MHYVR mining cable is a communication cable designed specifically for mobile devices in coal mines. It has characteristics such as tensile strength, wear resistance, flame retardancy, and anti-static, and is suitable for signal transmission in mining environments.

Key selection points

Number of cores and cross-section:

Control signal: Select 2-core x 0.5mm ².

Multi device communication: Choose 4-core x 0.75mm ² or MHYVR 10 x 2 x 0.5 (10 pairs of twisted pair cables).

Shielding requirements:

Choose MHYVRP (with shielding layer) for strong interference environments (such as near frequency converters).

Mechanical strength:

Choose steel wire armor type (such as MHYV32) for frequently moving scenes.

Installation precautions

Laying environment: Avoid parallel laying with high-voltage cables (spacing ≥ 0.3m) to prevent interference.

Fixed requirement: When hanging and laying, cable hooks should be installed at intervals of 1-1.5m.

Explosion proof connection: The junction box must comply with the Ex d I Mb standard, and the sealing ring should press the cable sheath tightly.

Prohibited behavior:

Continue to use after the sheath is damaged (may generate static sparks).

Excessive bending (may cause the shielding layer to break).

Common faults and solutions

Signal interference: Check if the shielding layer is well grounded (single point grounding).

Broken core fault: Use a multimeter to measure the continuity of each core, and prioritize troubleshooting the joints.

Sheath aging: Regular replacement (recommended for wet underground environments for 5-8 years).