1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58and sewerage Polypropylene (PP) Part 3: Guidance for installationICS 23.040.01; 93.030Plastics pipi
2、ng systems for non-pressure underground drainage DRAFT FOR DEVELOPMENTDD CEN/TS 1852-3:2003Incorporating Amendment No. 1DD CEN/TS 1852-3:2003This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 24 June 2003 BSI 2006ISBN 0 580 42132 5appropria
3、te issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European standard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent in writin
4、g to the Secretary of BSI Subcommittee PRI/88/1,Non-pressure applications, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text.A list of organizations represented on this
5、 subcommittee can be obtained on request to its secretary. Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by usin
6、g the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.Summary of pagesThis document comprises a front cover, an inside front cover, the CEN/TS title page, pages 2 to 11 and a back cover.The BSI copyright date displayed in this document indicates when the document was
7、 last issued.Amendments issued since publicationAmd. No. Date Comments15689 30 June 2006 See national forewordCEN/TS. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Devel
8、opment are requested so that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at th
9、e end of its 3-year life. Notification of the start of the review period will be made in an announcement in the National forewordThis Draft for Development is the official English language version of CEN/TS 1852-3:2003, including amendment A1:2005. The start and finish of text introduced or altered
10、by CEN amendment is indicated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.This publication is not to be regarded as a British Standard. It is being issued in the Draft for Developm
11、ent series of publications and is of a provisional nature because it is a Technical Specification, adopted from a TECHNICAL SPECIFICATIONSPCIFICATION TECHNIQUETECHNISCHE SPEZIFIKATIONCEN/TS 1852-3April 2003ICS 23.040.01; 93.030English versionPlastics piping systems for non-pressure underground drain
12、ageand sewerage - Polypropylene (PP) - Part 3: Guidance forinstallationThis Technical Specification (CEN/TS) was approved by CEN on 23 November 2002 for provisional application. Amendment A1 wasapproved by CEN on 4 May 2005. The period of validity of this CEN/TS is limited initially to three years.
13、After two years the members of CEN will be requested to submit theircomments, particularly on the question whether the CEN/TS can be converted into a European Standard.CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available. Iti
14、s permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the final decision about the possibleconversion of the CEN/TS into an EN is reached.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue
15、 de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. CEN/TS 1852-3:2003 + A1:2005 EJune 2005+ A1(includes amendment A1:2005)CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czec
16、h Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.CEN/TS 1852-3:2003 (E)2ContentsForeword31 Scope42 Normative r
17、eferences43 Choice of stiffness (SN) series.43.1 General.43.2 Pipes.43.3 Fittings53.4 Application area code D.54 Storage in sunlight55 Handling and installation at low temperature.56 Push-fit joints (elastomeric sealings)67 Butt fusion joints.67.1 General.67.2 Jointing recommendations.68 Maximum dev
18、iation from straightness89 Connection to rigid structures.910 Repairs911 Connection to existing pipes.912 Testing on site.10Bibliography11CEN/TS 1852-3:2003 (E)3ForewordThis document (CEN/TS 1852-3:2003) has been prepared by Technical Committee CEN/TC 155, “Plastics pipingsystems and ducting systems
19、“, the secretariat of which is held by NEN.This Technical Specification is a Part of a System Standard for plastics piping systems of a particular material for aspecified application. There are a number of such System Standards.System Standards are based on the results of the work undertaken in ISO/
20、TC 138 “Plastics pipes, fittings andvalves for the transport of fluids“, which is a Technical Committee of the International Organization forStandardization (ISO).They are supported by separate standards on test methods to which references are made throughout the SystemStandard.The System Standards
21、are consistent with general standards on functional requirements and on recommendedpractice for installation.EN 1852 consists of the following Parts, under the general title Plastics piping systems for non-pressureunderground drainage and sewerage Polypropylene Part 1: Specifications for pipes, fitt
22、ings and the system Part 2: Guidance for assessment of conformity (ENV) Part 3: Guidance for installation (this Technical Specification)According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to announce this CEN Technical Specifica
23、tion: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom.Foreword to amendment A1This document (CEN/TS 1852-3:2003/A1:2005) has been
24、 prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of which is held by NEN. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this CEN Technical Specificatio
25、n: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. CEN/TS 1852-3:2003 (E)41
26、ScopeThis Technical Specification, together with ENV 1046 and EN 1610, provides a material-specific set of guidelinesfor the installation of piping systems made of polypropylene (PP) in the field of non-pressure underground drainageand sewerage. - outside the building structure (application area cod
27、e “U“); - both buried in ground within the building structure (application area code “D“) and outside the building.This is reflected in the marking of products by “U“ and “UD“.2 Normative referencesThis Technical Specification incorporates by dated or undated reference, provisions from other publica
28、tions. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this TechnicalSpecification only when incorporated in it by amendment or revisi
