Bus Duct clearances

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kodiak

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What is the minimum clearance for bus duct above a drop ceiling? Does it have to be a certain distance from the deck?
 
Re: Bus Duct clearances

Generally busways must have their joints accessible for maintenance purposes. The NEC doesn't provide a specific answer to your question, however the manufacturer will usually provide specific clearances for the installation and maintenance of the busway. Information on busways is found in Article 368.
 
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