The invention relates to an anti-explosion
safety design method of a
skin-effect anti-explosion power supply
junction box, which comprises a cable lead-in device, an element lead-out device, an input three-core cable, a shell, a connection terminal, anti-explosion insulation plaster, a
skin-effect
heating element and a high-temperature
electric wire. The method comprises the following steps of: 1. preferentially taking actual
skin-effect thickness to realize the
personnel safety and economical efficiency; 2. enabling the maximum surface temperature of the shell to reach a specified anti-explosion value by raising the temperature in a connecting line cavity; 3, guaranteeing the anti-explosion performance of the connecting line cavity by using an isolation structure to
cut off the gap of the connecting line cavity; 4. guiding static to a ground protection
insulation layer by using an
arc extinction electric wire; 5. meeting the anti-explosion requirements on electric clearance,
creep age distance, insulation material
comparative tracking index classification, and protection grade; 6. achieving electrical safety protection function and meeting the anti-explosion electrical safety requirement by arranging a grounding protection device on the surface. The invention solves the problems of the design of structure, installment and safety technology of anti-explosion power supply junction boxes in dangerous places and areas in an explosive
atmosphere.