PVC Insulated Mining Power Cable

Models: MVV, MVV22.

PVC Insulated Mining Power Cable (MVV) is a special laying-type mining cable manufactured according to MT/T 818.12-2009 standard. It adopts oxygen-free copper conductor together with flame-retardant PVC insulation and sheath. Rated voltages: 0.6/1 kV, 1.8/3 kV. Specially developed for harsh working conditions in underground and open-pit coal mines, it features flame-retardant and explosion-proof properties with resistance against harsh environments, exclusively for fixed power transmission in mines.

Product Specifications and Technical Parameters Table

Main Application Scenarios

1.Underground coal-mine roadway power distribution

Used for fixed power-transmission lines in main underground roadways and branch roadways to supply continuous power for underground lighting, monitoring, communication equipment and small fixed electromechanical devices. After mass deployment in a roadway-renovation project in Jincheng, Shanxi, the annual line-failure rate dropped by 90 %.

2.Power supply for fixed underground equipment

Suitable for power connection of high-power fixed equipment such as underground water pumps, fans and conveyors. Featuring low loss and high stability, it solves problems of unstable voltage and overheating-caused tripping during long-term equipment operation and guarantees continuous mine production.

3.Open-pit coal-mine ground power-distribution projects

Power transmission for office zones, stockyards, ground electromechanical equipment and temporary power-distribution houses in open-pit mines. UV-resistant, rain-proof and dust-aging-resistant, fit for complex outdoor open-pit conditions.

4.Mining-industry supporting infrastructure projects

Fixed power-cable laying for coal-washing plants, mine residential quarters and supporting mine factories. It is a standardized general-purpose power-supply cable for full-scene and full-zone coal-mine applications.

Core Industry Problems Solved by the Product

Eliminate potential electrical-safety hazards underground

Effectively addresses common defects of ordinary cables such as poor flame retardancy, flame spreading on ignition, heavy-smoke poisoning risk, electric-leakage breakdown, etc. Prevents mine electrical-fire and electric-shock accidents and avoids violations against mine-safety-production regulations.

Solve problems of easy aging and short service life of cables

Targeting common cable failures including sheath peeling, cracking and insulation failure caused by humid, dusty and corrosive mine environments. PVC Insulated Mining Power Cable adopts weather-resistance-enhanced technology to greatly extend service life and reduce frequent-replacement costs.

Resolve large-line-loss and unstable power-supply issues

Improves drawbacks of inferior cables with impure conductors, high resistance, severe heat generation and fast voltage drop. Guarantees stable power supply for long-distance roadways and high-power equipment and lowers equipment-shutdown-failure probability.

Overcome difficulties in project acceptance and incomplete qualifications

Eliminates troubles of non-standard products from small factories lacking valid standards and qualifications that fail mine-safety acceptance. Full-set compliant documents can be provided at any time to facilitate smooth project completion and bidding implementation.

Solve long procurement lead-time and customization difficulties

Leverages in-house factory production capacity and stock reserves to resolve industry pain points including stock-outs for regular specifications, long customization cycles and middle-man markup. Realizes factory direct supply, fast delivery and on-demand customization.

Core Product Advantages

1. Standards and Documentation

The MVV series is manufactured with reference to MT/T 818.12-2009 and GB/T 3956 requirements for the applicable cable construction and conductor. Product documentation can include factory inspection records, electrical test results and flame-retardant test records according to the selected specification and project requirements. The exact standard and document set should be confirmed before delivery when specific mine-safety or project acceptance requirements apply.

2. Process and Quality Inspection

Quality control covers incoming materials, production-stage inspection and finished-cable testing. Key inspection items can include conductor resistance, insulation resistance, voltage withstand, dimensional consistency and flame-retardant performance. Where specific tolerances or test values are required, they should be verified against the technical specification and applicable standard for the selected cable.

3. Manufacturing Capability

Qiancheng operates cable production and testing facilities for power and mining cable products. Production can be arranged according to cable model, conductor cross-section, core configuration, rated voltage and required quantity. For project orders, technical specifications and production requirements can be reviewed before manufacturing.

4. Specification and Supply Flexibility

Regular cable specifications can be supplied according to production availability, while project orders can be reviewed for specific core arrangements, conductor sizes, cable lengths and documentation requirements. Before shipment, the product specification and inspection requirements can be checked against the order information.

5. Application-Specific Selection

The cable construction is intended for fixed power-distribution applications rather than equipment that undergoes continuous dragging and bending. Selection should therefore consider the installation method, mechanical movement, voltage level, load and environmental conditions. For highly mobile mining equipment, a flexible rubber-sheathed mining cable may be more appropriate.

FAQ

Q1: What standard is referenced for the MVV mining cable?

A: The product information references MT/T 818.12-2009 for the applicable mining cable construction and GB/T 3956 for conductor requirements. The exact applicable standard and supporting documents should be confirmed according to the selected model and project specification.

Q2: What voltage and conductor sizes are available?

A: The listed MVV specifications include rated voltages of 0.6/1 kV and 1.8/3 kV, with single-core, 3-core and 3+1 core configurations available according to the technical data. Conductor cross-sections can range from 1.5 mm² to 120 mm² depending on the specified construction.

Q3: Is this cable suitable for wet underground environments?

A: The cable can be considered for fixed installations in underground areas where moisture, dust and other environmental factors are present, provided the selected construction meets the site's requirements. Water exposure, temperature, chemical contact and installation conditions should be checked during cable selection rather than assuming the same specification is suitable for every mine environment.

Q4: Can it be used on coal shearers or other continuously moving equipment?

A: It is generally intended for fixed power-distribution applications. Coal shearers and other equipment involving continuous dragging, bending or torsion normally require a flexible mining cable construction specifically designed for mobile service.

Q5: What information is needed when requesting a quotation?

A: Provide the required rated voltage, conductor cross-section, core configuration, cable length, quantity, installation method and application equipment. If the project requires specific mining certificates, inspection reports or other technical documents, these requirements should also be included.

Q6: What should be checked before accepting the cable?

A: The product model, rated voltage, conductor size, core configuration and cable length should first be checked against the purchase specification. Depending on the project, inspection may also cover conductor resistance, insulation resistance, voltage withstand, flame-retardant performance and the required documentation.

For fixed mine power-distribution systems, PVC Insulated Mining Power Cable should be selected according to the electrical load, installation method and environmental conditions. Where the installation involves continuous equipment movement, the cable construction should be reviewed separately to ensure that its mechanical characteristics match the application.