋅分子電離附著在鋼板表面形成鍍鋅橋。

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.

接地跨接線用于橋架各段與導(dǎo)線管之間斷開(kāi)接口的電氣輔助連接，起到導(dǎo)通電位的作用，不正常通電。

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.

由于鍍鋅橋架屬于金屬材料，金屬材料具有一定的導(dǎo)電性，電纜橋架跨接器用于兩個(gè)橋架的連接，起到了漏電保護(hù)的作用。鍍鋅連接板可用作鍍鋅橋架之間的跨接導(dǎo)線，將橋架連接成一個(gè)整體。連接板兩端兩個(gè)連接螺栓加鍍鋅層橋架安裝。先安裝上層，再安裝下層。預(yù)留上下層距離，有利于后期電纜敷設(shè)和維護(hù)。也就是說(shuō)，當(dāng)有一座橋與其他橋沒(méi)有連接時(shí)，每座橋都要連接起來(lái)，以防發(fā)生泄漏，造成人身傷害。結(jié)尾，將有一根接地線把每一座橋接地。

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.

鍍鋅電纜橋架

Galvanized cable tray

鍍鋅橋架跨接導(dǎo)線要求：

Galvanized bridge jumper requirements:

1.當(dāng)沿橋架全長(zhǎng)敷設(shè)另一條接地干線時(shí)，橋架每段(包括非線性段)少有一點(diǎn)與接地干線可靠連接。

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.電纜橋架系統(tǒng)應(yīng)具有可靠的電氣連接和接地(僅適用于金屬橋架)。

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

3.電纜橋架系統(tǒng)允許形成接地干線回路時(shí)，應(yīng)符合下列要求。電纜橋架端部之間的連接電阻不大于0.00033歐姆，接地孔應(yīng)去除絕緣層。在1kV及以下中性點(diǎn)直接接地系統(tǒng)中，接收設(shè)備的接地與系統(tǒng)的中性線相連。安裝動(dòng)態(tài)切斷電源裝置時(shí)，電纜橋架沿坡長(zhǎng)方向的金屬截面積不得小于規(guī)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.