Electrical characteristics
Test voltage after 2x24 h in water at 20°C:
15 min/50 Hz - 2500V
Loss factor (according to DIN 53483):
20°C/800 Hz - 6x10-2
70°C/800 Hz - 8x10-2
Relative dialectric constant (according to DIN 53483):
20°C/800 Hz - 3.5
70°C/800 Hz - 7.5
Volume resistivity (according to VDE 0472 part 502):
20°C/500V DZ - 1015 Ωcm
70°C/500V DZ - 1015 Ωcm
Breackdown voltage measured on wire: 16/2.4mm-Ø
20°C - ≥ 55kV/mm
70°C - ≥ 45kV/mm
Mechanical characteristics
Tensile strength on delivery :
σB ≥ 20N/mm²
Tensile strength after aging 28d/80°C :
ΔσB ≤ ±10%
Elongation at break on delivery :
εB ≥ 150%
Elongation at break after aging 28d/80°C :
ΔεB ≤ ±15%
Hot deformation (reduction of all thickness) :
80°C/4h - ≤ 40%
70°C/4h - ≤ 25%
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