电缆桥架采购之前要懂得哪些“选择”要点？下面来进行相关的讲解吧。

What are the key points of "selection" to know before purchasing cable tray? Let's talk about it.

电缆桥架的材料选择：一般分为铁、玻璃钢、铝合金和不锈钢材料，根据不同的施工要求，选择不同的材料。

Material selection of cable tray: it is generally divided into iron, FRP, aluminum alloy and stainless steel materials. Different materials are selected according to different construction requirements.

电缆桥架表面防腐层的选择：防腐层是指表面涂层，一般是指它的厚度，通常用来区分热镀锌和镀锌板。

Selection of anti-corrosion coating on the surface of cable tray: the anti-corrosion coating refers to the surface coating, generally refers to its thickness, which is usually used to distinguish hot-dip galvanized and galvanized sheet.

电缆桥架防火等级的选择：目前我国有标准防火等级，允许供应商出示相关文件。

Selection of fire rating of cable tray: at present, there is a standard fire rating in China, and suppliers are allowed to show relevant documents.

电缆桥架的规格尺寸选择：电缆桥架的施工路线不同，导致规格和尺寸不同。桥梁尺寸是桥梁选择的重要组成部分。通常，在采购商确定具体规格和数量后，供应商可以提供相应的报价。

Specification and size selection of cable tray: different construction routes of cable tray lead to different specifications and sizes. Bridge size is an important part of bridge selection. Generally, after the purchaser determines the specific specification and quantity, the supplier can provide the corresponding quotation.

电缆桥架填充率的选择：电缆梯架、托盘宽度和高度的选择应符合填充率的要求，电缆的梯架和托盘内的填充率在一般情况下，电力电缆可取40%～50%，控制电缆可取50%～70%，且宜预留10%～25%工程发展余量。

Selection of filling rate of cable tray: the width and height of cable ladder and tray shall meet the requirements of filling rate. Generally, the filling rate in cable ladder and tray can be 40% ~ 50% for power cable and 50% ~ 70% for control cable, and 10% ~ 25% engineering development allowance should be reserved.

电缆桥架载荷等级的选择：在选择电缆桥架的荷载等级时，电缆桥架的工作均布荷载不应大于所选电缆桥架荷载等级的额定均布荷载，如果电缆桥架的支吊架的实际跨距不等于2m时，则工作均布荷载应满足要求。各种组件及支吊架在满足相应荷载的条件下，其规格尺寸应与托盘、梯架的直线段、弯通系列相匹配。

Selection of load grade of cable tray: when selecting the load grade of cable tray, the working uniform load of cable tray shall not be greater than the rated uniform load of the selected load grade of cable tray. If the actual span of supports and hangers of cable tray is not equal to 2m, the working uniform load shall meet the requirements. Under the condition of meeting the corresponding load, the specifications and dimensions of various components, supports and hangers shall match the straight-line section and bend series of trays and ladders.

济南电缆桥架的厂家选择：大量采购产品前，一定要注意桥架厂。很多人在做的时候对相关的事情几乎一无所知，这会直接影响到终的购买质量。制造商会对我们造成很大的影响。尤其是在电缆桥架厂批发中，更要了解厂家，才能真正保证质量。

Manufacturer selection of Jinan cable tray: before purchasing a large number of products, we must pay attention to the cable tray factory. Many people know almost nothing about related things when they do it, which will directly affect the final purchase quality. Manufacturers will have a great impact on us. Especially in the wholesale of cable bridge factory, we should know more about the manufacturer in order to truly ensure the quality.

了解桥架厂，必须有很多事实作为依据。很多人在了解这些东西的时候，就完全脱离了客观现实，这对于我们了解厂家和产品是非常不利的。只有更加注重方方面面，才能有更多的选择产品的机会。

To understand the bridge factory, there must be a lot of facts as a basis. When many people understand these things, they are completely divorced from the objective reality, which is very disadvantageous for us to understand the manufacturers and products. Only by paying more attention to all aspects can we have more opportunities to choose products.

在采购电缆桥架的过程中，对所有采购商来说，做好对桥架厂的了解是非常重要的，这样才能真正保证以后采购时不会出现意外情况。有些人在做事的时候不注意对方，直接影响到后期的购买结果。

In the process of purchasing cable tray, it is very important for all purchasers to understand the cable tray factory well, so as to truly ensure that there will be no accidents in future procurement. Some people do not pay attention to each other when doing things, which directly affects the later purchase results.

还要知道不同型号、不同材质的电缆桥架价格差异很大，结构形式的混乱会给施工现场带来散热和机械保护问题。因此，在设计阶段，应要求设计人员根据工程环境特点和技术要求，合理选择电缆桥架的结构特点，并在方案的型号标识和材料清单中明确表达。

We should also know that the prices of cable trays of different models and materials vary greatly, and the confusion of structural form will bring heat dissipation and mechanical protection problems to the construction site. Therefore, in the design stage, designers should be required to reasonably select the structural characteristics of cable tray according to the environmental characteristics and technical requirements of the project, and clearly express them in the model identification and material list of the scheme.

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