AS 4557-2009 Domestic outdoor gas barbecues.pdf

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1、 AS 45572004 (Incorporating Amendment No. 1) Australian Standard Domestic outdoor gas barbecues AS 45572004 This Australian Standard was prepared by Committee AG-001, Gas Appliances. It was approved on behalf of the Council of Standards Australia on 25 May 2004. This Standard was published on 4 Augu

2、st 2004. The following are represented on Committee AG-001: AGA (Network Operators) AGA Certification Services Appliance and Component Testing Australian Liquefied Petroleum Gas Association Ltd CSIRO Energy Technology Committee AG-001-03 Consumers Federation of Australia Energy Retailers Association

3、 of Australia Gas Appliance Manufacturers Association of Australia Gas Technical Regulators Committee This Standard was issued in draft form for comment as DR 03538. Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Stan

4、dard through their representation on the Committee and through the public comment period. Keeping Standards up-to-date Keeping Standards up-to-date Australian Standards are living documents that reflect progress in science, technology and systems. To maintain their currency, all Standards are period

5、ically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments that may have been published since the Standard was publ

6、ished. Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting www.standards.org.auwww.standards.org.au Standards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or amb

7、iguities. Contact us via email at mailstandards.org.aumailstandards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001. The Standard is downloaded from Standard Sharing AS 45572004 (Incorporating Amendment No. 1) Australian Standard Domestic outdoor gas barbecues Originated as A

8、G 1071975. Previous edition AS 45572001/AG 1072001. Revised and designated as AS 45572004. Reissued incorporating Amendment No. 1 (May 2009). COPYRIGHT Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical,

9、 including photocopying, without the written permission of the publisher. Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 6194 1 AS 45572004 2 PREFACE This Standard was prepared by the Standards Australia Working Group AG-001-00-08, Barbecues, under the responsi

10、bility of Standards Australia Committee AG-001, Gas Appliances to supersede AS 4557/AG 1072001, Domestic outdoor gas barbecues. This Standard incorporates Amendment No. 1 (May 2009). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the cl

11、ause, note, table, figure or part thereof affected. The objective of this Standard is to provide manufacturers, designers, regulatory authorities, testing laboratories and similar organizations with uniform minimum requirements for the safety, performance and use of domestic outdoor gas barbecues. T

12、his Standard should not be regarded as a design specification or as an instruction manual. In its preparation, consideration has been given to (a) continuity of satisfactory operation; (b) the prevention of fire hazards, and explosions; (c) the prevention of injury to persons or property; (d) gas ru

13、les and regulations now in force; and (e) relevant International Standards. The principal differences between this edition and AS 4557/AG 1072001, are: (i) Appliance gas piping connection requirements. (ii) Device to shut off or reduce gas flow requirements. (iii) Requirements for dismantling, repla

14、cement and reassembly by the user. (iv) Provision of hose assembly. (v) Changes to permanent markings. (vi) Changes to instructions requirements. (vii) Changes to gas leakage requirements. (viii) Changes to warning labels requirements. (ix) Changes related to outdoor areas. AS 5601/AG 601, Gas Insta

15、llations provides essential requirements and basic standards for gas installations. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative append

16、ix is only for information and guidance. Statements expressed in mandatory terms in notes to tables and figures are deemed to be requirements of this Standard. The Standard is downloaded from Standard Sharing 3 AS 45572004 CONTENTS Page SECTION 1 SCOPE AND DEFINITIONS 1.1 SCOPE 5 1.2 DEFINITIONS 5

17、SECTION 2 DESIGN AND CONSTRUCTION 2.1 GENERAL 14 2.2 MATERIALS AND STANDARDS. 16 2.3 ELECTRICAL REQUIREMENTS 18 2.4 APPLIANCE GAS PIPING CONNECTION REQUIREMENTS 19 2.5 MAINTENANCE REQUIREMENTS. 19 2.6 PRESSURE REGULATORS. 20 2.7 GAS CONTROLS . 21 2.8 IGNITION, PILOTS AND MAIN BURNERS 21 2.9 MARKINGS

18、 22 2.10 INSTRUCTIONS 24 SECTION 3 PRELIMINARY TESTS FOR LINE GASES 3.1 GENERAL REQUIREMENTS . 27 3.2 PREPARATION FOR TESTING 27 3.3 GAS LEAKAGE . 28 3.4 GAS CONSUMPTION 28 3.5 GAS PRESSURE REGULATORS 29 3.6 IGNITION AND SAFETY SHUT OFF SYSTEMS 29 SECTION 4 TESTS USING LIMIT CONDITIONS 4.1 GENERAL 3

19、1 4.2 CO/CO2 RATIO LIMITS OF ANY BURNEROVERLOAD . 31 4.3 IGNITION AT MAXIMUM AND MINIMUM LIMITING CONDITIONS 31 4.4 FLAME STABILITY WHEN CHANGING SETTING. 31 4.5 CO/CO2 RATIO LIMITS OF ANY INDEPENDENT SURFACE COMBUSTION BURNER - UNDERLOAD . 32 4.6 CO/CO2 RATIO LIMITS FOR PERMANENT PILOTS - OVERLOAD.

