托盘线槽桥架的质量要求可从多个维度进行综合分析，结合行业标准及实际应用需求。

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

　　好质量桥架应表面平整光滑，无划痕、凹陷、气泡或毛刺，焊缝均匀无漏焊、烧穿等问题。涂层需均匀且附着力强，防腐性能关键。例如，锌铝镁涂层厚度220μm,耐盐雾性能需过1000小时。边角应圆滑无锐角，避免安装或使用中损伤电缆或人员。

　　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.

　　常见材质包括镀锌钢、铝合金、锌铝镁等。镀锌层厚度需>12.6μm，户外环境建议使用PVDF涂层。托盘式桥架的U型截面设计可提升抗弯刚度，符合标准。底板厚度少2.0mm, 侧板1.5mm以上，确保载荷匹配。焊接部位需无裂缝/气孔，动志荷载测试需达标。宽度、高度、厚度等需符合行业标准，长度偏差、水平度、垂直度需严格控制。切割、折弯工艺需保证尺寸准，避免变形。

　　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.

　　生产过程中需定期检验。托盘式桥架散热优于槽式，适合大电流电缆。槽式桥架防火性能更优，可降低火焰蔓延速度70%。托盘内电缆填充率60%,梯架70%，以保证散热和维护空间。水平支架间距1.5-3.0m,垂直支架2m。转弯处需用连接配件,接地电阻≤40。腐蚀性环境需选择耐腐蚀材质。

　　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.

　　托盘线槽桥架的质量需综合评估外观、材料、结构、功能及安装要求，同时参考具体应用场景。建议先选择符合国标且通过严格生产工艺控制的产品。

　　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.