Mining Cable 0.66/1.14kV MCPTJ Type Rubber Sheath Flexible Power Cable for Coal Mine Equipment

Product Overview:

Designed for the extreme demands of underground and open-pit coal mining operations, this series of flexible rubber-sheathed mining cables provides reliable power transmission and connection for mobile mining machinery operating in harsh environments. Subjected to mechanical stress, abrasion, moisture, corrosive agents, extreme temperatures (-35°C to +65°C), and explosive atmospheres, these cables are engineered to meet stringent safety and performance standards for coal mining applications.

Key Applications:

• Power connection for underground mobile coal mining equipment (coal cutters, shearers, continuous miners, etc.)

• Power supply connection for underground mobile transformers.

• Powering and controlling various mobile coal mining machinery operating under demanding conditions.

Core Construction & Materials:

1. Conductors: High-purity copper or aluminum conductors, finely stranded for maximum flexibility.

2. Conductor Separator: A suitable non-hygroscopic tape separator is applied over the conductors.

3. Insulation: Rubber, XLPE (Cross-Linked Polyethylene), or PVC insulation, selected based on specific cable model and voltage rating, providing excellent electrical properties and durability.

4. Screening/Shielding (Model Dependent): Select models (MCP, MCPT, MCPTJ, MYP, MYPT, MYPTJ) feature metallic screens (copper wire braid or semi-conductive layers) for enhanced EMI protection and grounding capability. Models like MYPTJ include dedicated monitoring cores.

5. Outer Sheath: Tough, flame-retardant chloroprene rubber (CR) or equivalent rubber compound sheath. Provides superior resistance to mechanical abuse, abrasion, oils, chemicals, moisture, and flames. The rubber sheath ensures flexibility for frequent movement and re-positioning of equipment.

Key Properties & Performance:

• Rated Voltages (Uo/U): 0.38/0.66 kV, 0.66/1.14 kV, 1.9/3.3 kV (Model and construction dependent).

• Operating Temperature Range: -35°C to +65°C.

• Flame Retardancy: Meets critical flame propagation and self-extinguishing standards for coal mine safety.

• Flexibility: Highly flexible construction allows for easy handling, routing, and frequent movement with mining equipment ("can be shifted as you like").

• Mechanical Robustness: Resistant to crushing, impact, cutting, and abrasion inherent in mining operations.

• Environmental Resistance: Resists moisture, oils, chemicals, and UV degradation (Note: Yellow sheath variants require protection from prolonged direct sunlight exposure).

• Minimum Bending Radius: ≥ 6 times the overall cable diameter.

Common Models & Typical Applications:

Technical Parameters (Select Examples):

MC / MCP - 0.38/0.66 kV Mining Cable:

MCP - 0.66/1.14 kV Mining Cable (A=3 Power + 1 Earth / B=3 Power + 3 Earth/Control + 1 Earth):

MCP - 1.9/3.3 kV Mining Cable (A=3 Power + 1 Earth / B=3 Power + 3 Earth/Control + 1 Earth):

Engineering Selection Guidance:

• Select the appropriate model (MC, MCP, MCPTJ, MY, MYP, MYPT, MYPTJ, MYQ) based on required shielding, monitoring cores, and specific equipment type (e.g., coal cutter, mobile transformer, lighting).

• Choose the voltage rating (0.38/0.66kV, 0.66/1.14kV, 1.9/3.3kV) matching the equipment's supply voltage.

• Select the conductor cross-sectional area (mm²) based on the current carrying capacity required by the load and applicable derating factors (ambient temperature, grouping, etc.).

• Choose the core configuration (e.g., 3 Power + 1 Earth, 3 Power + 3 Earth/Control + 1 Earth) as required by the equipment and control system.

• Ensure the cable's minimum bending radius and temperature range are suitable for the installation environment and routing.

• Always adhere to relevant national and international standards (e.g., IEC, GB, MSHA) for mining cable selection and installation.

This robust cable series is essential for safe and efficient power distribution within the challenging coal mining industry, offering flexibility, durability, and critical flame-retardant properties.