The cable tray must be used in many projects. If we do not know what problems need to be paid attention to in the installation of the cable tray, the cable tray will be seriously damaged by the environmental impact after installation, and the whole line will be damaged.

我們需要了解電纜橋架的安裝需要對環(huán)境條件進(jìn)行綜合分析 ，一般情況下我們將環(huán)境條件劃分為三種，分別是正常環(huán)境、特殊環(huán)境、以及腐蝕環(huán)境，不同的環(huán)境對電纜橋架的安裝要求也不盡相同。

First of all, we need to understand that the installation of cable tray requires a comprehensive analysis of the environmental conditions. Generally, we divide the environmental conditions into three types: normal environment, special environment and corrosive environment. Different environments have different requirements for the installation of cable tray.

其次，電纜橋架的安裝要注意確定電纜橋架的走向，電纜橋架的安裝確定時(shí)應(yīng)該以多數(shù)電纜的走向?yàn)橐罁?jù)，在室外環(huán)境中走向可以沿著工藝管道，而在室內(nèi)的時(shí)候沿著梁，柱，墻等均可。

Secondly, the direction of cable tray shall be determined during the installation of cable tray. The installation of cable tray shall be based on the direction of most cables. The direction can be along the process pipeline in outdoor environment and along the beam, column and wall in indoor environment.

后，電纜橋架的安裝要注意荷重的計(jì)算，計(jì)算時(shí)需要的數(shù)據(jù)是處于斷面上的電纜單位長度上的重量以及橋架的總荷載量的。后的后也是重要的一點(diǎn)，電纜橋架的安裝需要綜合前三點(diǎn)的條件來進(jìn)行橋架的類型和規(guī)格的確定，選擇時(shí)需要考慮的參數(shù)有立柱的長度以及間距，橋架的層次，托臂的長度等。施工環(huán)境當(dāng)中需要防火要求時(shí)，可以選擇相應(yīng)的防火電纜橋架，防火電纜橋架的整體防火性能要求需要符合有光規(guī)范或標(biāo)準(zhǔn)的要求。這就是對環(huán)境條件進(jìn)行的綜合分析。

Finally, the installation of cable tray should pay attention to the calculation of load. The data required in the calculation are the weight per unit length of cable on the section and the total load of cable tray. The last and most important point is that the installation of cable tray needs to integrate the conditions of the first three points to determine the type and specification of cable tray. The parameters to be considered in the selection include the length and spacing of columns, the level of cable tray, the length of bracket, etc. When fire protection requirements are required in the construction environment, corresponding fire-proof cable tray can be selected. The overall fire performance requirements of fire-proof cable tray shall meet the requirements of national lighting codes or standards. This is a comprehensive analysis of environmental conditions.

選擇電纜橋架的負(fù)載等級時(shí)，橋架的平均工作負(fù)載不應(yīng)大于所選電纜橋架的額定平均工作負(fù)載。電纜橋架支吊架實(shí)際跨度不等于2m時(shí)，平均工作荷載應(yīng)滿足要求。

When selecting the load grade of cable tray, the average working load of cable tray shall not be greater than the rated average working load of the selected cable tray. When the actual span of cable tray supports and hangers is not equal to 2m, the average working load shall meet the requirements.

當(dāng)電纜橋架安裝好后，在需要接通接地主回路時(shí)，應(yīng)該要滿足這些需求。在電纜橋架的兩端處連接的電阻不要大于0.00004歐姆，接地孔需要把絕緣層去電。切斷電源時(shí)，電纜橋架尺寸方向的截面面積不應(yīng)小于規(guī)定值。

After the cable tray is installed, these requirements should be met when the grounding circuit needs to be connected. The resistance connected at both ends of the cable tray shall not be greater than 0.00004 ohm, and the insulating layer shall be de energized at the grounding hole. When cutting off the power supply, the cross-sectional area in the dimension direction of the cable tray shall not be less than the specified value.

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The above is about Shandong cable tray http://m.ymmgjx.net If you have any questions, please call and someone will answer for you.