NTSCGEWOEU 3 - 30 KV MEDIUM VOLTAGE FLEXIBLE CABLES FOR USE IN WATER

Feichun NTSCGEWOEU 3 - 30 kV Medium Voltage Flexible Cables are specially designed for use in water applications, including power supply for dredgers, floating docks, pumps, and similar systems where high mechanical stresses are common. These cables are engineered for demanding environments, including sewage, saltwater, and brackish water up to depths of 500 meters.

What Are the Key Features of Feichun NTSCGEWOEU Cables?

Structure and Composition of Feichun NTSCGEWOEU Cables

Feichun NTSCGEWOEU cables are designed for both durability and flexibility, ensuring they can handle mechanical stresses and harsh environmental conditions, particularly when submerged in water. Here’s an in-depth look at the construction of these cables:

• Conductor: The core of the cable consists of finely stranded tinned copper, which is flexible (class 5 PE) and resistant to corrosion. The conductor is split into three in the outer interstices, which contributes to enhanced mechanical properties.

• Inner Semi-Conducting Layer: The inner layer is made from semi-conductive EPR, which helps in distributing electrical stress uniformly and prevents high-voltage breakdown.

• Core Insulation: EPR rubber with a special compound (3GI3) is used as the core insulation. This layer provides excellent electrical and thermal properties, ensuring the cable performs optimally under high-voltage conditions.

• Core Arrangement: Three main conductors are laid up with a protective earth conductor, split into three in the outer interstices to ensure reliability in various applications.

• Outer Semi-Conducting Layer: A semi-conductive EPR layer is used to further protect the cable and ensure uniform electric field distribution.

• Sheathing:

  • The inner sheath is made of a special EPR compound for waterproofing.

  • The outer sheath uses chlorinated polyethylene (CPE), which offers excellent resistance to mechanical stress, UV, and sea water, making the cable ideal for underwater environments.

What Are the Technical Specifications of Feichun NTSCGEWOEU Cables?

Electrical Parameters

Feichun NTSCGEWOEU cables come in various voltage ratings, making them suitable for different types of power supply systems. Here’s a breakdown of the key electrical parameters:

• Rated Voltage U₀/U (Um): Available in various ratings such as 3.6/6 kV, 6/10 kV, 8.7/15 kV, 12/20 kV, 14/25 kV, and 18/30 kV.

• Test Voltage: The cables undergo rigorous testing, with ratings such as 11 kV, 17 kV, 24 kV, 29 kV, and up to 50 kV, depending on the specific model.

• Nominal Voltage U: Ranges from 6,000 V to 35,000 V depending on the application.

Mechanical Parameters

• Torsional Stress: The cables can withstand torsional stress of ±100°/m.

• Permanent Tensile Strength: 15 N/mm².

• Bending Radius: For fixed installations, the bending radius is 6x D, while for flexible operations, it is 10x D.

Chemical and Thermal Properties

• Flame Retardant: These cables conform to EN/IEC 60332-1-2 standards for fire resistance.

• Oil Resistant: Yes, the cables are resistant to oils, enhancing their durability.

• Ozone and UV Resistant: They offer resistance to ozone and ultraviolet rays, making them suitable for long-term outdoor use.

• Sea Water Resistance: Exceptional resistance, with a maximum water depth of 500 meters.

Where Can Feichun NTSCGEWOEU Cables Be Used?

Applications of Feichun NTSCGEWOEU Cables

Feichun NTSCGEWOEU cables are designed to be highly versatile and suitable for a range of challenging applications. Here are some of the key uses:

1. Dredgers and Floating Docks: These cables are often used in marine applications, such as connecting power supplies to dredgers and floating docks, where exposure to saltwater and mechanical wear is a significant concern.

2. Pumps in Water: The cables are suitable for powering pumps used in water treatment plants, sewage systems, or other water-based systems. Their water resistance and durability make them a reliable choice for these critical infrastructure applications.

3. Sewage, Saltwater, and Brackish Water: Due to their excellent resistance to corrosion and seawater, these cables are ideal for use in sewage and water applications where the cables are constantly exposed to high moisture and salt conditions.

4. Underwater Installations: Feichun NTSCGEWOEU cables can be used in depths of up to 500 meters, making them suitable for underwater power transmission.

What Are the Common FAQs About Feichun NTSCGEWOEU Cables?

1. What Is the Maximum Depth These Cables Can Be Used at?

Feichun NTSCGEWOEU cables are designed for underwater use up to a depth of 500 meters, making them ideal for deepwater applications, including dredging and offshore power supply.

2. What Makes These Cables Suitable for Use in Water?

These cables are specifically designed to be water-resistant, with materials such as EPR rubber and CPE sheathing. The copper conductors are tinned to prevent corrosion, and the cable’s design ensures protection against mechanical stresses common in water-based environments.

3. How Do I Install Feichun NTSCGEWOEU Cables?

For fixed installations, the minimum bending radius is 6 times the cable diameter (6x D), while for flexible installations, it is 10 times the diameter (10x D). Ensure the cables are properly sealed and protected, especially in underwater and high-stress applications.

4. What Are the Advantages of Feichun NTSCGEWOEU Cables Over Other Cables?

Feichun NTSCGEWOEU cables offer superior durability in harsh environments, with resistance to water, salt, oil, ozone, UV, and mechanical stress. They are designed for high-performance and reliability, making them ideal for use in dredgers, pumps, and underwater installations.

Feichun NTSCGEWOEU Cables: South African Case

In South Africa, these cables are often used in mining and water treatment applications, where environmental conditions demand high-performance solutions. A local mining company recently implemented Feichun NTSCGEWOEU cables for powering water pumps in a remote coastal mining operation. The cables proved to be highly reliable, with no significant wear or damage after several years of operation under challenging conditions.

Why Choose Feichun NTSCGEWOEU Cables?

Feichun NTSCGEWOEU 3 - 30 kV Medium Voltage Flexible Cables are an excellent choice for applications requiring flexibility, water resistance, and high mechanical strength. Whether used in dredgers, floating docks, or underwater power systems, these cables offer the durability needed for demanding environments.