Feichun PROTOLON (ST) 3E NTSCGEWOEU 12/20KV Flexible Power Supply Cable for Water Applications
Feichun PROTOLON (ST) 3E NTSCGEWOEU 12/20KV Flexible Power Supply Cable for Water Applications
Feichun's PROTOLON (ST) 3E NTSCGEWOEU 12/20KV flexible cable is the ultimate solution for power transmission in water environments. Designed to withstand extreme mechanical stresses, this cable is ideal for use with dredgers, floating docks, pumps, and other water-based applications.
Whether operating in sewage, saltwater, or brackish water, it guarantees reliable performance at depths of up to 500 meters.
In this guide, we will explore the key features, technical specifications, and practical benefits of this remarkable cable, along with detailed installation advice to help you achieve the best results.
Key Features and Benefits
Unparalleled Mechanical Strength
- The cable is engineered to handle high torsional stress and tensile forces, ensuring longevity and reliability in demanding applications.
Superior Water Resistance
- Crafted with a CPE outer sheath, the cable offers exceptional resistance to seawater, brackish water, and sewage, making it suitable for diverse aquatic environments.
Enhanced Durability
- With robust inner and outer sheaths, it withstands harsh operating conditions, including prolonged exposure to UV, ozone, and oils.
Flexible for All Installations
- Designed for both fixed and flexible setups, the cable remains operational in temperatures ranging from -40°C to 80°C in fixed installations and -25°C to 60°C in flexible conditions.
High Voltage Capacity
- Rated for 12/20KV (24KV) with a test voltage of 29KV, the cable ensures efficient and safe power transmission.
Compliance with Global Standards
- Certified to meet stringent standards like DIN VDE 0250-813, DIN EN 60332-1-2, and MSHA P-189-4, ensuring high-quality and safe operation.
Applications and Use Cases
Marine and Water-Based Operations
- Dredgers: Powering large dredging machines operating in challenging underwater environments.
- Floating Docks: Providing reliable power connections to floating infrastructure.
- Pumps: Ideal for deep-water pumping systems.
Industrial Water Handling
- Sewage Treatment Plants: Designed to handle corrosive and high-moisture environments.
- Saltwater and Brackish Water Applications: Suitable for industrial operations requiring high water resistance.
Other Extreme Applications
- Projects requiring cables that can endure torsional stress and mechanical wear and tear, such as underwater mining and offshore installations.
Technical Specifications
| Property | Specification |
|---|---|
| Rated Voltage U0/U (Um) | 12/20 (24) kV |
| Test Voltage | 29 kV |
| Nominal Voltage | 20,000 V |
| Max. Conductor Temperature | 90°C (operating), 250°C (short circuit) |
| Environmental Resistance | Flame retardant (EN/IEC 60332-1-2), UV, ozone, and oil resistant |
| Maximum Water Depth | 500 m |
| Core Insulation Material | EPR rubber |
| Inner Sheath | Waterproof EPR compound |
| Outer Sheath | Chlorinated Polyethylene (CPE) |
| Bending Radius (fixed) | 6 x D |
| Bending Radius (flexible) | 10 x D |
Common Challenges and Solutions
| Challenge | Solution |
|---|---|
| Operation in corrosive environments | CPE outer sheath ensures superior resistance to seawater and chemicals. |
| High mechanical stress | Robust construction with reinforced sheaths and concentric protective-earth conductors. |
| Torsional stress and bending | Compliant with VDE 0298-3 bending radius rules for safe and reliable installation. |
| Power supply in deep-water conditions | Certified for depths of up to 500 meters, ensuring reliable operation in underwater applications. |
Installation Guidelines
Preparation
- Assess the environmental and mechanical requirements to select the appropriate cable type.
- Verify compliance with standards like VDE 0298-3 to ensure safe installation.
Handling
- Avoid excessive bending or twisting beyond the specified torsional stress limit (+/- 25°/m).
- Follow the bending radius guidelines: 6 x D for fixed installations and 10 x D for flexible installations.
Termination
- Ensure proper connection of concentric protective-earth conductors for safety.
- Use waterproof terminations compatible with the cable's materials.
Standards and Certifications
This cable meets and exceeds the following certifications and standards:
- DIN VDE 0250-813: Cable construction.
- DIN EN 50525-2-21: General requirements for flexible cables.
- IEC 60811-404: Test methods for insulating materials.
- DIN EN 60332-1-2: Flame retardancy.
- GOST -R/-K/-B: Russian Federation Fire Certification.
- MSHA P-189-4: Ensuring safe operation in hazardous environments.
Conclusion
The Feichun PROTOLON (ST) 3E NTSCGEWOEU 12/20KV cable is a robust and reliable solution for underwater power applications. Its combination of high mechanical strength, excellent water resistance, and compliance with global standards makes it the preferred choice for challenging environments.
Whether you're powering dredgers, connecting floating docks, or managing sewage operations, this cable delivers unmatched performance and durability.
Invest in Feichun PROTOLON cables for dependable and efficient power solutions. For more information, contact our technical support team or download the product datasheet.


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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