1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-19730-8 SANS 50295-1:1991Edition 1 and EN amdts 1, 2, 3, nat. amdt 1EN 295-1:1991Edition 1 and amdts 1, 2, 3Any reference to SABS EN 295-1
4、 is deemedto be a reference to this standard(Government Notice No. 1373 of 8 November 2002)SOUTH AFRICAN NATIONAL STANDARD Vitrified clay pipes and fittings and pipe joints for drains and sewers Part 1: Requirements This national standard is the identical implementation of EN 295-1:1991 and EN amend
5、ments 1, 2 and 3, and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SAN
6、S 50295-1:1991 Edition 1 and EN amdts 1, 2, 3, nat. amdt 1 EN 295-1:1991 Edition 1 and amdts 1, 2, 3 Table of changes Change No. Date Scope EN amdt 1 1996 Amended to correct information in tables 10 and 11. EN amdt 2 1996 Amended to change the tensile strength of propylene for sleeve couplings in ta
7、ble 8 and to update tables 10 and 11. EN amdt 3 1999 Amended to update referenced standards, to correct cross references, to correct tables, to insert subclauses on airtightness and creep resistance of rigid fairing materials and to modify a subclause on joint interchangeability. Nat. amdt 1 2007 Am
8、ended to change the designation from SABS to SANS, with no technical changes. National foreword This South African standard was approved by National Committee StanSA TC 5120.61, Construction standards, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT
9、 agreement. This SANS document was published in June 2007. This SANS document supersedes SABS EN 295-1:1991 (edition 1). EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 295-1:1991/A3March 1999ICS 23.040.50English versionVitrified clay pipes and fittings and pipe joints for drains andsewers - Part
10、1: RequirementsTuyaux et accessoires en grs et assemblages de tuyauxpour les rseaux de branchement et dassainissement -Partie 1: ExigencesSteinzeugrohre und Formstcke sowie Rohrverbindungenfr Abwasserleitungen und -kanle - Teil 1: AnforderungenThis amendment A3 modifies the European Standard EN 295-
11、1:1991; it was approved by CEN on 28 January 1999.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of thisamendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concer
12、ning suchnational standards may be obtained on application to the Central Secretariat or to any CEN member.This amendment exists in three official versions (English, French, German). A version in any other language made by translation under theresponsibility of a CEN member into its own language and
13、 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, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerlan
14、d and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCentral Secretariat: rue de Stassart, 36 B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 295-
15、1:1991/A3:1999 EPage 2EN 295-1:1991/A3:1999ForewordThis Amendment EN 295-1:1991/A3:1999 to EN 295-1:1991 has been prepared by Technical Committee CEN/TC165 “Waste water engineering“, the secretariat of which is held by DIN.This Amendment to the European Standard EN 295-1:1991 shall be given the stat
16、us of a national standard, eitherby publication of an identical text or by endorsement, at the latest by September 1999, and conflicting nationalstandards shall be withdrawn at the latest by September 1999.For adaptation of EN 295-1:1991 to new published European Standards amendments were necessary.
