That is, the intrinsically safe electrical equipment used in mines is explosion-proof electrical equipment used in coal mines, which should comply with GB3836.4-20 10. This kind of explosion-proof mainly requires explosion-proof safety in circuit design principle and pays attention to circuit energy.
For more detailed answers, please refer to GB3836.4-20 10, GB3836. 18 and GB 3836. 19-205438+00.