2000V Round Type G GC 3/C EPR CPE Rubber Cable for Mining Track Equipment

Three Conductor Round Type G-GC Mining Cable Specification:

1 SCOPE: This specification describes 3 conductor round type G-GC portable power cable with ethylene-propylene rubber insulation for use on circuits not exceeding 2000 volts at a maximum continuous conductor temperature of 90°c. These cables are intended for use on
AC of track equipment such as continuous miners, shuttle cars, cuting machines, loading machines and drills, as well as conveyors and pumps.
2. STANDARDS:  ICEA S-75-381/NEMA WC-58, ASTM B-172, ICEA S-68-516/NEMA WC-8, ASTM B-33
3. CONDUCTORS: Annealed tin coated rope stranded conductors in accordance with ICEA and ASTM.
4. INSULATION: The insulation shall be ethylene-propylene rubber (EPR) extruded insulation.

The average thickness of the insulation wall over the conductor shall be as specified in Table 3-12 of ICEA S-75-381.
The minimum thickness of insulation shall not be less than 90% of the specified average value.
5. CIRCUIT IDENTIFICATlON: Color coding of power conductors shall be black, white and red in accordance with Par. 7.2.15.1 of lCEA. Stock cables shall have colored insulation.
6. GROUNDING CONDUCTORS: The grounding conductors shall be annealed tin coated copper of not less than the size and number of wires in Table 3-12 of lCEA S-75-381 for the corresponding power conductor sizes. Each grounding conductor shall be
covered with a green Mylar tape.

7. GROUND CHECK CONDUCTOR:  The ground check conductor shall be as given in Table 3-12 of ICEA S-75-381 for the corresponding power conductor sizes. A minimum of 49 strands of annealed copper shall be used. The conductor shall have a yellow TPE insulation.
8. ASSEMBLY CORE: Sizes 4/0AWG and smaller: Three power conductors shall be cabled together with a left-hand lay meeting the requirements of Table 3-5 of IcEA S-75-381, the ground check conductor shall be laid in the valley between the black and white power conductors, a tinned copper grounding conductor in each of the other two valleys and a synthetic reinforcing binder overall. This assembly wil provide integral filing when the jacket is applied. Sizes 250 MCM and larger: Three power conductors shall be cabled together with a left-hand lay meeting the requirements of Table 3-5 of 1CEA S-75-381, the ground check conductor shall be laid in the valley between the black and white power conductors and a tinned copper grounding conductor in each of the other two valleys, with
cured rubber fillers as required to make an essentially round core, synthetic binder and a single faced rubber filled binder tape applied overall.
9. JACKET:  A CPE jacket shall be extruded over the assembly in accordance with Par. 3.21 of ICEA S-75-381, The standard jacket for al sizes is extra-heavy-duty black CPE or colors can be provided. All jackets meet the requirements of lCEA S-75-381 Table 3-3, and have a smooth dense surface that is highly resistant to cutting, abrasion, chemicals, sunlight and flame. it has excellent resistance to heat, moisture and the oils commonly used in mining applications.
10.OUTSIDE DIAMETER: Shall be in accordance with ICEA S-75-381 Table 3-12, and tolerances shall meet the requirements of  ICEA S-75-381 Par 3.22.2.
11. SURFACE LEGEND: Shal lbe embossed in the jacket showing 600/2000v 3/c (size) Tvpe G-GC. Additional information can be furnished on the surface legend to special order.
12. TEARS: Cable shall be tested in accordance with applicable ICEA reguirements.

Technical Parameter of  2000V Round Type G-GC 3/C Mining Cable

Size AWG	Power Conductors		Grounding Conductors		Nominal Outside Dimensions in.	Approx. Weight lbs. per 1,000 ft.	Ampacity3
	No. of Wires per Conductor	Insulation Thickness mils	Size AWG	No. of Wires per Conductor			40°C Ambient Temp
8	133	60	10	49	0.97	600	59
6	259	60	10	49	1.05	750	79
4	259	60	8	133	1.19	1070	104
2	259	60	7	133	1.34	1480	138
1	259	80	6	133	1.51	1890	161
1/0	266	80	5	133	1.65	2340	186
2/0	323	80	4	259	1.75	2750	215
3/0	418	80	2	259	1.89	3377	249
4/0	532	80	2	259	2.04	3980	287
250	627	95	2	259	2.39	5000	320
350	888	95	1/0	266	2.68	6750	394
500	1221	95	2/0	323	3.03	8900	487

