Huber+Suhner has got DTV type-approval for a range of screened single and dual-core power cables, allowing them to be used for critical marine energy systems.

Huber+Suhner marine cable
“Specifically designed for long-term durability in harsh conditions, the Radox family of cables combine electrical performance with strong mechanical and chemical resistance,” claimed the company. “Designed for use in battery and fuel energy systems on vessels, Radox 155(S) and Radox Elastomer S received certification.”

There are two of the polymers used in some of the company’s cables, and the resulting type-approved cables are:

12 sizes of single-core cable have been DTV approved (certificate TAE000053V) – from 4mm2 (56x 0.31mm strands, 4.7Ω/km) to 120mm2 (589x 0.51mm strands, 0.15mΩ/km), which are 5.8 to 22.4mm respectively in diameter.

Two sizes of dual core cable have been DTV approved (same certificate) – the 2 x 4mm2 (5.09Ω/km), and the 2 x 6mm2 (84 x 0.31mm strands, 3.3Ω/km), which are 10.2 to 11mm respectively in diameter.

Minimum bend radius for all is 4x diameter installed, or 6x diameter when flexing.

They are certified up to 1.5kVdc and 1kVac, from -40°C to +130°C over 50,000 hours, and are also compliant with ISO 19642, said the company.

Each includes an electrically-isolated braided copper screening layer.

“This certification opens the door to new opportunities in the maritime sector, particularly for hybrid and fully electric vessels,” said the company.

Applications are foreseen in battery wiring, on-board chargers ac-dc charging sockets and in auxiliary systems. The cables are also for vehicles – they are tolerant of motor oil, fuels and hydrolysis.