Oil Dielectric Loss Tester Oil Cup Cleaning Tips:
1. After completely disassembling the 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, followed by cleaning with a neutral detergent.
3. Boil all parts in a 5% trisodium phosphate solution in distilled water 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. After all parts have cooled to a non-scalding temperature, 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.
