ELECTRICAL INSULATION CARDBOARD (0.8MMX1MX2M)
NO
ITEM
UNIT
STANDARD VALUE
TESTED RESULTS
STANDARD
1
TOLERANCE OF THICKNESS FOR 8 TIMES WEIGH(MAX)
%
±5.0
+1.4
-0.9
JB/T8989.2-1999
P4
2
TIGHTNESS
G/CM3
1.10-1.25
1.14
P5
3
TENSILE STRENGTH
MD
MPA
≥105
119
P6
TD
≥80
89
4
ELONGATION
≥3.0
6.9
≥4.0
5.8
5
SHRINK RATE
≤0.5
0.4
P11
≤0.7
0.5
THICKNESS
≤5.0
3.8
6
WATER CONTENT
≤6.0
5.9
P13
7
WATER EXTRACT CONDUCTIVITY
MS/M
4.2
P15
8
WATER EXTRACT PH VALUE
---
6.0-9.0
8.0
P16
9
OIL-ABSORBING
≥9.0
12.7
P19
10
ELECTRICAL STRENGTH (IN OIL)
KV/MM
≥35
39.8
P22
NOTE : THE STANDARD VALUE IS ACCORDING TO IEC 60641-3-2, IT IS 0.8MM ELECTRICAL INSULATION CARDBOARD CHARACTERS
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