Test conditions for FIW acc. to IEC 60950 Annex U

 

 Test conditions Typical values for 0.30 mm FIW 6
  U2.1 Electrical strength  6000 Vrms 1 min (twisted pair)
  U2.2 Adherence and flexibility  3000 Vrms 1 min (mandrel)
  U2.3 Heat shock 250 °C x 30 min   3000 Vrms 1 min (mandrel)
  U2.4 Retention of electric strength after bending  3000 Vrms 1 min (mandrel)