电缆沟防火隔板设置要求

Requirements for setting fire barriers in cable trenches

　　电缆沟防火隔板的设置要求主要包括以下几点：

The requirements for setting up fire barriers in cable trenches mainly include the following points:

　　防火隔板的适用场所：防火隔板主要适用于各类电压等级的电缆在支架或桥架上敷设时的防火保护和耐火分隔，大量应用在发电厂、化工企业、钢铁冶炼企业、矿山等电缆密集场所的电缆工程。

Applicable places for fire barriers: Fire barriers are mainly used for fire protection and fire-resistant separation of cables of various voltage levels when laid on brackets or bridges. They are widely used in cable engineering in cable intensive places such as power plants, chemical enterprises, steel smelting enterprises, and mines.

　　隔板设置间距：对于阻燃电缆，在电缆沟每隔80~100m处设置一个隔断；对于非阻燃电缆，宜每隔60m设置一个隔断。一般设置在临近电缆沟交叉处。

Partition spacing: For flame-retardant cables, a partition should be set every 80-100m in the cable trench; For non flame retardant cables, it is advisable to set up partitions every 60m. It is generally set near the intersection of cable trenches.

　　安装方式：防火墙的安装方式为两侧采用标准厚度的防火隔板封隔、中间采用无机堵料、防火包或耐火砖堆砌，其厚度根据产品的性能而定，一般不小于250mm。

Installation method: The installation method of the firewall is to use standard thickness fireproof partitions on both sides, inorganic blocking materials, fireproof bags or refractory bricks in the middle, and the thickness depends on the performance of the product, generally not less than 250mm.

　　电缆包裹要求：防火墙内的电缆周围必须采用不得小于20mm的有机堵料进行包裹。

Cable wrapping requirements: The cables inside the firewall must be wrapped with organic blocking material not less than 20mm around them.

　　排水孔洞：防火墙顶部用无机防火堵料填平整，并加盖防火隔板，底部必须留有两个排水孔洞，排水孔洞处可利用砖块砌筑。

Drainage holes: Fill the top of the firewall with inorganic fireproof blocking material and cover it with fireproof partitions. Two drainage holes must be left at the bottom, and bricks can be used to build the drainage holes.

　　其他要求：防火隔板应存放在通风干燥处，避免雨淋，运输时应防止雨淋，搬运时应避免损坏。

Other requirements: Fire barriers should be stored in a ventilated and dry place to avoid rain, and should be protected from rain during transportation. Damage should be avoided during handling.

　　以上是电缆沟防火隔板的设置要求，具体设置还需根据实际情况和相关规范进行调整。

The above are the requirements for setting fire barriers in cable trenches, and the specific setting needs to be adjusted according to the actual situation and relevant specifications.

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