Fireproof cable is a cable with an outer layer wrapped with fireproof material. It is mainly used in floors, factories and high-rise buildings to protect cables from fire damage. The fireproof principle of fireproof cables is to wrap a layer of fireproof material on the outer layer of the cable. When the cable catches fire, the flame invades the fireproof material on the outer layer of the cable and is quickly isolated, preventing the flame from directly contacting the cable core, thus protecting the safety of the cable.
There are two main types of fireproof materials for fireproof cables:
Non-halogen fireproof materials: Commonly used ones include silicate, phosphate, silicone, chlorosulfonated polyethylene, etc. These fireproof materials have good thermal stability, insulation and fire resistance, and can effectively prevent the spread of flames.
Water spray fire extinguishing agent: For closed spaces such as watertight cable tunnels, cable mezzanines, and cable shafts, when a fire occurs, water mist can be quickly sprayed to extinguish the fire, and while the water mist cools down, it can also prevent the spread of the fire.
In addition to the above fireproof materials, fireproof cables also need to meet the following requirements:
The outer layer of the cable needs to be wrapped with fireproof material so that the cable can be isolated from the outside in the event of a fire.
Fire prevention measures such as partitions need to be used between cables to separate the cables to reduce the spread of fire.
For cables that pass through public areas, such as floors, walls, etc., fire prevention measures such as fireproof plugging materials need to be used to block the pores around the cables to prevent the fire from spreading from the pores.
In short, the fire protection principle of fire-resistant cables is to protect the safety of the cable by wrapping a layer of fire-resistant material on the outer layer of the cable to prevent the flame from contacting the core wire of the cable. At the same time, fire-resistant cables also need to meet certain fire resistance requirements, insulation performance and thermal stability to ensure that they can be effectively protected in the event of fire.
Fire-resistant cables have a wide range of applications. In addition to common floors, factories, high-rise buildings and other places, there are also the following special places that require the use of fire-resistant cables:
Petrochemical enterprises: In petroleum, chemical and other enterprises, fireproof cables are mainly used in flammable and explosive places such as oil, natural gas and chemical plants to protect cables from fire damage.
Power system: In power systems, fireproof cables are mainly used in important places such as substations and power plants to protect cables from fire damage.
Aerospace field: In the aerospace field, fireproof cables are mainly used for cable protection inside aircraft, rockets, satellites, etc. to protect cables from fire damage.
Railway transportation field: In the railway transportation field, fire-resistant cables are mainly used for cable protection inside railway tracks, signal lines, etc. to protect cables from fire damage.
Nuclear power plant: In nuclear power plants, fireproof cables are mainly used for cable protection inside nuclear reactors, control systems, communication systems, etc. to protect cables from fire damage.
Fire-resistant cables have a wide range of applications and can be used in various places where cables need to be protected from fire damage. Choosing appropriate fireproof cables can ensure the safety of cable equipment in power systems, petrochemical enterprises, aerospace fields, railway transportation fields, nuclear power plants and other places.
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Post time: Oct-19-2023
