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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 732:1999 The Europe
2、an Standard EN 732:1998 has the status of a British Standard ICS 97.040.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Specifications for dedicated liquefied petroleum gas appliances Absorption refrigerators Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:19 G
3、MT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 BSI 05-1999 ISBN 0 580 30756 5 BS EN 732:1999 Amendments is
4、sued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 732:1998. It supersedes BS 5258-6:1988 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GSE/24, Dedicated LPG appliances, to
5、Subcommittee GSE/24/-5, Refrigerating appliances, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and E
6、uropean developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI
7、 Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
8、 for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 24, an inside back cover and a back cover. Licensed Copy: sheffie
9、ldun sheffieldun, na, Tue Nov 07 08:52:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any for
10、m and by any means reserved worldwide for CEN national Members. Ref. No. EN 732:1998 E EUROPEAN STANDARDEN 732 NORME EUROPE ENNE EUROPA ISCHE NORM November 1998 ICS 97.040.30 Descriptors: household refrigerators, absorption refrigerators, gas appliances, liquefied petroleum gases, commercial butane,
11、 commercial propane, equipment specification, performance evaluation, safety, tests, marking, name plates, technical notices English version Specifications for dedicated liquefied petroleum gas appliances Absorption refrigerators Spe cifications pour les appareils fonctionnant exclusivement aux gaz
12、de pe trole lique fie s Re frige rateurs a absorption Festlegungen fu r Flu ssiggasgera te Absorber-Ku hlschra nke This was approved by CEN on 16 October 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
13、he status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, Germa
14、n). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Fin
15、land, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 732:1998 BSI 05-1999 Foreword This Eu
16、ropean Standard has been prepared by Technical Committee CEN/TC 181, Dedicated liquefied petroleum gas appliances, the Secretariat of which is held by NSAI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the l
17、atest by May 1999, and conflicting national standards shall be withdrawn at the latest by May 1999. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For re
18、lationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. This European Standard applies only to type testing. Items relating to quality assurance systems, production testing and particularly certificates of conformity of auxiliary equipment are not cover
19、ed by this European Standard. Particular attention should be paid to the suitability of non-metallic materials used in the construction of these appliances. A European Standard specifying Requirements for rubber materials for seals and diaphragms for gas appliances and equipment has been prepared by
20、 CEN/TC 108 (EN 549). A European Standard for Flexible hose, tubing and assembles for use with butane or propane in the vapour phase is being prepared by CEN/TC 218. These standards will be applicable to these types of appliances. This European Standard does not deal with the refrigeration aspects o
21、f the appliance and contains no specific requirements or tests for this. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germa
22、ny, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope4 2Normative references4 3Definitions4 4Classification6 4.1Classification of gases6 4.2Classification of appliances6 5Constructional and sa
23、fety characteristics6 5.1Test methods6 5.2Conversion to different gases6 5.3Materials6 5.4Cleaning and maintenance7 5.5Strength of the appliance7 5.6Soundness of the gas circuit assembly7 5.7Connections7 5.8Fixing the appliance7 5.9Taps and controls7 5.10 Control handles8 5.11 Injectors and by-pass
24、screws8 5.12 Ignition device8 5.13 Flame supervision device8 5.14 Appliance incorporating a gas container8 5.15 Verification of the nominal and minimum input9 5.16 Resistance to overheating9 5.17 Temperature of various parts of the appliance9 5.18 Temperature of the support, walls or adjacent surfac
25、es9 5.19 Temperature of auxiliary equipment9 5.20 Overheating/temperature of the LPG cylinder and, if applicable, its compartment9 5.21 Ignition and cross-lighting of the burner9 5.22 Flame stability10 5.23 Combustion10 5.24 Electrical safety10 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07
26、08:52:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 732:1998 BSI 05-1999 Page 6Test methods10 6.1General10 6.2Conversion to different gases11 6.3Materials11 6.4Cleaning and maintenance11 6.5Strength of the appliance11 6.6Soundness of the gas circuit assembly11 6.7Connections11 6.8Fixing de
27、vices11 6.9Taps and controls11 6.10 Control handles11 6.11 Injectors and by-pass screws11 6.12 Ignition devices11 6.13 Flame supervision devices11 6.14 Cylinder compartment11 6.15 Verification of the input of the burner13 6.16 Resistance to overheating14 6.17 Temperature of various parts of the appl
28、iance14 6.18 Temperature of support, walls and adjacent surfaces14 6.19 Temperature of auxiliary equipment14 6.20 Overheating/temperature of the LPG cylinder and, if applicable, its compartment14 6.21 Ignition and cross-lighting of the burner14 6.22 Flame stability16 6.23 Combustion16 6.24 Electrica
29、l safety16 7Marking and instructions19 7.1Appliance marking19 7.2Instructions for assembly, use and maintenance19 7.3Packaging marking19 Annex A (informative) National situations20 A.1Categories given in the body of the standard marketed in the different countries20 A.2Connection requirements in for
