Oil Cup Cleaning Tips for Oil Dielectric Loss Tester:
1. After disassembling all measuring electrodes, thoroughly clean all parts sequentially with chemically pure petroleum ether (distillation range 60-90°C) and benzene;
2. Then rinse all parts with acetone, and then clean with neutral detergent.
3. Boil all parts in a 5% trisodium phosphate distilled water solution for 5 minutes, then rinse several times with distilled water;
4. Boil all parts in distilled water for at least 1 hour;
5. Dry all parts in an oven (85-110°C) for no less than 40 minutes;
6. When all parts have cooled to a temperature that is not hot to the touch, assemble the measuring electrodes. Note that during assembly, wrap each part with clean silk cloth and avoid direct hand contact. After assembly, measure the dissipation factor of the empty electrodes. At power frequency 2kV, it should not exceed 5×10⁻⁵; otherwise, clean again.
