Type NTSKCGECWOEU 3,6/6KV mining Coal cutter cables for chain operation
a high-performance power cable engineered specifically for mobile mining equipment like coal cutting machines. Designed for use in underground mining, these cables are integrated into cable protection chains (cable handlers) that trail behind machines to absorb the tensile forces generated during operation.
High-Quality Conductor:
Constructed with very finely stranded, tinned copper conductors (class FS) for excellent electrical performance and durability in demanding environments.
Advanced PE Conductor Assembly:
Features a double concentric control/PE wire layout spun into the outer interstices, ensuring stable current distribution and enhanced mechanical resilience.
Superior Insulation System:
The core insulation is made of high-performance EPR rubber (using proprietary compounds like PROTOLON and Special Compound 3GI3), which provides excellent dielectric strength and environmental resistance.
Optimized Semi-Conductive Layer:
An outer semi-conducting layer, made with semi-conductive NBR easy-strip, helps to control the electric field and improve overall cable performance.
Multi-Core Design:
The cable consists of three main cores arranged with double concentric control/PE conductor elements in the outer interstices. The main cores are in a natural color, while the control cores are distinctly marked in blue for easy identification.
Robust Sheathing:
The inner sheath is constructed from a specialized EPR compound (GM1b), while the outer sheath is made of high-grade polychloroprene (PROTOFIRM with Special Compound >5GM5), offering exceptional resistance to flame (in compliance with EN/IEC 60332-1-2), oil, ozone, and UV exposure.
Voltage & Temperature Ratings:
Rated for 3.6/6KV (with a maximum test voltage of 11KV and AC test voltage of 2KV on control cores), these cables are designed to operate with a nominal voltage of 6000V. They are built to perform under extreme conditions, with ambient temperatures ranging from -40°C to +80°C for fixed installations and -20°C to +60°C for flexible installations.
Mechanical Strength & Flexibility:
With a permanent tensile strength of 15 N/mm² and a specified bending radius (2.3×D at 5 N/mm² and a minimum distance of 20×D with S-type directional changes), these cables are engineered to withstand the repeated bending, winding, and unwinding associated with chain operation.
Certifications & Compliance:
Conforming to key international standards such as DIN VDE 0250-813, DIN EN 60228/IEC 60228, DIN VDE 0298-4, and others (including MSHA and Russian GOST standards), these cables are rigorously tested and certified for safe use in mining environments.
Ideal Applications:
These mining coal cutter cables are tailored for:
Mobile Underground Mining Equipment:
Powering coal cutting machines and similar mobile units, ensuring reliable energy supply during operation.
Cable Protection Chains:
Designed specifically to be integrated into cable handling systems that absorb tensile forces during machine movement.Harsh Mining Environments:
Suitable for use in extreme underground conditions, where resistance to flame, oil, UV, and ozone is critical.
Frequently Asked Questions (FAQ)
Q: What is the primary purpose of the Type NTSKCGECWOEU cable?
A: It is designed to serve as a power supply connection cable for mobile equipment and machines, such as coal cutting machines, in underground mining operations.
Q: In what mining applications is this cable typically used?
A: It is primarily used for powering coal cutters and other mobile machinery in underground mines, especially where cables are routed through protection chains.
Q: How is the cable integrated into mining equipment?
A: The cable is installed in cable protection chains (cable handlers) that trail behind machines, absorbing tensile forces during movement.
Q: What is the rated voltage of this cable?
A: The cable is rated at 3.6/6KV, with a nominal operating voltage of 6000V.
Q: What type of conductors does the cable use?
A: It features very finely stranded, tinned copper conductors (class FS) for enhanced electrical performance and durability.
Q: How is the conductor assembly designed?
A: The cable uses a double concentric control/PE wire configuration, ensuring stable current distribution and effective control of electrical parameters.
Q: What material is used for the cable’s core insulation?
A: The core insulation is made from high-performance EPR rubber using proprietary compounds like PROTOLON and Special Compound 3GI3.
Q: Does the cable include a semi-conducting layer?
A: Yes, it includes an outer semi-conductive layer made from semi-conductive NBR easy-strip material, which helps to control the electric field.
Q: How are the cable cores identified?
A: The cable consists of three main cores arranged with double concentric control/PE conductor elements. The main cores are in a natural color, and the control cores are marked in blue.
Q: What type of outer sheath does the cable have?
A: The outer sheath is made from high-grade polychloroprene (PCP) rubber, available in proprietary compounds like PROTOFIRM and Special Compound >5GM5.
Q: Is the cable flame retardant?
A: Yes, it is flame retardant in accordance with EN/IEC 60332-1-2 standards, ensuring safety in explosive underground environments.
Q: Is the cable resistant to oil, ozone, and UV light?
