Type YHKGYFoyn 0.6/1 kV Mining Power cables
Flame retardant PVC armored mining power cable with individually shielded copper conductors
With radial field, PVC insulation, fire retardant PVC jacket, Round steel
Type YHKGYFoyn 0.6/1 kV Mining Power Cable
The Type YHKGYFoyn cable is a flame-retardant, PVC-armored power cable specifically engineered for underground mining applications. It is designed for low-voltage power distribution (0.6/1 kV) in harsh, explosive-prone environments, ensuring both electrical reliability and enhanced safety.
Construction and Materials
Copper Conductors:
The cable uses round, multi-stranded copper conductors compacted to Class 2 according to PM-EN 60228. These conductors ensure low resistance and high electrical efficiency.
Flame-Retardant PVC Insulation:
The conductors are insulated with a high-performance, flame-retardant PVC compound (Polwinitowa insulation, Type DIV 2 as per PN-HD 603 S1:2002). This insulation not only provides excellent dielectric properties but also withstands high temperatures.
Individual Shielding:
Each copper conductor is individually shielded with two layers of copper tape. This arrangement minimizes electromagnetic interference (EMI) and improves signal integrity.
Screen Core:
A copper wire is integrated within the twisted bundle of shielded conductors to enhance the overall structural integrity of the cable.
Filling Compound:
A rubber-based mixture is used as a filler to eliminate voids, ensuring even distribution of mechanical stress and improved durability.
Armoring:
The cable is mechanically protected by round steel wires, which serve as an armor layer. This reinforcement is critical for withstanding physical impacts and mechanical stresses typical in mining environments.
Flame-Retardant Outer Jacket:
The final protective layer is a flame-retardant PVC jacket (Polwinitowa type DIV 2) that does not propagate flames. The jacket is typically yellow, aiding in easy identification during installation.
Key Characteristics
Insulation Colors:
Available in natural color options—with variants featuring a red or green stripe for enhanced identification.
Operating Temperature:
The cable’s conductors can operate at temperatures up to +70°C, while the cable can be installed in ambient temperatures ranging from -50°C to +50°C.
High-Voltage Testing:
Each cable undergoes a 3.5 kV test to verify the insulation’s integrity and overall safety.
Bending Radius:
To avoid damage during installation, the minimum bending radius is set at 20 times the cable’s external diameter (20D).
Packaging Options:
Standard packaging is offered in 500 or 1000-meter drums, with the possibility of custom lengths and packaging arrangements.
Applications
The Type YHKGYFoyn 0.6/1 kV Mining Power Cable is ideally suited for:
Underground Mining Power Distribution:
It is used for transmitting electrical energy in low-voltage lines within the challenging climate and conditions of underground mines.
Hazardous Environments:
Its flame-retardant design and robust construction make it highly effective in areas where fire and explosion risks are a concern.
Additional Technical Details
Electrical Performance:
Detailed specifications such as conductor cross-sectional area, insulation and sheath thicknesses, overall cable diameter, weight per kilometer, and maximum conductor resistance at 20°C are provided in the technical data tables.
Current-Carrying Capacity Adjustments:
When multiple cables are installed in parallel, correction factors are applied to the current-carrying capacity. Ambient temperature adjustments (Kt factors) ensure safe operation in varying conditions.
Summary
The Type YHKGYFoyn 0.6/1 kV Mining Power Cable offers a robust and reliable solution for underground mining applications. With its flame-retardant PVC insulation and jacket, individually shielded copper conductors, and durable steel wire armor, this cable delivers excellent electrical performance and superior mechanical protection. Engineered to meet strict standards (ZN-TF 204:2006 and PN-HD 603 S1:2002), it is the ideal choice for safe and efficient power distribution in hazardous mining environments.
This detailed explanation highlights the cable's advanced construction, key characteristics, and suitability for the rigorous demands of underground mining, ensuring both performance and safety in critical applications.
Frequently Asked Questions (FAQ)
Q: What is the rated voltage of this cable?
A: The cable is rated for 0.6/1 kV, making it ideal for low-voltage applications in underground mining.
Q: What type of conductors does the cable use?
A: It uses round, multi-stranded copper conductors compacted to Class 2 according to PM-EN 60228 standards.
Q: How are the conductors individually protected?
A: Each conductor is individually shielded with two layers of copper tape to minimize electromagnetic interference (EMI).
Q: What does “radial field” refer to in this cable?
A: It indicates the uniform distribution of the electric field around the conductors, enhancing insulation performance.
Q: What insulation material is used?
A: The cable is insulated with a flame-retardant PVC compound (Polwinitowa insulation, Type DIV 2 as per PN-HD 603 S1:2002).
Q: How is flame retardancy achieved in this cable?
A: Both the insulation and the outer jacket are made from flame-retardant PVC that does not propagate flames.
