META ISOPROPYL BIPHENYL INSULATED ELECTRICAL APPARATUS

摘要

An electrical apparatus which contains dielectric liquid consists of at least 55% of meta isopropyl biphenyl dielectric liquid including non-isopropyl biphenyl to 15% unless it does not have any undesirable effect on the acaracteristics of dielectrics. Dielectric liquid include anti-oxidation stuff to 1% β-methylantraquinone is used in order to improve corona resistance.