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Specialty chemicals
EIOS T2-HI Electrical Insulating Oil
About This Product
EIOS T2-HI is an inhibited electrical insulating oil produced from severely hydrotreated base oil and meeting the general specifications of Table 3 (Type A, TVAI) as defined in IEC 60296:2020, Edition 5.0. The oxidation inhibitor (IEC 60666: 0.08–0.40, typically 0.35) gives markedly higher oxidation stability than uninhibited grades over the 500-hour IEC 61125 test — total acidity 0.3 mg KOH/g max (typically 0.01) and sludge 0.05% max (typically 0.01) — extending oil and transformer service life. The oil is non-corrosive, non stray gassing, with ultra-low sulfur, no DBDS and no PCBs, and typical breakdown voltage of 60 kV or more as delivered.
Specifications
StandardIEC 60296:2020 Ed. 5.0, Table 3
TypeType A, TVAI (inhibited)
Inhibitor (IEC 60666)0.08–0.40 (typ. 0.35)
Viscosity @ 40 °C12 mm²/s max (typ. 8.6)
Pour point< −40 °C (typ. −42)
Breakdown voltage, as delivered30 kV min (typ. ≥60)
Oxidation stability, acidity (IEC 61125, 500 h)0.3 mg KOH/g max (typ. 0.01)
Oxidation stability, sludge (IEC 61125, 500 h)0.05% max (typ. 0.01)
Total sulfur0.05% max (typ. 0.00001)
Stray gassingNon stray gassing
Flash point135 °C min (typ. 152)
PCB / DBDS contentNot detectable
Applications
Grid & GSU transformersPower transformersDistribution transformersHigh-voltage switchgearLong-service oil-filled equipmentNew filling & retrofilling
Packaging Options
- Steel drums
- Bulk / ISO tank
