In recent years a variety of flame retardant, fire-resistant, high-temperature resistant fire-fighting cables have been developed in China and have achieved certain results.
These cables do not spontaneously combust, have a certain fire-resistant role, in the fire can maintain a certain amount of power, and communication time, but these cables also have a great shortage, like the cable in the fire will emit toxic gases and smoke affecting vision, etc., in the evacuation and rescue of personnel to win time while also bringing fatal injuries to personnel.
To this end, the technology development unit organized relevant technical personnel to understand the use of fire cables in the affected areas, through the analysis of the cable, and combined with the customer's fire requirements for fire cables, from the structure and process way to design a novel, unique low smoke halogen-free ultra-fire retardant ultra-flame resistant anti-sprinkler water and heavy falling impact fire cable, the fire resistance level to more than 950 ℃, and to meet the cable in the fire In the low smoke halogen-free requirements at the same time, but also simulate the scene environment to increase the cable in the fire to withstand the spray water and the outside heavy mechanical impact of the ability to create conditions for personnel to escape and fire rescue work.
In the event of a fire, ordinary PVC-insulated cables produce thick black smoke and toxic gases of hydrochloric acid gas, and such lethal damage greatly hinders rescue operations.
In contrast, flame retardant cables have special flame retardant properties, specifically low smoke generation and toxic smoke suppression properties, which also ensure human breathing safety and rescue speed in the event of a fire.
Application
This product is suitable for fixed laying in AC 50Hz, a voltage level of 1kV, and below transmission and distribution lines for the transmission of electrical energy.
Mainly used in hotels, banks, hospitals, factories, commercial and residential integrated wiring, and other occasions with high flame retardant requirements.
Low smoke and halogen-free, abbreviated as LSZH, LSOH, LS0H, LSFH, and OHLS, is the material classification for wire sheathing in the wire and cable industry.
Low smoke zero halogen wire sheathing is composed of thermoplastic or thermosetting materials that have low smoke emissions when heated and do not contain halogen.
Most network cable coverings are made of polyethylene, polyvinyl chloride, or thermoplastic polyurethane.
In the event of a fire, plastics containing chlorine will release toxic hydrogen chloride, which will produce hydrochloric acid when it meets water.
Low-smoke halogen-free materials do not release hydrogen halides or other acids when they catch fire.
Application
For example, in the railroad industry or shipbuilding industry, one of the most important requirements is to protect personnel and equipment from exposure to toxic and corrosive gases, and in these cases, the use of low smoke and halogen-free materials is required for the outer layer of wires and cables.
Safety fire power cable is an improvement of the traditional fire cable, greatly solving the cable in fire is easy to produce toxic gases, and smoke and can not withstand the spray of water and external heavy mechanical impact of the fatal weaknesses of the cable, the cable because of the rigorous design of the structure, not only for military defense and other high-end fields but also in civilian applications have excellent market prospects for development.