Suitable where PVC insulated cables become brittle due to high-temperature variations. Silicone-insulated single cores are preferably used in the metallurgical industry, steel works, hot rolling mills, coking plants, foundries, etc.

Insulation consists of silicone rubber. It is resistant to vegetable and animal fat, many types of oil, and diluted acids. No decomposition occurs when exposed to alcohol, alkaline solutions, etc. The insulation is resistant to oxygen and ozone. Should the cable burn, an insulation silicon dioxide layer will remain on the conductor to render it short-circuit-proof. Additional mechanical protection due to the glass fibber braid.