20、 32 4.7 FLAME CHARACTERISTICS MAXIMUM AND MINIMUM LIMITING CONDITIONS. 32 4.8 DELAYED IGNITION AT MAXIMUM AND MINIMUM LIMITING CONDITIONS. 32 4.9 NOISE OF EXTINCTION. 32 4.10 UNBURNT GAS RELEASE FROM BURNER SYSTEM 32 4.11 BURNER INTERFERENCE AT IGNITION OR DURING COMBUSTION 32 4.12 IGNITION AT TURND

21、OWN GAS CONSUMPTION 32 SECTION 5 PERFORMANCE TESTS 5.1 TEMPERATURE HAZARDS. 33 5.2 HEAT RESISTANCE 35 5.3 STRENGTH AND STABILITY 35 5.4 FLAME STABILITY TO DRAUGHT 36 5.5 RESISTANCE TO DOOR OPERATION 36 5.6 COOKING PERFORMANCE. 36 AS 45572004 4 APPENDICES A FIGURES A1 TO A6. 37 B METHODS OF TEST 47 C

22、 METER VOLUME CORRECTION FACTORS 94 D LIST OF REFERENCED DOCUMENTS . 96 E INDIVIDUAL CERTIFICATION CHECK LIST 98 F DIAGRAMMATICAL REPRESENTATIONS OF OUTDOOR AREAS 100 The Standard is downloaded from Standard Sharing 5 AS 45572004 www.standards.org.au Standards Australia STANDARDS AUSTRALIA Australi

23、an Standard Domestic outdoor gas barbecues S E C T I O N 1 S C O P E A N D D E F I N I T I O N S 1.1 SCOPE This Standard applies to domestic outdoor gas barbecues and solid fuel-to-gas conversion kits intended for use with natural gas, town gas, tempered liquefied petroleum gas (TLP) and low pressur

24、e (2.75 kPa) liquefied petroleum gas (LPG). NOTES: 1 AS 2658 covers various types of portable appliances not exceeding 12 MJ/h (250 g/h): with vaporized LP Gas to the inlet at the vapour pressure within the gas container (vapour pressure appliance), AG 403 covers radiant tube heaters. 2 Other statut

25、ory and regulatory requirements may be applicable to the product(s) that fall within the scope of this Standard. It is the manufacturers, importers or distributors responsibility (as appropriate) to ensure that products comply with such requirements. 1.2 DEFINITIONS 1.2.1 Appliance regulator A devic

26、e fitted to an appliance to control the gas pressure or gas volume delivered to that appliance. 1.2.2 Atmospheric burner A burner system where all the air for combustion is introduced by the inspirating effect of a gas injector and/or by the natural draught in the combustion chamber without mechanic

27、al assistance. 1.2.3 Authority Means the authority having jurisdiction or such authority as delegated, i.e. Technical Regulator. 1.2.4 Automatic burner A burner system that, on starting, follows a self-acting sequence that has been manually or automatically initiated, to provide gas and ignition to

28、the burner without any intermediate manual operation. 1.2.5 Automatic ignition The lighting of gas at a burner without a manual operation whenever gas flows from the burner. 1.2.6 Available gas (Line gas) Readily available gas with similar characteristics to the reference test gas. 1.2.7 Barbecue An

29、 underfired cooking appliance with either an open grid cooking top or a solid top. The food is cooked by a combination of radiant and convected heat and may be assisted by flared fat. AS 45572004 6 Standards Australia www.standards.org.au 1.2.8 Bayonet fitting A bayonet-style plug and mating socket

30、designed for attachment so that the gas is turned on only when the plug is inserted and secured in a lock-fit recess. 1.2.9 Burner port The opening in a burner through which gas or an air-gas mixture issues to be ignited and burned. 1.2.10 Certified Assessed by a certifying body, and having a certif

31、icate number to demonstrate compliance with a Standard. 1.2.11 Certifying body A body acceptable to the Technical Regulator that provides assurance of compliance of appliances and components with nominated standards or other accepted safety criteria. 1.2.12 CO/CO2 ratio The ratio by volume of carbon

32、 monoxide to that of carbon dioxide in the combustion products. 1.2.13 Combination gas control An assembly of two or more different control functions in a single body. 1.2.14 Combustible material Materials made of or surfaced with wood, compressed paper, plant fibres or other materials that will ign

