Conduit systems buried underground for the protection and management of insulated electrical cables or communication cables - Part 2: Polyethylene (PE), Polypropylene (PP) or Unplasticized poly(vinyl chloride) (PVC-U) conduit systems - Requirements for solid wall conduits, fittings and the system used in special applications

This European Standard specifies particular requirements and tests for conduit systems buried underground for the protection and management of insulated conductors and/or power cables or communication cables that are installed by different techniques, for example, blowing (including floating), pulling or pushing directly after installation of the conduit or during its expected performance time. This standard is applicable to all conduits with circular cross section manufactured individually or manufactured as a part of an assembly NOTE Reference is made to other documents for additional material requirements where applicable.

Erdverlegte Elektroinstallationsrohrsysteme für den Schutz und die Führung isolierter elektrischer Kabel oder Fernmeldekabel - Teil 2: Elektroinstallationsrohrsysteme aus Polyethylen (PE), Polypropylen (PP) oder weichmacherfreiem Poly(vinylchlorid) (PVC-U) - Anforderungen an Vollwandrohre, Rohrzubehörteile und spezielle Anwendungen

Systèmes de conduits enterrés dans le sol pour la protection et la gestion des câbles électriques isolés ou des câbles de communication - Partie 2: Systèmes de conduits en polyéthylène (PE), en polypropylène (PP) ou en poly(chlorure de vinyle) non plastifié (PVC-U) - Exigences pour les conduits à paroi pleine, les accessoires et le système utilisé dans les applications spéciales

Le présent document spécifie les exigences et les essais applicables aux systèmes de conduits à paroi pleine étanche en PE, en PP et en PVC-U de section circulaire, fabriqués individuellement ou faisant partie d'un assemblage ayant une durée d’utilisation spécifiée et enterrés dans le sol à une profondeur maximale de 6 m pour la protection et le rangement des conducteurs isolés et/ou les câbles électriques ou de communication. Les applications qui exigent des systèmes de conduits à paroi pleine étanche sont les suivantes: — l’installation de câbles dans les conduits par soufflage: — l’installation de câbles dans les conduits par flottage: — les installations de conduits sans tranchées. Le présent document s'applique aux conduits avec ou sans emboîture intégrée et accessoires. NOTE 1 Les conduits dans lesquels les câbles ont été installés par soufflage ou par flottage peuvent également être installés suivant des méthodes conventionnelles. NOTE 2 L’installation des câbles peut également être réalisée par tirage et insertion. NOTE 3 Au sein d'un système de conduits thermoplastique, il est possible d’utiliser des accessoires composés d’autres matériaux, mais ceux-ci ne sont pas spécifiés dans le présent document. NOTE 4 Il est de la responsabilité de l’acheteur ou au prescripteur de prendre en compte tous les règlements nationaux appropriés et les pratiques ou les codes d'installation lors du choix des produits à installer, en fonction des caractéristiques spécifiées dans le présent document. NOTE 5 Les microconduits sont couverts par la partie correspondante de la série EN 60794.

Podzemni kanalski sistem za zaščito in upravljanje izoliranih električnih ali komunikacijskih kablov - 2. del: Polietilenski (PE), polipropilenski (PP) ali neplastificirani polivinilkloridni (PVC-U) vodovodni sistemi - Zahteve za masivne stenske vodnike, armature in sistem, ki se uporablja v posebnih aplikacijah

General Information

Status
Not Published
Publication Date
27-Apr-2023
Current Stage
4599 - Dispatch of FV draft to CMC - Finalization for Vote
Start Date
26-Sep-2022
Completion Date
26-Sep-2022

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Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 50626-2:2017
01-april-2017
3RG]HPQLNDQDOVNLVLVWHP]D]DãþLWRLQXSUDYOMDQMHL]ROLUDQLKHOHNWULþQLKDOL
NRPXQLNDFLMVNLKNDEORYGHO3RVHEQH]DKWHYH]DNDQDOH]DSRVHEQRXSRUDER

Conduit systems buried underground for the protection and management of insulated

electrical cables or communication cables - Part 2: Particular requirements for conduits

for special applications

Systèmes de conduits enterrés dans le sol pour la protection et la gestion des câbles

