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IsoTek
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IsoTek
PFP

Triple-layer insulation: Polyester film inside, outer layers press board

Delivery forms
  • in rolls approx. 1260 mm wide
  • in reels minimum width 5 mm
  • in sheets
  • stamping parts, precasted slot liners an
Applications
  • slot insulation, slot closure and interleaving insulation in electrical drives and generators
  • layer insulation in dry type transformer
Technical Data
Thickness Norm Unit 0.15 mm 0.20 mm 0.25 mm 0.30 mm 0.35 mm 0.40 mm
Nominal thickness IEC 626-2 mm 0.15 0.20 0.25 0.30 0.35 0.40
Thickness tolerance IEC 626-2 % 15 15 10 10 10 10
Film thickness IEC 626-2 μm 36 36 36 36 36 36
Weight per square meter IEC 626-2 g/m2 170
(+/-12%)
270
(+/-12%)
315
(+/-12%)
390
(+/-12%)
430
(+/-12%)
490
(+/-12%)
Elongation longitudinal IEC 626-2 % 2 3 5 5 5 5
Elongation transversal IEC 626-2 % 10 15 15 15 15 15
Tensile strength longitudinal IEC 626-2 N/10 mm 135 180 225 270 300 360
Tensile strength transversal IEC 626-2 N/10 mm 100 120 150 180 200 240
Moisture content IEC 626-2 ca. % 5.0 6.0 6.0 6.0 7.0 7.0
Shrinkage longitudinal IEC 626-2 max. % 0.5 0.5 0.5 0.5 0.5 0.5
Shrinkage transversal IEC 626-2 max. % 1.0 1.0 1.0 1.0 1.0 1.0
Dielectrical strength IEC 626-2 kV 7 7 7 8 8 8