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What should be the appropriate ground resistance value for a heat exchanger?

2023-01-14View Original

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According to the standard HG/T20675-1990 \"Design Code for Static Grounding in Chemical Enterprises\" and the standard SH/T 3097-2017 \"Code for Design of Static Grounding in Petrochemical Industries\", the required grounding resistance value is 100 or 1000; however, searches online often show a requirement of 10Ω. How much is appropriate?
Reply #22023-01-14
The impulse grounding resistance of each down conductor for static equipment shall not exceed 10Ω.

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