Mineral Insulated Cable
01
MI Mineral Insulated Cable Fire-resistant
Application
MI (Mineral Insulated) cables are specifically designed for high-risk and extreme environments, providing unparalleled safety and durability. These cables are widely used in:
Petrochemical plants – Withstand high temperatures and exposure to flammable gases.
Metallurgy & steel industries – Reliable power transmission in extreme heat and molten metal environments.
Power & nuclear energy facilities – Critical for reactor control systems and emergency power supplies.
Mining & tunnels – Fireproof and explosion-resistant, ensuring safe underground operations.
Commercial & high-rise buildings – Essential for emergency lighting, sprinkler systems, and fire alarms.
Airports & transportation hubs – Reliable power for runway lighting, terminals, and security systems.
Hospitals & data centers – Provides stable and interference-free power for life-support and critical IT infrastructure.
Subways & underground facilities – Flame-retardant and waterproof for urban transit safety.
Structure
Conductor: Class 1 solid pure copper
Insulation: Mica tape
Sheath: Pure copper
Features
1. Rated voltage: 450/750V
2. Maximum operating temperature: 250℃
3. Minimum operating temperature: -40℃
4. Standard: IEC 60502
5. Certification: IEC CCC ISO
6. Color: Orange
Advantage
1. Fire Survival & Zero Toxic Emissions – Does not burn, melt, or release harmful fumes in a fire.
2. Long Service Life – Outperforms traditional cables in durability.
3. 100% Waterproof & Moisture-Proof – Can be directly immersed in water without loss of performance.
4. Eco-friendly – No harmful plastic insulation.
5. Cost-effective in the Long Run – Reduces replacement frequency and maintenance costs over time.
6. Withstands Extreme Conditions – Functions in temperatures up to 250°C and resists mechanical damage.
7. Electromagnetic Shielding – Protects against electrical interference, ensuring stable performance.
Specification
| No. Cross-section of conductor | Strands No./Dia. of Conductor | Insulation Thickness ≥ | Insulation Thickness of Mica Tape | Thickness of Copper Sheath | Cable Overall Diameter | Max. D.C Resistance Ω /km | Insulation Resistance | |
| mm2 | pc/mm | mm | mm | mm | Lower Limit (mm) | Copper Conductor | Copper Sheath | Ω /km |
| 3×25+1×16 | 7/2.29+7/1.83 | 0.45 | 0.45 | 0.45 | 21.6±5% | 0.727 | 0.628 | 1000 |
| 3×35+1×16 | 7/2.65+7/2.29 | 0.45 | 0.495 | 0.495 | 23.7±5% | 0.524 | 0.567 | 1000 |
| 3×50+1×25 | 10/2.62+7/2.29 | 0.495 | 0.54 | 0.54 | 24.3±5% | 0.387 | 0.552 | 1000 |
| 3×70+1×35 | 14/2.62+7/2.65 | 0.54 | 0.54 | 0.54 | 28.2±5% | 0.268 | 0.39 | 1000 |
| 3×95+1×50 | 18/2.62+10/2.62 | 0.54 | 0.54 | 0.54 | 32.8±5% | 0.193 | 0.328 | 1000 |
| 3×120+1×70 | 23/2.62+14/2.62 | 0.54 | 0.54 | 0.54 | 37.2±5% | 0.153 | 0.284 | 1000 |
| 3×150+1×70 | 28/2.62+14/2.62 | 0.54 | 0.63 | 0.63 | 38.4±5% | 0.124 | 0.275 | 1000 |
| 3×185+1×95 | 35/2.62+19/2.62 | 0.63 | 0.63 | 0.63 | 41.3±5% | 0.0991 | 0.253 | 1000 |
| 3×240+1×120 | 45/2.62+24/2.62 | 0.63 | 0.63 | 0.63 | 46.2±5% | 0.0754 | 0.224 | 1000 |