Q: What type of armor does the cable have?
A: It is armored with round steel wires, providing robust mechanical protection.
Q: What is the outer jacket made of?
A: The outer jacket is a flame-retardant PVC layer (Polwinitowa type DIV 2), typically colored yellow.
Q: What insulation color options are available?
A: The insulation is available in natural color, natural with a red stripe, or natural with a green stripe for easy identification.
Q: Which standard does this cable comply with?
A: It meets the ZN-TF 204:2006 standard, ensuring it adheres to strict safety and performance guidelines.
Q: What is the maximum operating temperature of the conductor?
A: The conductor can operate continuously at temperatures up to +70°C.
Q: In what ambient temperature range can the cable be installed?
A: The cable is suitable for installation in ambient temperatures from –50°C to +50°C.
Q: What is the test voltage used for quality assurance?
A: Each cable undergoes a 3.5 kV test to verify the integrity of the insulation.
Q: What is the minimum bending radius for installation?
A: The minimum bending radius is 20 times the cable’s external diameter (20D) to avoid mechanical damage.
Q: How is the cable packaged for delivery?
A: It is typically supplied on drums of 500 or 1000 meters, with custom lengths available upon request.
Q: What are the primary applications of this cable?
A: It is designed for power transmission in low-voltage underground mining environments where safety and durability are critical.
Q: How does the cable withstand harsh mining conditions?
A: Its flame-retardant materials, robust PVC insulation and jacket, and durable steel wire armor ensure reliability under extreme conditions.
Q: How does individual shielding improve performance?
A: It reduces EMI and ensures stable power delivery by isolating each conductor.
Q: How does the cable protect against moisture?
A: The PVC insulation and jacket form a continuous barrier that resists water ingress.
Q: Is the cable suitable for explosive atmospheres?
A: Yes, its flame-retardant properties make it safe for use in environments with potential fire and explosion hazards.
Q: What is the purpose of the screen core in the cable?
A: A copper wire integrated within the twisted shielded conductors enhances the structural integrity of the cable.
Q: What role does the rubber-based filling compound play?
A: It fills voids between conductors, ensuring even stress distribution and improved mechanical stability.
Q: How does the cable’s design contribute to energy efficiency?
A: Optimized low-resistance copper conductors and effective shielding help minimize power losses during transmission.
Q: Can this cable be used in both new installations and retrofits?
A: Yes, its versatile design makes it suitable for both new mining projects and upgrades to existing systems.
Q: What type of environments is this cable best suited for?
A: It is ideal for the harsh, damp, and explosive-prone conditions commonly found in underground mines.
Q: How is the cable’s current-carrying capacity managed?
A: Detailed technical data provides current ratings, and derating factors are applied when multiple cables are installed in parallel.
Q: What additional measures ensure installation quality?
A: Adhering to the minimum bending radius and proper handling during installation are key to maintaining cable integrity.
Q: How does the cable’s armor enhance its durability?
A: The round steel wire armor offers superior mechanical protection against physical impacts and abrasion in mining environments.
Q: What testing does the cable undergo before shipment?
A: Each cable is rigorously tested at 3.5 kV to ensure insulation integrity and overall reliability.
Q: How does this cable improve safety in mining operations?
A: Its flame-retardant construction, robust moisture protection, and durable mechanical design significantly reduce fire risks and enhance overall system safety.
Q: What makes the cable’s design energy-efficient?
A: Its optimized conductor configuration minimizes resistance and energy loss, ensuring efficient power transmission.
Q: How does the cable support long-term operational reliability?
A: The use of high-quality materials and compliance with strict industry standards ensures longevity even under severe environmental conditions.
Q: What are the benefits of using painted steel wires for armoring?
A: Painted steel wires offer both corrosion resistance and high mechanical strength, essential for the rugged conditions in mines.
Q: Are there specific guidelines for parallel installation?
A: Yes, current-carrying capacity must be adjusted using correction factors when multiple cables are installed together.
Q: Why choose the Type YHKGYFoyn cable for mining applications?
A: Its specialized design for low-voltage, underground mining—featuring flame retardancy, robust insulation, effective EMI reduction, and durable armoring—makes it a reliable and safe choice for demanding mining environments.
Type YHKGYFoyn 0.6/1 kV Mining Power Cable
A high-performance, flame-retardant solution engineered specifically for underground mining applications. This robust low-voltage cable features individually shielded, multi-stranded copper conductors with flame-resistant PVC insulation and a durable, fire-retardant PVC jacket. Reinforced with round steel wire armor, it offers superior mechanical protection and reliable EMI reduction, ensuring efficient power distribution in harsh and explosive-prone mining environments. Designed to meet rigorous industry standards (ZN-TF 204:2006), this cable is the ideal choice for safe, dependable electrical installations in underground mines.
6/30/20216 min read