29、on. For undated references the latest edition ofthe publication referred to applies (including amendments).ENV 1046:2001, Plastics piping and ducting systems Systems outside building structures for the conveyance ofwater or sewage Practices for installation above and below groundEN 1295-1, Structura
30、l design of buried pipelines under various conditions of loading Part 1: GeneralrequirementsEN 1610:1997, Construction and testing of drains and sewersEN ISO 178, Plastics Determination of flexural properties (ISO 178:2001)EN ISO 9967, Plastics pipes Determination of creep ratio (ISO 9967:1994)3 Cho
31、ice of stiffness (SN) series3.1 GeneralPP pipe is a flexible pipe.When loaded a flexible pipe deflects and presses into the surrounding material. This generates a reaction in thesurrounding materials which controls deflection of the pipe. The amount of deflection, which occurs is limited by thecare
32、exercised in the selection and laying of the bedding and side fill materials.3.2 Pipes3.2.1 Standard procedureThe choice of the stiffness (SN) series may be made: when the same class of pipe has previously proved to be satisfactory in the same condition; or based on local practice (place of installa
33、tion, usual installation procedure and experience); or based on local regulation; or based on Tables 1 and 2 of ENV 1046:2001 or based on structural design.CEN/TS 1852-3:2003 (E)53.2.2 Structural designIf a static calculation is required, information on methods is given in EN 1295-1 and the followin
34、g parameters apply: Flexural modulus: E(1min) 1250 MPa determined in accordance with EN ISO 178; Creep ratio: g 75 mmc)Figure 1 Typical butt fusion techniquesThe method of butt fusion comprises three stages as follows.a) Surface preparationCheck that the matching surfaces for assembly are cut square
35、, without chamfer, and are free from defects.b) Heating of surfacesBefore starting the fusion process, check the operation of the fusion machine. Raise the temperature of the heateraccording to the manufacturers instructions, normally between 190 C and 220 C. Align the joint surfaces of thejointing
36、components to be fused and insert the hot heating plate between them. Press the two parts together withthe heating plate at a pressure in the fusion surface between 0,10 MPa and 0,20 MPa. Maintain the heating-uppressure until a bead of melt material is formed around the whole circumference of the pa
37、rts to be fused.Manufacturers instructions may include recommendation for parameters of the fusion operation as shown inFigure 2 including time intervals and related pressures together with the preferred ranges of temperature.CEN/TS 1852-3:2003 (E)8KeyPa1, Pa2(MPa) Heating pressures, high and lowPf1
38、(MPa) Fusion pressureta1, ta2(s) Heating times with high and low pressuresta(s) Total heating timetf1(s) Pressure build-up timetf2(s) Cooling timetf(s) Total cooling timetu(s) Change-over timeFigure 2 Parameters for fusion operationc) FusionRemove the hot plate and press the heated surfaces together
39、. Maintain the pressure according to themanufacturers instructions and a correctly alignment of the two components until the fusion zone has cooled.Specific parameters for fusing the parts together and for the cooling operation may be given in the manufacturersinstruction; see Figure 2.NOTE Do not a
40、ccelerate the cooling process by means of cold water or any other cooling equipment since this may impair the quality ofthe joint.8 Maximum deviation from straightnessPipes should normally be installed straight.However, as PP pipes are flexible, the following deviation from straightness (see Figure
41、3) will not cause problems:dn 200 mm: R 250 dn;dn 200 mm: R 400 dn.Care may be necessary to avoid any extra stress on the socket joint itself.The greatest permitted angular deflection in the socket should be as follows:2 for dn 315 mm;1,5 for 315 mm 630 mm.Larger angular deflections are permitted in
42、 case of joints specifically designed for large angular deflections. Inthese cases the manufacturer shall declare the designed angular deflection.!“CEN/TS 1852-3:2003 (E)9NOTE Approximately h L2/2R and a L/R.Figure 3 Parameters of deviation from straightness9 Connection to rigid structuresSpecial fi
43、ttings for this purpose are available. In such cases the manufacturers instructions should be followed.10 RepairsSlip-couplers or purpose-designed special fittings are available from manufacturers for effecting repairs. Becausedesigns vary, it is necessary to follow individual manufacturers instruct
44、ions. However, in the absence of suchinstructions, it is recommended that the following instructions are used:a) the full extent of the damaged or failed section shall be identified and removed;b) the cut pipe ends shall be square and shall be prepared for push-fit jointing as described in 6c);c) re
45、pair, or slip-, couplings shall be placed in position. The replacement pipe length shall then be laid on thesuitably prepared bed and the slip-couplings moved to their final positions (see Figure 4);d) the embedment shall then be replaced to give compaction values approximately equal to those immedi
46、atelyadjacent to the repair.Figure 4 Repairs using slip-couplers11 Connection to existing pipesFor PP pipelines an additional connection can be made in a manner similar to that for making a repair when anappropriate fitting is used. Alternatively, a saddle connection may be made, in which case the m
47、anufacturersinstructions should be followed.CEN/TS 1852-3:2003 (E)1012 Testing on sitePP non-pressure pipelines shall be tested according to the procedures described in clause 13 of EN 1610:1997.PP pipes are not porous, therefore it is possible to use more stringent parameters and requirements. In t
48、his case,the following are proposed:a) testing with air:- testing method : LC;- test pressure : 100 mbar (10 kPa);- pressure drop : 5 mbar (0,5 kPa);- testing time : 3 minfor dn 400 mm;0,01dnminfor dn 400 mm.b) testing with water:- 0,04 l/m2during 30 min for pipelines;- 0,05 l/m2during 30 min for ma
49、nholes and inspection chambers.CEN/TS 1852-3:2003 (E)11Bibliography1 EN 1852-1, Plastics piping systems for non-pressure underground drainage and sewerage Polypropylene (PP) Part 1: Specifications for pipes, fittings and the systemDD CEN/TS BSI389 Chiswick High RoadLondonW4 4AL1852-3:2003BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level.
