Fully Insulated Wire

Technical Values of FIW Acc. to IEC 60317-56

IEC 60317-56 describes a full Enamelled Wire Specification with diameters, outer diameters, mechanical, electrical, thermal and other characteristics like soldering.

Test parameter Test method Specification values for 0.30 mm FIW 6 Typical values for 0.30 mm FIW 6
Mechanical
Elongation IEC 60 851-3.1 ≥ 23 % 56 %
Tensile strength IEC 60 851-3.2 not specified 310 N/mm²
Springback IEC 60 851-3.4.1 not specified 68°
Solderability
at 390 °C IEC 60 851-4.5 ≤ 4 sec ≤ 3.0 sec
Thermal values
Temperature index IEC 60 172 ≥ 180 °C 192 °C
Heat shock EC 60 851-6.3.1.1 ≥ 200 °C 220 °C/6 mm mandrel
Cut through IEC 60 851-6.4 ≥ 245 °C ≥ 260 °C
Breakdown voltage (cylinder)
Volt min. 10032 V > 15 kV
V/µm at room temperature IEC 60 851-5.4.3.2 min. 76 V/µm > 100 V/µm
at 180°C IEC 60 851-5.4.3.2 min. 53 V/µm 74 V/µm
(Volt per µm increase of insulation)
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Test conditions for FIW acc. to UL 2353 (UL 60950)
UL 60950 will be replaced by UL 62368
UL 2353, rather similar to expired IEC 60950 Annex U, gives mainly electrical properties which mostly are rather short-term tests.
Test conditions acc. to UL 2353
No.		 Typical values for 0.30 mm FIW 6
U2.1 Electrical strength 9 6000 Vrms 1 min (twisted pair)
U2.2 Adherence and flexibility 10 3000 Vrms 1 min (mandrel)
U2.3 Heat shock
225 °C x 30 min for class B 12 3000 Vrms 1 min (mandrel)
240 °C x 30 min for class F
U2.4Retention of electric strength after bending 11
 		 3000 Vrms 1 min (mandrel)
 
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