MI heating cable (heating cable|insulated cable|mineral insulated cable|armored MI heating cable) is manufactured using single or multiple alloy heating wires as the heat source, high-purity, high-temperature, electrically fused crystalline magnesium oxide as the thermal conductive insulator, and seamless continuous stainless steel or copper tube as the sheath, produced by special manufacturing processes. For places with strong corrosion, an outer jacket of PE or low-smoke halogen-free material can be added. Basic information Chinese name MI heating cable Foreign name MIjiaredianlan Principle Single or multiple alloy heating wires as heat source Product classification Stainless steel sheath mineral insulated heating cable Length ±2% Insulation resistance Finished test —100MΩ500VDC Contents 1 Product classification 2 Electrical performance 3 Product features 4 Main uses 5 Application areas Product classification ● Stainless steel sheath mineral insulated heating cable The stainless steel sheath series mineral insulated heating cable can meet the needs of high-temperature conditions and high heating power (up to 269W/m). The maximum withstand temperature of the stainless steel sheath heating cable supplied by Aoqi Electric can reach 600°C, with conductor resistance ranging from MI heating cable 28000-19.2Ω/km. The mineral insulated cable has excellent mechanical strength and corrosion resistance. ● Copper sheath mineral insulated heating cable The copper sheath series mineral insulated heating cable can meet the needs of high-temperature conditions and long-distance pipeline heat tracing. The maximum withstand temperature of the copper sheath heating cable supplied by Aoqi Electric can reach 250°C, with conductor resistance ranging from 480-0.5Ω/km. For applications requiring corrosion protection or buried installation, a high-density polyethylene HDPE outer sheath (MIHC) is needed. The maximum withstand temperature of MIHC can reach 90°C. The mineral insulated cable has excellent mechanical strength. ● Copper-nickel alloy sheath mineral insulated heating cable The copper-nickel alloy sheath mineral insulated heating cable can meet the needs of high-temperature conditions and long-distance pipeline heat tracing. The maximum withstand temperature of the copper-nickel alloy sheath heating cable supplied by Aoqi Electric can reach 400°C, with conductor resistance ranging from 28000-19.2Ω/km. The mineral insulated cable has excellent mechanical strength and corrosion resistance. Electrical performance 1. Length: ±2% 2. Resistance tolerance: ±10% 3. Voltage withstand: Heating cable withstand voltage: 1500VAC/1min 4. Insulation resistance: Finished test - 100MΩ500VDC 5. Impermeability: After the entire cable (including joints) is immersed in water for 12 hours, the insulation resistance shall not be less than 100MΩ/500VDC Product performance MI heating cable, due to its inorganic structure, has long life, is not easy to age, has high compressive strength, and because its outer sheath is metal, it will not age during long-term operation and can operate at high temperatures for a long time. Therefore, MI cable mineral insulated high-temperature heating cable has unique advantages. 1. Fireproof: The constituent materials of MI cable are all inorganic, so the cable cannot burn, cannot support combustion, and does not release toxic or harmful gases at high temperatures. 2. Explosion-proof: MI cable is a solid structure composed of seamless metal sheath and tightly compacted mineral insulation material, fundamentally preventing the intrusion of flammable oil, gas, and flames. It is a truly explosion-proof cable. 3. Corrosion-resistant: The sheath of MI cable is a seamless metal sheath. When selecting, the appropriate metal outer sheath can be chosen according to the actual working conditions, fundamentally avoiding cable corrosion. 4. Impermeable: The sheath of MI heating cable is a seamless metal sheath, so neither liquid nor gas can penetrate the cable interior. 5. Radiation-resistant: The constituent materials of MI heating cable are all inorganic, so all performance indicators of the cable remain unchanged when working in radiation environments. 6. Long life: The characteristics of the constituent materials of MI heating cable determine that there is no problem of insulation aging, and it has long-term stability. 7. Good flexibility: MI heating cable is softened during manufacturing, has excellent flexibility, and can be bent freely. It can be laid in narrow spaces and on irregularly shaped equipment, providing great convenience for installation and construction, and the line looks beautiful after installation. 8. High mechanical strength: Due to the inherent characteristics of the MI heating cable structure, the cable can withstand severe mechanical damage and can still work normally even when the cable diameter is deformed by one-third. 9. Because the heating method of this cable is a series-connected resistive heating element, the heating is uniform, and the temperature difference along the entire length is very small. 10. High heating power, generally 50W/M~250W/M. Unlike steam heating pipelines, this cable does not risk freezing due to steam supply interruption. It can be used by simply turning on the power when needed, and does not require frequent maintenance. 11. Low-temperature resistance: It does not become brittle during low-temperature construction, making it easy for winter construction and maintenance. 