Feichun XKDTT 12/20 (24) kV Distribution and Interconnection Cable: Reliable Power for Diverse Applications
Introduction: Robust and Versatile Power Distribution Solutions
Power distribution is essential for the functioning of industrial and power generation networks.
A reliable power supply is key to ensuring smooth operations across various sectors, and for this, selecting the right cable solution is crucial. Feichun has been at the forefront of providing high-quality cable solutions designed to meet the diverse needs of power networks.
The Feichun XKDTT 12/20 (24) kV Distribution and Interconnection Cable is engineered to offer unmatched performance, versatility, and durability for various installation environments.
This medium-voltage distribution and interconnection cable is suitable for a wide range of applications, including underground installations, duct systems, aerial installations, indoor spaces, and underwater environments.
The longitudinal watertight construction of the cable ensures excellent protection against water ingress, a crucial factor for maintaining long-term cable integrity.
In this article, we will explore the technical specifications, construction, and practical considerations for the Feichun XKDTT series, specifically focusing on the 12/20 (24) kV variant, which is designed to meet the stringent demands of both industrial and power generation networks.
Cable Construction and Technical Specifications: Engineered for Reliable Performance
Feichun XKDTT 12/20 (24) kV Cable is built with several layers, each contributing to its high performance, durability, and versatility. Let’s break down its key components:
1. Conductor
The cable features bare, round stranded Class 2 copper conductors as per IEC 60228 (and by implication DIN VDE 0295).
The choice of copper ensures efficient current-carrying capacity, providing optimal electrical performance. Additionally, copper is mechanically robust, ensuring that the conductor remains intact under typical operating conditions.
2. Inner and Outer Semi-Conducting Layers
The cable is equipped with semi-conducting layers on both the inner and outer sides of the insulation.
These layers serve to ensure a uniform electric field distribution, preventing partial discharges within the insulation, which could otherwise lead to insulation failure over time.
3. Insulation: XLPE (Cross-linked Polyethylene)
The XLPE insulation is a standout feature of the Feichun XKDTT cable. This material offers superior electrical and thermal properties. It boasts high dielectric strength, minimal dielectric losses, and excellent resistance to thermal aging.
These qualities ensure that the cable can maintain its integrity and performance even in high-temperature environments.
4. Screen Construction
The copper wire screen with a counter-helix tape provides effective electromagnetic shielding, which is essential for preventing electromagnetic interference in power systems.
Additionally, this screen facilitates the safe conduction of fault currents, ensuring the safety of both the cable and the network in the event of a fault.
5. Outer Sheath: Polyethylene (PE)
The outer sheath is made from Polyethylene (PE), which is known for its excellent mechanical strength, abrasion resistance, chemical resistance, UV resistance, and water resistance.
These properties make it highly suitable for harsh outdoor and industrial environments.
6. Longitudinal Water Blocking
The longitudinal water-blocking feature prevents water from entering and propagating along the length of the cable, ensuring that water damage does not compromise the cable’s performance.
This is particularly beneficial in underground or wet environments.
Key Electrical Characteristics
| Property |
Value |
| Rated Voltage (U0/U) |
12/20 (24) kV |
| Test Voltage |
42 kV |
| Maximum Conductor Temperature |
90°C |
| Maximum Conductor Temperature (Short Circuit) |
250°C |
| Ambient Temperature |
Min: -5°C |
| Permanent Tensile Strength |
50 N/mm² |
| Bending Radius |
15 x OD (Outer Diameter) |
The rated voltage of 12/20 (24) kV is ideal for medium-voltage power systems, while the maximum conductor temperature of 90°C allows for greater current-carrying capacity and flexibility in various installations.
The short-circuit temperature rating of 250°C provides extra protection in case of fault conditions, ensuring safe operation.
Compliance with Industry Standards: Ensuring Quality and Safety
Feichun’s XKDTT 12/20 (24) kV cable complies with several key international standards, ensuring it meets the highest safety and performance requirements. Some of these standards include:
- HD 620 10N: This standard covers polymeric insulated power cables for rated voltages from 3.6/6 (7.2) kV up to 20.8/36 (42) kV.
- DIN VDE 0276-620: This standard ensures that cables with extruded solid insulation are suitable for medium-voltage applications.
- IEC 60502-2: This standard specifies cables with extruded insulation for voltages ranging from 6 kV to 30 kV.
- DIN EN 50575: Covers reaction to fire requirements for power, control, and communication cables.
Adherence to these standards ensures that the Feichun XKDTT cable offers optimal performance, safety, and suitability for diverse installation environments, providing peace of mind for engineers and installers alike.
Practical Considerations and Potential Challenges: Addressing Real-World Installations
Installation
When installing Feichun XKDTT cables, proper handling and storage are essential to avoid damage to the cable’s outer sheath.
Following the bending radius and adhering to installation techniques for different environments (e.g., direct burial, ducts, aerial installations) will ensure the cable's longevity and performance. It’s critical to use the correct jointing and termination methods to maintain the cable's integrity.
Some of the practical installation considerations include:
- Soil conditions and ground temperature for underground installations.
- Thermal resistivity to ensure proper cable sizing for underground deployments.
- Mechanical stress and vibration protection during installation and operation.
Operating Environment
Exposure to harsh environmental conditions, such as temperature fluctuations, moisture, and chemicals, must be considered during installation. Feichun XKDTT cables are designed to withstand these elements.
However, rodent or termite damage may still pose a risk in underground applications, and protective measures should be implemented accordingly.
Maintenance and Inspection
Regular visual inspections of the outer sheath and joints are necessary to ensure that the cable maintains its integrity over time. Electrical testing should be carried out to check for potential issues with the insulation and conductivity.
Conclusion: Feichun XKDTT: Reliable Power Distribution for Demanding Applications
In conclusion, the Feichun XKDTT 12/20 (24) kV Distribution and Interconnection Cable is a versatile, reliable, and robust solution for medium-voltage power systems in industrial and power generation networks.
With its superior construction, compliance with international standards, and ability to withstand demanding environmental conditions, it offers a dependable option for power distribution in various applications.
Proper selection, installation, and maintenance are crucial to maximizing the cable's performance and longevity. For more information, technical support, or product inquiries, feel free to contact Feichun Cable.
Appendix (Optional)
The following provides more detailed technical datasheets, installation guidelines, and best practices for medium-voltage cable installations:
- Current-carrying capacity tables for different installation conditions (referencing IEC 60502-2, Table B.2, column 2).
- Detailed installation guidelines for direct burial, duct systems, and aerial installations.
- A glossary of technical terms for easy reference.
By following these guidelines, engineers and contractors can ensure the reliable operation of Feichun XKDTT cables in any power distribution or interconnection project.
