電纜橋架分為槽式、托盤式和梯架式、網格式等結構,由支架、托臂和安裝附件等組成。建筑物內橋架可以獨立架設, 也可以附設在各種建(構)筑物和管廊支架上。電纜橋架有哪些種類呢？安裝電纜橋架時應該注意那些問題？?

Cable trays are divided into trough type, tray type, ladder type, mesh type and other structures, consisting of brackets, support arms and installation accessories. The bridge frame inside the building can be independently erected or attached to various buildings and pipe gallery supports. What are the types of cable trays? What issues should be noted when installing cable trays??

電纜橋架尺寸怎么選擇及計算？橋架安裝時應該注意哪些問題？(圖1)

How to choose and calculate the size of cable tray? What issues should be noted when installing cable trays? (Figure 1)

1、需屏蔽電氣干擾的電纜網路或有防護外部（如：有腐蝕液休，易燃粉塵等環境）影響的要求時，應選用（FB）類槽式復合型防腐屏蔽電纜橋架（帶蓋）。

1. When there is a requirement to shield cable networks from electrical interference or to protect against external influences (such as corrosive liquids, flammable dust, etc.), (FB) type slot type composite anti-corrosion shielding cable trays (with covers) should be selected.

2、強腐蝕性環境應采用（F）類復合環氧樹脂防腐阻燃型電纜橋架。托臂、支架也要選用同樣材料，提高橋架及附件的使用壽命，電纜橋架。在容易積灰和其它需遮蓋的環境或戶外場所宜加蓋板。

2. For highly corrosive environments, (F) type composite epoxy resin anti-corrosion and flame-retardant cable trays should be used. The same materials should be used for the support arm and bracket to improve the service life of the cable tray and accessories. Cover plates should be added in environments or outdoor places that are prone to dust accumulation and require cover.

3、除上述情況外，可根據現場環境及技術要求選用托盤式、槽式、梯級式、玻璃防腐阻燃電纜橋架或鋼質普通型橋架。在容易積灰和其它需遮蓋的環境或戶外場所宜加蓋板。

3. In addition to the above situations, tray type, trough type, step type, glass anti-corrosion and flame-retardant cable trays or steel ordinary cable trays can be selected according to the on-site environment and technical requirements. Cover plates should be added in environments or outdoor places that are prone to dust accumulation and require cover.

4、在公共通道或戶外跨越道路段，底層梯級的底部宜加墊板或在該段使用托盤 。 大跨距跨越公共通道時，可根據用戶要求提高橋架的載荷能力或選用行架。

4. When crossing public passages or outdoor road sections, it is advisable to add padding or use pallets at the bottom of the lower steps. When crossing public passages with large spans, the load capacity of the bridge frame can be increased or a scaffolding can be selected according to user requirements.

5、大跨距（>3m）要選用復合型橋架（FB）。

5. Composite cable trays (FB) should be selected for large spans (>3m).

6、戶外要選用復合環氧樹指橋架（F）。

6. Choose composite epoxy tree finger bridge (F) for outdoor use.

1、復合環氧樹脂電纜橋架的寬度和高度就按下表選擇，并應符合電纜真充率不超過有關標準規范的規定值，動力電纜可取40-50%，控制電纜可取50-70%，另外需予留10-25%的式程發展余量。

1. The width and height of the composite epoxy resin cable tray should be selected according to the table below, and should comply with the specified values of the cable true filling rate not exceeding the relevant standard specifications. The power cable can be taken as 40-50%, the control cable can be taken as 50-70%, and an additional 10-25% formula development margin should be reserved.

2、各種彎通及附件規格應符合工程布置條件并與橋架相配套。

2. The specifications of various bends and accessories should comply with the engineering layout conditions and be compatible with the bridge frame.

3、支、吊架規格的選擇，應按橋架規格、層數、跨距等條件配置。并應滿足荷載的要求。

3. The selection of support and hanger specifications should be configured according to the specifications, number of layers, span, and other conditions of the bridge frame. And it should meet the requirements of the load.

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