4×0.5mm² WD-MKYJYP-450/750V Mining Control Cable (Tianlian Brand) Technical Analysis
Section 1: Model and Specifications


Model: WD-MKYJYP-450/750V


WD: Halogen-Free and Low-Smoke (light transmittance ≥60% during combustion, no corrosive gases)
MK: Coal Mine (Complies with MT 818 Mining Standards)
YJYP: Cross-linked polyethylene insulation (XLPE) + copper foil shielding (P).


Conductor: 4-core × 0.5mm² oxygen-free copper braided soft conductor (Class 5), DC resistance ≤ 39.0Ω/km.


Section II: Performance


Electrical Parameters


Rated voltage 450/750V, withstand voltage ≥2000V for 5 minutes without puncturing.
Insulation resistance ≥ 500 MΩ·km (at 20°C).


Shielding and Interference Resistance


Copper tape shield (coverage ≥85%), electromagnetic interference resistance ≥60dB.


Environmental adaptability


Operating Temperature: -40℃ to +90℃
Flame Retardant Grade: Passed the A-Type Cabled Combustion Test (self-extinguishing time ≤ 30 seconds).
Section 3: Application Scenarios
Coal Mine Automation: PLC control loops, gas monitoring signal transmission.
Industrial Control: High anti-interference requirements in fields such as petrochemicals and metallurgy.