Working spaces 3ph 4w delta

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Scott G

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Reference 110.26, in particular table 110.26 which identifies distance based off of Nominal voltage to ground.

On a 240V/120V 3phase 4wire system, would the ~ 208V stinger leg be regarded as the Nominal voltage?
 
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charlie b

charlie b

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Interesting question! Article 100 defines "Nominal Voltage" and "Voltage to Ground." But in 110.26 it uses "Nominal Voltage to Ground." So I suppose there is no accurate answer to your question. :D

That said, the voltage to ground of the stinger leg is more than 150. So you need to use the second row of that table.

Welcome to the forum.
 
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