(D) Portable Equipment
Exception No. 1: Where portable electric luminaires are required for operations in spaces not readily illuminated by fixed lighting within the spraying area, they shall be of the type identified for Class I, Division 1 or Class 1, Zone 1 locations where readily ignitible residues could be present. [33:6.9 Exception]
Exception No. 2: Where portable electric drying apparatus is used in spray booths and the following requirements are met:
- The apparatus and its electrical connections are not located within the spray enclosure during spray operations.
- Electrical equipment within 450 mm (18 in.) of the floor is identified for Class I, Division 2 or Class I, Zone 2 locations.
- All metallic parts of the drying apparatus are electrically bonded and grounded.
- Interlocks are provided to prevent the operation of spray equipment while drying apparatus is within the spray enclosure, to allow for a 3-minute purge of the enclosure before energizing the drying apparatus and to shut off drying apparatus on failure of ventilation system.