1、產(chǎn)品定義

1. Product Definition

電纜橋架(電纜托架)是由托盤或梯架的直線段、彎通、組件以及托臂(臂式支架)、吊架等構(gòu)成具有密接支承電纜的剛性結(jié)構(gòu)系統(tǒng)之全稱。

Cable tray (cable tray) is a rigid structural system consisting of straight sections, bends, components, as well as support arms (arm brackets), hangers, etc. of trays or ladders that tightly support cables.

2、產(chǎn)品選用要點

2. Key points for product selection

電纜橋架、線槽及其支吊架使用在有腐蝕性環(huán)境中，應采用耐腐蝕的剛性材料制造，或采取防腐蝕處理，防腐蝕處理方式應滿足工程環(huán)境和耐久性的要求。

Cable trays, trunking, and their supports and hangers used in corrosive environments should be made of corrosion-resistant rigid materials or treated with anti-corrosion measures that meet the requirements of engineering environment and durability.

電纜橋架在有防火要求的區(qū)段內(nèi)，可在電纜梯架、托盤內(nèi)添加具有耐火或難燃性能的板、網(wǎng)等材料構(gòu)成封閉或半封閉式結(jié)構(gòu)，并采取在橋架及其支吊架表面涂刷防火涂層等措施，其整體耐火性能應滿足有關規(guī)范或標準的要求。

In sections with fire protection requirements, cable trays can be constructed with enclosed or semi enclosed structures by adding fire-resistant or flame-retardant materials such as plates and nets to cable ladders and trays. Measures such as applying fire-resistant coatings to the surfaces of cable trays and their supports and hangers should be taken, and their overall fire resistance performance should meet the requirements of relevant specifications or standards.

在工程防火要求較高的場所，不宜采用鋁合金電纜橋架。

Aluminum alloy cable trays should not be used in places with high fire prevention requirements.

電纜梯架、托盤寬度和高度的選擇應符合填充率的要求，電纜的梯架和托盤內(nèi)的填充率在一般情況下，電力電纜可取40%~50%，控制電纜可取50%~70%，且宜預留10%~25%工程發(fā)展裕量。

The selection of cable ladder and tray width and height should meet the requirements of filling rate. In general, the filling rate inside the cable ladder and tray can be set at 40%~50% for power cables and 50%~70% for control cables, with a 10%~25% engineering development margin reserved.

在選擇電纜橋架的荷載等級時，電纜橋架的工作均布荷載不應大于所選電纜橋架荷載等級的額定均布荷載，如果電纜橋架的支吊架的實際跨距不等于2m 時，則工作均布荷載應滿足要求。

When selecting the load level of the cable tray, the working uniform load of the cable tray should not exceed the rated uniform load of the selected cable tray load level. If the actual span of the support and hanger of the cable tray is not equal to 2m, the working uniform load should meet the requirements.

各種組件及支吊架在滿足相應荷載的條件下，其規(guī)格尺寸應與托盤、梯架的直線段、彎通系列相匹配。

The specifications and dimensions of various components and supports and hangers should match the straight sections and bending series of pallets and ladders under the corresponding load conditions.

在選擇電纜橋架的彎通或引上、引下裝置時，不應小于電纜橋架內(nèi)電纜較小允許彎曲半徑。

When selecting the bending or leading devices for cable trays, they should not be smaller than the allowable bending radius for smaller cables inside the cable tray.

對于跨距大于6m 的鋼制電纜橋架和跨距大于2m 或承載要求大于荷載等級D級的鋁合金電纜橋架，應按工程條件進行強度、剛度及穩(wěn)定性的計算或試驗驗證。

For steel cable trays with a span greater than 6m and aluminum alloy cable trays with a span greater than 2m or load-bearing requirements greater than load level D, strength, stiffness, and stability calculations or experimental verification should be carried out according to engineering conditions.

幾組電纜橋架在同一高度平行敷設時，各相鄰電纜橋架之間應考慮維護、檢修距離。

When several sets of cable trays are laid in parallel at the same height, maintenance and repair distances should be considered between adjacent cable trays.

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This article is a friendly contribution from Shandong Cable Bridge For more information, please click: http://szrdhz.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.