電纜橋架型式、品種的選擇

Selection of cable tray type and variety

1、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）

1. When the cable network that needs to be shielded from electrical interference or is required to be protected from external influences (such as corrosive liquid, flammable dust, etc.), the (FB) type trough-type composite anti-corrosion shielded cable bridge (with cover) shall be selected

2、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。

2. Class (F) composite epoxy resin anti-corrosion flame-retardant cable tray shall be used in highly corrosive environment. The same materials shall be used for the bracket and bracket to improve the service life of the cable tray and accessories. Cover plates should be added in the environment or outdoor places that are easy to accumulate dust and need to be covered.

3、除上述情況外，可根據(jù)現(xiàn)場還環(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。

3. In addition to the above situations, tray type, trough type, cascade type, glass anti-corrosion flame-retardant cable tray or steel common type cable tray can be selected according to the site, environment and technical requirements. Cover plates should be added in the environment or outdoor places that are easy to accumulate dust and need to be covered.

4、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。

4. In the public passage or outdoor crossing road section, the bottom of the bottom rung should be added with a pad or pallets should be used in this section. When crossing a public passage with a large span, the load capacity of the bridge can be improved or the rack can be selected according to the user's requirements.

5、大跨距（>3m）要選用復(fù)合型橋架（FB）。

5. Composite bridge (FB) shall be selected for large span (>3m).

6、戶外要選用復(fù)合環(huán)氧樹指橋架（F）。

6. Composite epoxy tree-finger bridge (F) shall be selected for outdoor use.

山東電纜橋架規(guī)格選擇

Specification selection of Shandong cable tray

1、為防止纜橋架的規(guī)格尺寸偏大或偏緊，有關(guān)規(guī)定：“電纜總截面積與托盤內(nèi)橫斷面積的比值，電力電纜不應(yīng)大于40%；控制電纜不應(yīng)大于50%。”

1. In order to prevent the specification and size of the cable tray from being too large or too tight, the relevant provisions are as follows: "The ratio of the total cross-sectional area of the cable to the cross-sectional area of the tray shall not be greater than 40% for power cables; and 50% for control cables."

2、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。

2. The specifications of various bends and accessories shall meet the engineering layout conditions and be matched with the bridge.

3、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。

3. The specifications of supports and hangers shall be selected according to the specifications, layers, spans and other conditions of the bridge. And shall meet the requirements of load.

4、要求橋架防火的區(qū)段，必須采用鋼制或不燃、阻燃材料。

4. Steel or non-combustible and flame-retardant materials must be used in the section where the bridge is required to be fireproof.

5、選用橋架的步驟：

5. Steps for selecting bridge:

（1）確定橋架寬度、層數(shù)、支撐點(diǎn)的型式和間距、以及電纜在各層橋架上的分布。

(1) Determine the bridge width, number of layers, type and spacing of support points, and the distribution of cables on each layer of bridge.

（2）計(jì)算每層電纜的均布荷載(kN/m2),初步確定橋架的型號(hào)、規(guī)格。

(2) Calculate the uniformly distributed load of each layer of cable (kN/m2), and preliminarily determine the model and specification of the bridge.

（3）按大的電纜總均布荷載值來驗(yàn)算橋架強(qiáng)度。

(3) The bridge strength shall be checked and calculated according to the total uniform load value of the cable.

這里小編提醒您，要定期保養(yǎng)電纜橋架，否則電纜橋架本身的質(zhì)量會(huì)變差，硬度會(huì)下降，從而影響到其壽命。還有什么疑惑或者需求就來我們網(wǎng)站http://m.ymmgjx.net咨詢！

Here, the editor reminds you that the cable tray should be maintained regularly, otherwise the quality of the cable tray itself will deteriorate and the hardness will decline, thus affecting its service life. If you have any doubts or needs, please come to our website http://m.ymmgjx.net consulting service