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.

鍍鋅橋架的材質(zhì)就是“電鍍鋅”，是將鋼板經(jīng)過(guò)化學(xué)清洗后放置入電鍍液中（內(nèi)含氧化鋅），通電后鋅分子被電離出來(lái)被附著在鋼板的表面形成鍍鋅橋架。

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.

接地跨接線是用在比如橋架各節(jié)段電線管之間的斷接口電氣輔助聯(lián)通用的起傳導(dǎo)電位的作用，正常時(shí)不通過(guò)電流。

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?yàn)殄冧\橋架屬于金屬材質(zhì)，金屬材質(zhì)都帶有的導(dǎo)電性，電纜橋架跨接線用于兩節(jié)橋架連接處,它起到漏電保護(hù)的作用。 鍍鋅橋架之間可利用鍍鋅連接板作為跨接線,把橋架連成一體在連接板兩端的兩只連接螺栓上加鍍鋅分層橋架安裝,先安裝上層,后安裝下層,上下層之間距離要留有余量,有利于后期電纜敷設(shè)和檢修。即將各個(gè)橋架連接起來(lái)，防止漏電時(shí)有橋架不與其他橋架相連而導(dǎo)致漏電造成人身危害，終會(huì)有接地線將各段橋架連接大地。

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.

鍍鋅橋架跨接線要求：

Galvanized bridge jumper requirements:

沿電纜橋架全長(zhǎng)另敷設(shè)接地干線時(shí)，每段（包含非直線段）電纜橋架應(yīng)起碼有一點(diǎn)與接地干線可靠連接。

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.

電纜橋架系統(tǒng)應(yīng)具有可靠的電氣連接并接地（只對(duì)金屬橋架）。

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

當(dāng)允許利用電纜橋架系統(tǒng)構(gòu)成接地干線回路時(shí)應(yīng)符合以下要求。電纜橋架端部之間連接電阻應(yīng)不大于0.00033歐姆，接地孔應(yīng)絕緣涂層。在1KV及以下中性點(diǎn)直接接地系統(tǒng)中，受電設(shè)備的接地與系統(tǒng)中性線接地相連。裝有處動(dòng)切斷供電裝軒時(shí)，電纜橋架的級(jí)長(zhǎng)方向金屬橫截面積應(yīng)不小于規(guī)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.

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