# FIW length and FIW weight

Due to the extraordinary thickness of the insulation of FIW the length of a certain quantity of FIW and the weight of a wire with a certain length deviate remarkably from experiences with normal enamelled copper wire (see the **Technical Data for IEC 60317** Grade 1 - 3 for instance).

The length of 1 kg of FIW 3 - FIW 9 for nominal diameters in the range of 0,071 - 0,710 mm - assuming nominal outer diameters acc. to IEC 60317-56 - can be looked up in the **FIW length table** on the next page in km/kg..

The weight of 1 km of FIW 3 - FIW 9 for the same range of nominal diameters - with nominal outer diameters acc. to IEC 60317-56 as before - can be looked up in the **FIW weight table** on the subsequent page in kg/km.

In both tables those variants, which are kept in stock at Elektrisola, are highlighted, so that the designer can see immediately, whether the suitable FIW is deliverable at short notice.

# 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.

Length [km]Weight [kg]