17、 EN 295-1:1991 in the French version contains editorial mistakes concerning the use of auxiliary verbs. Foradaptation of the French version to the English and German version this amendment also contains a list of additionaleditorial amendments concerning only the French version und therefore are not
18、 put at disposal in English andGerman language.The CEN-members will decide whether the changes will be published separately from the original version of EN295:1:1991 or the changes will be incorporated in a revised publication of the standard. These options are allowedunder clause M.3 of the CEN/CEN
19、ELEC internal regulations Part 3.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxem
20、bourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.Amendments to EN 295-11. Sub-clause 1.2 Delete “EN 29002 : 1987 Quality Systems - Model for quality assurance in production and installation”2. Sub-clause 1.2 Delete “ISO/DIS 4633:1986Rubber seals - Joint rings fo
21、r water supply,drainage sewerage pipelines - Specification of materials”3. Sub-clause 1.2 Insert “EN 681-1:1996Elastomeric seals - Material requirements for pipe joint seals used in water and drainageapplications - Part 1 : Vulcanized rubber”4. Sub-clause 2.1 second paragraph Replace “defects” with
22、“imperfections”5. Sub-clause 2.5 Delete “Table 3” . Insert new Table 3Table 3 : Deviation from straightness in mm/m nominal length2505,0 4,5 4,06. Sub-clause 2.9 Delete “ Table 4”. Insert new table 4 and noteTable 4 : Crushing strength (FN) in kN/m DN 100 and 150Nominalsize (DN)Crushing strength(FN)
23、100150(22)(22)282834344040NOTE : Brackets around the strengths denote strengths where there are nodimensions given in Table 127. Delete “Table 5”. Insert new table 5 and notes.Page 3EN 295-1:1991/A3:1999Table 5 : Crushing strength (FN) in kN/m DN 200Nominalsize(DN)Class numberL*) 95 120 160 200 2402
24、002252503003504004505006007008001 0001 2004860606060434857677695(24)(28)(30)36424854607284963236404856647280964045506070804854607296NOTE : Brackets around the strengths denote strengths where there are nodimensions given in Table 11 and 12*) Lower strength pipes8. Delete table 6. Insert New Table 6T
25、able 6 : Bending moment resistance (BMR) in kN.m for crushing strength values (FN) in kN/mNominalsize (DN) FN BMR FN BMRFN BMR FNBMR100 22 1,0 28 1,3 34 1,7 40 2,0150 22 2,8 28 3,4 34 4,0 40 4,6200 24 5,2 32 6,2 40 7,4 48 8,6225 28 6,5 36 7,4 45 9,0 54 10,69. Sub-clause 2.14 Delete title, insert new
26、 title “Watertightness of pipes, bends and junctions”.Insert in first line after “pipes” “, bends, junctions”.Insert in 4th line before “internal” “wetted”.10. Sub-clause 2.18 Delete sub-clause, insert new sub-clause and Table 72.18 AirtightnessPipes, bends, junctions and pipe sections shall be test
27、ed in accordance with clause 13 ofEN 295-3:1991.The barrels shall be tested by either method LA, LB, LC or LD given in table 7 and shallwithstand an initial air pressure p0. The measured drop in pressure D p shall not be greaterthan the values given in table 7 for the appropriate test method, nomina
28、l size (DN) andtesting time.Page 4EN 295-1:1991/A3:1999Table 7 : Air test: initial pressure, pressure drop and testing timesTestingmethodInitialpressureDrop inpressureTesting time in minp0mmwatergaugeD p mmwatergaugeDN100DN150DN200DN225DN300DN400DN600DN800DN1000LA 100 25 5 5 5 5 7 10 14 19 24LB 500
29、100 4 4 4 5 6 7 11 15 19LC 1000 150 3 3 3 4 4 5 8 11 14LD 2000 150 1,5 1,5 1,5 1,5 2 2,5 4 5 711. Sub-clause 3.1.1 Delete “ISO/DIS 4633 1”Insert “EN 681-1”Delete the second paragraphDelete footnote “1) To be changed to EN. when published”12. Table 7 Renumber to Table 813. Sub-clause 3.1.2 2nd line d
30、elete “table 7”. Insert “table 8”.14. Table 8 Renumber to Table 915. Sub-clause 3.1.3 4th line delete “table 8”. Insert “table 9”.16. Insert new sub-clause 3.1.53.1.5 Creep resistance of rigid fairing materials Rigid fairing materials used in socket joints shall meet the requirements of either 3.1.5
