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Explosion-proof electrical equipment must have metal casings that are grounded. Additionally, equipotential bonding is necessary to prevent potential leakage currents due to insulation failure and to avoid the risk of electrical sparks from stray currents igniting explosive gas mixtures. For such equipment, grounding and equipotential bonding should be implemented in…

Different types of explosion-proof electrical equipment necessitate distinct casing protection standards. These standards, known as protection grades, denote the casing's capability to block external objects from penetrating its interior and to provide resistance against water ingress. According to the "Degrees of Protection Provided by Enclosures (IP Code)" (GB4208), a casing's…

In the realm of explosion-proof electrical applications, adhesives are required to exhibit robust bonding strength, outstanding weather resistance, and dependable thermal stability. As outlined in the "Explosive Atmospheres Part 1: Equipment General Requirements," for an adhesive to be deemed thermally stable, its Cure Operation Temperature (COT) range must comply with…

Electrical materials are essential in facilitating electricity transmission and primarily encompass conductive and insulating materials. Conductive Materials These are the conductive components of equipment, including cable cores, wiring terminals, contacts, and electrical connections. Such materials are required to have excellent electrical conductivity and mechanical strength. Insulating Materials These are used…

In the realm of engineering structural materials, particularly with engineering plastics, it's crucial to assess not just their mechanical and electrical characteristics, but also their thermal stability and ability to resist static electricity. Thermal Stability For explosion-proof electrical equipment, the plastic materials used in casings are required to demonstrate superior…