Type SHD-GC Three-Conductor Round Portable Power Cable CPE Jacket 25kV to ICEA S-75-381

Feichun Type SHD-GC Three-Conductor Round Portable Power Cable CPE Jacket 25kV to ICEA S-75-381

Applications :

These heavy duty cables are designed for applications such as longwall shearers, continuous miners and mobile equipment such as shovels, dredges and drills.

Standards :

ICEA S-75-381/NEMA WC 58

ASTM B 172

ASTM B 33

CAN/CSA C22.2 No. 96

Construction :

Conductor	Stranded annealed tinned copper conductor.
Conductor Shield	Conducting layer.
Insulation	Ethylene Propylene Rubber (EPR).
Insulation Shield	Conducting tape + Tinned copper/textile braid.
Ground Check Conductor	Tinned copper with a yellow polypropylene insulation.
Grounding Conductor	Tinned copper conductor.
Jacket	Reinforced extra-heavy-duty Chlorinated Polyethylene (CPE), black.

Options :

Other jacket materials such as CSP/PCP/NBR/PVC/TPU are available upon request.
Two-layer jacket with reinforcing fibre between the two layers can be offered as an option.

Mechanical and Thermal Properties :

Minimum Bending Radius: 8×OD.
Maximum Conductor Operating Temperature: +90℃.

Dimensions and Weight :

Construction	No. of Strands	Grounding Conductor Size	Ground Check Conductor Size	Nominal Insulation Thickness		Nominal Jacket Thickness		Nominal Overall Diameter		Nominal Weight		Ampacity
No. of cores ×AWG/kcmil	-	AWG/ kcmil	AWG/ kcmil	inch	mm	inch	mm	inch	mm	lbs/kft	kg/km	A
3×1	259	5	8	0.260	6.6	0.265	6.7	2.95	74.9	5290	7872	191
3×1/0	259	4	8	0.260	6.6	0.265	6.7	3.05	77.5	5800	8631	218
3×2/0	329	3	8	0.260	6.6	0.280	7.1	3.20	81.3	6515	9695	249
3×3/0	413	2	8	0.260	6.6	0.280	7.1	3.33	84.6	7215	10737	286
3×4/0	532	1	8	0.260	6.6	0.295	7.5	3.50	88.9	8250	12277	327

Ampacity-Based on a conductor temperature of 90℃ and an ambient air temperature of 40℃, per ICEA S-75-381.

In high-power underground and surface mining environments, portable power cables are not just conductors—they are safety-critical lifelines. When voltage levels rise to 25kV, mechanical abuse intensifies, and compliance becomes non-negotiable, engineers and mine operators increasingly search for Type SHD-GC 25kV power cable solutions that can survive the harshest conditions.

So what exactly is a Type SHD-GC Three-Conductor Round Portable Power Cable with a CPE jacket, and why is it widely specified under ICEA S-75-381 for heavy-duty mining equipment?

What Is Type SHD-GC 25kV Power Cable and Where Is It Used?

Type SHD-GC is a shielded, heavy-duty, three-conductor round portable power cable designed for medium-to-high voltage mobile mining equipment, rated up to 25kV under ICEA S-75-381 / NEMA WC 58.

Typical Applications Include:

Longwall shearers
Continuous miners
Electric shovels and draglines
Mobile drills and dredges
High-power mobile substations

In South African coal, platinum, and iron ore mines, these cables are commonly deployed where frequent movement, abrasion, and electrical stress coexist.

How Is a Type SHD-GC 25kV Cable Constructed?

The reliability of a SHD-GC cable lies in its multi-layer engineered construction, where each component performs a critical function.

What Type of Conductor Is Used?

Stranded annealed tinned copper
Excellent flexibility for mobile equipment
Superior corrosion resistance in humid or acidic mine environments

Why Is a Conductor Shield Important?

Conductive shielding layer around each conductor
Ensures uniform electric field distribution
Reduces partial discharge risks at 25kV

What Insulation Protects Against High Voltage?

Ethylene Propylene Rubber (EPR) insulation
High dielectric strength
Excellent thermal stability up to 90 °C
Resistant to moisture and ozone

How Is Insulation Shielding Achieved?

Conductive tape + tinned copper/textile braid
Provides effective grounding and EMI suppression
Enhances electrical safety and fault detection

How Are Grounding and Ground Check Integrated?

Grounding conductor: Tinned copper
Ground check conductor: Tinned copper with yellow polypropylene insulation
Enables continuous earth continuity monitoring—essential in South African mines

Why Use a CPE Jacket?

Reinforced extra-heavy-duty Chlorinated Polyethylene (CPE)
Outstanding resistance to: Oils and chemicals; Abrasion and impact; Flame spread
Maintains flexibility in hot and cold conditions

How Does SHD-GC Compare with Other Portable Mining Cables?

SHD-GC vs SHD-CGC vs Type G-GC

Feature	SHD-GC 25kV	SHD-CGC	Type G-GC
Voltage Rating	Up to 25kV	≤ 15kV	≤ 5kV
Insulation	EPR	EPR	Rubber
Shielding	Full conductor + insulation shield	Partial	Limited
Application	High-power mining	Medium-power mining	Low-voltage equipment
Compliance	ICEA S-75-381	ICEA	ICEA / CSA

For longwall and high-power mobile systems, SHD-GC is the clear choice.

What Installation Practices Ensure Maximum Cable Life?

Recommended Installation Guidelines:

Respect minimum bending radius (8×OD) at all times
Avoid sharp edges and unsupported spans
Use roller systems during installation
Ensure proper grounding and ground-check continuity
Inspect jacket condition regularly in drag zones

Proper installation can extend service life by 30–50% in aggressive mining conditions.

Frequently Asked Questions About Type SHD-GC 25kV Power Cable

Can SHD-GC 25kV cables be used outdoors?

Yes. The CPE jacket offers excellent UV, moisture, and chemical resistance.

Is SHD-GC cable suitable for reeling applications?

Yes, when installed with correct bending radius and tension control.

Can alternative jacket materials be specified?

Yes. CSP, PCP, NBR, PVC, and TPU jackets are available upon request, including dual-layer reinforced designs.

Does SHD-GC meet South African mining requirements?

When properly specified, it aligns with mine safety regulations, grounding practices, and NRCS expectations for imported mining cables.

Why Choose Feichun Type SHD-GC 25kV Power Cable?

Proven compliance with ICEA S-75-381 / NEMA WC 58
Robust construction for African mining conditions
Flexible customization options
Reliable performance in high-voltage mobile systems

Ready to Specify the Right SHD-GC 25kV Cable for Your Project?

If you are:

Designing a 25kV mobile power system
Upgrading longwall or continuous mining equipment

👉 Contact our technical team for datasheets, sizing support, or project-specific recommendations.