Rigid Mineral Insulated Cable, 1 core × 185 mm², rated voltage 750 V. Standard: Manufactured in accordance with GB/T 13033.1 and IEC 60702-1 (mineral insulated cables). Applications: Fire-critical and high-temperature wiring — fire alarm and emergency lighting circuits, industrial furnaces, boiler rooms and nuclear power plants; where the cable must continue operating in a fire. Characteristics: Magnesium oxide (MgO) insulation in a seamless copper sheath is completely incombustible, operating at high temperatures up to the melting point of copper; very high current density; resistant to oil, water and fire; requires sealed terminations. Technical parameters: 1 core × 185 mm² copper conductor, rated voltage 750 V.