Silicone Fluids / Silicone Transformer Fluid (SS SF 50TF)

Category

Category

Silicone Transformer Fluid (SS SF 50TF)

SF 50TF Transformer Liquid is suitable for transformers and other electrical equipment designed to operate at high temperatures or at very low temperatures.

SS-SF 50TF Transformer Liquid is a polydimethyl silicone liquid that meets the requirements of: International Electro technical Commission (IEC) 836 “specifications for silicone liquid for electrical purposes” (Silicone Type T-1). ASTM D 4652-92 “silicone fluids for electrical insulation”. IEC 1100 – “Classification of insulating liquids according to fire point and net calorific value” (Class K3). With excellent electrical insulation properties over a wide temperature range, combined with high thermal stability, SF 50TF Transformer Liquid is suitable for transformers and other electrical equipment designed to operate at high temperatures or at very low temperatures.

Properties Tested to ASTM 4652-92

Specifications
ParametersUnitValue
Appearance-Crystal clear liquid
Density at 25°C (77°F)kg/dm30.96
Viscosity at 25°C (77°F)mm2/s50
Water contentppm30
Specific heatkJ/kg.K1.51
Thermal conductivityW/(m.K)0.151
Refractive index at 25°C (77°F)-1.404
Breakdown voltagekV50
Permittivity-2.7
Dissipation factor-0.0001
Volume resistivityohm.cm1.0 × 1014
Flash point°C>300
Fire point°C370
APPLICATIONS (IEC 836 Test Requirements)
Property Test Method Permissible Values Typical SF 50TF Values
Physical
Color8Max 35-
Appearance8ClearClear
Density @ 20°C90.995 – 0.9700.96
Kinematic Viscosity @ 40°C1040 ± 450
Flash Point11Min 240260
Fire Point12Min 330370
Refractive Index131.404 ± 0.0021.404
Pour Point15-50-50
Chemical
Water Content16Max 5030
Neutralisation Value17Max 0.020.008
Electrical
Breakdown Voltage19Min 4050
Dielectric Dissipation Factor20Max 0.0010.0005
Permittivity202.55 ± 0.0522.7
d.c Resistivity20Min 1001000
Storage & Handling

Store in original containers in cool dry place away from sunlight.

Limitations

Not suitable for medical or pharmaceutical uses.

Select Language
Enquiry Packaging
  • 50 Kg – HDPE Drum
  • 200 Kg – HDPE Drum

APPLICATIONS

  • Meets the requirements of both IEC 836 & ASTM D 4652-92
  • Essentially non-toxic
  • Environmentally safe
  • Non-halogenated
  • Compatible with a wide range of solid electrical insulating materials
  • Contains no additives
  • Classified as non-hazardous
  • High thermal stability and oxidation resistance
  • Higher fire point and lower heat release rate than other types of class K insulating liquids
  • Good electrical properties and operating capabilities over a wide temperature range
  • Non-sludging