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Interpretation of a provision in the GB9448 Welding and Cutting Safety Standards

2025-11-07View Original

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The GB9448 Safety Regulations for Welding and Cutting stipulate that when performing arc welding on workpieces equipped with grounding (or neutral connection) systems, or when welding workpieces that are in close contact with the ground (such as pipes, metal supports of buildings, etc.), special care must be taken to ensure that neither the welding machine nor the workpiece is grounded twice. How should this sentence be understood?

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