電纜橋架是用于敷設電纜的一種支撐和保護裝置，在建筑電氣、工業廠房等領域有著廣泛的應用，其作用主要包括以下幾個方面：

Cable tray is a supporting and protective device used for laying cables, which has a wide range of applications in fields such as building electrical and industrial plants. Its functions mainly include the following aspects:

支撐電纜：為電纜提供可靠的支撐結構，使電纜能夠按照設計要求進行敷設和固定，避免電纜因自身重量或外力作用而出現下垂、斷裂等情況，確保電纜的正常運行。

Supporting cables: providing reliable support structures for cables, enabling them to be laid and fixed according to design requirements, avoiding sagging, breakage, and other situations caused by their own weight or external forces, and ensuring the normal operation of cables.

保護電纜：可以保護電纜免受外界因素的影響，如機械損傷、腐蝕、灰塵、水分等。橋架的外殼能夠隔離電纜與外界環境，減少電纜故障的發生概率，延長電纜的使用壽命。

Protecting cables: It can protect cables from external factors such as mechanical damage, corrosion, dust, moisture, etc. The shell of the cable tray can isolate the cable from the external environment, reduce the probability of cable failure, and extend the service life of the cable.

便于布線管理：使電纜的敷設更加整齊、規范，便于布線和管理。通過將電纜布置在橋架內，可以避免電纜雜亂無章地鋪設，方便施工人員進行安裝和維護，同時也有利于后期的線路改造和擴展。

Easy wiring management: making cable laying more neat, standardized, and convenient for wiring and management. By arranging cables inside the cable tray, it is possible to avoid disorderly laying of cables, facilitate installation and maintenance by construction personnel, and also facilitate later line renovation and expansion.

增強性：電纜橋架具有良好的接地性能，可以將電纜外皮上的感應電荷或漏電電流引入大地，降低觸電風險，保障人員和設備的。此外，橋架還能在一定程度上防止電纜發生火災時火勢蔓延，提高電氣系統的性。

Enhanced safety: Cable trays have good grounding performance, which can introduce induced charges or leakage currents on the cable sheath into the ground, reduce the risk of electric shock, and ensure the safety of personnel and equipment. In addition, cable trays can also prevent the spread of fire in case of cable fires to a certain extent, improving the safety of electrical systems.

提高通風散熱效果：橋架通常具有一定的通風空間，有助于電纜在運行過程中散熱。良好的散熱條件可以降低電纜的運行溫度，提高電纜的載流量和傳輸效率，減少因過熱導致的電纜故障和損耗。

Improve ventilation and heat dissipation effect: Cable trays usually have a certain ventilation space, which helps cables dissipate heat during operation. Good heat dissipation conditions can reduce the operating temperature of cables, improve their current carrying capacity and transmission efficiency, and reduce cable failures and losses caused by overheating.