1. Dimension "B" in the outline dimension drawing must be completely immersed in oil to avoid burning components. The heated oil shall be non corrosive.
2. When melting asphalt, paraffin and other solid oils, the voltage shall be reduced for use, and the rated voltage shall be increased after melting. To prevent heat concentration and reduce the service life of components.
3. If it is found that there is coking on the surface of the pipe, it must be removed before reuse, so as not to reduce the efficiency or even burn the components.
4. The components shall be stored in a dry place. If the insulation resistance drops below 1 megohm due to long-term storage, the components can be dried in an oven at about 200 ℃ for several hours (or the components can be energized for several hours at low voltage), and the insulation resistance can be recovered