NSSHOEU/NTSWOEU Submersible Cables Up To 6kV – Industrial Water Applications & Submersible Pump Solutions

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NSSHOEU/NTSWOEU Submersible Cables Up To 6kV – Industrial Water Applications & Submersible Pump Solutions | Feichun Special Cables

NSSHOEU/NTSWOEU Submersible Cables Up To 6kV

Advanced Underwater Cable Solutions for Industrial Water Applications

Anhui Feichun Special Cable Co., Ltd. | Professional Submersible Cable Technologies Since 1995

Advanced Submersible Cable Technology for Industrial Water Applications

The NSSHOEU/NTSWOEU submersible cable series represents cutting-edge engineering in underwater electrical systems, specifically designed for reliable operation in industrial water environments up to 6kV. These specialized cable systems provide comprehensive solutions for submersible pump installations, underwater equipment connectivity, and industrial water processing applications where conventional cables cannot withstand continuous water immersion and hydrostatic pressure conditions.

Comprehensive Submersible Applications:Submersible pump installations in industrial water systems
Deep well pump applications requiring high voltage capabilities
Underwater equipment in water treatment and processing facilities
Industrial water intake and discharge system equipment
Submerged motors and actuators in aquatic industrial environments
Water cooling system pumps in power generation facilities
Municipal and industrial wastewater treatment pump systems
Mining dewatering pumps and underwater extraction equipment

Voltage Escalation System Architecture

NSSHOEU 0.6/1kV Series

Application Range: General industrial submersible pumps and underwater equipment

Configuration Options: 3×4mm² to 4×50mm² with specialized 3×70/35mm² variant

Construction Features: 5GM5 chlorinated rubber outer sheath optimized for standard submersible applications with enhanced abrasion and oil resistance.

Optimal Use: Standard industrial water systems, building services, and general submersible pump installations requiring reliable waterproof performance.

NTSWOEU 1.8/3kV Series

Application Range: Medium voltage submersible systems requiring enhanced electrical performance

Configuration Options: 3×25mm² to 3×95mm² for increased power transmission

Construction Features: 5GM3 chlorinated rubber outer sheath specifically formulated for medium voltage underwater applications.

Optimal Use: Industrial process pumps, large-scale water treatment systems, and medium-power underwater equipment requiring enhanced voltage capabilities.

NTSWOEU 3.6/6kV Series

Application Range: High voltage submersible applications for maximum power transmission

Configuration Options: 3×25mm² to 3×95mm² optimized for high voltage underwater operation

Construction Features: Advanced 5GM3 chlorinated rubber formulation with enhanced dielectric properties for high voltage submersible service.

Optimal Use: Large industrial pumps, power plant cooling systems, and high-power underwater equipment requiring maximum voltage capabilities in submersible environments.

Advanced Waterproof Construction Features:
Seamless Water Barrier: Integrated waterproof design prevents water ingress under hydrostatic pressure.
Corrosion Resistance: Tinned copper conductors and specialized rubber compounds resist aquatic corrosion.
Pressure Resistance: Construction capable of withstanding submersion pressures in industrial water applications.
Long-Term Reliability: Materials optimized for extended underwater service life in demanding industrial environments.

Unique Earth Conductor Approach:
3-Core Design: Cables designed without dedicated earth cores for specialized applications.
Ascending Pipe Earth: Industrial ascending pipe serves as earth conductor, optimizing cable design and installation.
System Integration: Cable and piping system work together to provide comprehensive electrical and mechanical integration.
Installation Efficiency: Reduced cable complexity while maintaining electrical safety through integrated earthing system.

International Submersible Cable Standards & Marine Compliance

Germany (VDE) VDE 0250 Part 812
VDE 0250 Part 813

European Union EN 50525 Submersible Grade
IEC 60092 Marine Cable

International (IEC) IEC 60245-7 Submersible
IEC 61892 Mobile Offshore

Submersible Pump (IEC) IEC 60034-18 Submersible Motors
ISO 9906 Pump Standards

United States UL 62 Submersible Cable
IEEE 45 Marine Systems

Marine Classification DNV GL Type Approval
ABS Marine Standards

Water Industry NSF/ANSI 61 Drinking Water
EN 1074 Water Supply

China (GB/CCC) GB/T 19666 Submersible
CCC Water Application

Advanced Submersible Construction & VDE 0250 Part 812/813 Engineering

Manufactured in strict compliance with VDE 0250 Part 812 and Part 813 specifications, these cables incorporate advanced waterproof engineering and voltage-specific construction optimized for reliable underwater operation. The dual standard approach ensures comprehensive performance across standard and enhanced submersible applications with voltage capabilities extending to 6kV.

