
DF202 Epoxy Glass Cloth Laminate
- Describe
-
Corresponding standard models and characteristics
Application and Feature Classification
Performance
Temperature resistance grade
Deaver.
GB/IEC standard
NEMA Standards
DF202
EPGC202
FR-4
Similar to EPGC201, arc resistance, low flammability
Grade B 130 ℃
DF202A
-
-
Similar to DF202, with higher mechanical strength
Grade B 130 ℃
Physical, mechanical and electrical properties
Serial Number
Indicator Name
Unit
DF202/ EPGC202
Test Method
Index value
Typical value
1
Water absorption (T = 3mm)
mg
≤ 22
9.7
GB/T 1303.2-2009
2
Vertical layer bending strength (longitudinal) normal
MPa
≥ 340
540
3
Parallel layer impact strength (simply supported beam, notch)
kJ/m2
≥ 33
70
4
Vertical layer direction electrical strength
(90 ℃ ± 2 ℃ in transformer oil)(T = 1mm)
kV/mm
≥ 14.2
24
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
4.4
8
Arc resistance
s
-
181
9
Tracking Resistance Index (CTI)
V
-
600
10
Insulation resistance (after immersion for 24h)
Ω
≥ 5.0 × 1010
2.4 × 1013
11
Combustibility
Level
V-0
V-0
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