BS PD 54823-2016 Guidance for the design commissioning and maintenance of LPG systems in small craft《小艇中液化石油气系统的设计 调试和维护指南》.pdf

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1、BSI Standards Publication PD 54823:2016 PUBLISHED DOCUMENT Guidance for the design, commissioning and maintenance of LPG systems in small craft This publication is not to be regarded as a British Standard.Publishing and copyright information The BSI copyright notice displayed in this document indica

2、tes when the document was last issued. The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 0 580 76232 1 ICS 47.080; 97.100.20 The following BSI references relate to the work on this document: Committee reference GME/33 Draft for comment 15/30281782 DC Publication

3、 history First published as CP 339-3, November 1956 First published as BS 5482-3, January 1979 Second edition, May 1999 First published as PD 5482-3, September 2005 First published as PD 54823, March 2016 Amendments issued since publication Date Text affected PD 54823:2016 PUBLISHED DOCUMENTContents

4、 Foreword ii 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 General 5 5 Pressure regulation devices 7 6 LPG supply line 8 7 Appliances 12 8 Location and installation of LPG cylinders 14 9 Ventilation 15 10 LPG installation tightness tests 15 11 Electrical devices for ignition sources

5、 18 12 Owners manual 18 13 Ducts and flues for air intake and combustion product discharge 18 14 Commissioning and maintenance tests 19 Annexes Annex A Cooking appliances with integral LPG cartridges with a capacity of 225 g or less 21 Annex B Design guidelines for pressure drop due to pipe resistan

6、ce 22 Annex C Area of fixed ventilation 22 Annex D Testing of the LPG supply line and appliances 23 Annex E Information and instructions for emergency procedures and safe usage 27 Annex F Test of flue performance for an appliance flue incorporating a draught diverter 30 Annex G LPG system tightness

7、test using a bubble tester 30 Annex H Testing pressure regulation device and appliance operating pressure 31 Bibliography 35 List of figures Figure1V entilators: prohibited zone for discharge openings for the products of combustion 19 List of tables Table 1 Conversion of heat inputs (kW) to gas rate

8、 (kg/h) 6 Table 2 Recommended off-takes for temperate climates 6 Table B.1 Pressure drop due to pipeline resistance 22 Table C.1 Minimum air vent free area for closed compartment (mm 2 per kW of appliance maximum net input) 23 Table D.1 Permissible pressure drop for test with appliances connected an

9、d LPG supplied by cylinder(s) or bulk tank installation pipework 24 Table H.1 Extract from standards showing pressure characteristics of various pressure regulation devices 33 Table H.2 Operating pressures 34 Summary of pages This document comprises a front cover, an inside front cover, pages i to i

10、v, pages 1 to 36, an inside back cover and a back cover. PUBLISHED DOCUMENT PD 54823:2016 The British Standards Institution 2016 iForeword Publishing information This Published Document is published by BSI Standards Limited, under licence from The British Standards Institution, and came into effect

11、on 31 March 2016. It was prepared by Technical Committee GME/33, Small craft. A list of organizations represented on this committee can be obtained on request to its secretary. Supersession This Published Document supersedes PD 5482-3:2005, which is withdrawn. Relationship with other publications Th

12、is document is a supplement to BS EN ISO 10239:2014, unlike its predecessor, PD 5482-3:2005, which was a stand-alone document. As such, reference might need to be made to BS EN ISO 10239:2014 for more information in certain circumstances, including the fitting of additional appliances or major syste

13、m modification. However, for design, commissioning and maintenance, this document gives sufficient guidance. If any conflict arises between the two documents, then BS EN ISO 10239:2014 takes precedence. Information about this document This is a full revision of the Published Document, and introduces

14、 the following principal changes: the identifier has been changed to PD 54823, as the Published Document has been revised in such a way that it no longer belongs in the 5482 series; the text has been revised to supplement BS EN ISO 10239:2014, concerning the design, commissioning and maintenance of

15、small craft LPG installations; gas tightness testing of LPG supply line and appliances has been improved; and an annex covering cooking appliances with integral LPG cartridges has been added. Hazard warnings WARNING. This Published Document calls for the use of substances and/or procedures that can

16、be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Use of this document As a guide, this Published Document takes the form of guidance and recommendatio

