View all text of Subpart 111.33 [§ 111.33-1 - § 111.33-11]
§ 111.33-9 - Ventilation exhaust.
The exhaust of each forced-air semiconductor converter system must:
(a) Terminate in a location other than a hazardous location under Subpart 111.105 of this part; and
(b) Not impinge upon any other electric device.