需屏蔽電氣干擾的電纜網(wǎng)路或有防護(hù)外部（如：有腐蝕液休，易燃粉塵等環(huán)境）影響的要求時(shí)，應(yīng)選用（FB）類槽式復(fù)合型防腐屏蔽電纜橋架（帶蓋）。
When it is necessary to shield the cable network from electrical interference or when there is a requirement to protect against external influences (such as corrosive liquids, flammable dust, etc.), (FB) type slot type composite anti-corrosion shielding cable tray (with cover) should be selected.
強(qiáng)腐蝕性環(huán)境應(yīng)采用（F）類復(fù)合環(huán)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(huán)境或戶外場所宜加蓋板。
Strong corrosive environments should use (F) composite epoxy resin anti-corrosion and flame-retardant cable trays. The bracket should also be made of the same material to improve the service life of the cable tray and accessories. Cover plates should be added in environments or outdoor areas that are prone to dust accumulation and require covering.
除上述情況外，可根據(jù)現(xiàn)場環(huán)境及技術(shù)要求選用托盤式槽式梯級(jí)式玻璃防腐阻燃電纜橋架或鋼質(zhì)普通型橋架。在容易積灰和其它需遮蓋的環(huán)境或戶外場所宜加蓋板。
In addition to the above situations, tray type trough type stepped glass anti-corrosion 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 areas that are prone to dust accumulation and require covering.
在公共通道或戶外跨越道路段，底層梯級(jí)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(shí)，可根據(jù)用戶要求提高橋架的載荷能力或選用行架。
In public passages or outdoor crossing road sections, it is advisable to add a pad at the bottom of the bottom step or use a pallet at that section. When crossing a public passage with a large span, the load capacity of the bridge can be increased or a gantry can be selected according to user requirements.

大跨距（>3m）要選用復(fù)合型橋架（FB）。
Composite cable trays (FB) should be used for large spans (>3m).
電纜橋架規(guī)格選擇
Selection of cable tray specifications
復(fù)合環(huán)氧樹脂電纜橋架的寬度和高度就按下表選擇，并應(yīng)符合電纜真充率不超過有關(guān)標(biāo)準(zhǔn)規(guī)范的規(guī)定值，動(dòng)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(fā)展余量。
The width and height of the composite epoxy resin cable tray should be selected according to the following table, and should comply with the cable true filling rate not exceeding the specified values of relevant standards and specifications. Power cables can be taken as 40-50%, control cables can be taken as 50-70%, and a process development margin of 10-25% should be left.
各種彎通及附件規(guī)格應(yīng)符合工程布置條件并與橋架相配套。
The specifications of various bends and accessories should comply with the engineering layout conditions and be matched with the bridge.
支吊架規(guī)格的選擇，應(yīng)按橋架規(guī)格層數(shù)跨距等條件配置。并應(yīng)滿足荷載的要求。
The selection of support and hanger specifications should be based on conditions such as bridge specifications, layers, spans, etc. And it should meet the requirements of the load.
戶外要選用復(fù)合環(huán)氧樹指橋架（F）。
Composite epoxy tree finger bridge (F) should be selected for outdoor use.