Selection of fire rating of cable tray:

在有防火要求的地段，济南电缆桥架可通过在电缆梯、桥架内添加防火或阻燃板、网等材料，形成封闭或半封闭结构，并采取在桥架及其支吊架表面涂防火涂料等措施。整体耐火性能应满足相关规范或标准的要求。在防火要求高的地方，不应使用电缆桥架。

In sections with fire protection requirements, Jinan cable tray can form a closed or semi closed structure by adding fireproof or flame retardant plates, nets and other materials in the cable ladder and tray, and take measures such as coating the surface of the tray and its supports and hangers with fire retardant coating. The overall fire resistance shall meet the requirements of relevant national codes or standards. Cable trays shall not be used in places with high fire protection requirements.

在相同规格下，阻燃电缆桥架比钢制电缆桥架贵2.2倍，使用寿命是钢制电缆桥架的5倍以上，重量比钢制电缆桥架重百分之30。其使用寿命是钢制电缆桥架的三倍多，重量与钢制电缆桥架基本相同。

Under the same specification, flame retardant cable tray is 2.2 times more expensive than steel cable tray, its service life is more than 5 times that of steel cable tray, and its weight is 30% heavier than steel cable tray. Its service life is more than three times that of steel cable tray, and its weight is basically the same as that of steel cable tray.

电缆桥架的定期维护：

Regular maintenance of cable tray:

1.一般来说，电缆桥架可以每季度维护一次。用软布擦去表面的灰尘后，用一种特殊的蜡抛光剂均匀地擦拭表面，过一会儿再用一块干净的软布抛光，这是防潮的。五金配件和金属手柄可以用较少的机油擦拭和干燥，因此它们可以灵活旋转，防锈。

1. Generally speaking, the cable tray can be maintained once a quarter. After wiping the dust off the surface with a soft cloth, wipe the surface evenly with a special wax polishing agent, and then polish with a clean soft cloth after a while, which is moisture-proof. Hardware fittings and metal handles can be wiped and dried with less oil, so they can rotate flexibly and prevent rust.

2.避免放置在湿热的地方，保持房间通风干燥。

2. Avoid placing in hot and humid places and keep the room ventilated and dry.

3.避免与腐蚀性液体接触，如酒精和指甲油。

3. avoid contact with corrosive liquids such as alcohol and nail polish.

4.应使用干净的软布和专用保养蜡。

4. Clean soft cloth and special maintenance wax shall be used.