Submersible Pump Cable (Deep Well Pump Cable)
Our submersible pump cable is purpose-built for continuous service in deep wells, boreholes, and underwater pumping systems. It combines waterproof integrity, mechanical toughness, and resistance to aggressive media—keeping your dewatering, water supply, or mining pump installation running reliably for the long term.
Why Waterproof Integrity Matters in Submersible Cables
When a pump operates 100 meters or several hundred meters below the surface, a cable failure is not a simple repair. Retrieving a failed cable from depth involves massive labor and cost—often exceeding the cable’s own price. That’s why every detail of material selection and manufacturing precision in a submersible pump cable directly governs the total cost of ownership. We engineer our cable to stay watertight and electrically stable under constant immersion, pressure, and chemical exposure.
Key Features
- Waterproof construction for permanent submersion in fresh, salt, or mineral-laden water
- Acid and alkali resistant – suitable for aggressive groundwater and industrial fluids
- Corrosion resistant – robust protection against galvanic and chemical corrosion
- Resistant to mineral oils and chemicals – jacket choices perform reliably in oily or mixed-media environments
- Highly flexible and bending-resistant – allows tight installation paths and continuous flexing from wave action or pump vibration
- Drag-chain capable and tensile-strength rated – withstands repeated pulling, dragging, and the weight of long vertical runs
- Long-term deep-well proven – designed for permanent installations with minimal maintenance
Typical Applications
- Deep well submersible pumps for water supply
- Dewatering pumps in mining, construction, and tunneling
- Sewage and wastewater lifting pumps
- Marine and shipboard pumping systems
- Harbor and port pump installations
- Power plant cooling water pump systems
- Metallurgical process water pumping
- Special civil engineering projects requiring underwater power
Technical Specifications
Conductor
- Multi-strand super-fine stranded oxygen-free copper wire
- Compliant with VDE 0295 Class 6 (reference: IEC 60228 Class 6) for superior flexibility and fatigue life
Insulation
- NBR (nitrile butadiene rubber) compound – excellent oil and water resistance
- TPE (thermoplastic elastomer) compound – good low-temperature flex and hydrolysis resistance
- PUR (polyurethane) – superb abrasion, tear, and cut resistance Material selected according to customer specification and well conditions.
- Core identification: black cores with white number printing, or colored cores: brown, black, blue, red, purple, white, orange
Outer Jacket (Sheath)
- NBR compound
- TPE compound
- PUR (ideal for toughest drag and abrasion environments)
- PVC compound – cost-effective option for less demanding service
- Jacket color: black, grey, or orange
Electrical & Thermal Properties
| Parameter | Value |
|---|---|
| Rated voltage U₀/U | 300/500 V for all cross-sections (≤0.5 mm² and >0.5 mm²) |
| Test voltage | 2500 V (5 min, a.c.) |
| Temperature range – fixed installation | -30 °C to +65 °C |
We also offer cables with extended temperature ratings and higher voltage classes upon request. Contact our technicians with your well depth, media composition, and mechanical load profile.
How to Order the Correct Submersible Pump Cable
- Specify the required conductor cross-section, number of cores, and length
- Describe the immersion medium: fresh water, seawater, chemical-laden, or oil-contaminated
- Inform us of any direct sunlight exposure, frequent reeling, or dynamic moving sections
- Allow our application engineers to recommend the optimal insulation/jacket combination
Get a Submersible Cable That Matches Your Project — Not an Off-the-Shelf Compromise
Whether you need a single sample for performance validation or a container load for a turnkey pumping project, you will deal directly with our manufacturing and technical team. We prepare detailed test reports, flexible lead times, and full compliance documentation with every shipment.
Contact our engineering team today for a tailored proposal and competitive pricing.
FAQ
Q: Can your submersible pump cable stay waterproof at 150 m depth? Yes. Our continuous extrusion and compound-bonding processes create a dense, longitudinally watertight cable. For depths exceeding 200 m or high-pressure environments, we can incorporate water-blocking tapes and fillings to guarantee zero ingress—just let us know your maximum head.
Q: What are the differences between NBR, TPE, and PUR jacket materials for submersible cables?
- NBR offers excellent resistance to oils, fuels, and aggressive water-borne chemicals—great for mining and industrial dewatering.
- TPE provides superior flexibility at low temperatures and good resistance to hydrolysis; widely used in drinking water wells and cold climates.
- PUR is the most mechanically rugged, with outstanding abrasion, cut, and drag resistance; ideal for dynamic applications where the cable is repeatedly moved, reeled, or dragged across surfaces. PVC is available as a lower-cost alternative for light-duty clean-water installations.
Q: Does the cable have sufficient flexibility to be coiled for pump installation and retrieval? Absolutely. The conductor is manufactured to VDE 0295 Class 6 (super-fine wire) with specially formulated elastomeric insulation and jacket compounds. This gives the cable a very tight bending radius and excellent recovery memory, so it can be spooled onto reels repeatedly without deforming.
Q: Can you supply cut-to-length assemblies or cables with pre-molded connectors? Yes. On request, we provide factory-terminated cables with vulcanized joints, molded connectors, or potted ends. Share your pump-side and panel-side connection requirements, and we will deliver a ready-to-install cable harness.
Q: What quality standards or certifications does your submersible cable meet? We produce in accordance with VDE, IEC, and equivalent international standards. Upon order, we supply inspection certificates, electrical test reports, and can coordinate testing under customer-specified acceptance criteria (e.g., BSI, SASO, or local utility approval). Please contact us with your certificate requirements.
Q: What cross-sections and voltage ratings do you offer? The standard range is 300/500 V with conductor sizes from 0.5 mm² upward. Higher voltage ratings (e.g., 0.6/1 kV) and custom configurations are available. Contact our team with your pump power and distance, and we will size the cable appropriately.