12. Low engineering cost: MI cable mineral insulated high-temperature heating cable has a small volume, so it does not increase the amount of insulation material during laying, and eliminates the need for steam and water heating boilers and water treatment systems. Construction is convenient and fast, directly reducing engineering costs. 13. Low operating cost: The heating system composed of MI cable mineral insulated high-temperature heating cable can achieve remote control, telecontrol, and automatic control. Through the temperature control part, it can ensure accurate and timely supply of the required heat to the heated object, so there is no additional heat loss or redundant operators, ensuring low operating costs. 14. Low maintenance cost: The heating system composed of MI cable mineral insulated high-temperature heating cable has a simple structure, long life, and high reliability, reducing the number of components and time required for maintenance. In environments that are not particularly harsh, it can even be used normally without maintenance. In summary, mineral insulated heating cables have incomparable advantages over various previous heat tracing technologies and methods in harsh environments such as explosion-proof, fireproof, waterproof, corrosion-resistant, and radiation-resistant, as well as replacing traditional steam and water heat tracing. Main uses 1. Container heating, process pipeline insulation, tank heat tracing, crude oil pipeline wax removal and plugging in the petrochemical industry. 2. Heating and insulation of large-area buildings, factory and warehouse insulation, agricultural greenhouse heating, constant temperature control, poultry farming heating. 3. Outdoor equipment and facilities in cold regions: mechanical equipment, runways, TV transmission towers, culverts, valves, gates, transportation hub facilities, schools, outdoor steps, intermittent liquid pumps. 4. Anti-condensation on oil platforms and ocean-going ship decks, cabin heating, fluid pipeline heating and insulation, mechanical equipment insulation. 5. Combustion preheating devices: nuclear power plant reactor preheating, fuel oil boiler preheater, gas device preheater. 6. Runways, railway tracks, switches, and other places requiring heating and insulation. MI heating cable maximum output power (W/m) Metal gutters and downspouts anti-freeze 49 Non-metal gutters and downspouts anti-freeze 16 Containers and pipelines Process temperature maintenance 100 Metal containers and pipelines anti-freeze 59 Road snow melting 80 Application areas MI cable mineral insulated high-temperature heating cable application areas Due to its fireproof, waterproof, explosion-proof, overload-resistant, non-aging, radiation-resistant, mechanical damage-resistant, high power characteristics, wide temperature range, easy installation, and ability to achieve remote control and automatic control, MI heating cable can be widely used in the following fields: 1. MI heating cable pipeline insulation and anti-freeze system uses extremely reliable electric heating technology to heat pipelines, fluids, or other process equipment that require insulation and anti-freeze, supplementing the heat lost by the fluid, and controlling its temperature within the allowable range. It is suitable for various pipeline systems and process equipment, valves, and tank anti-freeze treatment and temperature maintenance. For example: building water supply and drainage pipelines, domestic hot water pipelines, oil pipelines, and other high-viscosity liquid pipelines in the chemical and food industries. 2. MI heating cable snow melting and de-icing system can be used for snow melting and de-icing of outdoor facilities such as ramps, bridges, roadways, sidewalks, parking lots, and outdoor stairs, ensuring pedestrian safety. This system is suitable for special pavements such as asphalt, concrete, and brick tiles. The inconvenience caused by winter ice and snow to pedestrians and vehicles, as well as damage to buildings, will no longer exist. Especially when installed on blind paths, it provides safety assurance for blind people traveling in winter. The snow and ice in the area where this system is laid can be cleared at any time, avoiding the hazards caused by large amounts of salt spreading, manual snow shoveling, and frost. Traffic accidents are reduced, and the safety of pedestrians and vehicles is improved. 3. MI heating cable soil heating system can prevent soil freezing and keep grass green. Maintenance and repair costs are low, and it is safe and reliable. Suitable for soil heating in sports fields, four-season squares, and garden lawns, without damaging the natural green environment, minimizing damage to established lawns. Installation and use costs are very economical, saving expenses for seeding and maintenance, allowing the lawn to be restored in a short time. 4. MI heating cable products are also particularly suitable for insulation and heating places in flammable and explosive areas, high-radiation areas, and places where maintenance and replacement are inconvenient but reliable long-term use is required. 5. Railway track and switch snow melting system consists of a control center, control cabinet, environmental detection device, electric heating element, isolation transformer, connecting cables, and channels. Suitable for various types of switch snow melting needs. When snowfall or temperature changes occur, the system can automatically or manually start the electric heating snow melting circuit to ensure normal switch operation. The system is suitable for three-phase and single-phase power supply, can be centralized or distributed, has low maintenance workload, and the electric heating element installed on the switch has a service life of more than ten years.