How do fireproof cables prevent fire？

date:Mar 12nd,2024

Fireproof cable is a kind of cable wrapped with fireproof materials,mainly used in floors and factories,high-rise buildings,to protect the cable from fire damages.When the cable is on fire,the flame intrudes into the fireproof material of the outer layer of the cable,and is quickly isolated to avoid the direct contact of the flame with the cable core,thus protecting the safety of the cable.

 

There are two main fireproof materials for fireproof cables:

Non-halogen fireproof materials:commonly used silicates,phosphates,organosilicones,chlorosulfonated polyethylene and so on.There fireproof materials have good thermal stability,insulation and fire resistance,whicha can effectively prevent the spread of flame.There are two main fireproof materials for fireproof cables:
Water spray fire extinguishing agent: for closed Spaces such as watertight cable tunnels, cable interlayers, and cable shafts, when a fire occurs, water mist can be quickly sprayed to extinguish the fire, and at the same time, the water mist 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 should be wrapped in a fireproof material so that the cable can be isolated outside in case of fire.
Fire prevention measures such as partitions should be used to separate cables to reduce the spread of fire.
For cables that pass through public areas, such as floors, walls, etc., fire prevention measures such as fire blocking materials need to be used to block the pores around the cable to avoid the spread of fire from the pores.

In short,the fire prevention principle of fireproof cable is to protect the safety of the cable by wrapping a layer of fireproof material in the outer layer of the cable to prevent the flame from contacting the cable core.At the same time,fireproof 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.

The application range of fireproof cables is very wide, in addition to the common floors, factories, high-rise buildings and other places, there are several special places need to use fireproof 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 the power system, 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 internal cable protection of aircraft, rockets, satellites, etc., to protect cables from fire damage.
Railway transportation: In the field of railway transportation, fireproof 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 internal cable protection of nuclear reactors, control systems, communication systems, etc., to protect cables from fire damage.

Fireproof cables have a very wide range of applications and can be used in a variety of places that need to protect cables from fire damage. Choosing the right fireproof cable can ensure the safety of cable equipment in power systems, petrochemical enterprises, aerospace fields, railway transportation fields, nuclear power plants and other places.