Work space clearances.

[wyboy]

Does voltage to ground on the high leg of a 240 volt delta (typically 208 volts) count as the ?nominal voltage to ground? in Table 110.26(A)(1)?

 

[jim dungar]

Does voltage to ground on the high leg of a 240 volt delta (typically 208 volts) count as the ?nominal voltage to ground? in Table 110.26(A)(1)?

Yes.

 

[infinity]

I agree with Jim and for an ungrounded system you would need to look at the definition in Article 100.

Voltage to Ground. For grounded circuits, the voltage be-
tween the given conductor and that point or conductor of
the circuit that is grounded; for ungrounded circuits, the
greatest voltage between the given conductor and any other
conductor of the circuit.