17、ns. It should not be quoted as if it were a specification or a code of practice and claims of compliance cannot be made to it. Presentational conventions The provisions of this Published Document are presented in roman (i.e. upright) type. Its recommendations are expressed in sentences in which the

18、principal auxiliary verb is “should”. Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. PUBLISHED DOCUMENT PD 54823:2016 ii The British Standards Institution 2016Contractual and legal considerations This publica

19、tion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Published Document cannot confer immunity from legal obligations. Particular attention is drawn to the Gas Safety (Installation and Use) Regulations 1, 2,

20、 3, 4. NOTE Guidance on the individual competency for gas work and other guidance regarding legislation is given in the Health and Safety Executives Approved Code of Practice L56 (ACOP) 5. PUBLISHED DOCUMENT PD 54823:2016 The British Standards Institution 2016 iiiPUBLISHED DOCUMENT PD 54823:2016 Thi

21、s page deliberately left blank iv The British Standards Institution 20161 Scope This Published Document gives guidance for the design, commissioning and maintenance of LPG (liquefied petroleum gas) systems, including replacement appliances, replacement hose and replacement piping. It covers permanen

22、tly installed gas burning installations in small craft 1) of up to 24 m in length, using LPG operating at a nominal pressure of up to 50 mbar 2) . The LPG is from either cyclinders stowed on board or the on-board aspects of the gas system in the situation of a fixed shore bulk supply. This Published

23、 Document also covers cooking appliances with integral LPG cartridges, for which guidence is given in Annex A. This Published Document does not cover: new system installation requirements as covered in BS EN ISO 10239:2014; major system modification for which BS EN ISO 10239:2014 is to be used for i

24、nstallation requirements; additional appliances (including additional piping and additional hose) added to an existing system for which BS EN ISO 10239:2014 is to be used for installation requirements; on-shore installation of bulk supplies of LPG; catering equipment; portable LPG-burning appliances

25、 not covered in Annex A; the installation of LPG generators; or the use of LPG for propulsion of vessels for which guidance is given in UKLPG Code of Practice 18 6 or BS EN 15609. NOTE Further information on gas supply systems to permanently moored craft can be found in IGEM/G/6 7. 2 Normative refer

26、ences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. B

27、S 669 (both parts), Flexible hoses, end fittings and sockets for gas burning appliances BS 1552, Specification for open bottomed taper plug valves for 1st, 2nd and 3rd family gases up to 200 mbar BS 6172, Specification for installation, servicing and maintenance of domestic gas cooking appliances (2

28、nd and 3rd family gases) BS 6362 (ISO 7598), Specification for stainless steel tubes suitable for screwing in accordance with BS 21 “Pipe threads for tubes and fittings where pressure-tight joints are made on the threads” BS 6956 (all parts), Jointing materials and compounds BS 7838, Specification f

29、or corrugated stainless steel semi-rigid pipe and associated fittings for low-pressure gas pipework of up to DN 50 1) Attention is drawn to the various Merchant Shipping Acts that apply to British registered ships. 2) 1 mbar = 102 N/m 2 = 0.1 kPa = 100 Pa. PUBLISHED DOCUMENT PD 54823:2016 The Britis

30、h Standards Institution 2016 1BS EN 331, Manually operated ball valves and closed bottom taper plug valves for gas installations in buildings BS EN 449, Specification for dedicated liquefied petroleum gas appliances Domestic flueless space heaters (including diffusive catalytic combustion heaters) B

31、S EN 549, Specification for rubber materials for seals and diaphragms for gas appliances and gas equipment BS EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 2: Non-hardening jointing compounds BS EN 751-3, Sealing materials f

32、or metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water Part 3: Unsintered PTFE tapes BS EN 1057, Copper and copper alloys Seamless, round copper tubes for water and gas in sanitary and heating applications BS EN 1254-2, Copper and copper alloys Plumbing fittings Part

33、 2: Fittings with compression ends for use with copper tubes BS EN 13878, Leisure accommodation vehicles Terms and definitions BS EN 14291, Foam producing solutions for leak detection on gas installations BS EN 14324, Brazing Guidance on the application of brazed joints BS EN 15266, Stainless steel

34、pliable corrugated tubing kits in buildings for gas with an operating pressure up to 0,5 bar BS EN 16129:2013, Pressure regulators, automatic change-over devices, having a maximum regulated pressure of 4 bar, with a maximum capacity of 150 kg/h, associated safety devices and adaptors for butane, pro

