Frequently Asked Questions (FAQ)

• Q: What is the Type YnTKGX Mine Telecommunications Cable?

  
  A: It is a high-performance cable designed specifically for underground mining communications, supporting voice, data, and signaling applications.

• Q: What environments is this cable intended for?

  
  A: It is engineered for harsh, damp underground mining environments, including tunnels, shafts, and mining equipment installations.

• Q: What material are the conductors made of?

  
  A: The cable uses high-quality copper conductors with a diameter of 0.8 mm.

• Q: What type of insulation is used on the conductors?

  
  A: The conductors are insulated with polyethylene (PE), offering excellent dielectric properties.

• Q: How are the conductor pairs identified?

  
  A: Each pair is identified by standard color-coding (red, blue, green, yellow, and natural for additional pairs) to simplify wiring and troubleshooting.

• Q: What is the purpose of the gel filler in the cable?

  
  A: The gel filler helps maintain the cable’s shape and protects against mechanical stresses during installation and operation.

• Q: How does the cable prevent moisture ingress?

  
  A: A laminated aluminum foil barrier acts as a damp-proof seal to prevent moisture from penetrating the cable.

• Q: What material is used for the inner coating?

  
  A: The inner coating is made of PVC (polwinit), which provides additional insulation and protection.

• Q: What color is the inner coating?

  
  A: The inner coating is black, conforming to RAL 9005 standards.

• Q: What is the outer coating made of?

  
  A: The outer jacket is made of flame-retardant polwinit, ensuring high fire resistance.

• Q: What is the color of the outer coating?

  
  A: Like the inner coating, the outer jacket is black (RAL 9005).

• Q: What is the maximum loop resistance of the cable?

  
  A: The maximum pair resistance is 73.6 Ω/km, ensuring minimal signal loss over long distances.

• Q: What is the minimum insulation resistance specified for the cable?

  
  A: The cable features a minimum insulation resistance of 5000 MΩ×km, ensuring safe operation.

• Q: What is the effective capacitance of the cable?

  
  A: It has an effective capacitance of 60 µF/km (at 800 Hz), which is critical for signal integrity.

• Q: What is the minimum bending radius for this cable?

  
  A: The minimum bending radius is 15 times the external diameter (15D), allowing for flexible installation without damage.

• Q: What is the operating temperature range for this cable?

  
  A: It operates effectively between –5°C and +50°C.

• Q: What is the installation temperature range?

  
  A: The cable can be installed in temperatures ranging from –15°C to +60°C.

• Q: For which applications is the cable primarily used?

  
  A: It is intended for telecommunications networks, signaling systems, and integration with mining equipment in underground mines.

• Q: How does the cable’s design benefit mining communications?

  
  A: Its robust construction, moisture protection, and low electrical losses ensure reliable communications in challenging mining conditions.

• Q: What certifications or standards does the cable meet?

  
  A: The cable complies with ZN 86/MH 80iMP 13 K12098 and specification TT1-6410, ensuring it meets rigorous industry standards.

• Q: How does the laminated aluminum foil benefit the cable?

  
  A: It provides an effective barrier against moisture, crucial for maintaining performance in damp underground environments.

• Q: Can this cable handle high electromagnetic interference (EMI)?

  
  A: Yes, its design minimizes EMI, ensuring clear and reliable signal transmission.

• Q: How is the cable structured in terms of pair configurations?

  
  A: The cable is available in various configurations, including 2x2, 5x2, 16x2, and 33x2, to suit different communication requirements.

• Q: What does the “2x2” configuration mean?

  
  A: It indicates the cable contains 2 pairs arranged in a single layer, ideal for simple communication needs.

• Q: What advantages does a 5x2 configuration offer?

  
  A: A 5x2 configuration provides five pairs in one layer, offering more channels for complex systems while keeping the cable compact.

• Q: What are the benefits of multi-layer configurations like 16x2 and 33x2?

  
  A: Multi-layer configurations allow for more pairs without increasing the overall cable diameter significantly, ideal for high-density communications.

• Q: How does the cable’s construction enhance its durability in mining conditions?

  
  A: Its robust materials, moisture barriers, and flame-retardant properties make it resistant to mechanical stresses, fire, and environmental degradation.

• Q: Why is low capacitance important in a telecommunications cable?

  
  A: Low capacitance reduces signal delay and distortion, ensuring high-quality data transmission over long distances.

• Q: How does the cable’s insulation contribute to its performance?

  
  A: The high-quality polyethylene insulation provides excellent electrical performance and environmental protection.

• Q: Is this cable suitable for both voice and data communications?

  
  A: Yes, its electrical properties make it well-suited for a wide range of telecommunications applications, including voice and data.

• Q: How does the cable ensure reliable performance in harsh mining environments?

  
  A: With its comprehensive moisture sealing, robust outer jacket, and strict electrical performance parameters, the cable is built to withstand the rigors of underground mining.

• Q: What maintenance practices are recommended for this cable?

  
  A: Regular inspections for physical damage, cleaning of the installation area, and adherence to proper bending and temperature guidelines are essential to ensure long-term reliability.