NFPA 33 Spray Booth Regulations and Guidelines - Spray
2018-9-11u2002·u20026.5.2: Electrical area classification NFPA-33, confirms that if spray application operations are conducted within a closed-top, open-face or open-front booth or room, as shown in Figure 6.5.2, any electrical wiring or utilization equipment located outside the booth or room but within 915mm (3 ft) of any opening shall be suitable for Class I ...
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