BS EN 15001-2-2008 Gas infrastructure - Gas installation pipework with an operating npressure greater than 0 5 bar for industrial installations and ngreater than 5 bar for industri.pdf

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1、BS EN15001-2:2008ICS 23.040.01; 91.140.40NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas infrastructure Gas installationpipework with anoperating pressuregreater than 0,5 bar forindustrial installationsand greater than 5 barfor industrial and non-industrial

2、installationsPart 2: Detailed functionalrequirements for commissioning,operation and maintenanceThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 December2008 BSI 2008ISBN 978 0 580 54499 6Amendments/corrigenda issued since publicationDate Comme

3、ntsBS EN 15001-2:2008National forewordThis British Standard is the UK implementation of EN 15001-2:2008.The UK participation in its preparation was entrusted to TechnicalCommittee GSE/33, Gas supply.A list of organizations represented on this committee can be obtained onrequest to its secretary.This

4、 publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 15001-2:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15001-2November 20

5、08ICS 23.040.01; 91.140.40English VersionGas infrastructure - Gas installation pipework with an operatingpressure greater than 0,5 bar for industrial installations andgreater than 5 bar for industrial and non-industrial installations -Part 2: Detailed functional requirements for commissioning,operat

6、ion and maintenanceSystmes dalimentation en gaz - Canalisationsdinstallation de gaz avec une pression de servicesuprieure 0,5 bar pour les installations industrielles etsuprieure 5 bar pour les installations industrielles et nonindustrielles - Partie 2: Exigences fonctionnelles dtaillespour la mise

7、en service, lexploitation et la maintenanceGasversorgungssysteme - Gas-Leitungsanlagen mit einemBetriebsdruck grer 0.5 bar fr industrielle Installationenund grer 5 bar fr industrielle und nicht-industrielleInstallationen - Teil 2: Detaillierte funktionaleAnforderungen an Inbetriebnahme, Betrieb undI

8、nstandhaltungThis European Standard was approved by CEN on 11 October 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliogr

9、aphical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a C

10、EN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Ita

11、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 B

12、russels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15001-2:2008: EBS EN 15001-2:2008EN 15001-2:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 3.1 Definitions relating to pre

13、ssure5 3.2 Definitions relating to the gas installation 5 3.3 Definitions relating to means of isolation .6 3.4 Definitions relating to components .6 3.5 Definitions relating to tests 7 3.6 Definitions relating to commissioning, operation and maintenance .7 3.7 Definitions relating to pressure regul

14、ating and metering .8 4 General8 4.1 Technical file 8 4.2 Changes affecting an existing installation9 4.3 Quality system .9 4.4 Protection against hazards.9 4.5 Protection against adverse influences10 5 Commissioning10 5.1 General10 5.2 Purging .10 6 Operation and maintenance .11 6.1 Requirements in

15、volving operation and maintenance11 6.2 Operation 12 6.3 Maintenance .14 Bibliography 21 BS EN 15001-2:2008EN 15001-2:2008 (E) 3 Foreword This document (EN 15001-2:2008) has been prepared by Technical Committee CEN/TC 234 “Gas supply”, the secretariat of which is held by DIN. This European Standard

16、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by May 2009. Attention is drawn to the possibility that some of the elements of this document

17、 may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. There is a complete suite of functional standards prepared by CEN/TC 234 “Gas infrastructure” to cover all parts of the gas supply system from the input of gas to the

18、 transmission system up to the inlet connection of the gas appliances, whether for domestic, commercial or industrial purposes. In preparing this standard, a basic understanding of gas supply by the user has been assumed. In the event of conflicts in terms of more restrictive requirements in nationa

19、l legislation/regulation with the requirements of this standard, national legislation/regulation takes precedence as illustrated in CEN /TR 13737. NOTE CEN/TR 13737 contains: - clarification of relevant legislation/regulations applicable in a country; - if appropriate, more restrictive national requ

20、irements; - national contact point for the latest information. Gas supply systems are complex and the importance on safety of their construction and use has led to the development of very detailed codes of practice and operating manuals in the member countries. These detailed statements embrace reco

21、gnised standards of gas engineering and the specific requirements imposed by the legal structures of the member countries. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgiu

22、m, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15001-2:2008EN

23、 15001-2:2008 (E) 4 1 Scope This European Standard specifies detailed functional requirements for the commissioning, operation and maintenance of industrial gas installations and assemblies with an operating pressure greater than 0,5 bar and of non-industrial gas installations (residential and comme

24、rcial) with an operating pressure greater than 5 bar, starting from the outlet of the network operators point of delivery up to the inlet connection to the gas appliance; normally the inlet isolation valve. This European Standard also covers the inlet connection to the gas appliance comprising of th

25、e pipework that does not fall within the scope of the appliance standard. This standard applies to gas installations operating at ambient temperatures between 20 C and 40 C and operating pressures up to and including 60 bar. For operating conditions outside these limitations, reference should additi

26、onally be made to EN 13480 for metallic pipework. For industrial gas installations up to and including 0,5 bar and for non-industrial (residential and commercial) gas installations up to and including 5 bar EN 1775 applies. For gas installations that do not fall within the scope of EN 1775 or other

27、European Standards, this European Standard applies. In this European Standard, the term “gas“ refers to combustible gases, which are gaseous at 15 C and 1 013 mbar absolute atmospheric pressure. These gases are commonly referred to as manufactured gas, natural gas or Liquefied Petroleum Gas (LPG). T