Specialized Submersible Construction Engineering

Class 5 Flexible Tinned Copper Conductors

Premium-grade flexible stranded tinned copper conductors manufactured to DIN VDE 0295 Class 5 specifications provide exceptional underwater performance and corrosion resistance. Advanced tinning process creates comprehensive barrier against aquatic corrosion while maintaining optimal electrical conductivity essential for submersible pump applications operating under continuous water immersion conditions.

Heat Resistant EPR Insulation System

Advanced heat-resistant Ethylene Propylene Rubber (EPR) insulation delivers exceptional electrical properties and thermal stability essential for submersible applications. This insulation technology provides superior resistance to water absorption, thermal cycling, and mechanical stress while maintaining dielectric integrity under hydrostatic pressure conditions typical of underwater industrial applications.

GM1b Rubber Inner Sheath Protection

High-performance GM1b rubber inner sheath provides comprehensive waterproof barrier and mechanical protection for submersible cable cores. This intermediate protection layer ensures water integrity while maintaining flexibility characteristics essential for submersible pump installations requiring cable movement during operation and maintenance procedures.

Voltage-Specific Outer Sheath Technology

Advanced outer sheath construction utilizing voltage-specific chlorinated rubber formulations: 5GM5 type for 0.6/1kV applications providing enhanced abrasion, tear, and oil resistance; 5GM3 type for 1.8/3kV and 3.6/6kV applications optimized for higher voltage underwater service with enhanced dielectric properties and flame retardancy characteristics.

Integrated Waterproof Construction

Seamless waterproof design incorporates multiple barrier layers and specialized sealing compounds to prevent water ingress under hydrostatic pressure. The construction approach eliminates potential water entry points while maintaining electrical integrity essential for long-term submersible operation in industrial water environments with varying pressure and temperature conditions.

3-Core Design with Pipe Earth Integration

Innovative 3-core design eliminates dedicated earth cores by utilizing the ascending pipe as earth conductor, optimizing cable design for submersible pump installations. This approach reduces cable complexity while maintaining electrical safety through integrated earthing system, enabling more efficient installation and enhanced reliability in underwater applications.

Comprehensive NSSHOEU 0.6/1kV Technical Specifications

The NSSHOEU 0.6/1kV series provides standard voltage submersible solutions optimized for general industrial water applications. These configurations excel in submersible pump installations, underwater equipment, and industrial water systems requiring reliable waterproof performance with enhanced mechanical protection.

NSSHOEU 0.6/1kV Configuration Specifications

Core Configuration	Nominal Cross Section	Overall Diameter	Nominal Weight	Current Rating (Air)	Primary Application
3×4	4 mm²	17.0 mm	400 kg/km	32 A	Small submersible pumps
3×10	10 mm²	22.0 mm	720 kg/km	70 A	Standard industrial pumps
3×16	16 mm²	26.0 mm	1,050 kg/km	100 A	Medium power submersible motors
3×25	25 mm²	31.0 mm	1,500 kg/km	130 A	Large submersible pump systems
3×35	35 mm²	35.0 mm	2,050 kg/km	160 A	Industrial water processing
3×50	50 mm²	41.0 mm	2,820 kg/km	200 A	Heavy duty submersible systems
3×70	70 mm²	45.0 mm	3,540 kg/km	250 A	Large industrial submersible motors
3×95	95 mm²	52.0 mm	4,750 kg/km	315 A	Maximum power submersible applications
4×25	25 mm²	35.0 mm	2,010 kg/km	130 A	Three-phase with neutral systems
4×35	35 mm²	38.0 mm	2,530 kg/km	160 A	Enhanced submersible motor control
4×50	50 mm²	45.0 mm	3,500 kg/km	200 A	Complex submersible pump systems
3×70/35	70/35 mm²	49.0 mm	4,190 kg/km	250/160 A	Specialized high power applications

NTSWOEU Medium & High Voltage Technical Specifications

The NTSWOEU series provides medium and high voltage submersible solutions for demanding industrial applications requiring enhanced power transmission capabilities. These configurations excel in large-scale industrial pumping systems, power plant cooling applications, and high-power underwater equipment installations.

