Introduction to Fireproof Cables

Fireproof cable is a common type of wire and cable among many types, which is actually a general term for wires and cables with fire resistance performance. Specifically, it can be divided into two types: fire-resistant and flame-retardant. At present, the widely used fireproof cables mainly include UL series flame retardant cables and flame retardant Low smoke zero halogen cables.

Fireproof wires are actually another type of fire-resistant wire. It is composed of copper as the conductor core, seamless copper tube as the sheath, and inorganic mineral magnesium oxide as the insulation material

requirement

1. The outer layer of the cable needs to be wrapped with fireproof materials to isolate it from the outside in case of fire.

2. Fire prevention measures such as partitions need to be adopted between cables to separate them and reduce the spread of fire.

3. For cables crossing public areas, such as floors, walls, etc., it is necessary to use fire blocking materials and other fire prevention measures to block the pores around the cables to avoid the spread of fire from the pores.

In short, the fire prevention principle of fire-resistant cables is to wrap a layer of fire-resistant material around the outer layer of the cable to prevent flames from touching the cable core, thereby protecting the safety of the cable. 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 case of fire.

Fire prevention principle

Fireproof cables are wrapped with a layer of fireproof material on the outer layer of the cable. When the cable catches fire, flames invade the fireproof material on the outer layer of the cable and are quickly isolated, avoiding direct contact with the cable core, thus protecting the safety of the cable.

Fireproof materials

Non halogen fire-resistant materials: commonly used include silicates, phosphates, organosilicon, chlorosulfonated polyethylene, etc. These fireproof materials have good thermal stability, insulation, and fire resistance, which can effectively prevent the spread of flames.

Water spray extinguishing agent: For enclosed 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 while the water mist cools down, it can also prevent the spread of the fire.

Application scope

The application range of fireproof cables is very wide. In addition to common floors, factories, high-rise buildings and other places, there are also several special places that require the use of fireproof cables:Petrochemical enterprises: In petroleum, chemical and other enterprises, fire-resistant 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 Electrical substation, power plants and other important places to protect cables from fire damage.

Aerospace field: In the aerospace field, fire-resistant cables are mainly used for cable protection inside 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 track, 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.

In short, the application range of fireproof cables is very wide, and they can be used in various places that need to protect cables 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.