托盤線槽橋架的質量要求可從多個維度進行綜合分析，結合行業標準及實際應用需求。

　　The quality requirements for tray cable trays can be comprehensively analyzed from multiple dimensions, combined with industry standards and practical application needs.

　　好質量橋架應表面平整光滑，無劃痕、凹陷、氣泡或毛刺，焊縫均勻無漏焊、燒穿等問題。涂層需均勻且附著力強，防腐性能關鍵。例如，鋅鋁鎂涂層厚度220μm,耐鹽霧性能需過1000小時。邊角應圓滑無銳角，避免安裝或使用中損傷電纜或人員。常見材質包括鍍鋅鋼、鋁合金、鋅鋁鎂等。鍍鋅層厚度需>12.6μm，戶外環境建議使用PVDF涂層。托盤式橋架的U型截面設計可提升抗彎剛度，符合標準。底板厚度至少2.0mm, 側板1.5mm以上，確保載荷匹配。焊接部位需無裂縫/氣孔，動志荷載測試需達標。寬度、高度、厚度等需符合行業標準，長度偏差、水平度、垂直度需嚴格控制。切割、折彎工藝需保證尺寸準，避免變形。生產過程中需定期檢驗。托盤式橋架散熱優于槽式，適合大電流電纜。槽式橋架防火性能更優，可降低火焰蔓延速度70%。托盤內電纜填充率60%,梯架70%，以保證散熱和維護空間。水平支架間距1.5-3.0m,垂直支架2m。轉彎處需用連接配件,接地電阻≤40。腐蝕性環境需選擇耐腐蝕材質。

　　Good quality cable trays should have a smooth and even surface, without scratches, dents, bubbles or burrs, and uniform welds without any issues such as missed welding or burn through. The coating should be uniform and have strong adhesion, and the anti-corrosion performance is crucial. For example, a zinc aluminum magnesium coating with a thickness of 220 μ m requires a salt spray resistance of over 1000 hours. The corners should be smooth without sharp angles to avoid damaging cables or personnel during installation or use. Common materials include galvanized steel, aluminum alloy, zinc aluminum magnesium, etc. The thickness of the galvanized layer should be greater than 12.6 μ m, and it is recommended to use PVDF coating for outdoor environments. The U-shaped section design of the tray type bridge can improve the bending stiffness and meet the standards. The bottom plate thickness should be at least 2.0mm, and the side plate thickness should be at least 1.5mm to ensure load matching. The welding area must be free of cracks/pores, and the dynamic load test must meet the standards. Width, height, thickness, etc. must comply with industry standards, and length deviation, levelness, and verticality must be strictly controlled. The cutting and bending processes must ensure accurate dimensions and avoid deformation. Regular inspections are required during the production process. Tray style cable trays have better heat dissipation than trough style ones and are suitable for high current cables. The groove type bridge has better fire resistance and can reduce the flame spread speed by 70%. The cable filling rate inside the tray is 60%, and the ladder frame is 70% to ensure heat dissipation and maintenance space. The distance between horizontal brackets is 1.5-3.0m, and the distance between vertical brackets is 2m. Connection accessories are required at turning points, and the grounding resistance is ≤ 40. Corrosion resistant materials should be selected for corrosive environments.

　　托盤線槽橋架的質量需綜合評估外觀、材料、結構、功能及安裝要求，同時參考具體應用場景。建議先選擇符合國標且通過嚴格生產工藝控制的產品。

　　The quality of tray trunking cable trays needs to be comprehensively evaluated in terms of appearance, materials, structure, function, and installation requirements, while also referring to specific application scenarios. It is recommended to first choose products that comply with national standards and have undergone strict production process control.

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