1. Monthly Visual Inspection: This must be performed monthly, focusing on key explosion-proof structures such as explosion-proof joints, fasteners, and interlocking devices, as well as the cleanliness of the equipment surface and its heat dissipation performance.
2. Annual Detailed Inspection: A comprehensive inspection must be conducted at least once a year by a qualified explosion-proof organization, including sealing performance testing, grounding resistance measurement (≤1Ω required), and intrinsically safe circuit parameter verification.
