Why is galvanized steel touching copper a problem

Plain-English answer

Copper and galvanized steel in contact can create galvanic corrosion, especially in damp areas. The support can become the thing that eats the pipe.

Notify the responsible trade/foreman, remove direct contact, and use approved copper-compatible clamps, isolation material, cushion clamp, or trade-specific support.

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Use this as training guidance. Foreman direction, approved drawings, project specs, manufacturer instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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