Electrical Insulating Paper – Thin Electrical Grade Insulation Paper

Electrical insulating paper is made from 100% superior sulfate insulating wood pulp. It has good dielectric and high mechanical properties. Electrical insulating paper is widely used for transformers, electrical motors, electrical apparatus, meters……

Electrical insulating paper is made from 100% superior sulfate insulating wood pulp.

It has good dielectric and high mechanical properties. Electrical insulating paper is widely used for transformers, electrical motors, electrical apparatus, meters, switches, etc. It also can be used to laminate with polyester film to produce flexible insulation laminates.

The temperature classification is H, 180°C.

It has been recognized to GB/T 20628 or IEC60554.

Properties  Units Values
Thickness mm 0.1-0.5
Thickness Tolerance % ≤±10
Density g/cm3 1.0-1.2
No Bending ≥80
MD MPa
Tensile Strength
After Bending ≥35
No Bending ≥40
TD
After Bending ≥60
Moisture Content % ≤8.0
Ash Content % ≤1.0
Electric Conductivity Ms/m ≤8.0
PH of Water Extractives 6.0-9.0
0.10mm ≥9.0
Electric Breakdown Strength (in air) KV/mm
0.15-0.25mm ≥10
0.30-0.35mm ≥10
0.40-0.50mm ≥9.0
0.10-0.15mm ≥7.0
Electric Breakdown Strength (in air), after bending KV/mm
0.20-0.25mm ≥8.0
0.30mm ≥8.0
0.35-0.50mm ≥7.0

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