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IsoTek
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IsoTek
DMD

Triple-layer insulation: Polyester film inside, outer layers non-woven on both sides resin impregnated.

Properties
  • insulation class F (155 °C) in accordance to IEC 626
  • UL qualified
  • excellent adhesion between DMD and impregnating resins
  • very smooth surface; it can be easily processed in automated insulation machines
Applications
  • slot insulation, slot closure and interleaving insulation in electrical drives and generators.
  • layer insulation in dry type transformer
Delivery form
  • in rolls approx. 1260 mm wide
  • in reels minimum width 5 mm
  • in sheets
  • stamping parts, precasted slot liners and sl
Technical data
Properties Norm Unit 0.15 mm 0.20 mm 0.23 mm 0.30 mm 0.35 mm 0.45 mm
Thickness IEC 626-2 mm 0.15 0.20 0.23 0.30 0.35 0.45
Thickness tolerance IEC 626-2 % +/- 15 +/- 15 +/- 15 +/- 15 +/- 15 +/- 15
Non-woven thickness IEC 626-2 μm 50 50 50 50 50 50
Film thickness IEC 626-2 μm 50 100 125 190 250 350
Weight per square meter IEC 626-2 g/m2 160
(+/-12%)
240
(+/-12%)
270
(+/-12%)
370
(+/-12%)
445
(+/-12%)
570
(+/-12%)
Elongation longitudinal IEC 626-2 % 20 20 20 30 30 30
Elongation transversal IEC 626-2 % 30 35 50 50 50 50
Tensile strength longitudinal IEC 626-2 N/10 mm 120 180 200 300 350 450
Tensile strength transversal IEC 626-2 N/10 mm 90 200 250 350 400 450
Moisture content IEC 626-2 ca. % 0.5 0.5 0.5 0.5 0.5 0.5
Shrinkage longitudinal IEC 626-2 max. % 1.5 1.5 2.0 2.0 2.0 2.0
Shrinkage transversal IEC 626-2 max. % 1.5 1.5 2.0 2.0 2.0 2.0
Dielectric strength IEC 626-2 kV 6 10 12 16 19 22

Our values stated are to be seen as typical values. We reserve the right to introduce changes within this framework. We do not accept any obligations or liabilities in respect of this information.