SIHF

Cable construction
  • Tinned copper conductors to IEC 60228 cl. 5
  • Silicone core insulation
  • Core identification to DIN VDE 0293 colour coded black cores with continuous white numbers
  • For 2-cores brown, blue
  • Cores stranded in layers with optimal lay-length
  • Green-yellow earth-core (3 cores and above)
  • Outer jacket of silicone rubber
  • Jacket colour reddish brown
  • Halogen-free according to IEC 60754-2
  • Behaviour in fire no flame propagation test according to IEC 60332-1B
Note
  • G = with green-yellow earth core
  • X = without green-yellow earth core
Technical Data
  • Special silicone multicore cable with higher heat-resistance range adapted to DIN VDE 0250 part 1 and part 816.
  • Temperature range
  • Temperature limit at the conductor In operation +180°C
  • Nominal voltage Uo/U 300/ 500 V
  • Test voltage 2000V
  • Breakdown voltage min. 5000V
  • Insulation resistance Min. 200 MOhm x km
  • Power rating
    At ambient temperature up to +145°C to DIN VDE 0100 for higher temperatures valid:
    • 145°C – load value 100% 150°C – load value 92%
    • 155°C – load value 85% 160°C – load value 75%
    • 165°C – load value 65% 170°C – load value 53%
    • 175°C – load value 38%
  • Minimum bending radius
    • Flexing 7,5 x cable Ø
    • Fixed installation 4 x cable Ø
Application

Silicone-insulated cables are used when exposure to high temperatures and temperature variations would cause conventional PVC-insulated cables to become brittle. Silicone-insulated cables are preferably used in the metallurigical industry, steel works, hot-rolling mills, coking plants, foundaries, cement works, glass factories and ceramic plants as well as in the production of electric motors, in ships and aeroplanes, in heating equipment, and in lighting gear etc. Silicone rubber is resistant to vegetable and animal fat, many types of oil and diluted acids. No decomposition occurs when exposed to alcohol, plasticizers, alkaline solutions, saline solutions, etc. The insulation is fully tropicallized and resistant to oxygen and ozone. One of its exceptional features is its high flash point. Should the cable burn, an insulating silicon dioxide layer will remain on the conductor to render it short circuit proof.