
DF308 Epoxy Glass Cloth Laminate
- Describe
-
Corresponding standard models and characteristics
Product Model
Application and Feature Classification
Temperature resistance grade
Deaver.
GB/IEC
NEMA
DF308
EPGC308
-
High mechanical strength at high temperature, good arc resistance, high electrical strength
Class H 180 ℃
Physical, mechanical and electrical properties
Serial Number
Indicator Name
Unit
DF308/ EPGC308
Test Method
Index value
Typical value
1
Water absorption (T = 3mm)
mg
≤ 22
8.4
GB/T 1303.2-2009
2
Vertical layer bending strength (longitudinal)
Normal
MPa
≥ 340
580
150 ℃ ± 3 ℃
MPa
≥ 170
340
180 ℃ ± 3 ℃
MPa
≥100
200
3
Parallel layer impact strength (simply supported beam, notch)
kJ/m2
≥ 33
71
4
Vertical layer direction electrical strength
(90 ℃ ± 2 ℃ in transformer oil)(T = 1mm)
kV/mm
≥ 14.2
28.5
5
parallel layer directional 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
4.5
8
Arc resistance
s
-
181
9
Insulation resistance (after immersion for 24h)
Ω
≥ 5.0 × 1010
2.3 × 1013
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