Ladder type cable tray of product description:

　　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。

　　Steam-water 1) cable tray, trough and its use in corrosive environment, the corrosion resistance of the rigid materials should be adopted, or corrosion resistance, anti-corrosion treatment 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有关规范或标准的要求。

　　2) cable bridge, there is a requirement for fire prevention in the segment can be added within the cable ladder, tray with fire or flame retardant performance of the plate, the material such as network forms a closed or semi-closed structure, and take in the steam-water bridge and its surface besmear to brush fire retardant coating, its overall refractory performance should meet the requirements of relevant national norms 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) the demand is higher in the engineering in place, unfavorable use aluminum alloy cable tray.

　　4)电缆梯架宽度和高度的选择应符合填充率的要求，电缆的梯架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) cable ladder width and height of choice should accord with the requirement of fill rates, cable ladder filling rate in the general case, power cable desirable 40% ~ 50%, and control cable desirable 50% ~ 70%, 10% ~ 25% and well reserved engineering development margin.

　　5)在选择电缆梯架的荷载等级时，电缆桥架的工作均布荷载不应大于所选电缆桥架荷载等级的额定均布荷载，如果电缆桥架的支吊架的实际跨距不等于2m 时，则 工作均布荷载应满足要求。

　　5) when choosing cable ladder load level, the cable tray work uniformly distributed load should not be greater than the selected uniformly distributed load rating of the cable bridge load level, if the actual span cable tray of steam-water is not equal to 2 m, the uniformly distributed load work shall meet the requirements.

　　6)各种组件及支吊架在满足相应荷载的条件下，其规格尺寸应与托盘、梯架的直线段、弯通系列相匹配。

　　6) in steam-water various components and meet the corresponding load conditions, the size should be with a straight run of tray, ladder, curved series matching.

　　7)在选择电缆桥架的弯通或引上、引下装置时，不应小于电缆桥架内电缆小允许弯曲半径。

　　7) in the selection of cable tray bending or tilt, guide device, should not be less than the minimum allowable bending radius in cable tray.

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