电缆防火封堵设计

Clogging Design for Fire Proof of Cables

结合现场的实际情况,介绍了在哪些场所敷设的电缆应采取防火封堵措施;国内常用的三种电缆防火封堵的材料;各种环境下(包括电气室盘柜底部、电缆桥架穿墙洞、电缆桥架穿防火门、电缆竖井内电缆桥架穿楼板孔洞、电缆保护管穿楼板、电缆穿越建筑物的外墙处)的电缆封堵设计。提出了设计和施工过程中切实可行的措施。

Incorporated with the actual situation on-site, that the fire proof clogging measures should be taken for cables laid in what kind of locations and 3 kinds of fire proof clogging materials for cables are introduced. Moreover the cable fire proof clogging design for various environments have been explained, including： for the bottom of cabinet box in the electrical room; the through-opening holes of wall for cable bridge tray; cable bridge tray passing through the fire-proof door; floor through-holes for cable bridge tray in the cable silo, floor through-holes for cable protection pipes; at the external wall for cables to pass through the building. And the feasible measures for design and construction process have been put forward.