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Specialty chemicals
EIOS T2-U Electrical Insulating Oil
About This Product
EIOS T2-U is an uninhibited electrical insulating oil produced from severely hydrotreated base oil and meeting the general specifications of Table 4 (Type B, TVBU) as defined in IEC 60296:2020, Edition 5.0. A high degree of purification gives excellent oxidation stability, dielectric strength and chemical stability, with non-corrosive sulfur chemistry, no DBDS and no PCBs. Typical performance includes breakdown voltage of 60 kV or more as delivered (over 80 kV after treatment), a pour point of −42 °C and a flash point of 156 °C, suiting high-voltage power and distribution transformers, switchgear and other oil-filled electrical equipment.
Specifications
StandardIEC 60296:2020 Ed. 5.0, Table 4
TypeType B, TVBU (uninhibited)
Viscosity @ 40 °C12 mm²/s max (typ. 8.6)
Pour point< −40 °C (typ. −42)
Breakdown voltage, as delivered30 kV min (typ. ≥60)
Breakdown voltage, after treatment70 kV min (typ. ≥80)
Density @ 20 °C0.895 g/cm³ max
DDF @ 90 °C0.005 max (typ. 0.0007)
Flash point135 °C min (typ. 156)
Corrosive sulfurNot corrosive
PCB / DBDS contentNot detectable
Applications
Power transformersDistribution transformersHigh-voltage switchgearCircuit breakersReactors & oil-filled capacitorsNew filling & topping-up
Packaging Options
- Steel drums
- Bulk / ISO tank
