Silicoul is a high quality grade of silicone coated cable made from a flexible tinned copper core, separating tape, silicone rubber and a special synthetic reinforcing braid as a final coat. The reliability, cost effectiveness and general versatility of these cables has led them to be adopted as the industry standard for wiring a variety of different machines and applications.
Silicoul 6.6kV Silicone Coated Cable is grey in colour and withstands continuous operating temperatures between -60ºC and +180ºC (as well as short-term peaks up to 230ºC). It exhibits good flexibility and is easy to work with.
Silicoul 6.6kV Cable Characteristics
- Excellent mechanical strength
- Good resistance to Ozone and Corona
- Bending radius 5 x d.
- Compatible with most impregnation varnishes
- Excellent ageing resistance
- Good resistance to thermal shock and UV
- Withstands continuous temperatures between -60ºC and 180ºC
- Withstands short-term exposure up to 230ºC
- Working voltage: 7.2kV
- Grey in colour
Approvals and Standards
Silicoul 6.6kV Silicone Coated Cable carries the following approvals:
- F1 rated as per NF F 16-101
- Type approval certificates for use in shipbuilding industry , IEC 60092-350 standards.
- Fire behaviour – Meets requirements of IEC 60331-21, IEC 60332-1 et IEC 60332-3-22 tests.
Typical Applications for Silicoul 6.6kV Cable
- Wiring of rotating machines: incl. motors, alternators and generators.
- Wiring of static machines: incl. transformers, inductors, inverters and choppers.
- The shipbuilding, transport and rail sectors.
- Power supply.
Availability of Silicoul 6.6kV Silicone Coated Cable
Silicoul 6.6kV is available from Associated Gaskets in a variety of different sizes (listed below). Where possible, we’ll offer to supply in lengths as short as one metre to help you eliminate wastage and unnecessary stock holdings. The less common sizes (usually under 6mm² and over 185mm²) may be subject to minimum order requirements.
Nominal Cross Section | Nominal Outer Diameter |
4mm²* | 8.2mm |
6mm² | 9.1mm |
10mm² | 10.3mm |
16mm² | 11.5mm |
25mm² | 13.0mm |
35mm² | 14.6mm |
50mm² | 16.7mm |
70mm² | 18.3mm |
95mm² | 20.5mm |
120mm² | 22.6mm |
150mm² | 24.9mm |
185mm² | 26.4mm |
240mm² | 30.2mm |
300mm² | 32.9mm |
400mm² | 37.0mm |
In addition to the 6.6kV Silicoul Cable described on this page, Silicoul is also available in 1.1kV, 3.7kV and 13.8kV grades.
For more information on these other grades, the 6.6kV listed here, or to discuss the best cable solution for your application please contact your local Associated Gaskets branch. We’ll be more than happy to assist.
Additional Information and Resources

Silicoul is a registered trademark of Omerin.