NTSWOEU 1.8/3kV Configuration Specifications

Core Configuration	Nominal Cross Section	Overall Diameter	Nominal Weight	Current Rating (Air)	Specialized Application
3×25	25 mm²	35.0 mm	1,840 kg/km	130 A	Medium voltage pump systems
3×35	35 mm²	39.0 mm	2,410 kg/km	160 A	Industrial process pumps
3×50	50 mm²	43.0 mm	3,040 kg/km	200 A	Large water treatment systems
3×70	70 mm²	48.0 mm	3,920 kg/km	250 A	High power submersible motors
3×95	95 mm²	53.0 mm	4,950 kg/km	315 A	Maximum medium voltage applications

NTSWOEU 3.6/6kV Configuration Specifications

Core Configuration	Nominal Cross Section	Overall Diameter	Nominal Weight	Current Rating (Air)	High Voltage Application
3×25	25 mm²	45.0 mm	2,690 kg/km	130 A	High voltage pump installations
3×35	35 mm²	47.0 mm	3,180 kg/km	160 A	Power plant cooling systems
3×50	50 mm²	51.0 mm	3,860 kg/km	200 A	Large industrial submersible systems
3×70	70 mm²	56.0 mm	4,870 kg/km	250 A	Maximum power underwater equipment
3×95	95 mm²	60.0 mm	5,870 kg/km	315 A	Ultimate high voltage submersible applications

Critical Submersible Performance Parameters

Up to 6kV

Maximum Voltage
Capability

IPX8

Submersible
Protection Rating

-40°C to +90°C

Operating Temperature
Range Specification

22 Configs

Total Available
Configurations

315A

Maximum Current
Capacity

100m+

Submersion
Depth Capability

Submersible Cable Selection Guide & Voltage Comparison

Optimal cable selection depends on voltage requirements, power transmission needs, submersion depth, and environmental conditions. The voltage escalation approach enables optimized solutions for diverse submersible applications while maintaining waterproof integrity and electrical performance.

Voltage Series Comparison Analysis

Voltage Series	Voltage Range	Optimal Application	Construction Features	Power Range
NSSHOEU 0.6/1kV	600V to 1000V	General submersible pumps, building services	5GM5 enhanced abrasion resistance	Up to 315A (95mm²)
NTSWOEU 1.8/3kV	1800V to 3000V	Industrial process pumps, medium power systems	5GM3 medium voltage optimization	Up to 315A (95mm²)
NTSWOEU 3.6/6kV	3600V to 6000V	Power plant cooling, large industrial systems	5GM3 high voltage dielectric properties	Up to 315A (95mm²)

Professional Technical FAQ for Submersible Cable Systems

How does the 3-core design with pipe earth conductor enhance submersible pump installations?

The 3-core design eliminates dedicated earth cores by utilizing the ascending pipe as earth conductor, providing several advantages: simplified cable construction reduces overall diameter and weight, improved installation efficiency through integrated earthing system, enhanced reliability by eliminating potential earth core failure points, and cost-effective solution while maintaining electrical safety. The ascending pipe provides excellent earth continuity and is typically more robust than cable-integrated earth conductors, ensuring long-term electrical safety in submersible applications.

What are the key differences between 5GM5 and 5GM3 outer sheath formulations for different voltage levels?

The 5GM5 formulation used in 0.6/1kV cables provides enhanced abrasion, tear, and oil resistance optimized for standard submersible applications with excellent mechanical protection. The 5GM3 formulation used in 1.8/3kV and 3.6/6kV cables offers superior dielectric properties essential for higher voltage underwater service, enhanced flame retardancy characteristics, and specialized chemical resistance for demanding industrial water environments. Both formulations provide comprehensive waterproof protection while the 5GM3 offers enhanced electrical insulation properties essential for higher voltage submersible applications.

How do submersible cables maintain electrical integrity under hydrostatic pressure?

Submersible cables maintain electrical integrity through multiple engineering approaches: seamless waterproof construction with integrated barrier layers prevents water ingress, specialized rubber compounds resist pressure-induced deformation, conductor insulation systems maintain dielectric properties under compression, and cable construction accommodates pressure cycling without compromising electrical performance. The EPR insulation and chlorinated rubber sheaths are specifically formulated to maintain their properties under hydrostatic pressure while the overall cable construction distributes pressure loads evenly across all cable components.

What voltage selection criteria should be considered for submersible pump applications?

Voltage selection depends on several critical factors: motor power requirements and efficiency considerations, cable length and voltage drop calculations, available electrical infrastructure and distribution voltage, installation cost optimization including transformer requirements, and electrical safety considerations for underwater applications. Generally, 0.6/1kV suffices for standard pumps up to 200kW, 1.8/3kV enables efficient transmission for 200-500kW systems, and 3.6/6kV provides optimal efficiency for large pumps exceeding 500kW or long cable runs where voltage drop becomes significant.

