1. The designers themselves are familiar with the specifications to ensure that the volume occupied by the cable tray meets the requirements, generally 40% is better. Try not to exceed the specified density to avoid accelerating the aging of cable insulation, otherwise it is necessary to increase the cable and increase investment.

2、電纜、電線不能在同一線槽內敷設，原因：二種線型的允許溫度不一樣，電線的絕緣層比較薄容易被電纜拉傷。電線的機械強度不夠，容易給電纜壓斷。

2. Cables and wires cannot be laid in the same trunking. The reason is that the allowable temperature of the two types of wire is different, and the insulation layer of the wire is relatively thin, which is easy to be pulled by the cable. The mechanical strength of the wire is not enough, which is easy to break the cable.

電纜橋架

Cable tray

3、不同類型的電纜也不應在同一線槽內敷設，主要是運行溫度不一致，如VV系列65度，YJY系列90度。若同一線槽敷設，耐溫低的電纜會加速絕緣老化。

3. Different types of cables should not be laid in the same trunking. The main reason is that the operating temperature is different, such as 65 degrees for VV series and 90 degrees for YJY series. If laid in the same trunking, the cable with low temperature resistance will accelerate insulation aging.

4、電纜橋架布線時，線槽內敷設的電纜容量應根據同一線槽內電纜數量、敷設環境溫度等綜合考慮，一般按電纜額定容量的60%-80%考慮，塑料線槽因散熱不好可按50-70%考慮。

4. During cable tray wiring, the cable capacity laid in the trunking shall be considered comprehensively according to the number of cables in the same trunking, the laying environment temperature, etc., generally 60% - 80% of the rated capacity of the cable, and 50-70% of the plastic trunking due to poor heat dissipation.

5、防火橋架由于其結構特殊（內部增加防火棉、防火板），內部空間比普通橋架小，選用時注意電纜占有。

5. Due to its special structure (adding fireproof cotton and fireproof board inside), the internal space of the fireproof bridge is smaller than that of the ordinary bridge. Pay attention to the floor area ratio of the cable when selecting.

6、防火橋架由于其結構特殊（內部增加防火棉、防火板），散熱條件差， 電纜載流量可按電纜額定載流量的40%-60%考慮。

6. Due to its special structure (adding fireproof cotton and fireproof board inside) and poor heat dissipation conditions, the cable carrying capacity can be considered as 40% - 60% of the rated carrying capacity of the cable.

7、防火橋架由于其結構特殊（內部增加防火棉、防火板），自重比普通橋架重，設計固定支吊架時不能按照鋼制橋架設計規范中的標準間距設置，應加大密度，建議采用1 -1.5米間距，具體視設計的橋架大小定。

7. Due to its special structure (adding fireproof cotton and fireproof board inside), the dead weight of the fireproof bridge is heavier than that of the ordinary bridge. When designing the fixed supports and hangers, they cannot be set according to the standard spacing in the steel bridge design specification, and the density should be increased. It is recommended to use a spacing of 1-1.5m, depending on the size of the designed bridge.

有了濟南電纜橋架上面的小總結，希望對廣大客戶有所幫助，如果有什么不理解的或者尋求幫助的請點擊我們的網站：http://m.h3022.cn或者來電咨詢，我們會盡全力為您解決

With the summary above Jinan cable bridge, I hope it can help our customers. If you have any questions or need help, please click our website: http://m.h3022.cn Or call for consultation, and we will do our best to solve it for you