électriques isolés ou des câbles de communication - Partie 2: Exigences particulières

pour conduits destinés aux applications spéciales
Ta slovenski standard je istoveten z: prEN 50626-2:2017
ICS:
29.120.10 ,QãWDODFLMVNHFHYL]D Conduits for electrical
HOHNWULþQHQDPHQH purposes
oSIST prEN 50626-2:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50626-2:2017
---------------------- Page: 2 ----------------------
oSIST prEN 50626-2:2017
EUROPEAN STANDARD DRAFT
prEN 50626-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
ICS 29.120.10
English Version
Conduit systems buried underground for the protection and
management of insulated electrical cables or communication
cables - Part 2: Particular requirements for conduits for special
applications
Systèmes de conduits enterrés dans le sol pour la
protection et la gestion des câbles électriques isolés ou des
câbles de communication - Partie 2: Exigences particulières
pour conduits destinés aux applications spéciales
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2017-04-21.
It has been drawn up by CLC/TC 213.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).

A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to

the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 61148 Ref. No. prEN 50626-2:2017 E
---------------------- Page: 3 ----------------------
oSIST prEN 50626-2:2017
prEN 50626-2:2017 (E)
Contents Page

1 European foreword ............................................................................................................... 3

2 Introduction ........................................................................................................................... 4

3 1 Scope .............................................................................................................................. 5

4 2 Normative references ..................................................................................................... 5

5 3 Terms and definitions .................................................................................................... 5

6 4 General requirements ..................................................................................................... 5

7 5 General conditions for tests .......................................................................................... 5

8 6 Classification .................................................................................................................. 6

9 7 Marking and documentation .......................................................................................... 7

10 8 Dimensions ..................................................................................................................... 8

11 9 Construction ................................................................................................................... 8

12 10 Mechanical properties .................................................................................................... 8

13 11 Fire hazard ...................................................................................................................... 9

14 12 External influences ......................................................................................................... 9

15 13 Electromagnetic compatibility ....................................................................................... 9

---------------------- Page: 4 ----------------------
oSIST prEN 50626-2:2017
prEN 50626-2:2017 (E)
17 European foreword

18 This document (prEN 50626-2:2017) has been prepared by CLC/TC 213, "Cable management

19 systems".
20 This document is currently submitted to the Enquiry.
21 The following dates are proposed:
• latest date by which the existence of (doa) dor + 6 months
this document has to be announced
at national level
(dop) dor + 12 months
• latest date by which this document has to be
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
(to be confirmed or
conflicting with this document have to
be withdrawn modified when voting)

22 This document has been prepared under a mandate given to CENELEC by the European Commission

23 and the European Free Trade Association, and supports essential requirements of EU Directive(s).

24 For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this

25 document.

26 A conduit systems buried underground that conforms to this European Standard is deemed to be safe

27 for use.

28 This is a European Standard for cable management products used for electro-technical purposes. It

29 relates to the Council Directives on the approximation of laws, regulations and administrative

30 provisions of the Member States relating to Low Voltage Directive 2014/35/EU through consideration

31 of the essential requirements of this directive.

32 This European Standard is supported by separate standards to which references are made.

---------------------- Page: 5 ----------------------
oSIST prEN 50626-2:2017
prEN 50626-2:2017 (E)
33 Introduction

34 The EN 50626 series specifies requirements for conduit systems buried underground for the

35 protection and management of insulated electrical cables or communication cables. For general

36 applications, requirements of prEN 50626-1 are considered sufficient. For special applications,

37 particular characteristics and tests are required in order to fulfil the expected service time. Therefore,

38 the need to introduce material and lifetime requirements are considered necessary. In most of these

39 special applications, conduits made of thermoplastics materials are used.

40 For developing these particular characteristics and requirements, members of CEN/TC155 were

41 invited to contribute to the drafting of this Part 2.

42 In this prEN 50626-2, specific material and lifetime requirements are covered. Some of these

43 requirements are under consideration within CEN/TC155. This is done without interfering with the

44 approach of CLC/TC213 regarding the prescription of type tests for checking the product

45 characteristics.
---------------------- Page: 6 ----------------------
oSIST prEN 50626-2:2017
prEN 50626-2:2017 (E)
46 1 Scope
47 This clause of part 1 is applicable with the following addition:

48 This European Standard specifies particular requirements and tests for conduit systems buried

49 underground for the protection and management of i
...