33、ite and burn. 1.2.15 Combustion products Constituents resulting from the combustion of a fuel with oxygen, including the inerts associated with the fuel and the oxygen but excluding any other diluent or contaminant. 1.2.16 Consumer piping A system of pipes, fittings, components and equipment which c

34、onveys gas from the outlet of the consumer billing meter installation, or for gases stored in a tank or cylinder from the outlet of the first gas pressure regulator, to the appliance inlet. NOTE: In the case of a reticulated LP Gas system, the first gas pressure regulator refers to the first regulat

35、or on the site if no meter is installed. 1.2.17 Cooking grid The surface upon which the food to be cooked is placed. 1.2.18 Cross lighting Lighting of one burner from another either directly or by means of an intermediate flame. 1.2.18A Cylinder compartment A compartment beneath a barbecue or side b

36、urner, enclosed on at least three sides, that is intended to contain an LPG cylinder or cylinders either for storage or for direct connection to an inlet. 1.2.19 Determined gas consumption Gas consumption rate, measured in megajoules per hour, using reference gas at specified test pressures and with

37、 ambient conditions corrected to standard temperature and pressure. A1 The Standard is downloaded from Standard Sharing 7 AS 45572004 www.standards.org.au Standards Australia 1.2.20 Flame abnormality A flame condition that results in lifting, floating, lighting back, appreciable yellow tipping, car

38、bon deposition or objectionable odour. 1.2.21 Flame establishment period The total time for which the fuel valve is energized, beginning with the first energization of the valve and ending when the flame supervision system is first required to supervise the flame. 1.2.22 Flame failure response time

39、The time taken for the flame safeguard to detect loss of flame and de-energize the shut off valve. 1.2.23 Flame proving period The supervised period following the flame establishment period and before any further operation other than shutdown is permitted. 1.2.24 Flame safeguard A safety device that

40、 automatically cuts off the gas supply if the actuating flame is extinguished. 1.2.25 Flame safeguard system A system consisting of a flame detector(s) plus associated circuitry, integral components, valves and interlocks the function of which is to shut off the fuel supply to the burner(s) in the e

41、vent of ignition failure or flame failure. 1.2.26 Flash tube A device for igniting a gas burner in which a flame is made to travel to the burner ports through a tube in which an inflammable mixture of gas and air has been induced. 1.2.27 Gas A combustible fuel gas that may be one of the following: 1

42、.2.27.1 Natural gas (NG) A hydrocarbon gas consisting mainly of methane. 1.2.27.2 Simulated natural gas (SNG) A gas comprising a mixture of LPG and air, in the approximate proportions of 55% gas and 45% air for commercial propane. 1.2.27.3 Town gas (TG) A gas manufactured from coal or petroleum feed

43、stock. 1.2.27.4 Tempered liquefied petroleum gas (TLP) A gas comprising a mixture of LPG and air, in the approximate proportions of 27% gas and 73% air for commercial propane. 1.2.27.5 Liquefied petroleum gas (LPG) A gas composed predominantly of any of the following hydrocarbons, or any combination

44、 of them in the vapour phasepropane, propene (propylene), butane, butene (butylene). 1.2.28 Gas consumption The rate of energy consumed by an appliance under specific conditions and expressed in megajoules per hour (MJ/h). A1 AS 45572004 8 Standards Australia www.standards.org.au 1.2.29 Heating valu

45、e, gross (at constant pressure) The number of megajoules liberated when one cubic metre of dry gas, at standard conditions of temperature (15C) and absolute pressure (101.325 kPa), is completely burnt in air with all the water formed by the combustion process in the liquid state and with the product

46、s of combustion at standard conditions. NOTE: Calculation of heating value based upon ISO 6976 given in AS 4646. 1.2.30 Hose Flexible tube or pipe of multiple construction. 1.2.31 Hose assembly Flexible hose including end fittings connecting the gas supply to the appliance inlet. 1.2.32 Hotplate bur

47、ner A burner that heats from underneath, by direct flame contact, the base of vessels placed over it. 1.2.33 Injector A device that causes air to mix with a stream of gas. In the case of an aerated burner it incorporates an orifice discharging gas into the mixing throat or tube. 1.2.34 Jointing comp

48、ound A manufactured liquid, paste-like or semi-solid material used to seal joints. 1.2.35 Jointing material A manufactured solid material that may be in tape, cord or sheet form, used to seal joints. 1.2.36 Light back Transfer of the flame from burner port(s) into the body of the burner or back to t

49、he injector. 1.2.37 LPG See Gas. 1.2.38 Manual ignition 1.2.38.1 Direct manual ignition The lighting of a burner by the use of a hand held ignition device. 1.2.38.2 Remote manual ignition The lighting of a burner by a manual operation where the ignition activating device is remote from the ignition point. 1.2.39 Mixing tube That part of an atmospheric burner in which the air and gas are mixed. 1.2.40 Mobile appliance An