The utility model is composed of a cable tray, a cable tray, a cable tray, a cable tray, a cable tray, and a cable tray. There are many types of bridge products on the shopping mall, and the products are of high quality, which are widely concerned by users. Many products are made of high-quality cold-rolled steel plate. The surface process includes cold-dip galvanizing, hot-dip galvanizing, electrostatic spraying, fire-retardant coating, baking paint, etc.

濟南電纜橋架的外觀有很多種，比如鍍鋅、噴塑、鍍鋅+噴塑。但線槽好像就是鍍鋅。橋架還分很多種，例如：梯形橋架、金屬線槽，還有玻璃鋼橋架等等。電纜橋架和金屬線槽的區別具體如下：

There are many kinds of appearance of cable tray in Jinan, such as galvanizing, spraying plastic, galvanizing + spraying plastic. But the trunking seems to be galvanized. There are many kinds of bridge, such as trapezoidal bridge, metal raceway, glass fiber reinforced plastic bridge and so on. The differences between cable tray and metal raceway are as follows:

1.電纜橋架一般寬度>200mm，金屬線槽寬度<200mm。

1. The general width of cable tray is more than 200 mm, and the width of metal raceway is less than 200 mm.

2.電纜橋架主要用于敷設電纜，金屬線槽主要用于敷設導線。

2. Cable tray is mainly used for laying cables, and metal trunking is mainly used for laying conductors.

3.電纜橋架型式有梯式、槽式、托盤式、組合式等多種，而在材質和防腐處理方面又分鋁合金、玻璃鋼、冷（熱）軋鋼板鍍鋅、噴涂等。金屬線槽就一種，一般用熱軋鋼板作成。

3. There are many types of cable tray, such as ladder type, trough type, tray type and combined type. In terms of material and anti-corrosion treatment, it is divided into aluminum alloy, glass fiber reinforced plastics, cold (hot) rolled steel plate galvanizing, spraying, etc. Metal raceway on one, generally made of hot-rolled steel plate.

4.電纜橋架敷設時一般應考慮其荷載、撓度、填充率。

4. The load, deflection and filling rate of cable tray shall be generally considered when laying.

5.金屬線槽約等于槽式電纜橋架，只不過某些金屬線槽尺寸較小罷了（地面線槽除外）。有些從橋架下來需接到配電柜的線都是走到金屬線槽里再接入配電柜.

5. The metal trunking is approximately equal to the trough type cable tray, but some metal trunking are small in size (except for the ground raceway). Some from the bridge down to the distribution cabinet line are to go to the metal slot and then access to the distribution cabinet

6.橋架有好多種、是開放式的，線槽多數是封閉的（塑料&金屬）7.兩種敷設方式載流量不同

6. There are many kinds of cable tray, which are open type, and the trunking is mostly closed (plastic & metal). 7. The carrying capacity of the two laying methods is different

8.橋架一般裁質是冷軋鋼板，而線槽用的是鍍鋅鐵皮。

8. The cable tray is generally made of cold-rolled steel plate, while the trunking is made of galvanized iron sheet.

9.從外觀跟材質上分：我的觀點是橋架比金屬線槽厚，安裝相對牢固。

9. From the appearance and material: in my opinion, the bridge is thicker than the metal raceway, and the installation is relatively firm.

10.既然規范有對橋架、金屬線槽的分別說明，它們在材質方面就有區別。《民用建筑電氣設計規范》上有對應條款的要求。

10. Since the specification has a separate description of bridge and metal trunking, they are different in material. There are requirements of corresponding clauses in code for electrical design of civil buildings.