AS NZS 4114 pdf download

AS NZS 4114 pdf download.Spray painting booths, designated spray painting areas and paint mixing rooms
1.1  Scope
This Standard specifies requirements for the design, construction, installation, maintenance and testing of spray painting booths and designated spray painting areas. This Standard also covers the requirements for paint mixing rooms in which flammable liquids are used. It also covers booths incorporating baking or heating cycles, using either direct or indirect heating systems. The requirements contained in this Standard are provided as a means to demonstrate conformance to the requirements for electrical equipment specified in AS/NZS 3000, Wiring Rules and the relevant requirements of the AS/NZS 60079 series. NOTE 1  Attention is drawn to other requirements that may be contained in respective legislation. NOTE 2  AS/NZS 60079.14 does not require conformance to this Standard but accepts this Standard as a means of conformance. Spray booths that may be constructed and installed to other codes or Standards may be accepted where they can be shown to be conformant with the essential safety requirements of AS/NZS 3000 and the AS/NZS 60079 series. This Standard applies to all types of paints including paints based on flammable liquids, water-based paints and water-soluble paints. NOTE 3  Water-based or water-soluble paints may also contain organic solvents in the formulation of the paint. This Standard does not apply to — (a) dry powder-type spray booths or operations, the requirements for which are detailed in AS 3754; or (b) ovens used for the sole purpose of drying or baking. This Standard does not address issues associated with: (i) Toxicity of the products or vapours resulting from the activities. Additional precautions may be required in this case. Where ventilation is used as a control measure for toxic aspects of the hazard, the ventilation arrangement will normally exceed the requirements for controlling any background concentration that may be considered for hazardous areas. (ii) Water quality and associated health aspects such as legionnaires disease
1.3  Terms and definitions
For the purpose of this document, the definitions given in the AS/NZS 60079 series and those below apply. 1.3.1 direct-fired heating system fuel-fired method of heating a forced air-stream where the combustion products are released with the heated air 1.3.2 hazardous area (on account of explosive gas atmospheres) area in which an explosive atmosphere is present, or may be expected to be present, in quantities such as to require special precautions for the construction, installation and use of equipment Note 1 to entry: Refer to AS/NZS 60079.10.1. Note 2 to entry: For the purpose of this Standard, an area is regarded as a three-dimensional region or space. Note 3 to entry: In this application the hazardous area classification can also be applied for other potential ignition sources such as, naked flames, sparks from grinding and welding operations and hot surfaces. 1.3.3 indirect-fired heating system fuel-fired method of heating a forced air-stream via a heat exchanger placed directly into the air-stream 1.3.4 operational area three dimensional zone bounded by the booth surfaces within the spray painting booth which persons normally access while performing the spray painting function Note 1 to entry: Where filters exist, the operational area may be bounded by the filters.1.3.5 paint mixing room room that may be associated with a spray painting booth, primarily for the purpose of preparation, mixing, clean-up and limited storage of flammable materials to be used in the spray painting booth 1.3.6 spray painting process in which a liquid coating substance, such as paint or lacquers, is converted into a mist or aerosol which is directed onto a surface 1.3.7 spray painting booth booth room, enclosure or partial enclosure and its associated components designed and dedicated solely for the purpose of conducting operations associated with spray painting