
DF203 Epoxy Glass Cloth Laminate
- Describe
-
Corresponding standard models and characteristics
Product Model
Application and Feature Classification
Temperature resistance grade
Deaver.
GB/IEC
NEMA
DF203
EPGC203
G11
Similar to EPGC202, higher mechanical strength at higher temperatures
Class F 155 ℃
Physical, mechanical and electrical properties
Serial Number
Indicator Name
Unit
DF203/ EPGC203
Test Method
Index value
Typical value
1
Water absorption (T = 3mm)
mg
≤ 22
8.8
GB/T 1303.2-2009
2
Vertical layer bending strength (longitudinal)
Normal
MPa
≥ 340
570
150 ℃ ± 3 ℃
≥ 170
322
3
Parallel layer impact strength (simply supported beam, notch)
kJ/m2
≥ 33
70
4
Vertical layer to electrical strength (90 ℃ ± 2 ℃ in transformer oil)(T = 1mm)
kV/mm
≥ 14.2
27.5
5
Parallel layer to breakdown voltage (90 ℃ ± 2 ℃ in transformer oil)
kV
≥ 35
>80
6
Dielectric Loss Factor (1MHz)
-
≤ 0.04
0.02
7
Dielectric constant (1MHz)
-
≤ 5.5
4.6
8
Arc resistance
s
-
181
9
Insulation resistance (after immersion for 24h)
Ω
≥ 5.0 × 1010
3.1 × 1013
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