30、ce in various countries20 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives23 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 732:1998 BSI 05-1999 1 Scop
31、e This standard defines the constructional features, safety and operational requirements, test techniques and marking of absorption refrigerators using commercial butane and propane (referred to within the text as appliances). This standard is applicable to room sealed (type C11) and flueless (type
32、A11), as defined in CR 1749, refrigerators using gas equipment fuelled by third family gases as classified in 4.2. This standard only applies to type testing. The gas consumption of absorption refrigerators is of the same order of magnitude as pilots currently used on other types of burners, maximum
33、 being 60 g/h. Consequently efficiency measurement is not considered relevant for these appliances and is not covered by this standard. This standard does not cover the requirements for LPG gas containers and their associated regulators. 2 Normative references This European Standard incorporates by
34、dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of their publications apply to this European Standa
35、rd only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 88, Pressure governors for gas appliances for inlet pressures up to 200 mbar. EN 125, Flame supervision devices for gas burning appliances Thermo-electric fl
36、ame supervision devices. EN 126, Multifunctional controls for gas burning appliances. EN 161, Automatic shut-off valves for gas burners and gas appliances. EN 257, Mechanical thermostats for gas burning appliances. EN 298, Automatic gas burner control systems for gas burners and gas burning applianc
37、es with or without fans. EN 437, Test gases Test pressures Appliances categories. EN 60335-1, Safety of household and similar electrical appliances Part 1: General requirements. EN 60335-2-24, Safety of household and similar electrical appliances Part 2: Particular requirements for refrigerators, fo
38、od-freezers and ice makers. EN 60730-2-1, Automatic electrical controls for household and similar use Part 2: Particular requirements for electrical controls for electrical household appliances. EN 60730-2-9, Automatic electrical controls for household and similar use Part 2: Particular requirements
39、 for temperature sensing controls. ISO 71, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation. ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation. ISO 274, Copper
40、tubes of circular section Dimensions. CR 1749, European scheme for the classification of gas appliances according to the method of evacuation of the products of combustion (types). 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 auxiliary equipment all controls
41、and devices that can affect the safety of operation of a gas appliance, for example: taps; flame supervision devices; thermostats 3.2 appearance of yellow tips phenomenon characterized by the appearance of yellow colouration at the top of the blue cone on aerated flames 3.3 built-in-appliance applia
42、nce which is intended for fitting into a cupboard or a kitchen unit in a space cut into a panel or similar. Because of this the appliance does not necessarily have a casing on all sides 3.4 burner component that allows the gas to burn. It may be one of two types: non aerated burner, in which the air
43、 for combustion is entrained entirely at the burner outlet; aerated burner, in which part of the air for combustion, termed primary air, is entrained by the gas flow and mixed before the burner outlet. The remainder of the air, termed secondary air, is drawn in after the burner outlet 3.5 calorific
44、value quantity of heat produced by complete combustion at a constant pressure equal to 1 013,25 mbar, of unit volume or mass of the gas, the components of the fuel mixture being at 15 8C, 1 013,25 mbar, and the products of combustion being brought to the same conditions Licensed Copy: sheffieldun sh
45、effieldun, na, Tue Nov 07 08:52:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 732:1998 BSI 05-1999 There are two calorific values: the gross calorific value (symbol Hs): the water produced by combustion is assumed to be condensed; the net calorific value (symbol Hi): the water produced by
46、combustion is assumed to be retained in the vapour state. For the purposes of this standard only the gross calorific value is used. The calorific values are expressed in units of energy referred: either to the unit volume of dry gas measured under normal reference conditions: 15 8C, 1 013,25 mbar. I
47、t is expressed in megajoules per cubic metre (MJ/m3); or to the unit mass of dry gas. It is then expressed in megajoules per kilogram (MJ/kg). 3.6 control handle component intended for manual use to control the opening and closing, totally or partially, of a valve 3.7 detachable that which can be di
48、smantled without using a tool 3.8 feed piping piping intended for distribution of gas to the burner 3.9 flame lift phenomenon characterized by the partial or total movement of the base of the flame away from the burner port 3.10 flame supervision device device which, under the influence of the flame
49、 on the sensing element, keeps open the gas flow to the burner and which cuts off at least the gas supply to the burner in case of extinction of the supervised flame 3.11 gas rate adjuster device allowing gas rate to a burner to be set at a predetermined value according to the supply conditions. The adjustment can be continuous (adjustment screw) or discontinuous (changing the calibrated orifices, ). The operation of changing the setting of this device is termed the adjustment of the gas rate 3.12 g
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