Shielded Coal Shearer Rubber Cable

Models: MC-0.38/0.66, MCP-0.38/0.66, MCP-0.66/1.14, MCP-1.9/3.3, etc.

Shielded Coal Shearer Rubber Cable is used for mobile power supply and control connections on underground coal-mining equipment such as coal shearers. Its construction combines a multi-stranded oxygen-free copper conductor, special-purpose rubber insulation, metallic shielding and a high-strength rubber sheath. The supplied specifications cover several voltage levels and conductor cross-sections for applications where the cable is exposed to repeated movement, bending, dragging and mechanical contact.

Product Specifications and Technical Parameters Table

Typical Application Conditions

This cable type is intended for underground mobile mining equipment where the power cable may be exposed to continuous movement and mechanical stress. The actual specification should be selected according to equipment voltage, current demand, conductor cross-section, core configuration and installation conditions.

1. Fully Mechanized Coal-Mining Faces

Coal shearers and other mobile equipment require cable constructions that can accommodate repeated movement along the working face. The flexible conductor and rubber sheath are suited to cable routing conditions involving bending, dragging and contact with surrounding equipment.

2. Mobile Underground Electrical Equipment

The cable can also be considered for power and control connections on other mobile mining equipment when its rated voltage, core arrangement and mechanical requirements match the installation. Equipment type and connection configuration should be confirmed before specification.

3. Areas with Electromagnetic Interference

The metallic shielding layer provides a conductive barrier around the cable cores and can help reduce the effect of electromagnetic interference on control and signal circuits. Shielding requirements should be evaluated together with the equipment design and grounding arrangement.

4. Wet, Dusty and Mechanically Demanding Mine Areas

The rubber insulation and outer sheath are intended for underground environments where moisture, dust, dragging and mechanical contact may occur. Cable selection should still take account of the actual water exposure, installation route, temperature and mechanical loading at the site.

Key Technical Considerations

For coal-mine cable selection, electrical ratings alone are not sufficient. The cable construction, installation movement, shielding requirements and environmental conditions should be checked against the equipment and mine layout before ordering.

1. Electrical Rating and Conductor Size

The available voltage range includes 0.38/0.66 kV, 0.66/1.14 kV and 1.9/3.3 kV, with conductor cross-sections listed from 16 mm² to 120 mm² in the supplied specification. The appropriate size depends on the equipment load, allowable voltage drop, cable length and installation conditions.

2. Flexible Construction for Mobile Equipment

Repeated movement places different mechanical demands on a mobile mining cable than on a fixed-installation cable. The multi-stranded copper conductor and rubber construction are intended for applications involving repeated bending and torsion.

3. Shielding for Control and Signal Circuits

The cable incorporates a composite metallic shield using copper-wire braid and fiber. For installations carrying control signals near high-power electrical equipment, the shielding arrangement should be matched with the equipment's grounding and control-system requirements.

4. Sheath Protection

The outer rubber sheath is specified as wear-resistant, oil-resistant, drag-resistant and impact-resistant. These properties are relevant where the cable is routed close to mobile machinery or exposed to repeated mechanical contact.

5. Flame-Retardant Performance

The supplied specification states compliance with MT 386 mining flame-retardant requirements, including self-extinguishing after removal of the flame. Project documentation and the applicable cable specification should be checked when a mine requires specific certification or test records.

Quality and Documentation

For mining cable procurement, technical verification should cover the product model, rated voltage, conductor cross-section, core configuration, electrical test requirements and applicable mining standards. These details provide a practical basis for matching the cable with the equipment and installation conditions rather than selecting solely by nominal voltage.

Qiancheng's cable production and inspection process can be documented according to the applicable product specification and project requirements. Test records, technical parameters and other supporting documents can be reviewed as part of the procurement and acceptance process where required.

Why the Construction Matters in Coal-Mining Applications

1. Flexible Conductor Construction

The multi-stranded oxygen-free copper conductor is intended to accommodate repeated bending and torsion during mobile equipment operation. Conductor size can be selected according to the required electrical load and cable specification.

2. Combined Power and Control Configuration

The supplied specification includes composite power-core and control-core constructions. This configuration can simplify cable routing where both power and control connections are required, subject to the equipment's connection requirements.

3. Metallic Shielding

The shielding structure is relevant to installations where power cables and control circuits operate in the same mobile equipment environment. Its effectiveness depends on the complete system design, including shield termination and grounding.

4. Rubber Insulation and Sheath

Rubber materials are used for both insulation and the outer protective layer. The specified construction provides resistance to extrusion, tearing, wear, oil and impact for the demanding mechanical conditions associated with mobile underground equipment.

FAQ

Q1: What voltage and conductor sizes are available?

A: The supplied specifications cover rated voltages of 0.38/0.66 kV, 0.66/1.14 kV and 1.9/3.3 kV, with conductor cross-sections from 16 mm² to 120 mm². Specific core arrangements and models should be confirmed according to the equipment and application.

Q2: What is the shielding structure used in this cable?

A: The cable uses a composite metallic shield consisting of copper-wire braid and fiber. It is intended to reduce electromagnetic interference affecting circuits within the cable, while the overall shielding performance also depends on correct installation and grounding.

Q3: Where is this type of mining cable normally used?

A: Shielded Coal Shearer Rubber Cable is mainly associated with mobile underground mining equipment and coal-mining working faces. It can be considered for coal shearers and other mobile equipment when the voltage, conductor size, core configuration and mechanical requirements are compatible.

Q4: What should be confirmed before ordering?

A: Confirm the equipment rated voltage, conductor cross-section, number and type of cores, cable length, shielding requirements, installation method and environmental conditions. For mining projects, the required standards, certificates and test documentation should also be confirmed before production or shipment.

Q5: Does the cable have flame-retardant performance?

A: The supplied technical specification states that the cable complies with MT 386 mining flame-retardant requirements and is self-extinguishing after removal of the flame. Any project-specific certification or test requirement should be confirmed against the exact cable model and applicable specification.

Q6: Can Qiancheng provide technical documents for project procurement?

A: Technical parameters and supporting documentation can be provided according to the selected model and project requirements. For a quotation or specification review, it is useful to provide the required voltage, conductor size, core configuration, quantity and application conditions.