| abstract |
Electrical oil formulation comprising a base oil component and an additive, wherein n(i) the base oil component is a paraffinic base oil obtained by hydroisomerisation of a Fischer-Tropsch derived wax, followed by dewaxing, the paraffin base oil having a paraffin content of greater than 80 wt% paraffins and a saturates content of greater than 98 wt% and comprising a series of iso-paraffins having n, n+1, n+2, n+3 and n+4 carbon atoms and wherein n is between 20 and 35; wherein the paraffin base oil has a kinematic viscosity at 40°C of between land 15 mm 2 /sec and a pour point of below -30°C; and n(ii) an anti-oxidant additive wherein the antioxidant additive is a hindered phenolic or amine anti-oxidant and wherein the content of anti-oxidant additive is less than 2wt% and greater than 10mg/kg;; nwherein the base oil component has a flash point of at least 170 °C, as determined by ISO 2592. |