1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Plastics piping systems for the trenchless replacement of underground pipeline networksPart 2: Replacement off the line by horizontal directional drilling and impact molingBS EN ISO 212252:2018National forewordThis Brit
2、ish Standard is the UK implementation of EN ISO 212252:2018. It is identical to ISO 212252:2018. The UK participation in its preparation was entrusted to Technical Committee PRI/88/3, Rehabilitation of pipeline systems using plastics piping materials and components.A list of organizations represente
3、d on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 942
4、23 5ICS 23.040.45; 91.140.80; 23.040.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affec
5、tedBRITISH STANDARDBS EN ISO 212252:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 212252May 2018ICS 23.040.20; 23.040.45; 91.140.80EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCENCENELEC Management Centre: Avenue Marnix 17, B1000 Bruss
6、els 2018 CEN Ref. No. EN ISO 212252:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersPlastics piping systems for the trenchless replacement of underground pipeline networks Part 2: Replacement off the line by horizontal directional drilling an
7、d impact moling (ISO 212252:2018)Systmes de canalisations en plastique pour le remplacement sans tranche des rseaux de canalisations enterrs Partie 2: Remplacement hors ligne par forage horizontal dirig et fonage par fuse (ISO 212252:2018)KunststoffRohrleitungssysteme zur grabenlosen Erneuerung von
8、erdverlegten Rohrleitungsnetzen Teil 2: Erneuerung in anderer Linienfhrung zur Ausfhrung von Durchpressungen und Durchbohrungen mit einer horizontalen Bohranlage (ISO 212252:2018)This European Standard was approved by CEN on 1 March 2018.CEN members are bound to comply with the CEN/CENELEC Internal
9、Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC Management Centre or to any CEN mem
10、ber.This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.CE
11、N members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
12、Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 212252:2018 (E)European forewordThis document (EN ISO 212252:2018) has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of
13、fluids” in collaboration with Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems” the secretariat of which is held by NEN.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by N
14、ovember 2018, and conflicting national standards shall be withdrawn at the latest by November 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.Acc
15、ording to the CENCENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany
16、, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 212252:2018 has been approved by CEN as EN ISO 212
17、252:2018 without any modification.iiBS EN ISO 212252:2018ISO 212252:2018Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 23.1 General . 33.2 Techniques 43.3 Geometrics 53.4 Materials . 63.5 Joints 74 Symbols and abbreviated terms . 74.1 Symbols . 74.2 Abbreviated
18、 terms . 85 Design aspects . 86 Material selection 86.1 Pipes and fittings . 86.2 Regional requirements for pipes and fittings . 96.3 Ancillary components . 97 Installation practice 97.1 Preparatory work . 97.2 Storage, handling and transport 97.3 Equipment 107.3.1 General. 107.3.2 Inspection equipm
19、ent 107.3.3 Lifting equipment .107.3.4 Butt fusion equipment and debeading equipment107.3.5 Pipe skids/rollers .107.3.6 HDD equipment .117.3.7 Impact moling equipment. 117.3.8 Electrofusion equipment . 127.4 Installation . 127.5 Processrelated inspection and testing . 137.6 Finishing off 137.7 Conne
20、ction to the existing pipeline system. 138 Fitness for purpose .148.1 General 148.2 Final inspection . 148.3 Pressure testing . 148.4 Disinfection . 148.5 Documentation 14Annex A (normative) Layered pipes .16Annex B (informative) Pipe design considerations particular to HDD 17Bibliography .19 ISO 20
21、18 All rights reserved iiiContents PageBS EN ISO 212252:2018ISO 212252:2018ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO te
22、chnical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and nongovernmental, in liaison with ISO, also take part in the work. ISO collaborates closel
23、y with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria nee
24、ded for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
25、rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in
26、this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World
27、 Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 8, Rehabilitation of pipel
28、ine systems.A list of all the parts in the ISO 21225 series can be found on the ISO website.iv ISO 2018 All rights reservedBS EN ISO 212252:2018ISO 212252:2018IntroductionSystem standards dealing with following applications are either available or in preparation for pipeline renovation: The ISO 1129
29、6 series: Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks; The ISO 11297 series: Plastics piping systems for renovation of underground drainage and sewerage networks under pressure; The ISO 11298 series: Plastics piping systems for renovation of unde
30、rground water supply networks; The ISO 11299 series: Plastics piping systems for renovation of underground gas supply networks.System standards dealing with all application areas are either available or in preparation for trenchless pipeline replacement: The ISO 21225 series: Plastics piping systems
