When the cable tray undergoes deformation, the bearing capacity of the bridge shall not exceed the value obtained by dividing the load by a factor of 1.5. Under the allowable uniform load, the relative deflection value of the ladder and tray should not exceed 1/200 of the steel; Aluminum alloy should not exceed 1/300. The ratio of deflection to arm length of the steel support arm under allowable load should not exceed 1/100. 6.2.
When the height of the fireproof cable tray is 50 or 100, there are 6 connection holes at both ends; When the bridge height is 150 and 200, there are 12 connection holes at both ends. According to personnel related to cable trays in Hebei Province, fire barriers can be installed during construction, and specific measures need to be taken. The cables on both sides of the firewall are densely separated and wrapped. This fireproof bridge has the characteristics of fire resistance, fire resistance, oil resistance, corrosion resistance, and easy overall installation.
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Modern fireproof galvanized cable tray is a true new bridge and the second-generation core of cable tray. Do you know the requirements for cable trays now? Determine the position of the defense line → Embed expansion bolts or iron parts → Install brackets, hangers, and brackets → Install cable trays → Install protective grounding wires.
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