31、.1 or 3.1.5.2.3.1.5.1 DeformationWhen tested in accordance with 23.1 of EN 295-3:1991 the regression values for t=100and t=104shall beless than 5% and 8% respectively where t is in minutes.3.1.5.2 IndentationWhen tested in accordance with 23.2 of EN 295-3 : 1991 the indentation after (24+00,50) h sh
32、all be less than0,5 mm. 17. Sub-clause 3.1.5 Renumber to 3.1.618. Table 9 Renumber to Table 1019. Sub-clause 3.3 3rd line delete “table 9”. Insert “table 10”.20. Sub-clause 3.6 Delete sub-clause, insert new sub-clause3.6 Joint interchangeabilityTable 11 covers dimensional jointing systems for which
33、the socket or socket fairing internal diameter (d4)is the controlling dimension. Table 12 covers dimensional jointing systems for which the spigot outsidediameter (d3) is the controlling dimension (see figure 1). Pipes and fittings of the same dimensional jointingsystem of the same nominal size, and
34、 the same class are directly interchangeable. Other jointing systemsare permitted provided that the pipes and fittings also comply with 2.2 and provided the joint assembliescomply with 3.1 where appropriate and 3.3 to 3.5, 3.7 to 3.9. Manufacturers of jointing systems withdimensions differing from t
35、ables 11 and 12 shall, when necessary, offer adaptors to connect to thedimensional requirements of systems given in tables 11 and 12.21. Table 10 Delete Table 10 insert new Table 11Page 5EN 295-1:1991/A3:1999Table 11 : Dimensions and tolerances for socket controlled jointing systemsDN ClassNumberFN
36、System A System B System C System DkN/md4*)mmmmd4*)mmmmd4*)mmmmd4*)mmmm100100- (28)34 146,8 0,5150150150-283440 185,8 0,2 195,0 0,5197,0202,0208,00,50,50,5204,5212,50,50,5200200200200(120)16020024024324048244,5248,50,20,2250,0252,0254,00,50,50,5260,0269,0275,00,50,50,5265,0269,00,50,5225225225(120)1
37、60200283645276,0281,00,20,2 300,0 0,5294,6306,00,50,5250250250250(120)16020024030405060306,8313,0319,00,20,20,2309,0313,0319,00,50.50,5317,5328,0341,50,50,50,5331,3336,50,60,630030030030012016020024036486072367,7373,70,250,25375,5371,5388,0398,50,50,50,50,5385,8409,80,60,6350350350120160200425670431
38、,5433,5459,00,50,50,5443,0455,0474,30,70,70,7400400400400400(95)1201602002403848648096483,5507,5515,5523,50,50,50,50,5521,0545,00,750,7545045045095120160435472547,0579,00,50,5572,0583,1600,00,750,750,7550050050095120160486080609,0605,0637,00,50,50,5639,0651,5662,30,50,50,5600600600600L95120160485772
39、96697,0720,0737,5758,00,50,50,50,5739,8751,00,50,5700700700L95120606784826,5840,0871,00,50,50,5842,0854,40,60,6800800800L95120607696932,0950,0976,00,50,50,5958,6967,60,70,7100010001000L95(120)60951201152,51203,00,50,51179,31195,50,80,81200 L 60 1380,0 0,5*) d4is the internal diameter of socket or so
40、cket fairing.NOTE : d4is measured within 20 mm of the shoulder of the socket. Page 6EN 295-1:1991/A3:199922. Table 11. Delete Table 11. Insert new Table 12.Table 12 : Dimensions and tolerances for spigot controlled jointing systemsDN Class NumberFN System E System F System G System HkN/md3*)mmmmd3*)
41、mmmmd3*)mmmmd3*)mmmm100100100100- (22)283440 122 1,51281311381,51,52,0131,40131,402,02,0122,0 1,5150150150150-(22)283440 178 1,51821861942,02,02,0187,75187,752,752,75178,0 1,5200200200200(120)160200240243240482312342372,02,02,02422482543,03,03,0244,90244,904,004,00225225225225(120)160200240283645542
42、592632662,02,02,02712813,03,0278,00278,004,004,00250250250250(120)160200240304050602872922963,03,03,02993183,04,030030030030012016020024036486072348 3543574,04,04,03553814,04,0374,00380,00380,004,004,004,00400400400120160200486480459 4694765,05,05,0498,00 5,00500 160 80 590 5,0600 160 96 716 6,0*) d3 is the mean value of the spigot outside diameter (i.e. circumference p ).23. Sub-clause 6.1 2nd paragraph after “in kNm if” delete “appropriate” insert “applicable” Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
