Technical Analysis of 37×1.0MKVV-450/750V Mining Control Cable
I. Model Definition and Structure


Model breakdown


37×1.0: 37-strand conductor, single-core cross-sectional area of 1.0mm², suitable for multi-loop control signal transmission.
MKVV‌：
Coal mine cables (compliant with MT/T 386-2011 standard)
K: Control Cable
VV: Polyvinyl Chloride (PVC) Insulation and Sheath.


Structure


Conductor: Oxygen-free copper stranded conductor (Class 5), DC resistance ≤ 18.1 Ω/km (20℃).
Insulation: Made of PVC material, thickness ≥ 0.6mm, withstanding temperature range of -40℃ to +70℃.
Housings: Flame-retardant PVC (Oxygen Index ≥28), thickness ≥1.2mm, corrosion-resistant.
II. Key Performance Parameters
Electrical Performance: Rated voltage 450/750V, withstand voltage ≥2000V for 5 minutes without breakdown under industrial frequency.
Flame Retardancy Level: Passed A-Type Cigarette Ignition Test (self-extinguishing time ≤ 30 seconds)
Mechanical properties: Static bend radius ≥ 6 times the outer diameter, dynamic ≥ 12 times.
Section 3: Application Scenarios
Coal Mine Underground: Ventilation system, elevator control circuit, and sensor signal transmission.
Industrial Environment: Fixed installations requiring interference resistance, such as metallurgy, petrochemical industries, etc.