Fully Insulated Wire

FIW Quick Selection

For the selection of the right FIW wire

key in the Nominal Diameter (in mm) and the FIW Grade in the input fields underneath to calculate the Length, Weight and minimal Breakdown Voltage (acc. to IEC 60317-56) of the specified FIW wire (line 1),

or key in the Nominal Diameter (in mm) and the required minimal Breakdown Voltage (acc. to IEC 60317-56) to get the corresponding FIW Grade of the FIW wire (line 2).


1. Nominal Diameter [mm] Grade
Length [km/kg] ???
Weight [kg/km] ???
min. Breakdown Voltage [V] ???
2. Nominal Diameter [mm] min. Breakdown Voltage [V]
Length [km/kg] ???
Weight [kg/km] ???
Grade ???

FIW Length/Weight Calculator

Length in km per 1 kg and weight in kg per 1 km for FIW can be retrieved along with the breakdown voltage, too, using the FIW quick selection on the dimensions page. The weight for an arbitrary length and vice versa can be retrieved using the Length/Weight Calculator underneath.

After specification of the considered FIW by picking a nominal diameter and an FIW grade from the tables offered, any weight can be typed in and the length is calculated immediately and the other way around.


Nominal Diameter [mm] Grade
Length [km] Weight [kg]