ASTM B33 (ICEA S-75-381) Type SHD-GC Portable and Power Feeder Cables for Use in Mines Applications ANSI/NEMA WC 58

In the demanding and harsh environments of mining operations, the need for reliable, durable, and high-performance power feeder cables is paramount.

Type SHD-GC Portable and Power Feeder Cables (in compliance with ASTM B33, ICEA S-75-381, and ANSI/NEMA WC 58) offer a robust solution for safely transmitting power to mobile and heavy-duty mining equipment.

These cables are designed to withstand the mechanical stresses, abrasion, and environmental challenges that are common in underground and surface mining operations.

With features like tinned copper conductors, CPE outer jackets, and ground-check conductors, the SHD-GC cables provide exceptional flexibility, durability, and safety in even the most extreme conditions. Whether it’s supplying power to loaders, drills, or shovels, Type SHD-GC cables are engineered to deliver superior performance and safety standards.

Why Choose SHD-GC Cables for Mining Applications?

Type SHD-GC cables are specifically designed for mining and similar applications, making them an excellent choice for underground and surface power supply needs.

These cables stand out due to their ability to handle medium voltage power, up to 8,000 volts, while ensuring safety through ground check conductors and multiple grounding conductors. Here are some of the core advantages:

Durability: Heavy-duty construction with CPE jackets ensures high resistance to cuts, abrasion, oils, ozone, and flame.

Safety: Equipped with a ground-check conductor, Type SHD-GC cables provide additional safety measures by detecting any break in the ground system.

Flexibility: The use of stranded tinned copper conductors provides excellent flexibility, making these cables ideal for mobile and portable mining equipment.

Temperature Resistance: Designed to withstand a wide temperature range from -40°C to +90°C, these cables are suitable for use in both frigid and hot conditions.

Key Differences Between SHC-GC, SHD, and SHD-GC Cables

When it comes to choosing the right cable for mining applications, it is essential to understand the differences between Type SHC-GC, Type SHD, and Type SHD-GC cables.

Although all of these types are used in power supply for mobile and heavy-duty equipment, their internal structures and specific uses vary.

Cable Type	Conductors	Grounding Conductors	Ground-Check Conductor	Overall Shield	Application
SHC-GC	Multiconductor	Two	Yes	Yes	For portable equipment requiring ground-check systems.
SHD	Individually shielded power conductors	Three	No	No	Used where shielding of each power conductor is critical for electromagnetic interference control.
SHD-GC	Individually shielded power conductors	Two	Yes	Yes	Ideal for mobile mining equipment needing both grounding and ground-check conductors.

 

 

SHD-GC Cable Applications

Type SHD-GC cables are optimized for the tough working conditions found in mines and similar industries, offering both power supply and enhanced safety features. Below are common applications:

Mobile Mining Equipment:

These cables supply medium voltage power to drag lines, loaders, shovels, and dredges.

Portable Power Systems:

SHD-GC cables are widely used in portable mining equipment, providing reliable power distribution across various sites.

Safety-Critical Applications:

The ground-check conductor ensures continuous monitoring of grounding integrity, which is essential in hazardous environments where electrical faults could pose significant risks.

Construction and Materials

Conductors

Type SHD-GC cables feature flexible stranded tinned copper conductors, which provide the flexibility necessary for moving and portable equipment while also offering resistance to corrosion.

Tinned copper is an ideal material due to its excellent conductivity and enhanced protection against environmental elements.

Insulation

The insulation consists of ethylene-propylene rubber (EPR), which provides excellent electrical properties and high thermal stability.

Additionally, the inner semiconductive rubber layer over a semiconductive tape adds to the cable’s insulation, preventing electrical faults.

Grounding and Ground-Check Conductors

One of the distinctive features of Type SHD-GC cables is the inclusion of both two grounding conductors and a ground-check conductor.

The grounding conductors ensure the safe dissipation of stray electrical currents, while the ground-check conductor is used for continuous monitoring of the integrity of the grounding system.

Outer Jacket

The outer jacket is made from an extra heavy-duty chlorinated polyethylene (CPE) material, known for its outstanding toughness and resistance to cuts, abrasion, oils, and chemicals.

It’s designed to handle the mechanical stress and harsh conditions of mining environments.

