济南电缆桥架的胀缩与温度有关
桥架主要由玻璃纤维增强材料和无机胶粘剂复合而成的防火板、金属架和其他防火基材组成。外层涂有防火涂料，这样防火桥架在暴露在火中时不会燃烧，从而阻止火势蔓延。
The bridge is mainly composed of fireproof board, metal frame and other fireproof base materials composed of glass fiber reinforced material and inorganic adhesive. The outer layer is coated with fireproof coating, so that the fireproof bridge will not burn when exposed to the fire, thus preventing the spread of the fire.
它具有很好的防火阻燃效果，同时具有防火、耐油、耐腐蚀、、无污染、整体安装方便、结构合理、使用寿命长、外形美观的特点。电缆安装在电缆桥架上，环境干净，清洗方便。防火涂料具有涂层薄、耐火性高、附着力强的特点。
At the same time, it has the characteristics of fire prevention, oil resistance, corrosion resistance, non-toxic, no pollution, convenient installation, reasonable structure, long service life and beautiful appearance. The cable is installed on the cable tray, and the environment is clean and easy to clean. Fire retardant coating has the characteristics of thin coating, high fire resistance and strong adhesion.
济南电缆桥架
Jinan cable bridge
电缆桥架，表面磨砂，一般用于消防设备的所有配电线路，包括消防控制室、消防水泵、消防电梯、排烟风机和火灾自动报警系统。除火灾自动报警系统外，其他配电线路可采用不含防火桥架的耐火电缆。防火桥架在地下车库的耐火时间要求在1小时以上。对于需要桥架防火的部分，可在托盘和梯子框架上增加防火或阻燃的板、网材料构成封闭或半封闭式结构。
Cable tray, surface frosted, generally used for all distribution lines of fire fighting equipment, including fire control room, fire pump, fire elevator, smoke exhaust fan and automatic fire alarm system. In addition to the automatic fire alarm system, other distribution lines can use fire-resistant cables without fire-proof bridge. The fire resistance time of fireproof bridge in underground garage should be more than 1 hour. For the parts that need to be fireproof, fireproof or flame-retardant plates and nets can be added on the tray and ladder frame to form a closed or semi closed structure.
电缆桥架在日常生活中并不常见，它对防火桥架的膨胀和收缩感到好奇吗?让小编告诉你防火桥架的膨胀和收缩。
Cable tray is not common in daily life. Is it curious about the expansion and contraction of fire-proof bridge? Let Xiaobian tell you about the expansion and contraction of fire-proof bridge.
由于环境温度的变化，钢电缆桥架会因热而膨胀，因冷而收缩。室外桥架受温度影响较大，如环境很高温度为40，很低温度为-20，则电缆桥架的收缩量可由下式求得：Δt=11.2×10-6×60deg(度)×1000mm。
Due to the change of ambient temperature, steel cable tray will expand due to heat and shrink due to cold. The outdoor cable tray is greatly affected by temperature. If the environment is very high, the temperature is 40, and the very low temperature is - 20, then the shrinkage of cable tray can be obtained from the following formula: Δ t = 11.2 × 10-6 × 60Deg (degree) × 1000mm.
由此得出结论：温差为60℃时,Δι=0.672mm/m温差为50℃时,Δι=0.560mm/m温差为40℃时,Δι=0.448mm/m，工程设计中直线段电缆桥架应考虑伸缩接头,伸缩接头的间距建议按以下取定：当温差为40℃时为50m;当温差为50℃时为40m;当温差为60℃时为40m。
It is concluded that: when the temperature difference is 60 ℃, Δ ι = 0.672mm/m, when the temperature difference is 50 ℃, Δι = 0.560mm/m, when the temperature difference is 40 ℃, Δι = 0.448mm/m, the expansion joint should be considered in the engineering design of cable tray, and the spacing of expansion joint is recommended to be determined as follows: 50m when the temperature difference is 40 ℃, 40m when the temperature difference is 50 ℃, and 40m when the temperature difference is 60 ℃.
The bridge is mainly composed of fireproof board, metal frame and other fireproof base materials composed of glass fiber reinforced material and inorganic adhesive. The outer layer is coated with fireproof coating, so that the fireproof bridge will not burn when exposed to the fire, thus preventing the spread of the fire.
它具有很好的防火阻燃效果，同时具有防火、耐油、耐腐蚀、、无污染、整体安装方便、结构合理、使用寿命长、外形美观的特点。电缆安装在电缆桥架上，环境干净，清洗方便。防火涂料具有涂层薄、耐火性高、附着力强的特点。
At the same time, it has the characteristics of fire prevention, oil resistance, corrosion resistance, non-toxic, no pollution, convenient installation, reasonable structure, long service life and beautiful appearance. The cable is installed on the cable tray, and the environment is clean and easy to clean. Fire retardant coating has the characteristics of thin coating, high fire resistance and strong adhesion.
济南电缆桥架
Jinan cable bridge
电缆桥架，表面磨砂，一般用于消防设备的所有配电线路，包括消防控制室、消防水泵、消防电梯、排烟风机和火灾自动报警系统。除火灾自动报警系统外，其他配电线路可采用不含防火桥架的耐火电缆。防火桥架在地下车库的耐火时间要求在1小时以上。对于需要桥架防火的部分，可在托盘和梯子框架上增加防火或阻燃的板、网材料构成封闭或半封闭式结构。
Cable tray, surface frosted, generally used for all distribution lines of fire fighting equipment, including fire control room, fire pump, fire elevator, smoke exhaust fan and automatic fire alarm system. In addition to the automatic fire alarm system, other distribution lines can use fire-resistant cables without fire-proof bridge. The fire resistance time of fireproof bridge in underground garage should be more than 1 hour. For the parts that need to be fireproof, fireproof or flame-retardant plates and nets can be added on the tray and ladder frame to form a closed or semi closed structure.
电缆桥架在日常生活中并不常见，它对防火桥架的膨胀和收缩感到好奇吗?让小编告诉你防火桥架的膨胀和收缩。
Cable tray is not common in daily life. Is it curious about the expansion and contraction of fire-proof bridge? Let Xiaobian tell you about the expansion and contraction of fire-proof bridge.
由于环境温度的变化，钢电缆桥架会因热而膨胀，因冷而收缩。室外桥架受温度影响较大，如环境很高温度为40，很低温度为-20，则电缆桥架的收缩量可由下式求得：Δt=11.2×10-6×60deg(度)×1000mm。
Due to the change of ambient temperature, steel cable tray will expand due to heat and shrink due to cold. The outdoor cable tray is greatly affected by temperature. If the environment is very high, the temperature is 40, and the very low temperature is - 20, then the shrinkage of cable tray can be obtained from the following formula: Δ t = 11.2 × 10-6 × 60Deg (degree) × 1000mm.
由此得出结论：温差为60℃时,Δι=0.672mm/m温差为50℃时,Δι=0.560mm/m温差为40℃时,Δι=0.448mm/m，工程设计中直线段电缆桥架应考虑伸缩接头,伸缩接头的间距建议按以下取定：当温差为40℃时为50m;当温差为50℃时为40m;当温差为60℃时为40m。
It is concluded that: when the temperature difference is 60 ℃, Δ ι = 0.672mm/m, when the temperature difference is 50 ℃, Δι = 0.560mm/m, when the temperature difference is 40 ℃, Δι = 0.448mm/m, the expansion joint should be considered in the engineering design of cable tray, and the spacing of expansion joint is recommended to be determined as follows: 50m when the temperature difference is 40 ℃, 40m when the temperature difference is 50 ℃, and 40m when the temperature difference is 60 ℃.
