鋅鎂鋁電纜橋架安裝核心注意事項(xiàng)：做好防腐防護(hù)、保證連接牢固接地、適配環(huán)境規(guī)避損傷，避免影響耐蝕性和使用壽命。

　　Core precautions for the installation of zinc magnesium aluminum cable trays: do a good job of anti-corrosion protection, ensure a firm connection and grounding, adapt to the environment to avoid damage, and avoid affecting corrosion resistance and service life.

　　具體要點(diǎn)：

　　Specific points:

　　1. 防腐保護(hù)：安裝時(shí)避免劃傷表面鋅鎂鋁涂層，劃傷處需及時(shí)補(bǔ)涂專(zhuān)用防腐漆；戶外/腐蝕環(huán)境中，支架與墻體、橋架連接處需加防腐墊片，沿海/化工區(qū)需額外做密封處理（如接縫打防腐膠）。

　　1. Anti corrosion protection: Avoid scratching the surface zinc magnesium aluminum coating during installation, and timely apply special anti-corrosion paint to the scratched area; In outdoor/corrosive environments, anti-corrosion gaskets need to be added to the connections between brackets, walls, and cable trays. In coastal/chemical areas, additional sealing treatment (such as applying anti-corrosion glue to joints) is required.

　　2. 連接與固定：必須用配套專(zhuān)用連接件，螺栓緊固時(shí)加防松墊圈，拼接縫隙≤1mm；水平橋架支架間距1.5-3米，垂直段≤2米，轉(zhuǎn)彎/端部位置需增設(shè)防晃支架，防止變形松動(dòng)。

　　2. Connection and fixation: Special matching connectors must be used, and anti loosening washers should be added when tightening bolts. The splicing gap should be ≤ 1mm; the spacing between horizontal bridge brackets should be 1.5-3 meters, and the vertical section should be ≤ 2 meters. Anti sway brackets should be added at turning/end positions to prevent deformation and loosening.

　　3. 接地規(guī)范：橋架本體需用銅排或編織帶跨接（每段少1處），兩端與接地干線可靠連接，接地電阻≤4Ω，防爆場(chǎng)景需≤1Ω，避免靜電或漏電風(fēng)險(xiǎn)。

　　3. Grounding specifications: The bridge body needs to be bridged with copper bars or woven tapes (at least one per section), and both ends should be reliably connected to the grounding main line. The grounding resistance should be ≤ 4 Ω, and in explosion-proof scenarios, it should be ≤ 1 Ω to avoid static electricity or leakage risks.

　　4. 環(huán)境與布局：避開(kāi)強(qiáng)電干擾、高溫?zé)嵩矗ㄈ珏仩t、排氣管）及尖銳物體碰撞區(qū)域；敷設(shè)坡度需符合要求（水平≤2‰，垂直段需有防滑措施），電纜敷設(shè)后避免橋架過(guò)載。

　　4. Environment and layout: Avoid strong electrical interference, high-temperature heat sources (such as boilers and exhaust pipes), and areas where sharp objects collide; The laying slope must meet the requirements (horizontal ≤ 2 ‰, anti slip measures must be taken for vertical sections), and overloading of cable trays should be avoided after cable laying.

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