(a) There shall be no open flame or spark- producing equipment in any spray area as defined in Section 15-24-550 nor within 20 feet thereof unless separated by a partition complying with the requirements of Section 15-24-570 except that such equipment may be operated within a spray area other than within a spray booth during such nonspraying periods when the spray area is free of a dangerous accumulation of flammable vapors and except as permitted in Section 15-24-570 drying apparatus, and Sections 15-24-680 to 15-24-700, electrostatic apparatus.
(b) Heating appliances, steampipes or hot surfaces shall not be located in any spray area where deposits of combustible residues may readily accumulate.
(c) Unless specifically approved for locations containing both deposits of readily ignitable residue and explosive vapor, there shall be no electrical equipment in any spray area whereon deposits of combustible residue may readily accumulate, except wiring in rigid conduit or in boxes or fittings containing no taps, splices or terminal connections and except as hereinafter provided in Section 15-24-860 relating to drying apparatus and Sections 15-24-680 to 15-24-700 relating to electrostatic spraying apparatus.
(d) Electrical wiring and equipment not subject to deposits of combustible residues but located in a spray area shall be of the explosion-proof type approved for use in such hazardous locations. Such area shall be considered a Class I Division 1 hazardous location as defined in Section 14E-5-500.
(e) Electrical wiring, motors and other equipment outside of but within 20 feet of any spray area and not separated, as directed in Section 15-24-570, shall not produce sparks under normal operating conditions. Such area shall be considered as Class I Division 2 hazardous locations as defined in Section 14E-5-500.
(f) Electric lamps outside but within 20 feet of any spray area and not separated therefrom as directed in Section 15-24-570 shall be totally enclosed to prevent the falling of hot particles and shall be protected from physical damage by suitable guards or by location.
(g) Portable electric lamps shall not be used in any spray area during spraying operations. Portable electric lamps used during cleaning or repairing operations shall be of the type specifically approved for Class I hazardous locations as defined in Section 14E-5-500.
(h) All metal parts of spray booths, exhaust ducts and piping systems conveying flammable liquids shall be electrically grounded in an effective and permanent manner, complying with the requirements of the electrical provisions of this Code.
(Prior code § 129.1-54; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 53)