faq-12

Can you provide us with more detailed information on the electric features of the polyester foils used?

Yes, these are:

Characteristical feature

PET/70044/xxx

Test method

Disruptive strength

125μ

125kV/mm

= 15.6 kV

ASTM D149-81

175μ

105kV/mm

= 18.4 kV

6.35mm electrodes in dry air at 25°C

250μ

84kV/mm

= 21 kV

Loss factor

0.005

ASTM D150-70

Surface resistance

>10¹³ Ω/sq 500Vd.c

ASTM D257-83 @ 20°C/54% rel.F.

Contact resistance

10¹⁵ Ωm 100 Vd.c

ASTM D257-83 @ 25°C/1000s

For more information, please ask for our KDI00046 "Technical data of polyester foils" per email.