Models: MYP, MYPT.
Mining Flexible Shielded Rubber Cable is a flexible rubber-sheathed cable for mobile electrical equipment used in underground mining. The supplied product specification references MT/T 818.7-2009 and combines a multi-stranded copper conductor, special-purpose rubber insulation, copper-wire braided shielding and a high-strength rubber sheath. The construction is intended for applications involving repeated bending, dragging, torsion and exposure to dust, moisture and mechanical contact.
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Parameter Category |
Parameter Item |
Technical Index |
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Structure Configuration |
Conductor Material |
High-purity oxygen-free copper, multi-stranded flexible conductor, resistant to repeated bending and torsion |
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Conductor Cross-section |
10 mm²～150 mm² |
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Insulation Layer |
Special-purpose rubber insulation, extrusion-resistant and tear-resistant |
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Shielding Layer |
Copper-wire braided shield, shielding coverage ≥85 % |
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Outer Sheath |
High-strength rubber sheath, wear-resistant, oil-resistant, drag-resistant and impact-resistant |
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Core Configuration |
Composite power-plus-control cores; multiple multi-core combinations optional |
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Electrical Performance |
Rated Voltage |
0.66/1.14 kV |
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Insulation Resistance @20℃ |
≥100 MΩ·km |
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Power-frequency Voltage Withstand |
Pass AC test specified by MT818, no breakdown after 5-minute withstand |
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Conductor DC Resistance |
Meets requirements of MT 818 or GB/T 12972 standards |
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Flame-retardant & Fire-resistant Performance |
Fire-resistance Grade |
Satisfies fire-resistance requirements for mine working conditions; reliable power-on under short-term high-temperature environment |
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Flame-retardant Grade |
Complies with MT 386 mining flame-retardant standard; self-extinguishing upon flame removal |
The cable uses a multi-stranded high-purity oxygen-free copper conductor. Compared with a rigid conductor construction, the stranded arrangement is better suited to mobile installations where the cable is repeatedly bent, moved or twisted during equipment operation.
Special-purpose rubber is specified for the insulation layer, while the outer sheath is described as wear-resistant, oil-resistant, drag-resistant and impact-resistant. These material characteristics are relevant to underground routes where the cable may come into contact with equipment, coal dust, moisture or hydraulic oil.
The supplied specification lists a copper-wire braided shield with a shielding coverage of at least 85%. A metallic shield can reduce electromagnetic coupling between the cable and nearby electrical equipment, although the actual shielding effect also depends on cable installation, shield termination and grounding.
The construction can incorporate power and control cores within the same cable assembly. This arrangement is useful where mobile mining equipment requires both electrical power and associated control connections, subject to the equipment's circuit configuration.
Mining Flexible Shielded Rubber Cable is intended for underground mobile equipment where electrical loading is combined with repeated mechanical movement. The exact model should be selected according to rated voltage, conductor cross-section, core arrangement, cable length, movement pattern and environmental conditions.
The flexible construction can be used for mobile equipment operating along mechanized mining faces, where cable movement and repeated bending are part of normal operation. The conductor size and core configuration should match the equipment's electrical requirements.
Mobile equipment operating in underground roadways may require a cable with resistance to dragging, impact and abrasion. Equipment type, installation route and available clearance should be considered when determining the appropriate cable construction.
Where high-power motors, frequency converters or other electrical equipment are installed near control or monitoring circuits, the metallic shielding layer can help limit electromagnetic coupling. Correct shield connection and grounding remain important parts of the overall installation.
The rubber insulation and outer sheath provide a construction intended for demanding underground environments. Actual environmental suitability should be checked against water exposure, temperature, oil contact, mechanical loading and the specific requirements of the mine.
The supplied specification lists a rated voltage of 0.66/1.14 kV and conductor cross-sections from 10 mm² to 150 mm². Selection should consider equipment load, allowable voltage drop, cable length and the expected installation conditions rather than conductor size alone.
For mobile mining equipment, the cable may experience repeated bending, torsion and dragging. The conductor stranding, insulation, sheath and installation radius should therefore be considered together when evaluating the cable for a specific equipment layout.
The supplied product uses a copper-wire braided shield with a stated coverage of ≥85%. If the cable is installed close to variable-frequency drives or high-power motors, the required shielding arrangement should be checked against the equipment manufacturer's requirements and the mine's electrical design.
The supplied technical data states compliance with MT 386 mining flame-retardant requirements and self-extinguishing after flame removal. Where a project requires specific mine-safety certification or additional test documentation, those requirements should be confirmed for the exact cable model before procurement.
For mining cable procurement, technical verification should cover the model, rated voltage, conductor cross-section, core arrangement, shielding construction, electrical resistance and applicable testing requirements. These details provide a clearer basis for product selection and acceptance than general performance descriptions.
Qiancheng can provide product specifications and supporting technical documentation according to the selected cable model and project requirements. Where certification, test reports or other inspection records are required, the applicable documents should be confirmed during the quotation and order-review stage.
Provide the equipment type, operating environment and whether the cable will be used for fixed or mobile operation. This helps determine whether the flexible construction and shielding arrangement match the actual installation.
Confirm rated voltage, conductor cross-section, number of power cores, control-core requirements and cable length. For longer cable runs, voltage drop and conductor resistance should also be considered.
Information about dragging frequency, bending direction, minimum installation radius, contact with machinery and possible impact can help determine the appropriate cable construction.
Before production or shipment, confirm the applicable mining standards, certification requirements, inspection records and other technical documents required by the mine, equipment manufacturer or project specification.
A: The supplied specification lists MYP and MYPT models, with a rated voltage of 0.66/1.14 kV and conductor cross-sections from 10 mm² to 150 mm². The required core arrangement should be confirmed according to the equipment and circuit design.
A: The cable uses a copper-wire braided shield with a stated shielding coverage of ≥85%. The shield can help reduce electromagnetic coupling from nearby electrical equipment. Its actual effectiveness depends on the complete installation, including shield termination and grounding.
A: The flexible conductor and rubber construction are intended for mobile applications involving repeated bending, torsion and dragging. The final selection should take account of equipment movement, cable routing, voltage, conductor size and environmental conditions.
A: The product information references MT/T 818.7-2009 for the mining cable specification and MT 386 for mining flame-retardant requirements. The applicable standard and certification documents should be confirmed against the exact model and project requirements.
A: The main information includes cable model, rated voltage, conductor cross-section, core configuration, required length, quantity, application equipment and installation conditions. Any project-specific certification or inspection-document requirements should also be provided.
A: Technical specifications and applicable supporting documents can be provided according to the selected model and project requirements. For mining projects, the required certificates and test records should be confirmed before the order is finalized.
Address
Qiancheng Cable Co., Ltd., Hengde Industrial Park, Gucheng County, Hengshui City, Hebei Province, China
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