| abstract |
An insulating oil formulation having sufficient properties for the use of the formulation is provided. An insulating oil blend containing a base oil component having a flash point measured by ISO 2592 of 170 ° C. or higher and an additive, wherein (i) 80% by weight or more of the base oil component is Contains a series of isoparaffins with a paraffin content greater than 80 wt%, a saturate content greater than 98 wt%, and n, n + 1, n + 2, n + 3 and n + 4 (where n is 20 to 35) carbon atoms (Ii) the insulating oil formulation comprising an antioxidant additive. [Selection] Figure 1 |