1 Jacket – Black CPE is standard. Colored CPE jackets available upon request.
2 Ground Check Conductor
– 10 AWG (minimum 49 strand 7×7) ground check conductor on 8 AWG through 2 AWG cable.
-8 AWG (minimum 133 strand 7×19) ground check conductor on 1 AWG through 4/0 AWG cable.
-6 AWG (minimum 133 strand 7×19) ground check conductor on 250 kcmil and larger cable.
3 Ampacity – Based on continuous duty at 90°C conductor temperature.
4. Tolerances： -± .030″ 8-1 AWG
± .040″ 1/0 – 2/0 AWG
± .050″ 3/0 – 4/0 AWG
± .060″ 250 – 500 kcmil

   

Reel Correction Factors

For use with ampacities when one or more layers of type g gc mining cable are wound on a reel. Cables must be derated to prevent over heating on reel.

Number of Layers	Multiplying Correction Factors
1	0.85
2	0.64
3	0.45
3	0.35

TEBAOFLEX CALE Heavy-duty Mining Cable Product Process

TEBAOFLEX CABLE GROUP are equipped with world-class production facilities dedicated to manufacturing heavy-duty special rubber-sheathed cables, supported by a professional team of experienced cable technical engineers.
All our type g gc mining cable products are strictly manufactured and tested in full compliance with internationally recognized standards including ICEA and VDE. We adhere to rigorous quality control procedures throughout every production process to ensure reliable performance, excellent durability and stable quality of each cable.
TEBAOFLEX CABLE GROUP advanced manufacturing technology and standardized inspection systems enable our products to meet stringent global application requirements, delivering trustworthy solutions for various heavy-duty industrial and engineering scenarios worldwide.

1. Conductor Preparation & Extrusion

Phase Conductors: Start with finely stranded, tinned, soft-annealed copper wire. Extrude a semi-conducting layer over the conductor to act as a conductor shield and ensure smooth electrical fields.
Primary Insulation: Extrude a layer of
Ethylene Propylene Rubber (EPR) over the semi-conducting layer. An additional semi-conducting EPR layer is then extruded over the insulation as a strippable insulation shield.
Ground & Ground Check Conductors: Prepare uninsulated flexible tinned copper ground wires and a ground check wire. The ground check wire must be extruded with high-strength, colored polypropylene insulation (typically yellow)

2. Shielding & Core Assembly

Braid Shielding: Apply a composite tinned copper and color-coded textile/nylon braid (Black, Blue, Red for phase identification) over each of the insulated phase conductors to act as an individual electrostatic shield.
Cabling (Twisting): Lay up the three shielded phase conductors, two uninsulated ground conductors, and the yellow ground check conductor together with suitable rubber fillers to achieve a perfectly circular cross-section.
Bedding & Reinforcement: Wrap the cabled core with a single-faced rubber-filled binder tape and apply a reinforcing twine (reinforcing braid) to provide mechanical strength.

3.  Jacketing(Inner Sheath and Ourter Sheath)

Inner & Outer Sheath: Extrude a heavy-duty thermosetting Chlorinated Polyethylene (CPE) compound over the assembly to form the inner jacket. For heavy-duty mining grades, apply a second outer CPE jacket.
Mold-Curing: For strict mining applications, the cable must pass through a continuous vulcanization (CV) or mold-curing process to cross-link the thermoset rubber and deliver extreme abrasion, oil, and chemical resistance.

The 2000V Type W portable power mining cable designed for heavy-duty portable power supply in mining operations. Suitable for surface mines and non-coal underground mines. Widely used for power connection of electric shovels, draglines, loaders, drills, mobile crushers and tunnel boring equipment. Ideal for sites with frequent dragging, winding and bending.

• 1. Safety Preparations
  Confirm the type w portable mining power cable voltage class 2000V, Wear PPE: insulated gloves, safety glasses, steel-toe boots
• 2. Cable Inspection & Route Planning
  Plan route: avoid sharp edges, high heat, and excessive bending. Minimum bending radius: 6× OD; no kinks or sharp bends.
• 3. Connector Installation (Camlock / Mine-style)
  Slide backshell, gasket, and strain relief onto cable. Wrap copper shim around bare conductors for proper seating. Insert into camlock body, tighten set screws evenly.
  Secure strain relief (critical for mining drag/pull).
  Seal jacket entry to prevent moisture/dirt ingress.
• 4. Cable Laying & Securing
  Lay cable in straight runs; use rollers to avoid dragging on sharp surfaces.