1）电缆桥架、线槽及其支吊架使用在有腐蚀性环境中，应采用耐腐蚀的刚性材料制造，或采取防腐蚀处理，防腐蚀处理方式应满足工程环境和耐久性的要求。
1) cable tray, trunking and their supports and hangers shall be made of corrosion-resistant rigid materials or treated with anti-corrosion treatment, which shall meet the requirements of engineering environment and durability.
2）电缆桥架在有防火要求的区段内，可在电缆梯架、托盘内添加具有耐火或难燃性能的板、网等材料构成封闭或半封闭式结构，并采取在桥架及其支吊架表面涂刷防火涂层等措施，其整体耐火性能应满足国家有关规范或标准的要求。
2) in the section with fire protection requirements, the cable tray can be added with fire-resistant or flame-retardant plates, nets and other materials in the cable ladder and tray to form a closed or semi closed structure, and measures such as applying fire-resistant coating on the surface of the cable tray and its supports and hangers shall be taken, and the overall fire-resistant performance shall meet the requirements of relevant national codes or standards.
3）在工程防火要求较高的场所，不宜采用铝合金电缆桥架。
3) aluminum alloy cable tray should not be used in places with high fire protection requirements.
4）电缆梯架、托盘宽度和高度的选择应符合填充率的要求，电缆的梯架和托盘内的填充率在一般情况下，电力电缆可取40%～50%，控制电缆可取50%～70%，且宜预留10%～25%工程发展裕量。
4) the selection of width and height of cable ladder and tray shall meet the requirements of filling rate. Generally, the filling rate of cable ladder and tray can be 40% - 50% for power cable, 50% - 70% for control cable, and 10% - 25% for project development margin should be reserved.