OnGcekż-G2 0.6/1 kV Single-Sheath Longwall & Heading Mining Trailing Cable

Longwall face equipment, roadheaders and heading machines in Polish-standard and Central European coal mines draw heavy currents through a single trailing cable that is dragged, twisted and crushed every shift. OnGcekż-G2, also written OnGcekz-G2, answers this duty at 0.6/1 kV by splitting each phase over two power cores: six flexible tinned copper conductors with EPR insulation are laid up around a central group of insulated and screened pilot cores, with a 25 mm² tinned copper earth conductor.

Every power core carries a semi-conducting tape and a composite tinned copper/fibre braid with 75% coverage, so a damaged core faults to the screen and the earth-leakage protection trips quickly. The cable is finished with one extra-heavy-duty ON-4 polychloroprene sheath, 5.0 mm thick, that resists impact, abrasion, tearing, oil and water and is flame retardant. The reference schedule covers 6×35, 6×50, 6×70 and 6×95 mm² layouts and three dual-circuit layouts, 3×70+3×16, 3×70+3×25 and 3×70+3×35 mm², whose current ratings are stated per circuit, for example 190+117 A.

OnGcekż-G2 is the single-sheath version. Choose O2nGcekż-G2 when the route needs a double sheath with an open polyamide braid, OnGcekż-G for three-power-core trailing cable, and 1-CBEH where a gassy-mine cable with dedicated control and monitoring cores is specified. Approval documents for the destination mine are confirmed per order.

Explore the mining and tunneling cable range for related configurations.

OnGcekż-G2 (OnGcekz-G2) 0.6/1 kV Cable Construction & Layer Structure

The representative horizontal sample shows OnGcekż-G2 6x50+25+6x2.5 mm²: six tinned copper power cores with EPR insulation, semi-conducting tape and tinned copper/fibre braid screens, laid up around a central group of six screened 2.5 mm² pilot cores with a 25 mm² earth conductor under one black ON-4 polychloroprene sheath.

OnGcekż-G2 Type Designation Breakdown

• O: flexible rubber-sheathed (oponowy) cable
• n: oil-resistant, flame-retardant polychloroprene sheath
• G: mining (górniczy) duty
• e: screened power cores (semi-conducting tape and tinned copper/fibre braid)
• k: pilot (control) cores in the cable
• ż: protective earth conductor

OnGcekż-G2 0.6/1 kV Mining Applications & Duty Scope

Specify OnGcekż-G2 where a 0.6/1 kV machine needs high current through split power cores and a single heavy sheath is sufficient.

• Longwall shearers, face conveyors and stage loaders fed at 0.6/1 kV through heavily stressed trailing cable.
• Roadheaders and heading machines in coal and salt mines where the cable is dragged along the floor and around props.
• Machines with two separately protected circuits, using the dual-circuit 3x70 mm² plus 16, 25 or 35 mm² layouts.
• Mobile mining and industrial machines in methane and coal-dust hazard areas, subject to the approval documents required by the mine.

OnGcekż-G2 vs O2nGcekż-G2, OnGcekż-G and 1-CBEH Selection Boundary

Single-sheath and double-sheath versions share the same core layouts but are not interchangeable without checking gland diameter and handling duty.

Related selection resources

• Mining and tunneling cable engineering solutions
• Underground vs surface mining cables: longwall, hard-rock heading and open-pit selection guide
• O2nGcekż-G2 0.6/1 kV Double-Sheath Mining Cable
• OnGcekż-G 0.6/1 and 3.6/6 kV Screened Mining Cable
• 1-CBEH 0.6/1 kV Gassy Mine Cable with Control and Monitoring Cores

OnGcekż-G2 (OnGcekz-G2) Frequently Asked Questions

What is the difference between OnGcekż-G2 and O2nGcekż-G2?

Both have six screened EPR power cores around a screened pilot group. OnGcekż-G2 has one ON-4 polychloroprene sheath; O2nGcekż-G2 has a double-layer jacket with an open polyamide braid between the layers.

Why does the cable have six power cores?

Each phase is split over two cores, which keeps the cable flexible while carrying high current. The dual-circuit layouts instead feed a main 3x70 mm² circuit and a smaller auxiliary circuit.

How is OnGcekz-G2 written without Polish characters?

OnGcekz-G2. Both spellings refer to the same 0.6/1 kV construction to WT-96/K-346.

What are the MOQ and lead time?

The minimum order quantity is 50 m and the manufacturing lead time is 7 to 45 working days, depending on layout and quantity.

OnGcekż-G2 Dimensions, Ampacity & Technical Specifications

OnGcekż-G2 Key Specifications

• Voltage: 0.6/1 kV
• Layouts: 6x35 to 6x95 mm² plus dual-circuit 3x70+3x16 to 3x70+3x35 mm²
• Screen: Semi-conducting tape and 75% tinned copper/fibre braid on each power core
• Sheath: Single ON-4 polychloroprene layer, 5.0 mm
• Supply: MOQ 50 m; 7 to 45 working days

OnGcekż-G2 0.6/1 kV Reference Schedule

OnGcekż-G2 Construction and Rating Parameters

Dual-circuit ampacities such as 190+117 A give the main 3x70 mm² circuit and the auxiliary 3x16, 3x25 or 3x35 mm² circuit separately; three-value diameters are minimum/approximate/maximum.

Polish designations and the ZN / WT works standards are cited as construction references; TEBAOFLEX builds to the referenced construction and does not claim a Polish mining admission or third-party approval for it, so state the approval documents your mine requires when requesting a quotation.

ASCII part references for BOM and ERP entry: OnGcekz-G2 6x35+25+6x2.5, OnGcekz-G2 6x50+25+6x2.5, OnGcekz-G2 6x70+25+6x2.5, OnGcekz-G2 6x95+25+7x4, OnGcekz-G2 3x70+3x16+25+4, OnGcekz-G2 3x70+3x25+25+4, OnGcekz-G2 3x70+3x35+25+4.

OnGcekż-G2 Standards & Test References (WT-96/K-346)

Certifications and document support

TEBAOFLEX company certificates and quality system documentation

IEC Webstore — IEC 60228 conductor and IEC 60332-1-2 flame test publications (international references)