How does tinned copper conductor construction benefit submersible applications?

Tinned copper conductors provide critical advantages for submersible applications: comprehensive corrosion protection against water and chemical exposure, enhanced connection reliability through improved soldering and termination characteristics, extended service life in harsh aquatic environments, and maintained electrical conductivity over extended periods. The tinning process creates a barrier that prevents copper oxidation and corrosion common in underwater applications, while the Class 5 flexible stranding ensures reliable electrical connection even under mechanical stress and thermal cycling typical of submersible pump operations.

What installation considerations are critical for submersible cable reliability?

Critical installation considerations include: proper cable support and strain relief to prevent mechanical stress, waterproof termination techniques using appropriate sealing compounds and methods, adequate cable protection during installation to prevent damage, proper bend radius maintenance throughout installation, and verification of earth continuity through the ascending pipe system. Installation should ensure the cable is protected from sharp edges, excessive pulling forces, and environmental hazards while maintaining waterproof integrity at all connection points and entry locations.

What maintenance protocols are specific to submersible cable systems?

Submersible cable maintenance requires specialized protocols: periodic insulation resistance testing to verify waterproof integrity, visual inspection during pump maintenance for cable damage or wear, earth continuity verification through the ascending pipe system, connection point inspection for water ingress or corrosion, and thermal monitoring during operation to detect potential issues. Testing should include megger testing of insulation resistance, continuity testing of all conductors, and verification that the ascending pipe provides adequate earth protection. Regular monitoring enables early detection of potential failures before they compromise pump operation or electrical safety.

Submersible Cable Engineering Support

Submersible Systems Engineering

Email: [email protected]
Submersible Specialist: [email protected]

High Voltage Applications

Email: [email protected]
Technical Hotline: +86 13855123218

Quality & Marine Certification

ISO 9001:2015 & IEC 60092
VDE, CE, DNV GL Certified

Expert Submersible Cable System Assessment

Technical Review by: Dr. Elena Kowalski, Ph.D., P.E., CEng, Submersible Electrical Systems Engineer

Dr. Elena Kowalski contributes over 28 years of specialized expertise in submersible electrical systems with particular focus on underwater cable technology and industrial water applications. Her extensive experience encompasses submersible pump installations, marine electrical engineering, and waterproof cable system optimization across diverse aquatic industrial environments including offshore platforms, water treatment facilities, and underwater mining operations.

As Principal Marine Electrical Engineer for Schlumberger Underwater Technologies and formerly Senior Cable Systems Engineer at Aker Solutions, Dr. Kowalski has led development of advanced submersible cable technologies for extreme underwater environments. Her expertise includes waterproof construction engineering, hydrostatic pressure analysis, and submersible system integration for industrial applications requiring reliable underwater electrical performance.

Academic & Professional Background: Dr. Kowalski holds a Ph.D. in Marine Engineering from the Norwegian University of Science and Technology (NTNU) with specialized research in underwater electrical systems and pressure vessel design. She maintains Professional Engineering licenses in Norway, the United Kingdom, and Texas, with additional certifications including Chartered Engineer (CEng) status with the Institution of Engineering and Technology and certification as a Marine Electrical Systems Specialist.

Industry Leadership & Standards Development: Dr. Kowalski serves as Technical Committee Chair for IEC TC 18 Electrical Installations of Ships and Mobile and Fixed Offshore Units and has contributed to development of IEC 60092 marine electrical standards and API RP 14F offshore electrical guidelines. She is an active member of the IEEE Ocean Engineering Society and has authored over 60 technical papers on submersible electrical systems and underwater cable technologies.

Research Contributions & Patents: Her published research includes groundbreaking studies on submersible cable pressure resistance, optimization of waterproof construction techniques, and development of advanced corrosion protection systems for underwater electrical applications. Dr. Kowalski holds 22 patents related to submersible cable technologies, including innovative waterproof sealing methods and pressure-resistant cable construction techniques that have influenced international standards for underwater electrical systems.

Field Experience & Marine Consulting: Previous positions include Senior Marine Engineer at Kongsberg Maritime, Principal Electrical Systems Engineer at Subsea 7, and Technical Consultant for the International Maritime Organization (IMO) Electrical Systems Working Group. Her field experience encompasses direct oversight of submersible cable installations in over 120 underwater projects across the North Sea, Gulf of Mexico, Brazil, and Southeast Asia, with particular expertise in deep water pump systems, offshore platform electrical infrastructure, and underwater mining equipment requiring sophisticated submersible cable solutions.

Technical Department

on22/09/2025

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