Shaanxi Taporel Electrical Insulation Technology Co., Ltd.

China Manufacturer with main products: Fiber Glass Insulation Core Rod, FRP Dogbone, FRP Corner Piece, Insulation Material Series

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Polyester insulation sheet

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Specifications

H class. Features: high temperature resistant, good  mechanical and electrical performance. Applicable to H class motors and electrical equipment as an insulation part. 

 Properties
No.
Property
Unit
Value
1
Bending strength across layers
Normal Condition
MPa
≥400
150±2℃
≥200
2
Impulse strength along layers
(Beam method)
kJ/m2
≥50(vertical)
3
Withstand voltage vertical to layers, (in 90℃±2℃ oil)
MV/m
See Form III
4
Dielectric loss factor
   below 48Hz~62Hz
-
≤0.05
below 1MHz
-
 
Density
g/cm3
≥1.70
5
Withstand voltage parallet to layers
kV
≥30
6
Insulation resistance parallet to layers
Normal condition
MW
≥1.0×104
Absorbed in water
for 24h
≥1.0×102
7
Volume resistivity
Normal condition
MW.m
≥1.0×105
Absorbed in water
for 24h
≥1.0×103
180±2℃
≥1.0×103
8
Surface resistivity
Normal condition
MW
≥1.0×106
Absorbed in water
for 24h
≥1.0×104
180±2℃
≥1.0×104
9
Temperature Index (TI)
-
≥180

 
 

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