Is it illegal to use transparent grounding wire for chassis grounding in Electric Power Safety Regulations?

Don't belong. According to "Electric Power Safety Regulations", it is not illegal to use transparent grounding wire for casing grounding. According to the safety regulations, the welding machine shell must be grounded, and the grounding resistance shall not be greater than 4Ω. Grounding wire is a wire connected to the earth, shell or zero reference potential in electrical system or electronic equipment.