2XSEYQY 6/10kV MV Tunnel Power Cable

2XSEYQY 6/10kV MV Tunnel Power Cable is a TEBAOFLEX cable for the application and operating conditions identified in the original product record. Select the main conductor size from operating current, route length, permissible voltage drop, prospective short-circuit current, ambient temperature and installation method. Current capacity should be calculated according to DIN VDE 0298-4 for the actual route; the same conductor size can carry a different load when installed in air, ducts, trays, grouped runs or thermally restricted underground spaces. The copper tape screen and galvanized steel wire braid require a documented bonding and earthing arrangement. Verify screen fault-current capacity, armour continuity, termination hardware and whether one-point or both-end bonding is required by the system design. The `/16` suffix is reproduced from the supplied size table; its exact screen or secondary-conductor definition should be confirmed on the approved construction drawing. For mechanical planning, check the actual cable diameter, minimum bending radius, route changes, cable weight, pulling length, pulling-eye method and cleat spacing. Keep pulling load within 15 N/mm² and torsion within 25°/m. Because the conductor is Class 2 and the stated mobile temperature starts at +5°C, continuous reeling, high-cycle festoon service and cold-weather movement require a purpose-designed alternative unless separately approved. An RFQ should state the system voltage, conductor size, route length, installation method, fault level and duration, bonding arrangement, movement duty, ambient temperature, hazardous-area documentation, required flame test, drum length and inspection documents. The source record places this product in mining & tunneling cables. Before ordering, confirm the exact product variant, conductor or core arrangement, system rating, route conditions, equipment connection and required documentation against the project specification.

2XSEYQY 6/10kV MV Tunnel Power Cable construction

Cable Construction

1. Conductors: Circular stranded plain annealed copper, Class 2 according to IEC 60228.
2. Inner semiconductive layer: Extruded rubber semiconductive compound over the conductor for electrical field control.
3. Insulation: XLPE medium-voltage insulation.
4. Outer semiconductive layer: Extruded rubber semiconductive compound over the insulation.
5. Core identification: Natural insulation colour with a black semiconductive layer.
6. Metallic screen: Copper tapes applied around each main core.
7. Lay-up and bedding: Three screened cores laid up concentrically with PVC filler.
8. Armour: Galvanized steel wire braid with minimum 90% coverage.
9. Outer sheath: Red flame-retardant special PVC compound.

2XSEYQY 6/10kV MV Tunnel Power Cable applications

Applications

• Medium-voltage supply to underground mining and tunnelling transformers
• Main panels and switchboards in tunnel distribution networks
• Power routes in mines and underground excavations where screened cores and steel-wire-braid protection are required
• Stationary installations exposed to mechanical handling risks
• Connections to mobile operating equipment only where movement duty and bending conditions have been technically approved

Selection Notes for Buyers

Select the main conductor size from operating current, route length, permissible voltage drop, prospective short-circuit current, ambient temperature and installation method. Current capacity should be calculated according to DIN VDE 0298-4 for the actual route; the same conductor size can carry a different load when installed in air, ducts, trays, grouped runs or thermally restricted underground spaces.

The copper tape screen and galvanized steel wire braid require a documented bonding and earthing arrangement. Verify screen fault-current capacity, armour continuity, termination hardware and whether one-point or both-end bonding is required by the system design. The `/16` suffix is reproduced from the supplied size table; its exact screen or secondary-conductor definition should be confirmed on the approved construction drawing.

For mechanical planning, check the actual cable diameter, minimum bending radius, route changes, cable weight, pulling length, pulling-eye method and cleat spacing. Keep pulling load within 15 N/mm² and torsion within 25°/m. Because the conductor is Class 2 and the stated mobile temperature starts at +5°C, continuous reeling, high-cycle festoon service and cold-weather movement require a purpose-designed alternative unless separately approved.

An RFQ should state the system voltage, conductor size, route length, installation method, fault level and duration, bonding arrangement, movement duty, ambient temperature, hazardous-area documentation, required flame test, drum length and inspection documents.

Selection checks

Confirm the equipment interface, installation method, route length, movement or flexing duty, environmental exposure, conductor or core requirements and project documentation before final selection.

2XSEYQY 6/10kV MV Tunnel Power Cable specifications

The source-listed technical notes are retained below. Confirm the final size, tolerance, installation basis and ordered configuration before release.

2XSEYQY for Medium-Voltage Tunnel Distribution

2XSEYQY is a three-core 6/10 kV medium-voltage power cable developed for underground mining and tunnelling networks. It is used where transformers, main distribution panels, switchboards or approved equipment connections require screened XLPE-insulated cores together with substantial external mechanical protection.

Each phase core has inner and outer semiconductive field-control layers and an individual copper tape screen. The three screened cores are laid up with PVC filling, protected by a galvanized steel wire braid with at least 90% coverage, and finished with a red flame-retardant special PVC sheath. This layered construction supports electrical field control and physical protection in confined underground routes.

The cable uses IEC 60228 Class 2 conductors. It should therefore be selected as an armoured tunnel power cable rather than automatically treated as a continuous-flex reeling cable. Any moving-machine application must be checked against the bending cycle, movement frequency, tensile force, torsion and minimum mobile temperature stated for the project.

Source-listed technical tables

The tables below retain the original product data, including units, ranges and ordering examples.

Original product attributes

These product attributes are retained as supplied and should be checked against the ordered construction.

2XSEYQY 6/10kV MV Tunnel Power Cable standards and compliance

The following standard references are carried over from the original product record. They identify the source basis and do not replace project-specific certification or inspection requirements.

• The cable uses IEC 60228 Class 2 conductors. It should therefore be selected as an armoured tunnel power cable rather than automatically treated as a continuous-flex reeling cable. Any moving-machine application must be checked against the bending cycle, movement frequency, tensile force, torsion and minimum mobile temperature stated for the project.
• Red flame-retardant PVC sheath: The visible red sheath supports route identification, while the supplied specification lists flame testing to the stated VDE, EN and IEC methods.
• Minimum Bending Radius According to DIN VDE 0298-3
• Current-Carrying Capacity According to DIN VDE 0298-4
• Conductors: Circular stranded plain annealed copper, Class 2 according to IEC 60228.
• Select the main conductor size from operating current, route length, permissible voltage drop, prospective short-circuit current, ambient temperature and installation method. Current capacity should be calculated according to DIN VDE 0298-4 for the actual route; the same conductor size can carry a different load when installed in air, ducts, trays, grouped runs or thermally restricted underground spaces.

Where a project requires a test report, certificate, marking record or inspection release, include that requirement in the quotation request.