| Customization: | Available |
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| Application: | Industrial, Submarine |
| Voltage: | Low and Medium Voltage Cable |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Low Voltage Submarine Cables are specially designed power cables for transmitting electrical energy at low voltage (typically up to 1.1 kV) across underwater environments such as rivers, lakes, harbors, or coastal seabeds.
They are engineered to provide mechanical strength, water-tightness, and resistance to corrosion, pressure, and environmental hazards found in aquatic installations.
Power supply to offshore equipment (buoys, beacons, marine sensors)
Electrical interconnection between islands and shore
Powering aquaculture and desalination systems
Ports, oil terminals, floating platforms
Renewable energy (floating solar farms, small-scale tidal units)
Temporary or permanent marine power delivery
| Standard | Scope |
|---|---|
| IEC 60502-1 | Power cables with extruded insulation for rated voltages 0.6/1 kV |
| IEC 60228 | Conductors of insulated cables |
| IEC 60229 | Tests on cable oversheaths |
| BS 5467 / BS 6724 | LV power cables with armor (UK-specific) |
| ICEA S-95-658 | Low voltage power cables (North America) |
| NEK 606 / DNV / ABS | Offshore & marine cable approvals |
| Component | Description |
|---|---|
| 1. Conductor | Copper (usually class 2 stranded) or aluminum |
| 2. Conductor Screen | Semi-conductive layer (optional in LV) |
| 3. Insulation | XLPE or EPR for thermal and electrical integrity |
| 4. Bedding / Inner Sheath | PVC or LSZH compound to separate armor |
| 5. Armor | Galvanized steel wire armor (SWA), sometimes double armored for seabed protection |
| 6. Outer Sheath | Heavy-duty, UV- and seawater-resistant material (typically HDPE, LSZH, or polyurethane) |
| 7. Water Blocking (optional) | Swellable tapes or compound to prevent longitudinal water penetration |
| Feature | Details |
|---|---|
| Voltage Rating | 0.6/1 kV (or up to 1.1 kV) |
| Temperature | -20°C to +90°C (XLPE); short circuit up to 250°C |
| Water Tightness | Sheath and armor provide protection against water ingress |
| Armor | Single or double-layer SWA for mechanical protection |
| UV/Oil/Chemical Resistance | Optional depending on sheath type |
Route analysis: seabed type, depth, risk of fishing/trawling
Laying method: direct seabed laying, burial, or ducted
Pulling tension: cable must withstand installation loads
Corrosion: materials selected to resist seawater and marine organisms
Thermal performance: ensures stable ampacity under water
| Parameter | Typical Value |
|---|---|
| Voltage | 0.6/1 kV |
| Conductor Material | Copper or Aluminum |
| Insulation | XLPE, EPR |
| Sheath | PVC, PE, or HDPE |
| Armor | Galvanized Steel Wire (SWA) |
| Standard | IEC 60502-1 |
| Temperature | 90°C continuous |
Reliable power transmission across aquatic zones
High mechanical durability and water resistance
Long operational lifespan (20-30+ years)
Low maintenance once installed
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