A: Yes, the cable is designed to be oil-resistant, ozone-resistant, and UV-resistant, making it well-suited for harsh mining conditions.
Q: What are the standard certifications for this cable?
A: It is certified to DIN VDE 0250-813, DIN EN 60228/IEC 60228, DIN VDE 0298-4, DIN EN 60332-1-2/IEC 60332-1-2, DIN EN 60811-404/IEC 60811-404, GOST Fire Certificate, MSHA, and WUG Poland (for 6kV only).
Q: What is the test voltage for this cable?
A: The cable is proof-tested at 11 kV, ensuring robust insulation and performance under high stress.
Q: How does the cable handle short-circuit conditions?
A: It can withstand a maximum conductor temperature of 250°C during short-circuit conditions, ensuring reliability and safety.
Q: What is the maximum conductor temperature during normal operation?
A: The maximum conductor temperature during normal operation is 90°C.
Q: What are the ambient temperature ranges for installation and operation?
A: For fixed installations, the ambient temperature can range from -40°C to +80°C, and for flexible installations, from -20°C to +60°C.
Q: How does the cable perform in terms of flame retardancy?
A: It is manufactured to be flame retardant per EN/IEC 60332-1-2, minimizing fire hazards in explosive mine atmospheres.
Q: Is the cable oil resistant?
A: Yes, the cable is oil resistant, which is crucial for use in environments where machinery fluids are present.
Q: What measures ensure the cable's resistance to ozone?
A: The materials and compounds used in the cable’s construction provide excellent ozone resistance, extending its operational life underground.
Q: How does the cable manage electromagnetic interference (EMI)?
A: The cable's design, including finely stranded copper conductors and a semi-conducting layer, minimizes EMI, ensuring reliable signal transmission.
Q: What is the significance of the double concentric control/PE layout?
A: This layout improves electrical stability and ensures even distribution of current, which is vital for maintaining performance under mechanical stress.
Q: How does the cable’s construction enhance its flexibility?
A: The very fine stranded copper conductors and robust insulation materials allow the cable to endure repeated bending and winding without damage.
Q: What is the role of the cable protection chain in chain operation?
A: The chain absorbs the tensile forces generated by the moving equipment, protecting the cable from mechanical stress and extending its lifespan.
Q: Can the cable be used on both stationary and moving parts of mining equipment?
A: Yes, it is specifically designed for mounting on moving parts, making it ideal for both static installations and dynamic operations.
Q: How does the cable support digital and analog signal transmission?
A: Its high-quality construction and electrical properties allow it to transmit a full range of signals across the entire optical band reliably.
Q: What is the nominal current carrying capacity of the cable?
A: The current carrying capacity varies by cable configuration; specific values can be found in the technical specifications.
Q: What are the mechanical properties of the cable regarding tensile strength?
A: The cable has a permanent tensile strength of 15 N/mm², ensuring it can withstand significant mechanical stress.
Q: How is the bending radius specified for this cable?
A: The bending radius is defined as 2.3 times the cable diameter at 5 N/mm², with a minimum distance of 20 times the diameter for S-type directional changes.
Q: How does the cable ensure reliable performance in mobile underground mining?
A: With its robust construction, high-quality materials, and extensive certifications, the cable is built to perform reliably in the extreme conditions of underground mining.
Q: What industries benefit from using this cable?
A: It is primarily used in the mining industry, particularly in coal cutting operations, where mobile equipment requires robust, reliable power connections.
Q: How does this cable contribute to operational safety in mines?
A: By providing stable and reliable power connections, the cable ensures that critical mining equipment operates safely, reducing downtime and hazards.
Q: Is the cable designed for long-term use?
A: Yes, the cable is engineered for long-term performance in harsh underground conditions, ensuring durability and longevity.
Q: How is quality assured in the manufacturing of this cable?
A: It is manufactured in compliance with multiple international standards and certifications, ensuring it meets rigorous quality and safety criteria.
Q: Can this cable be easily integrated into existing mining infrastructure?
A: Yes, its design and compliance with standard specifications make it compatible with current mining equipment and networks.
Type NTSKCGECWOEU 3.6/6KV Mining Coal Cutter Cables for Chain Operation
High-Performance, Flame-Retardant Power Cables for Mobile Underground Mining Equipment Introducing the Type NTSKCGECWOEU cables – robust, flame-retardant power supply connections engineered for mobile underground mining equipment. Specifically designed for coal cutting machines, these cables are integrated into cable protection chains that absorb tensile forces during machine operation. Manufactured to stringent international standards (DIN, IEC, GOST, MSHA, and more), they feature finely stranded tinned copper conductors, high-performance EPR insulation, and durable polychloroprene sheathing. With outstanding oil, ozone, and UV resistance, these cables ensure reliable and safe performance in extreme underground conditions, supporting both fixed and flexible installations.
6/30/20216 min read