梯級(jí)式電纜橋架備有護(hù)罩，需求配護(hù)罩時(shí)可在訂購時(shí)注明，其所有配件與托盤式、槽式橋架通用。在梯式橋架的使用過程中，有諸多的注意事項(xiàng)需要大家注意，下面山東電纜橋架廠家為您解說。

Ladder type cable tray is equipped with shield, which can be noted when ordering, and all its accessories are common to tray type and trough type cable tray. In the process of using ladder type cable tray, there are many precautions that should be paid attention to. Below, Shandong cable tray manufacturer will explain them to you.

1、橋架、線槽及其支吊架運(yùn)用在有腐蝕性環(huán)境中，應(yīng)選用耐腐蝕的剛性資料制作，或采納防腐蝕處理，防腐蝕處理方式應(yīng)滿意工程環(huán)境和耐久性的要求。

1. When bridge, trunking and its supports and hangers are used in corrosive environment, they shall be made of corrosion-resistant rigid materials, or adopt anti-corrosion treatment, which shall meet the requirements of engineering environment and durability.

2、橋架在有防火要求的區(qū)段內(nèi)，可在電纜梯架、托盤內(nèi)增加具有耐火或難燃功能的板、網(wǎng)等資料構(gòu)成關(guān)閉或半關(guān)閉式結(jié)構(gòu)，并采納在橋架及其支吊架外表涂刷防火涂層等辦法，其全體耐火功能應(yīng)滿意有關(guān)規(guī)范或規(guī)范的要求。

2. In the section with fire protection requirements, the cable ladder and tray can be added with plates, nets and other materials with fire resistance or flame retardant functions to form a closed or semi closed structure, and the method of painting fire retardant coating on the surface of the bridge and its supports and hangers shall be adopted. All the fire resistance functions shall meet the requirements of relevant specifications or specifications.

3、在工程防火要求較高的場(chǎng)所，不宜選用鋁合金橋架。

3. In places with high fire protection requirements, aluminum alloy bridge should not be used.

4、電纜梯架寬度和高度的挑選應(yīng)契合填充率的要求，電纜的梯架的填充率在一般情況下，電力電纜可取40%～50%，操控電纜可取50%～70%，且宜預(yù)留10%～25%工程開展裕量。

4. The selection of cable ladder width and height shall meet the requirements of filling rate. In general, the filling rate of cable ladder can be 40%~50% for power cables, 50%~70% for control cables, and 10%~25% for project development should be reserved.

5、在挑選電纜梯架的荷載等級(jí)時(shí)，橋架的作業(yè)均布荷載不該大于所選橋架荷載等級(jí)的額外均布荷載，假如橋架的支吊架的實(shí)踐跨距不等于2m時(shí)，則作業(yè)均布荷載應(yīng)滿意要求。

5. When selecting the load level of the cable ladder, the operating uniform load of the bridge should not be greater than the additional uniform load of the selected bridge load level. If the practical span of the bridge's supports and hangers is not equal to 2m, the operating uniform load should meet the requirements.

6、各種組件及支吊架在滿意相應(yīng)荷載的條件下，其標(biāo)準(zhǔn)尺度應(yīng)與托盤、梯架的直線段、彎通系列相匹配

6. Under the condition of satisfying the corresponding load, the standard dimensions of various components, supports and hangers shall match with the straight sections and bending series of trays and ladders

7、在挑選橋架的彎通或引上、引下設(shè)備時(shí)，不該小于橋架內(nèi)電纜小答應(yīng)曲折半徑。

7. When selecting the bending or leading up and down equipment of the bridge, it should not be less than the allowable bending radius of the cable in the bridge.

8、關(guān)于跨距大于6m的鋼制橋架和跨距大于2m或承載要求大于荷載等級(jí)D級(jí)的鋁合金橋架，應(yīng)按工程條件進(jìn)行強(qiáng)度、剛度及穩(wěn)定性的核算或?qū)嶒?yàn)驗(yàn)證。

8. For steel bridges with a span greater than 6m and aluminum alloy bridges with a span greater than 2m or a bearing requirement greater than load level D, the strength, stiffness and stability shall be calculated or verified by experiments according to the engineering conditions.

9、幾組橋架在同一高度平行敷設(shè)時(shí)，各相鄰電纜橋架之間應(yīng)考慮保護(hù)、檢修間隔。

9. When several groups of cable trays are laid in parallel at the same height, protection and maintenance intervals shall be considered between adjacent cable trays.

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