电缆的出现很大程度的解决了带长距离输电的问题，有需求就有供求，这是连锁反应，桥架也因此成为非常受欢迎的设备，不过在选购的时候不能盲目的跟从，而是需要我们依据自己的实际需要进行选择。

The emergence of cables has greatly solved the problem of long-distance power transmission. When there is demand, there is supply and demand. This is a chain reaction, and cable trays have become very popular equipment. However, when choosing, we cannot blindly follow, but need to choose according to our actual needs.

电缆桥架选购要点：

Key points for selecting cable trays:

1、母线槽厂家介绍在工程设计中，电缆桥架的布置应根据经济合理性、技术可行性、运行安全性等因素综合比较，以确定合适的方案，还要充分满足施工安装、维护检修及电缆敷设的要求。

1. Bus duct manufacturers introduce that in engineering design, the layout of cable trays should be comprehensively compared based on factors such as economic rationality, technical feasibility, and operational safety to determine a suitable plan. It should also fully meet the requirements of construction, installation, maintenance, and cable laying.

2、电缆桥架水平敷设时距地面的高度一般不低于于2.5m，垂直敷设时距地面1.8m以下部分应加金属盖板保护，但敷设在电气专用房间内时除外。电缆桥架水平敷设在设备夹层或上人马道且低于2.5m，应采取保护接地措施。

2. When the cable tray is laid horizontally, the height above the ground is generally not less than 2.5m. When laid vertically, the part below 1.8m above the ground should be protected with a metal cover plate, except when laid in an electrical dedicated room. When the cable tray is horizontally laid in the equipment interlayer or on the pedestrian walkway and is less than 2.5m, protective grounding measures should be taken.

3、电缆桥架、线槽及其支吊架使用在有腐蚀性环境中，应采用耐腐蚀的刚性材料制造.或采取防腐蚀处理，防腐蚀处理方式应满足环境和耐久性的要求。对耐腐蚀性能要求较高或要求洁净的场所，宜选用铝合金电缆桥架。

3. Cable trays, trunking, and their supports and hangers should be made of corrosion-resistant rigid materials when used in corrosive environments Alternatively, anti-corrosion treatment can be adopted, and the anti-corrosion treatment method should meet the requirements of the environment and durability. Aluminum alloy cable trays are recommended for places with high requirements for corrosion resistance or cleanliness.

4、缆桥架品种的选择分为几种情况，在有易燃粉尘的场所或者是需要屏蔽外部的电气干扰，要采用无孔托盘；高温、腐蚀性液体或油的溅落等需要防护场所，要采用托盘；需要根据情况去组装电缆桥架的时候，可用组装时托盘；除了刚讲的几个情况，其他情况都可以采用梯架。

4. The selection of cable tray types can be divided into several situations. In places with flammable dust or where external electrical interference needs to be shielded, perforated trays should be used; In places where high temperature, corrosive liquids or oil splashes require protection, pallets should be used; When assembling cable trays according to the situation, assembly trays can be used; Except for the situations mentioned earlier, ladder frames can be used in all other situations.