Functional integrity Rf 1h

Nexans offers fire resistant cables with a functional integrity of one hour or Rf 1h for voltages ranging up to and including 1 kV. They are FR2 according to NBN C30-004. These cables are also fire retardant (F2) and halogen-free (SA + SD) according to NBN C30-004.
A fire-resistance of one hour is the minimum level of functional integrity prescribed by Belgian legislation for fire safety installations.