35、pane, and their mixtures BS EN 28846, Small craft Electrical devices Protection against ignition of surrounding flammable gases BS EN ISO 8434-1:2007, Metallic tube connections for fluid power and general use Part 1: 24 degree cone connectors BS EN ISO 9094 (all parts), Small craft Fire protection B

36、S EN ISO 10239:2014, Small craft Liquified petroleum gas (LPG) systems BS EN ISO 17672, Brazing Filler metals ISO 7-1, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation 3 Terms and definitions For the purposes of this Published Document,

37、the terms and definitions given in BS EN 13878 and the following apply. 3.1 accessible capable of being reached for inspection, removal or maintenance, without removal of a permanent vessel structure NOTE Hatches are not deemed to be permanent vessel structures, even if tools are required to open th

38、em. 3.2 additional appliance appliance that would be an extra appliance to a system 3.3 additional hose hose required for the fitting of a new appliance PUBLISHED DOCUMENT PD 54823:2016 2 The British Standards Institution 20163.4 additional piping piping required for the fitting of a new appliance 3

39、.5 bourdon gauge dial-type pressure gauge NOTE Examples of bourdon gauges are those conforming to BS EN 837-1. 3.6 combustion products discharge safety device device that causes at least safety shutdown of the main burner when there is an unacceptable spillage of combustion products from the draught

40、 diverter of type B 11BS water heaters 3.7 conventionally flued instantaneous water heater water heater of the B 11BS type NOTE A type B 11BS is a type B 11 appliance fitted with a combustion products discharge safety device. A type B 11 is a natural draught type B 1 appliance. A type B 1 is a type

41、B appliance incorporating a draught diverter. A type B is an appliance intended to be connected to a flue that evacuates the products of combustion to the outside of the room containing the appliance. The combustion air is drawn directly from the room in which the appliance is installed. 3.8 cylinde

42、r portable and refillable vessel of approved design, used to contain LPG under pressure 3.9 cylinder housing ventilated enclosure intended solely for storage of one or more LPG cylinders, pressure regulation device and safety devices, and located so that leakage flows to the outside SOURCE: BS EN IS

43、O 10239:2014, 3.3 3.10 cylinder locker enclosure which is vapour tight to the interior of the craft with a drain to the outside intended solely for storage of one or more LPG cylinders NOTE The cylinder locker need only be vapour tight to the highest point of the cylinder valve, pressure regulation

44、device or high pressure side components. 3.11 existing system LPG system installed prior to the implementation of this document NOTE Annex A of the previous edition of this standard (PD 5482-3:2005) defined an existing system as one which was installed prior to 15 May 1999. This definition also appl

45、ies. 3.12 flame supervision device device that has a sensing element, that causes the inlet of the LPG supply to a burner to be opened in the presence of a flame and closed in the absence of a flame 3.13 high pressure side part of an installation between the cylinder valve and the inlet of a pressur

46、e regulation device in an LPG system NOTE 1 Vapour pressure at 20 C for propane = 700 kPa and for butane = 175 kPa. NOTE 2 1 kPa = 10 mBar. NOTE 3 This was formerly known as the high pressure stage. PUBLISHED DOCUMENT PD 54823:2016 The British Standards Institution 2016 33.14 hose pipeline of flexib

47、le material SOURCE: BS EN ISO 10239:2014, 3.13 3.15 interior space enclosed space that is surrounded by permanent boat structure and that is intended to remain dry during normal use SOURCE: BS EN ISO 10239:2014, 3.6 3.16 let-by internal gas leakage past a shut-off valve seat when fully closed 3.17 l

48、iquefied petroleum gas (LPG) mixture of light hydrocarbons, gaseous under conditions of normal temperature and pressure, and maintained in the liquid state by increase of pressure or lowering of temperature NOTE 1 The principal components are propane, propene, butanes or butenes. NOTE 2 LPG can be o

49、btained as commercial butane, commercial propane or a mixture of the two. SOURCE: BS EN ISO 10239:2014, 3.1 3.18 LPG system system consisting of an arrangement of cylinder(s), safety device(s), pressure regulation device(s), connection(s), valve(s), piping, tubing, hose, fitting(s) and devices intended to store, supply, monitor or control the flow of LPG up to and including the appliance NOTE The cylinders are replacement items and might or might not be supplied with the