SLOVENSKI STANDARD
oSIST prEN 50626-2:2020
01-september-2020
Podzemni kanalski sistem za zaščito in upravljanje izoliranih električnih ali
komunikacijskih kablov - 2. del: Posebne zahteve za kanale za posebno uporabo

Conduit systems buried underground for the protection and management of insulated

electrical cables or communication cables - Part 2: Particular requirements for conduits

for special applications

Erdverlegte Elektroinstallationsrohrsysteme für den Schutz und die Führung isolierter

elektrischer Kabel oder Fernmeldekabel –

Teil 2: Besondere Anforderungen für Elektroinstallationsrohre für Sonderanwendungen

Systèmes de conduits enterrés dans le sol pour la protection et la gestion des câbles

électriques isolés ou des câbles de communication - Partie 2: Exigences particulières

pour conduits destinés aux applications spéciales
Ta slovenski standard je istoveten z: prEN 50626-2
ICS:
29.120.10 Inštalacijske cevi za Conduits for electrical
električne namene purposes
oSIST prEN 50626-2:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50626-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN 50626-2:2020
EUROPEAN STANDARD DRAFT
prEN 50626-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2020
ICS 29.120.10
English Version
Conduit systems buried underground for the protection and
management of insulated electrical cables or communication
cables - Part 2: Polyethylene (PE), Polypropylene (PP) or
Unplasticized poly(vinyl chloride) (PVC-U) conduit systems -
Requirements for solid wall conduits, fittings and the system
used in special applications

Systèmes de conduits enterrés dans le sol pour la Erdverlegte Elektroinstallationsrohrsysteme für den Schutz

protection et la gestion des câbles électriques isolés ou des und die Führung isolierter elektrischer Kabel oder

câbles de communication - Partie 2: Exigences particulières Fernmeldekabel - Teil 2: Besondere Anforderungen für

pour conduits destinés aux applications spéciales Elektroinstallationsrohre für Sonderanwendungen

This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-09-17.
It has been drawn up by CLC/TC 213.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).

A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to

the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 61148 Ref. No. prEN 50626-2 E
---------------------- Page: 3 ----------------------
oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
1 Contents Page

2 European foreword ............................................................................................................................................ 4

3 Introduction ........................................................................................................................................................ 5

4 1 Scope ...................................................................................................................................................... 6

5 2 Normative references ........................................................................................................................... 6

6 3 Terms and definitions ........................................................................................................................... 8

7 4 Symbols and abbreviations ................................................................................................................. 9

8 5 Material ................................................................................................................................................... 9

9 6 General characteristics ...................................................................................................................... 13

10 7 Geometrical characteristics ............................................................................................................... 13

11 8 Mechanical characteristics of conduits ............................................................................................ 19

12 9 Physical characteristics ..................................................................................................................... 21

13 10 Performance requirements ................................................................................................................ 24

14 11 Sealing rings ........................................................................................................................................ 25

15 12 Fire hazard ........................................................................................................................................... 25

16 13 Electromagnetic compatibility ........................................................................................................... 25

17 14 Marking and documentation .............................................................................................................. 25

18 Annex A (normative) Utilization of non-virgin PVC-U material .................................................................. 27

19 A.1 Own reprocessed material from conduits and conduit fittings ..................................................... 27

20 A.2 External reprocessed and recycled materials with an agreed specification ................................ 27

21 Annex B (normative) Utilization of non-virgin PP material ......................................................................... 28

22 B.1 Own reprocessed material from conduits and conduit fittings ..................................................... 28

23 B.2 External reprocessed and recycled materials with an agreed specification ................................ 28

24 Annex C (normative) Utilization of non-virgin PE material ......................................................................... 29

25 C.1 Own reprocessed material from conduits and conduit fittings ..................................................... 29

26 C.2 External reprocessed and recycled materials with an agreed specification ................................ 29

27 Annex ZA (informative) Relationship between this European standard and the safety objectives of

28 Directive 2014/35/EU [2014 OJ L96] aimed to be covered .............................................................. 30

29 Bibliography ..................................................................................................................................................... 31

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oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
31 European foreword

32 This document (prEN 50626-2:2020) has been prepared by CLC/TC 213, “Cable management systems”.

33 This document is currently submitted to the second Enquiry.
34 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

35 This document has been prepared under a mandate given to CENELEC by the European Commission and the

36 European Free Trade Association, and supports essential requirements of EU Directive(s).

37 For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this document.

---------------------- Page: 5 ----------------------
oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
38 Introduction

39 CENELEC TC 213 is responsible for the development of the EN 50626 series, which consists of two separate

40 parts, each covering different products/applications.

