很多电气施工方进场第一反应是“买非常便宜的钢制槽式，先布上再说”。等消防验收卡在防火封堵、地下车库桥架一年生锈、铝合金桥架碰上腐蚀性废气直接发白脱皮，才知道桥架不是“铁皮槽子”，而是整个配电系统的骨架。

Many electrical construction companies' first reaction upon entering the site is to 'buy the cheapest steel trough type and lay it out first'. Only when the fire inspection is stuck in the fireproof sealing, the underground garage bridge rusts for a year, and the aluminum alloy bridge directly turns white and peels off when it comes into contact with corrosive exhaust gas, do we know that the bridge is not a "metal trough", but the skeleton of the entire power distribution system.

先按工况定材质：

First, determine the material according to the working conditions:

普通厂房/楼宇：热浸锌钢制桥架性价比高，但潮湿环境不防腐；

Ordinary factories/buildings: hot-dip galvanized steel cable trays have high cost-effectiveness, but they are not corrosion-resistant in humid environments;

地下车库/污水厂/沿海项目：用不锈钢或玻璃钢，别拿冷镀锌硬扛氯离子；

Underground garage/sewage treatment plant/coastal project: Use stainless steel or fiberglass, do not use cold galvanized hard resistant chloride ions;

数据中心/洁净车间：铝合金桥架轻、不导磁、美观，但忌接触强碱和未做绝缘处理的铜铝直接接触；

Data center/cleanroom: Aluminum alloy cable trays are lightweight, non-magnetic, and aesthetically pleasing, but avoid direct contact with strong alkali and copper aluminum that has not been insulated;

化工/酸碱环境：复合环氧树脂桥架贵得有道理，层间绝缘+整体防腐，寿命能差出一倍。

Chemical/acid-base environment: Composite epoxy resin bridge is reasonably expensive, with interlayer insulation and overall anti-corrosion, and the service life can be doubled.

结构也别瞎选：梯式散热好、适合大截面动力电缆；槽式封闭强、适合控制电缆和明装美观；托盘式介于中间。很多项目“梯式里塞满控制线”，结果电磁干扰、散热双翻车。

Don't blindly choose the structure: ladder style heat dissipation is good, suitable for large section power cables; Strong slot closure, suitable for controlling cables and aesthetically pleasing surface installation; The tray type is in the middle. Many projects are filled with control lines in a ladder style, resulting in electromagnetic interference and heat dissipation double overturning.

安装端非常容易被罚钱的，是防火封堵——穿墙、过防火分区不填防火包+防火泥+防火板，火情时桥架直接变“导火筒”。还有支架间距、接地跨接、转弯半径，国标JB/T10216、GB50303里都有硬数，不是“师傅说差不多”就行。

The installation end is most likely to be fined for fireproof sealing - if passing through walls or fire compartments without filling fireproof bags, fireproof mud, and fireproof boards, the bridge will directly become a "fuse" in case of a fire. There are also hard numbers in the national standards JB/T10216 and GB50303, such as bracket spacing, grounding jumper, and turning radius. It's not just about "the master says it's about the same".

采购时别只比吨价，要看：板厚是否负差、锌层重量、弯通是不是整料折弯、有没有第三方盐雾报告。山东本地项目选有自有产线+能出检测的厂家，翻单补货尺码才对得上，别等二期工程颜色锌层全变样。

When purchasing, don't just compare the price per ton, but also consider whether the thickness of the plate is negative, the weight of the zinc layer, whether the bending is done as a whole, and whether there is a third-party salt spray report. The local project in Shandong has its own production line and a manufacturer that can provide testing. Only by flipping through orders and restocking can the size match. Don't wait for the second phase of the project to fully change the color and zinc layer.

本文由山东电缆桥架友情奉献.更多有关的知识请点击:http://www.sdhangfeng.com我们将会对您提出的疑问进行详细的解答，欢迎您登录网站留言.

This article is a friendly contribution from Shandong Cable Bridge For more information, please click: http://www.sdhangfeng.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message