電纜溝防火隔板設置要求

Requirements for setting fire barriers in cable trenches

　　電纜溝防火隔板的設置要求主要包括以下幾點：

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

　　防火隔板的適用場所：防火隔板主要適用于各類電壓等級的電纜在支架或橋架上敷設時的防火保護和耐火分隔，大量應用在發電廠、化工企業、鋼鐵冶煉企業、礦山等電纜密集場所的電纜工程。

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.

　　隔板設置間距：對于阻燃電纜，在電纜溝每隔80~100m處設置一個隔斷；對于非阻燃電纜，宜每隔60m設置一個隔斷。一般設置在臨近電纜溝交叉處。

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.

　　安裝方式：防火墻的安裝方式為兩側采用標準厚度的防火隔板封隔、中間采用無機堵料、防火包或耐火磚堆砌，其厚度根據產品的性能而定，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.

　　電纜包裹要求：防火墻內的電纜周圍必須采用不得小于20mm的有機堵料進行包裹。

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：防火墻頂部用無機防火堵料填平整，并加蓋防火隔板，底部必須留有兩個排水孔洞，排水孔洞處可利用磚塊砌筑。

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：防火隔板應存放在通風干燥處，避免雨淋，運輸時應防止雨淋，搬運時應避免損壞。

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.

　　以上是電纜溝防火隔板的設置要求，具體設置還需根據實際情況和相關規范進行調整。

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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