Solar Cables
Solar Cables are specially designed interconnection cables used in photovoltaic (PV) power generation systems. These cables connect solar panels, inverters, combiner boxes, and other electrical components within a solar installation.
TWI Wires & Cables manufactures and exports high-performance Solar Cables engineered for UV resistance, weather durability, and long-term outdoor performance. Our solar cables are suitable for rooftop and ground-mounted solar power plants across Africa, the Middle East, and international markets.
Construction of the Cable
Conductors
It is the current carrying component of the cable.
Material:
- Flexible Class 5 Tinned Annealed Copper as per IEC 60228
Tinned copper ensures enhanced corrosion resistance and long-term conductivity in outdoor and humid environments.
Insulation
The rated voltage level of the cable depends on the dielectric strength and insulation thickness.
Material:
- Cross Linked Polyolefin (XLPO) as per BS EN 50618:2014
- Rated for 1.5 kV DC systems
XLPO insulation provides excellent thermal endurance, UV resistance, and high dielectric strength.
Outer Sheath
Protective outer covering of the cable.
Material:
- Cross Linked Polyolefin (XLPO) as per BS EN 50618:2014
Colour of Outersheath Jacket:
Black (Other colours available on request)
The sheath ensures resistance against UV radiation, ozone, abrasion, and extreme weather conditions.
Characteristics
Operating Temperature:
-40°C to +120°C
Short Circuit Rating:
Calculated based on normal maximum operating conductor temperature of 120°C prior to short circuit and maximum conductor temperature of 250°C after short circuit.
Voltage Rating:
1.5 kV DC
Solar cables are designed for long-term outdoor exposure and high-performance DC transmission in photovoltaic systems.
Standards
Solar Cables are manufactured in accordance with:
- BS EN 50618:2014
- TUV 2 PFG 1169/08
- IEC 60228
These standards ensure safety, reliability, and international acceptance.
Application
Solar Cables are used in:
- Photovoltaic (PV) power plants
- Rooftop solar systems
- Ground-mounted solar farms
- Solar panel to inverter connections
- DC string connections
- Renewable energy installations
Suitable for use with Class II equipment as per BS EN 50618:2014.


