Grounding of rooftop facilities for wind-cooled air conditioning units
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What are the specific regulations regarding the grounding of rooftop installations for wind-cooled air conditioning units? Can it be used normally during continuous thunder and lightning?
Of course it can be used; the air conditioner is powered by a three-phase five-wire system.
1. The roof must be equipped with a lightning rod to ensure that the air conditioning unit remains within the protection area of this lightning rod； 2. The air conditioning unit must be grounded, connected to the grounding wire on the parapet wall using a grounding wire or grounding copper strip.