The structural cable conductor of a flexible fireproof cable is made of multiple strands of copper wires and has good bending characteristics.
The insulation layer is made of high temperature resistant, non-combustible inorganic mineral insulation material.
The sheath is made of copper material, which has good bending characteristics after special processing and is used as a wire.
The protective layer is made of low-smoke, non-toxic plastic material and has good anti-corrosion properties.
Two models of flexible fireproof cables
Examples represent core and root cross-section flexible fireproof cables.
The example shows a flexible fireproof cable with single core and cross-section.
Example refers to a core, a flexible fireproof cable with one auxiliary wire at the base and a low-smoke halogen-free polyolefin protective outer sheath.
Three Fire Resistance Characteristics of Flexible Fireproof Cables
According to national standards, wire and cable combustion test method fire resistance characteristics test
Select the flame temperature ℃℃, the burning time is, and the line remains intact.
According to British standards, flexible fireproof cables can meet the following requirements
Simple fire resistance level ℃ Fire resistance plus water level ℃ Fire resistance plus mechanical vibration level ℃ The above tests are conducted on the same test in sequence.
Advantages of four flexible fireproof cables
Excellent fire performance, the fire resistance level not only meets the national standard / request ℃, but also meets the three tests specified in the UK: fire resistance level ℃, spray level ℃, impact level ℃
The continuous length is long. Whether it is a single-core or multi-core cable, its length can meet the power supply length needs. The continuous length of each cable can be up to the above. The cross-section of a single-core cable can be up to ?, and the cross-section of a multi-core cable can be up to ?
It is flexible, the cable can be coiled on the cable drum, and its bending radius is the outer diameter of the cable!
It is smoke-free and non-toxic when burned. The insulation is made of inorganic materials and the non-combustible body will not produce any harmful gases when burned, let alone secondary pollution. It can be called an environmentally friendly green product
The cable has a large load capacity. Not only does it have a large carrying capacity, but it also has a large overload capacity. According to the wiring instructions, the surface temperature of the cable is usually ℃. If the wiring cannot be touched and is not in contact with flammable building materials, the temperature of the cable sheath can be increased to ℃. When overloaded, the long-term working temperature of fire-resistant cables can reach ℃
Corrosion occurs. Organic insulated fire-resistant cables sometimes need to wear plastic pipes or iron pipes. Plastic pipes are prone to aging and becoming brittle, while iron pipes are prone to rust. Fire-resistant cables have copper sheaths and do not need to be worn. Pipes and copper sheaths have good corrosion resistance
When electromagnetic interference, fireproof cables and information control lines are laid in the same shaft, under the shielding of the copper sheath, there will be no interference with the information transmitted by the signal control wires and cables.
Good safety, fireproof cables can supply power normally in flames, start fire extinguishing equipment, reduce fire losses, and are particularly reliable for personal safety. Its copper sheath is an excellent conductor and the best grounding wire, and it is continuous to The full length of the cable greatly improves the sensitivity and reliability of grounding protection. It has a long service life. Inorganic insulating materials are resistant to high temperatures and are not prone to aging. Its service life is many times longer than that of organic insulated cables. Under normal working conditions, its The service life can reach more than 10 years
The packaging, transportation, installation and accessories of flexible fire-proof cables are similar to ordinary cables, which are simpler and more economical. Due to the advanced manufacturing technology and simple installation, flexible fire-proof cables can be used under the same conditions. The comprehensive cost is significantly lower than that of mineral insulated cables.
Five electrical characteristics of flexible fireproof cables
Rated voltage
Rated operating voltage light load, heavy load
Rated current single core, multi-core
Insulation resistance Insulation resistance. If the cable length is less than the insulation resistance of the power frequency withstand grade cable and the voltage applied between the phase and phase, and between the phase and the copper sheath, over time, breakdown should not occur.
Six Manufacturing Standards for Flexible Fireproof Cables
The Construction Industry Industry Standard of the People's Republic of China "Metal Sheathed Inorganic Mineral Insulated Cables and Terminals with Rated Voltage and Below".
* Some unscrupulous
manufacturers have appeared on the market using copper tape interlocking armor to fake arc welding threaded copper sheaths. The interlocking armor is not a sealing process and is no different from ordinary steel tape armored cables. It only acts as an external force. As for the protective effect, the fatal point is that it is not waterproof and is easily short-circuited by moisture. It cannot pass various fire tests. Its overall performance is worse than ordinary cables. Relevant units should be careful not to be fooled.
Shengyu Technology, headquartered in Hong Kong, has core experts in R&D, production, management and marketing from Hong Kong Shengyu Technology Development Co., Ltd., and has many years of experience in R&D, manufacturing and marketing of new special cables such as mineral insulated fireproof cables and aluminum alloy cables. It is a comprehensive power solution provider integrating design, R&D and production. In 2016, Hong Kong established a fully automated branch factory in Guangdong Province, Guangdong Shengyu Cable Industrial Co., Ltd.
In recent years, the key projects of our domestic services include large-scale buildings such as Canton Tower, Guangzhou East Tower, Shenzhen Metro, Hainan Meilan Airport, Daya Bay Nuclear Power Plant and so on. Shengyu Technology's marketing and service networks are distributed in many countries, providing the most advanced and reliable products and services to users around the world. Domestically, we have hundreds of sales and service outlets, focusing on product quality and customer experience. Since its establishment, it has accumulated a lot of experience and good reputation. It has been rated as a famous brand product in Guangdong Province and a famous trademark in Guangdong Province.
The mineral insulated cables produced by Shengyu Cable include the following models
Copper sheathed magnesium oxide mineral insulated cables
Isolated flexible mineral insulated cables, fireproof cables
Flexible mineral insulated cables, fireproof cables< br/>Flexible metal sheathed inorganic mineral insulated fireproof cable
Mineral insulated cable models are more complex, please call us for details.