Flash point value of transformer oil for each type

According to GB/ T261 Binski-Martin closed cup method, the sample oil was heated and heated, the heating rate was kept at 5 ℃ / min, and stirring was carried out. When the temperature reaches 23 ±5 ℃ before the predicted flash point, ignition begins, and for every 1 ℃ increase in the temperature of the oil sample, the ignition is carried out.

Flash point requirements for different grades of transformer oil

Flash point temperature of oil closure of 10 # transformer 140 ℃

Flash point temperature of 25 # transformer oil closure 140 ℃

45 # transformer oil closing flash point temperature 135 ℃