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High temperature overload electrical insulating oil
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- Product Description
-
Suzhong High temperature overload electrical insulating oil is a narrow distillate base oil produced by special process refining, adding special antioxidant and adopting advanced automatic production blending process (ILB). It can greatly improve the flash point index under the premise of controlling the kinematically viscosity, and can make the transformer oil run stably at high temperature for a long time.
PROPERTY
UNIT
TEST METHOD
TYPICAL DATA
1-Function
Viscosity,40℃
mm²/s
ISO 3104
≤12
Viscosity,-30℃
mm²/s
ISO 3104
≤1800
Pour point
℃
ISO 3016
≤-40
Water content
mg/kg
IEC 60814
≤30
Breakdown voltage
-Before treatment
kV
IEC 60156
≥50
-After treatment
kV
IEC 60296
—
Density,20℃
kg/m3
ISO 12185
≤895
DDF at 90℃
IEC 60247
≤0.005
2-Refining/stability
Appearance
IEC 60296
clear, free from sediment and suspended matter
Acidity
mg KOH/g
IEC 62021
≤0.01
Interfacial tension
mN/m
EN 14210
≥40
Corrosive sulphur
DIN 51353
non-corrosive
Potentially corrosive sulphur
IEC 62535
non-corrosive
DBDS
mg/kg
IEC 62697-1
not detectable
Antioxidant
wt%
IEC 60666
0.3
Metal passivator additives
mg/kg
IEC 60666
not detectable
2-Furfural and related compounds
mg/kg
IEC 61198
＜0.05
3-Performance
Oxidation stability at 120℃,500h
IEC 61125C
Total acidity
mg KOH/g
≤0.3
Sludge
wt%
≤0.05
DDF at 90℃
≤0.05
4-Health,safety and environment(HSE)
Flash point,PM
℃
ISO 2719
≥170
PCA
wt%
IP 346
＜3
PCB
IEC 61619
not detectable
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