NSSHQU O/J, NSSHQU 3E, NSSHQU 3E + ST 0.6/1 kV Cable
Understanding the Advanced Role of NSSHQU O/J, NSSHQU 3E, and NSSHQU 3E + ST 0.6/1 kV Submersible Pump Cables in Modern Mining, Water Treatment, and South African Infrastructure Projects
NSSHQU O/J, NSSHQU 3E, NSSHQU 3E + ST 0.6/1 kV Cable
APPLICATION | Heavy duty tough rubber flexible cable with or without individually earth screened cores for dynamic or static applications in aggressive environments. Flame retardant, abrasion, cut, notch and tear resistant. Good resistance to oil and fats. Suitable for installation in dry, damp, wet and hazardous environments. For power supplies where high levels of mechanical stress and abrasion are expected. Can be permanently submersed in fresh water, salt water, storm water, oily water and sewage contaminated water to a depth of 100 metres. Suitable for indoor and outdoor applications. |
CHARACTERISTICS | Voltage Rating (Uo/U): 0.6/1kV Test Voltage: 3kV Ambient Temperature: Fixed: -40°C to +80°C / Flexed: -25°C to +80°C Maximum Short Circuit Temperature: +250°C Minimum Bending Radius: Fixed: 4 × overall diameter / Flexed: 5 × overall diameter Submersible: 100m |
CONSTRUCTION | Phase Conductor: Class 5 flexible tinned copper conductor Insulation: Rubber compound Type 3GI3 Individual Core Screen*: Copper braid up to 10mm², copper wires from 16mm² Control Conductors*: Class 5 flexible tinned copper conductor Inner Sheath: Rubber compound Type GM1b Outer Sheath: Rubber compound Type 5GM5 Sheath Colour: Yellow Note: Available with control conductors and individual core screen upon request |
CABLE THIRD-PARTY ACCREDITATION | VDE APPROVED - Cables are tested and approved by the VDE Testing & Certification Institute. |
STANDARDS | VDE 0250 Part 812, VDE 0295, EN 60228 Flame Retardant according to IEC/EN 60332-1-2 |
What Makes NSSHQU Cables Unique?
The NSSHQU family of cables has been specifically engineered to operate in the most aggressive environments where traditional cables fail. Unlike standard PVC or XLPE insulated cables, NSSHQU variants use high-performance rubber compounds and tinned copper conductors, ensuring flexibility, corrosion resistance, and resistance to oils, abrasion, and mechanical stress.
Key Features Across All Models:
Voltage rating (Uo/U): 0.6/1 kV
Test voltage: 3 kV
Ambient temperature range:
Fixed installation: -40°C to +80°C
Flexed: -25°C to +80°C
Maximum short circuit temperature: +250°C
Submersible depth: up to 100 metres
Resistance properties: Flame retardant, abrasion-resistant, oil-resistant, notch and tear resistant
Certifications: VDE approved, flame retardant to IEC/EN 60332-1-2
These cables are not just designed to carry electricity—they are designed to survive.
Breaking Down the Variants
1. NSSHQU O/J 0.6/1 kV
Designed as a general-purpose heavy-duty submersible cable.
Suitable for harsh industrial environments, sewage plants, water pumps, and mining.
Known for flexibility and oil resistance.
2. NSSHQU 3E 0.6/1 kV
Includes individually earth-screened cores, enhancing safety and reducing electromagnetic interference (EMI).
Essential in environments where sensitive control signals and high-power transmission run side by side.
Frequently used in submersible pump installations where power quality and safety are critical.
3. NSSHQU 3E + ST 0.6/1 kV
Advanced variant with earth-screened cores plus an overall copper screen (ST).
Offers maximum shielding effectiveness, making it ideal for environments prone to high EMI or where sensitive instrumentation must coexist with heavy-duty machinery.
Widely deployed in industrial automation, offshore platforms, and water treatment facilities.
Benefits of NSSHQU Submersible Pump Cables
Durability: Withstands abrasion, tearing, oil exposure, and chemical attacks.
Safety: Flame-retardant materials and screened cores improve operational safety.
Flexibility: Maintains performance in dynamic (moving) and static (fixed) installations.
Submersion Resistance: Can operate continuously underwater up to 100 metres deep.
Temperature Tolerance: Functions reliably from -40°C to +80°C in fixed installations.
Longevity: Extends operational lifespan, reducing downtime and maintenance costs.
Usage Scenarios
Mining Operations:
Power supply for submersible pumps that remove groundwater from deep shafts.
Withstand heavy mechanical wear from rough handling and abrasive rocks.
Water and Wastewater Treatment Plants:
Submersible pump connections in sewage-contaminated water.
Resistance to fats, oils, and chemicals ensures uninterrupted operation.
Marine and Offshore Installations:
Permanently submerged cables for floating docks, dredging equipment, and offshore drilling rigs.
Industrial Plants:
Supply cables for machinery operating in aggressive, oily, or high-temperature environments.
South African Applications:
Gold and platinum mines require pump cables that can resist chemical-laden water and abrasive conditions, making NSSHQU a preferred choice.
Frequently Asked Questions (FAQ)
Q1: Can NSSHQU cables be used in saltwater environments?
Yes. These cables are designed for permanent submersion in fresh water, salt water, storm water, oily water, and even sewage-contaminated water.
Q2: What makes NSSHQU cables better than PVC-insulated cables?
Rubber insulation provides superior flexibility, abrasion resistance, and temperature tolerance. PVC often hardens and cracks in submersed or aggressive environments.
Q3: Are these cables flame retardant?
Yes. They meet IEC/EN 60332-1-2 standards for flame retardance, reducing fire risks in hazardous environments.
Q4: What is the maximum installation depth?
NSSHQU cables are certified for continuous submersion up to 100 metres.
Q5: Can these cables be used outdoors?
Yes. The outer sheath is resistant to UV, ozone, and weathering, making them suitable for both indoor and outdoor applications.
Q6: Are they approved by international standards?
Yes. They are VDE approved and manufactured according to VDE 0250 Part 812, VDE 0295, and EN 60228.
The NSSHQU O/J, NSSHQU 3E, and NSSHQU 3E + ST 0.6/1 kV submersible pump cables represent a technological advancement in cable engineering. With their robust construction, high flexibility, resistance to aggressive environments, and international certifications, they provide unmatched reliability for industries such as mining, marine operations, and wastewater treatment.
For countries like South Africa, where mining is both economically vital and environmentally challenging, these cables offer a proven, long-term solution to power supply challenges in submersible applications. Their ability to operate safely in extreme conditions makes them not just an option, but a necessity.