31、 for the trenchless replacement of underground pipeline networks.The system standard ISO 21225 comprises: Part 1: Replacement on the line by pipe bursting and pipe extraction; Part 2: Replacement off the line by horizontal directional drilling and impact moling (this document).The requirements for t
32、echnique families are given in ISO 212251 and ISO 212252 (this document) respectively. For complimentary information, see ISO 112951.A consistent structure of clause headings has been adopted for all parts to facilitate direct comparisons across replacement standards.Figure 1 shows the common part a
33、nd clause structure and the relationship between ISO 21255 and the system standards for the renovation application areas. ISO 2018 All rights reserved vBS EN ISO 212252:2018ISO 212252:2018Figure 1 Technique families and clause structurevi ISO 2018 All rights reservedBS EN ISO 212252:2018Plastics pip
34、ing systems for the trenchless replacement of underground pipeline networks Part 2: Replacement off the line by horizontal directional drilling and impact moling1 ScopeThis document specifies requirements and test methods for pipes and fittings which are part of plastics piping systems for the trenc
35、hless replacement of various underground pipeline networks, underground nonpressure and pressure drainage and sewerage networks and underground water and gas supply networks, by means of horizontal directional drilling and impact moling.It is applicable to polyethylene (PE) pipes and fittings, as ma
36、nufactured, as well as to the installed replacement system.This document is intended to be used in conjunction with standards applicable for the construction of PE pipeline systems where available.Regarding manufactured pipes it is applicable to three different PE pipe types: PE solid wall single la
37、yered pipes (nominal outside diameter, dn), including any identification stripes; PE pipes with coextruded layers on either or both the outside and inside of the pipe (total outside diameter, dn), as specified in Annex A, where all layers have the same MRS rating; PE pipes (outside diameter, dn) hav
38、ing a peelable, contiguous, thermoplastics additional layer on the outside of the pipe (“coated pipe”), see Annex A.In addition it is applicable to: jointing of pipe lengths by means of butt fusion joint to form continuous strings prior to installation; fabricated and injection-moulded fittings made
39、 of PE.Pipes made from other plastics, e.g. polypropylene (PP) are outside the scope of this document.This document is not applicable to push-fit jointed discrete pipes assembled as part of the trenchless installation process.2 Normative referencesThe following documents are referred to in the text
40、in such a way that some or all of their content constitutes requirements 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.ISO 4427 (all parts), Plastics piping systems Poly
41、ethylene (PE) pipes and fittings for water supplyISO 4437 (all parts), Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) ISO 4633, Rubber seals Joint rings for water supply, drainage and sewerage pipelines Specification for materialsINTERNATIONAL STANDARD ISO 212252:2018 ISO
42、2018 All rights reserved 1BS EN ISO 212252:2018ISO 212252:2018ISO 8772, Plastics piping systems for non-pressure underground drainage and sewerage Polyethylene (PE)ISO 121761, Plastics pipes and fittings Equipment for fusion jointing polyethylene systems Part 1: Butt fusionISO 121762, Plastics pipes
43、 and fittings Equipment for fusion jointing polyethylene systems Part 2: ElectrofusionISO 16010, Elastomeric seals Material requirements for seals used in pipes and fittings carrying gaseous fuels and hydrocarbon fluidsEN 6811, Elastomeric seals Material requirements for pipe joint seals used in wat
44、er and drainage applications Part 1: Vulcanized rubberEN 6812, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 2: Thermoplastic elastomersEN 6813, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applica
45、tions Part 3: Cellular materials of vulcanized rubberEN 6814, Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 4: Cast polyurethane sealing elementsEN 682, Elastomeric seals Material requirements for seals used in pipes and fittings carrying g
46、as and hydrocarbon fluidsEN 15551, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 1: GeneralEN 15552, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 2: PipesEN 15553, Plastics piping systems for the supply of gaseous fuels Polyethylene
47、(PE) Part 3: FittingsEN 15555, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 5: Fitness for purpose of the systemEN 122011, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 1: GeneralEN 122012, Plastics pip
48、ing systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 2: PipesEN 122013, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 3: FittingsEN 122015, Plastics piping systems for water supply, and for d
49、rainage and sewerage under pressure Polyethylene (PE) Part 5: Fitness for purpose of the systemEN 126661, Plastics piping systems for non-pressure underground drainage and sewerage Polyethylene (PE) Part 1: Specifications for pipes, fittings and the system3 Terms and definitionsFor the purposes of this document the following terms and definitions apply.ISO and IEC maintain terminological databases for use in s
