北京电缆桥架的设计标准及安装注意事项

北京电缆桥架的设计标准及安装注意事项

一、北京电缆桥架的设计标准是什么

北京电缆桥架首先应屏蔽电器干扰的电缆网路，或有防护外部(如：易燃粉尘、腐蚀液体等环境)影响要求的，应选用槽式复合型防腐屏蔽电缆桥架。当处于强腐蚀性环境时，应采用复合环氧树脂防腐阻燃型电缆桥架。托臂、支架也应选用同类材料，以提高电缆桥架及其附件的使用寿命，电缆桥架在容易积灰和其它需遮盖的环境或户外场所时宜加盖板加以保护。 除上述情况外，还可以根据现场环境及技术要求选用托盘式、槽式、梯级式、玻璃防腐阻燃电缆桥架或钢质普通型桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。 在公共通道或户外跨越道路段，底层梯级的底部宜加垫板或在该段使用托盘。用于大跨距时，可根据用户要求提高桥架的载荷能力或选用桁架。大跨距(>3m)宜选用复合型桥架。

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二、北京桥架的安装注意事项

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