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About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
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ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
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Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
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2021
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What are the characteristics of mineral-insulated cables? (Part 1)
Hongsheng: Because mineral-insulated cables are entirely composed of inorganic materials (metallic copper and magnesium oxide powder), they themselves cannot cause fires, cannot burn or support combustion, and have a melting point above 1000℃ due to copper's melting point of 1083℃. Therefore, this type of cable can continue to supply power in fire situations approaching the melting point of copper, making it a truly fire-resistant cable. It can also pass BS6387 C, W, and Z tests.
Mineral Cable Product Characteristics
I. Fire Prevention
Hongsheng: Due to Mineral Insulated Cable Mineral insulated cables are entirely composed of inorganic materials (metallic copper and magnesium oxide powder). They are inherently fire-resistant, incapable of combustion or supporting combustion. Copper's melting point is 1083℃, and the mineral insulation layer also has a melting point exceeding 1000℃. Therefore, this type of cable can maintain power supply even in fires approaching the melting point of copper, making it a truly fire-resistant cable. It also passes BS6387 C, W, and Z tests.
II. Hongsheng: Explosion-proof, Corrosion-resistant
Explosion-proof characteristics: Because mineral insulated cables use a metal sheath as a protective layer, flammable gases, oil vapors, and flames cannot reach the electrical equipment connected to the cable, thus providing explosion-proof characteristics.
Corrosion resistance: Due to copper's excellent corrosion resistance, no additional protection is needed under normal use. In special environments with strong corrosive effects on copper, an additional PVC outer sheath can be added to the cable, ensuring excellent corrosion resistance.
III. Hongsheng : Mineral insulated cables are resistant to mechanical damage, have a long lifespan, and are halogen-free and non-toxic
Mechanical damage resistance: Due to the cable's metal sheath possessing a certain strength and toughness, when the cable is subjected to bending, flattening, or twisting, the relative positions between the cores and between the cores and the sheath remain unchanged, preventing short circuits and not affecting electrical performance.
Long lifespan: Because the cable uses all inorganic materials, it does not age. Its service life can be calculated based on the oxidation rate of the copper sheath. Data shows that for a 0.25mm sheath oxidation at 250℃, it takes 257 years. Mineral insulated cable sheaths typically range from 0.34-1.05mm in thickness, and operating temperatures are below 250℃, resulting in a long lifespan.
Halogen-free and non-toxic: Because the cable is entirely composed of inorganic materials (metallic copper and mineral insulation layer), even at 1000℃, it will not produce smoke, halogens, or toxic gases, making it a truly halogen-free and non-toxic cable.
Mineral cable
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Address: Central Industrial Park, Luqiao District, Taizhou City, Zhejiang Province
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