Component	Material	Function
Conductor	Stranded tinned copper	Flexibility and corrosion resistance.
Insulation	Ethylene-propylene rubber (EPR)	Electrical insulation and high thermal resistance.
Grounding	Stranded tinned copper	Safe dissipation of stray currents.
Ground-Check	Stranded tinned copper with EP coating	Continuous monitoring of ground system integrity.
Outer Jacket	Chlorinated polyethylene (CPE)	Provides mechanical protection, resistance to oil, ozone, and flame.

 

 

Technical Specifications

The Type SHD-GC cables are built to meet specific technical requirements that ensure durability and performance under tough conditions.

Specification	Value
Voltage Rating	8,000 volts
Temperature Range	-40°C to +90°C
Jacket Material	Extra heavy-duty CPE
Insulation Material	Ethylene-propylene rubber (EPR)
Grounding Conductors	Two flexible stranded tinned copper
Ground-Check Conductor	One flexible stranded tinned copper
Shielding	Tinned copper wire braid and textile fiber
UL Flame Rating	FT1-FT5
Oil and Ozone Resistance	Yes

 

 

Cable Options and Variations

Below is a selection of available ECKABEL SHD-GC cables with their respective specifications.

These variations are customized for specific mining applications based on the number of conductors and the size of the copper core:

Cable Type	Conductor Size (AWG/kcmil)	Grounding Size (AWG)	Ground-Check Size (AWG)	Insulation Thickness (inches)	Outside Diameter (inches)	Weight (lbs/kft)
4-ECKABEL 8KV-SHDGC	4	8	8	0.150	2.08	2,500
2-ECKABEL 8KV-SHDGC	2	6	8	0.150	2.23	3,050
1-ECKABEL 8KV-SHDGC	1	5	8	0.150	2.30	3,350
1/0-ECKABEL 8KV-SHDGC	1/0	4	8	0.150	2.40	3,800
2/0-ECKABEL 8KV-SHDGC	2/0	3	8	0.150	2.56	4,550

 

Certifications and Standards

Type SHD-GC Portable and Power Feeder Cables meet several crucial industry standards that ensure their reliability and performance in mining environments:

ASTM B33: Copper conductor standards.

ICEA S-75-381/NEMA WC58: Portable and Power Feeder Cables for Use in Mines.

FT1-FT5: Flame resistance standards.

Oil and Ozone Resistance: Certified for mining environments.

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By using ASTM B33 (ICEA S-75-381) Type SHD-GC Cables, you ensure that your mining operations have the necessary power supply infrastructure with the highest levels of safety, durability, and performance, all while meeting ANSI/NEMA WC 58 standards.

Whether you're working underground or above ground, these cables are built to withstand the challenges of the mining industry, providing a reliable solution for heavy-duty and high-voltage needs.

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Cable Specifications and Sizes

Selecting the right cable size is critical for your project. Below is a table that outlines some common sizes and specifications for Type SHD-GC cables:

AWG/kcmil	Grounds	Ground Check	Insulation Thickness (inches)	Outside Diameter (inches)	Approx. Cable Weight (lbs/kft)
4	8	8	0.150	2.08	2,500
2	6	8	0.150	2.23	3,050
1	5	8	0.150	2.30	3,350
1/0	4	8	0.150	2.40	3,800
2/0	3	8	0.150	2.56	4,550
3/0	2	8	0.150	2.69	5,150
4/0	1	8	0.150	2.83	6,000
250	1/0	8	0.150	2.93	6,650
300	1/0	8	0.150	3.07	7,350
350	2/0	8	0.150	3.22	8,500
500	4/0	8	0.150	3.51	10,850

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Performance in Harsh Environments

The SHD-GC cable is designed to perform in the most challenging environments. Thanks to its flexibility and resistance to oil, flame, and ozone, the cable is suitable for continuous use in underground mining and other industrial environments.

Additionally, its high-tensile strength ensures it can withstand the mechanical stress often associated with drag chain systems and mobile equipment.

With its robust CPE jackets and tinned copper shielding, the cable is highly resistant to mechanical abrasion and environmental wear, ensuring long service life even in the most extreme conditions.

  

Note: This is just part of the standard parameters of our products. Please contact our Engineer if you need more. And the information contained within this webpage is for guidance only and is subject to change without notice or liability. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All pictures shown are for illustration purposes only. The actual product may vary. All the information is provided in good faith and is believed to be correct at the time of publication.

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