Are the cable manhole doors on each floor locked?

When it comes to cable shaft doors, many people may not be clear. It mainly manages the wires in the general layer, and is used to prevent the flames from escaping from each other when there is a fire inside and outside the pipeline well, which shows its importance. So are the cable manhole doors on each floor locked? Let's take a look at the relevant knowledge together.

A, each floor cable shaft door should be locked?

The cable shaft doors on each floor need to be locked. The purpose of sealing is to prevent the valve from being damaged by collision, to prevent someone from destroying the water meter and heat meter privately, or even opening the heating lock valve privately. According to the relevant regulations, cable wells and pipeline wells in buildings should be blocked with incombustible materials or fireproof plugging materials not lower than the fire resistance limit of this layer; The inspection door on the shaft wall must adopt Class C fire door. Therefore, it must be blocked and must use fire doors.

Second, the cable well building fire protection code requirements

According to the relevant regulations on fire protection in building design, in high-rise buildings, cable wells, pipeline wells, shafts, etc. Should be set independently; The wall should be incombustible, with a fire resistance limit of not less than one hour, and the door should be a Class C fire door; Each floor shall be sealed with incombustible material or fireproof sealing material not lower than the fireproof limit of this floor, and the holes connected between the cable shaft and rooms and walkways shall also be sealed with fireproof sealing material.

Third, how to check the cable?

See whether the high-voltage distribution room and transformer in the community are operating normally; Whether the power supply line of the community is overloaded, check whether there is aging, nudity and other phenomena; Check whether the installation of building meter box and instrument meets the specifications; Whether the floor cable shaft door is locked, and if it cannot be locked, it should be repaired in time; Inflammable articles such as cartons and plastic bottles shall not be stacked in the cable shaft on the floor. If flammable materials are found, they should be cleaned up immediately. Whether the cable in the cable shaft of the building is protected by pipe penetration.

Conclusion: As can be seen from the above, each floor of the cable shaft door needs to be locked. For more information, please keep an eye on Qijia. Com information platform.