電纜槽盒和電纜橋架有以下區(qū)別：

　　There are the following differences between cable tray boxes and cable trays:

　　1.規(guī)格尺寸：電纜槽盒的尺寸較小，通常在200×100到600×200之間，而電纜橋架的尺寸較大，通常在100×50到1000×200之間。因此，對于電纜數(shù)量較多的情況，一般選用橋架。

　　1. Specification and size: The size of cable tray boxes is relatively small, usually between 200 × 100 and 600 × 200, while the size of cable trays is relatively large, usually between 100 × 50 and 1000 × 200. Therefore, for situations with a large number of cables, cable trays are generally selected.

　　2.板材厚度：根據(jù)《2008民用建筑電氣設(shè)計規(guī)范》，金屬線槽也稱槽式橋架，一般由0.4-1.5mm厚的整張鋼板彎制而成的槽型部件，而橋架比線槽更加結(jié)實，可以承受更多的電線電纜，常用在強電系統(tǒng)中。

　　2. Plate thickness: According to the "2008 Code for Electrical Design of Civil Buildings", metal cable trays, also known as trough type cable trays, are generally groove shaped components made by bending a 0.4-1.5mm thick steel plate. Cable trays are more sturdy than cable trays and can withstand more wires and cables. They are commonly used in high-voltage systems.

　　3.密封性：金屬線槽密封性較好，不一定要支架支撐，可以在電纜溝和建筑夾層中敷設(shè)。而槽式橋架有些是半敞開式的，需要支架做支撐，通常在室內(nèi)或室外進(jìn)行架空建設(shè)。

　　3. Sealing: Metal cable trays have good sealing performance and do not necessarily require support brackets. They can be laid in cable trenches and building interlayers. Some trough type cable trays are semi open and require brackets for support, usually constructed overhead indoors or outdoors.

　　4.填充率：根據(jù)《2008民用建筑電氣設(shè)計規(guī)范》8.5.3，因安裝高度不同，線槽和橋架內(nèi)的電線電纜總截面要求也是不一樣的。線槽內(nèi)電線電纜的總截面應(yīng)小于等于線槽內(nèi)截面的20%，載流導(dǎo)體要小于等于30根，而橋架是電纜的總截面應(yīng)小于等于截面的40%。

　　4. Filling rate: According to section 8.5.3 of the "2008 Code for Electrical Design of Civil Buildings", the total cross-sectional requirements for wires and cables in cable trays and bridges vary depending on the installation height. The total cross-sectional area of wires and cables in the trunking should be less than or equal to 20% of the cross-sectional area inside the trunking, the number of current carrying conductors should be less than or equal to 30, and the total cross-sectional area of cable trays should be less than or equal to 40% of the cross-sectional area.

　　5.用途：橋架主要用在鋪設(shè)電力電纜和控制電纜，而線槽的強度較低，通常用在鋪設(shè)導(dǎo)線和通訊線纜，例如網(wǎng)絡(luò)電話等。

　　5. Purpose: Cable trays are mainly used for laying power cables and control cables, while cable trays have lower strength and are usually used for laying wires and communication cables, such as network telephones.

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