California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 20 - Flammable Liquids, Gases and Vapors › Article 137 - Spray Coating Operations › Section 5454 - Fixed Electrostatic Apparatus

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) This Section shall apply to any equipment
						using electrostatically charged elements for the atomization, charging and (or)
						precipitation of hazardous materials for coatings on articles or for other
						similar purposes in which the charging or atomizing device is attached to a
						mechanical support and is not hand-held or manipulated.
(b) Electrostatic apparatus and devices used
						in connection with coating operations shall be of approved types.
(c) Transformers, high voltage supply,
						control apparatus, and all other electrical portions of the equipment, with the
						exception of high voltage grids, electrodes and electrostatic atomizing heads
						and their connections, shall be located outside of the spraying area or shall
						otherwise conform to the requirements of Section
						5449.
(d) Electrodes and electrostatic atomizing
						heads shall be supported in permanent locations and shall be insulated from
						ground. Electrodes and electrostatic atomizing heads which are permanently
						attached to their bases, supports, or reciprocators, shall be deemed to comply
						with this Section. Insulators shall be nonporous. Fine wire elements when used
						shall be under tension at all times and be of unkinked hardened steel or
						material of comparable strength.
(e) High voltage leads shall be properly
						insulated and protected from mechanical injury or exposure to destructive
						chemicals. Any exposed element at high voltage shall be effectively guarded
						against accidental contact or grounding. An automatic means shall be provided
						for grounding the electrode system when the primary of its high voltage supply
						is electrically deenergized for any reason.
(f) All insulators shall be kept clean and
						dry.
(g) A safe distance shall be
						maintained between goods being painted and electrodes or electrostatic
						atomizing heads or conductors of at least twice the sparking distance. A
						suitable sign indicating this safe distance shall be conspicuously posted near
						the assembly.
(h) Goods being
						coated using this process shall be supported on conveyors or hangers. The
						conveyors or hangers shall be so arranged as to assure that the parts being
						coated are electrically connected to ground and to maintain safe distances
						between the goods and the electrodes or electrostatic atomizing heads at all
						times. Goods shall be supported to prevent swinging or movement which would
						reduce the clearance to less than that specified in (h).
(i) Electrostatic apparatus shall be equipped
						with automatic means which will rapidly de-energize and ground the high voltage
						elements under any of the following conditions:
(1) Stoppage of ventilating fans or failure
						of ventilating equipment from any cause.
(2) Stoppage of the conveyor carrying goods
						through the high voltage field.
(3)
						Occurrence of a ground or excessive current leakage at any point on the high
						voltage system.
(4) Reduction of
						clearance below that specified in (g).
(5) De-energizing the primary of the power
						supply.