28、hey are also referred to as first, second or third family gases (see table 1 of EN 437:2003). LPG storage vessels (including all ancillaries fitted directly to storage vessels) are excluded. Also excluded are LPG installations and sections of LPG installations operating at vapour pressure (e.g. betw

29、een the storage vessel and its pressure regulator). In this European Standard, all pressures are gauge pressures unless otherwise stated. For gas installations within the scope of this standard, national legislation and regulations have to be taken into account. Functional requirements for design, s

30、election of materials, construction, inspection and testing of industrial gas installations and assemblies with an operating pressure greater than 0,5 bar and of gas installations greater than 5 bar in buildings and areas intended for residential, commercial, public and mixed uses are described in p

31、rEN 15001-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12954, Cat

32、hodic protection of buried or immersed metallic structures General principles and application for pipelines prEN 15001-1, Gas installation pipework with an OP greater than 05 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations Part 1: Detailed func

33、tional requirements for design, materials, construction, inspection and testing BS EN 15001-2:2008EN 15001-2:2008 (E) 5 EN 60079-10, Electrical apparatus for explosive gas atmospheres Part 10: Classification of hazardous areas (IEC 60079-10:2002) EN 60079-14, Electrical apparatus for explosive gas a

34、tmospheres Part 14: Electrical installations in hazardous areas (other than mines) (IEC 60079-14:2002) EN 60079-17, Explosive atmospheres Part 17: Electrical installations inspection and maintenance (IEC 60079-17:2007) EN 60079-29-1, Explosive atmospheres Part 29-1: Gas detectors Performance require

35、ments of detectors for flammable gases (IEC 60079-21-1:2007, modified) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Definitions relating to pressure 3.1.1 pressure gauge pressure of the fluid inside the system, measured in static condition

36、s 3.1.2 design pressure (DP) pressure at which the design calculations are based; this is equivalent to the maximum allowable pressure (PS) as given in the PED 3.1.3 operating pressure (OP) pressure which occurs within pipework under normal operating conditions 3.1.4 maximum incidental pressure (MIP

37、) maximum pressure which pipework can experience during a short time, limited by the safety devices 3.2 Definitions relating to the gas installation 3.2.1 pipework assembly of pipes and fittings 3.2.2 components any item from which a gas supply system or installation is constructed. A distinction is

38、 drawn between the following groups of components: ancillaries (for example pressure regulators, valves, safety devices, expansion joints, and insulating joints); pipes, including bends made from pipe; instrumentation pipework; fittings (for example reducers, tees, factory-made elbows, flanges, dome

39、 ends, welding stubs, and mechanical joints) BS EN 15001-2:2008EN 15001-2:2008 (E) 6 3.2.3 point of delivery point where the gas is transferred to the user. NOTE This can be at a means of isolation or at the meter outlet connection and is normally at the point of transfer of ownership. 3.2.4 user(s)

40、 person(s) responsible for the safety of the gas installation and associated risks on a site NOTE Normally the user will be the site occupier or owner. It should be assumed that every user has a responsibility for work performed on their site, whether or not the work is performed directly for the us

41、er or not. This does not mean that they cannot take advice from an independent specialist. 3.2.5 installation pipework pipework including components and stations downstream of the point of delivery terminating at the appliance inlet connection NOTE This pipework is normally the property of the custo

42、mer 3.2.6 ventilated space space where the air is continuously changed by natural or mechanical means 3.2.7 duct space specifically designed and constructed for the passage of building services EXAMPLE Building services include gas pipework, water systems, power and telecommunication cables 3.2.8 ve

43、ntilation duct duct forming part of the structure of the building and intended exclusively for ventilation purposes 3.3 Definitions relating to means of isolation 3.3.1 means of isolation device that is intended to interrupt the gas flow in pipework EXAMPLE a manually operable valve 3.4 Definitions

44、relating to components 3.4.1 regulator device which reduces the gas pressure to a set value and maintains it within prescribed limits 3.4.2 insulating joint fitting installed to insulate electrically one section of pipework from another 3.4.3 sleeve protective pipe through which a gas pipe passes BS

45、 EN 15001-2:2008EN 15001-2:2008 (E) 7 3.4.4 vent pipe pipework connected to a safety or control device to release gas at a safe location 3.4.5 creep relief valve device designed to release a limited flow of gas in the event of an unacceptable pressure being detected within the system it protects 3.4

46、.6 instrumentation pipework pipework required for the proper functioning of the ancillaries installed within the pressure regulating installation EXAMPLES Sensing, measuring, auxiliary and sampling lines 3.5 Definitions relating to tests 3.5.1 strength test specific procedure intended to verify that

47、 the pipework meets the requirements for mechanical strength 3.5.2 tightness test specific procedure intended to verify that the pipework meets the requirements for tightness 3.5.3 leak detection fluid specially formulated fluid and foaming product that gives a clear indication that a leak exists wh

48、en applied to an element of pipework 3.6 Definitions relating to commissioning, operation and maintenance 3.6.1 admission of gas operation of replacing the air or inert gas contained in pipework with distributed gas 3.6.2 purging from gas operation of replacing the distributed gas in pipework with a

49、ir or inert gas 3.6.3 purging process for safety removing air or inert gas from pipework and/or pipeline components and replacing it with gas, or the reverse process. A distinction is made between the following methods: direct purging: the displacement of air by gas or vice versa; indirect purging: the displacement of air by inert gas followed by the displacement by gas or vice versa: alternatively by means of a barrier (a slug of inert gas or a pig) between the air and the gas or vice versa 3.6.4 commissioning activities require