Type G-GC Cable 2000V Portable Mining Power Cable

Type G-GC Cable for 2000V Mining Equipment

Type G-GC cable is a round three-conductor 2 kV portable mining power cable with two grounding conductors and a separate insulated ground-check conductor. The supplied construction uses flexible rope-lay stranded tinned-copper conductors, 90°C EPR insulation, textile reinforcement and a heavy-duty black CPE jacket. It is intended for mobile surface or underground equipment that requires grounding and protective ground-continuity monitoring.

The ground-check conductor is part of the monitoring circuit, not a substitute for the equipment grounding conductors. Confirm the protection scheme, conductor size, route length, current, termination space and movement duty before treating one portable mining cable type as interchangeable with another.

Cable schedules write this family several ways: Type G-GC, Type GGC, G-GC cable or GGC mining cable. “Ground check” and “ground-check” describe the same yellow monitoring conductor.

• Suitable for: blast-hole drills, continuous miners, cutters, loaders, shuttle cars, pumps and similar relocatable equipment.
• Choose by: 2000V circuit requirements, AWG/kcmil size, ampacity, voltage drop, overall diameter and reel conditions.
• Confirm before ordering: grounding layout, ground-check conductor, drum layers, cable length, marking and documentation.
• Use another construction when: the project specifies shielded medium-voltage cable or does not use a ground-check circuit.

Download the Type G-GC cable datasheet (PDF) or use the mining cable comparison guide before requesting a quotation.

Type G-GC Cable Construction

The supplied round Type G-GC cable combines three power conductors with two grounding conductors and one ground-check conductor. Each layer below is taken from the supplied TEBAOFLEX 2 kV datasheet; final conductor identification and marking follow the approved order drawing.

Type G-GC Cable Applications

Type G-GC cable is used for 2000V portable power circuits on mobile or relocatable mining equipment when the protection scheme requires both equipment grounding conductors and a separate ground-check conductor. The supplied datasheet names blast-hole drills, continuous miners, pumps, cutters, loading machines and shuttle cars. Suitability still depends on the route, termination system, monitoring circuit, ampacity, voltage drop and mechanical handling.

What does the ground-check conductor do?

The insulated ground-check conductor forms part of a protective monitoring circuit that checks continuity of the equipment-grounding path. If the project requires this function, the conductor, terminations and relay logic must be treated as one system. The ground-check conductor does not replace either grounding conductor, and cable selection alone does not establish the protection settings. Include the equipment electrical diagram or existing cable marking in the RFQ so the conductor functions can be matched before manufacture.

How does Type G-GC compare with other mining cables?

Type G-GC is an unshielded 2000V round portable mining cable with three power conductors, two grounding conductors and one insulated ground-check conductor. Type G is the related family without the separate ground-check conductor. Type W is a portable power cable selected by conductor count and route where no ground-check arrangement is specified. SHD-GC is the shielded family for the voltage and protection requirements stated by the project, and is not a name substitute for Type G-GC.

What is the ampacity of Type G-GC cable?

The TEBAOFLEX datasheet publishes Type G-GC ampacity from 59 A for 3/C 8 AWG to 487 A for 3/C 500 kcmil, based on continuous duty at +90°C conductor temperature and +40°C ambient temperature. Reduce the published value by the reel correction factor when the cable is wound: 0.85 for one layer, 0.65 for two, 0.45 for three and 0.35 for four. These are nominal selection values; confirm derating, voltage drop and the applicable installation code for the project. For comparison with US catalogues, the table also lists the NEC Table 400.5(A)(2) reference values at +30°C ambient, 65 A to 536 A; these are code-table values, not TEBAOFLEX test results. See the size and ampacity table.

Is Type G-GC cable MSHA approved?

This construction is manufactured to ICEA S-75-381 / NEMA WC 58 and carries the MSHA marking stated for the current product construction. No MSHA approval number is published on this page; request the marking record and the mine documentation required by the project in the RFQ so the exact construction and marking can be confirmed before manufacture.

Type G-GC Cable Specifications and Ampacity

The values below reproduce the TEBAOFLEX round three-conductor 2 kV datasheet. They are nominal selection data; confirm the final drawing, applicable derating, voltage drop, reel geometry, termination dimensions and installation code before ordering.

Select a Type G-GC size

Twelve 3/C sizes from 8 AWG to 500 kcmil. Choose the size, check the overall diameter and ampacity, then send it with the required length for a quotation. Stranding, grounding conductors, ground-check size, insulation thickness and weight for every row are in the full table below.

Dimensions, Weight and Ampacity

Reel Correction Factors

Apply the supplied multiplying factor to the published ampacity when the cable is wound on a reel. The actual project review must also consider reel ventilation, duty cycle and the applicable code.

Rating summary

Source Notes

• Metric dimensions and weights are rounded conversions of the supplied imperial values.
• The 40°C ampacity column is based on continuous duty at +90°C conductor temperature and +40°C ambient temperature per the TEBAOFLEX datasheet.
• The 30°C column reproduces NEC Table 400.5(A)(2) (90°C conductor, 30°C ambient) as published for Type G-GC by North American manufacturers. These are normative code-table values for this cable type, not a TEBAOFLEX performance statement. The 40°C values correspond, within rounding, to the 30°C values multiplied by the 0.91 ambient correction factor of NEC Table 310.15(B)(1).
• Outside-diameter tolerance: +/-0.030 in for 8-1 AWG; +/-0.040 in for 1/0-2/0 AWG.
• Outside-diameter tolerance: +/-0.050 in for 3/0-4/0 AWG; +/-0.060 in for 250-500 kcmil.

Supply and ordering

• Minimum order quantity: 50 m, for standard and custom constructions.
• Cut lengths: supplied cut to the ordered length; state the required length per drum in the RFQ.
• Typical lead time: 7–45 working days depending on size, construction and order details; the written quotation governs.
• Jacket colour: black as standard; other colours on request.
• Packing and marking: drum size, cable marking and the document package are confirmed at quotation.

Type G-GC Cable Standards

The TEBAOFLEX datasheet lists the following cable, conductor and Canadian standard references for this round three-conductor 2 kV construction. These are the standards this construction is designed and manufactured to. They are not certifications TEBAOFLEX holds for this product, and nothing in this table should be read as a UL Listing, a CSA certification or an MSHA approval.

Documents to define in the RFQ

• Required cable marking, mine reference and standard edition
• Final construction drawing, conductor identification and dimensional table
• Routine inspection, electrical test and third-party documentation required by the project
• Drum length, packaging, identification and delivery documentation
• Phase colour code, minimum bending radius and jacket print legend for the ordered size