41 This document covers requirements and tests for conduit systems buried underground for the protection and

42 management of insulated conductors and/or power cables or communication cables having a specified

43 performance time and which are leak-tight solid wall conduit systems and manufactured in PE, PP and PVC-U.

44 prEN 50626-1 covers requirements and tests for conduit systems buried underground for the protection and

45 management of insulated conductors and/or power cables or communication cables.

46 For on-site storage, use CEN/TR 1046 as a guidance.

47 A conduit system buried underground that conforms to this document is deemed to be safe for use.

48 This is a European Standard for cable management products used for electro-technical purposes. It relates to the

49 Council Directives on the approximation of laws, regulations and administrative provisions of the Member States

50 relating to Low Voltage Directive 2014/35/EU through consideration of the essential requirements of this directive.

51 This document is supported by separate standards to which references are made.

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oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
52 1 Scope

53 This document specifies requirements and tests for PE, PP and PVC-U leak-tight solid wall conduit systems with

54 circular cross section, manufactured individually or as part of an assembly having a specified performance time

55 and buried underground to a maximum depth of 6 m for the protection and management of insulated conductors

56 and/or power cables or communication cables.
57 Applications that require leak-tight solid wall conduit systems are:
58 — installation of cables in conduits by blowing;
59 — installation of cables in conduits by floating;
60 — trenchless installation of conduits.

61 This document is applicable to conduits with or without integral socket and fittings.

62 NOTE 1 Conduits in which cables are installed by blowing or floating can also be installed by conventional methods.

63 NOTE 2 Installation of cables can also be done by pulling and pushing.

64 NOTE 3 Within a thermoplastic conduit system, fittings made of other materials can be used but they are not specified in

65 this document.

66 NOTE 4 It is the responsibility of the purchaser or specifier to take into account any relevant national regulations and

67 installation practices or codes when selecting the products to be installed, based on the characteristics specified in this

68 document.
69 NOTE 5 Microducts are covered by the relevant part of the EN 60794 series.
70 2 Normative references

71 The following documents are referred to in the text in such a way that some or all of their content constitutes

72 requirements of this document. For dated references, only the edition cited applies. For undated references, the

73 latest edition of the referenced document (including any amendments) applies.

74 EN 681-1:1996, Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage

75 applications - Part 1: Vulcanized rubber

76 EN 681-2:2000, Elastomeric Seals - Materials requirements for pipe joint seals used in water and drainage

77 applications - Part 2: Thermoplastic elastomers

78 EN 1905:1998, Plastics piping systems - Unplasticized poly(vinyl chloride) (PVC-U) pipes, fittings and material -

79 Method for assessment of the PVC content based on total chlorine content

80 EN 12099:1997, Plastics piping systems - Polyethylene piping materials and components - Determination of

81 volatile content

82 prEN 50626-1:2020, Conduit systems buried underground for the protection and management of insulated

83 electrical cables or communication cables - Part 1: General requirements

84 CEN/TR 1046:2013, Thermoplastics piping and ducting systems - Systems outside building structures for the

85 conveyance of water or sewage - Practices for underground installation

A impacted by EN 681-1:1996/A1:1998, EN 681-1:1996/A2:2002 and EN 681-1:1996/A3:2005.

As impacted by EN 681-2:2000/A1:2002 and EN 681-2:2000/A2:2005.
---------------------- Page: 7 ----------------------
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prEN 50626-2:2020 (E)
86 EN ISO 472:2001, Plastics - Vocabulary (ISO 472:1999)

87 EN ISO 580:2005, Plastics piping and ducting systems - Injection-moulded thermoplastics fittings - Methods for

88 visually assessing the effects of heating (ISO 580:2005)

89 EN ISO 1043-1:2011, Plastics - Symbols and abbreviated terms - Part 1: Basic polymers and their special

90 characteristics (ISO 1043-1:2001)

91 EN ISO 1133-1:2011, Plastics - Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR)

92 of thermoplastics - Part 1: Standard method (ISO 1133-1:2011)

93 EN ISO 1167-1:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination

94 of the resistance to internal pressure - Part 1: General method (ISO 1167-1:2006)

95 EN ISO 1167-2:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination

96 of the resistance to internal pressure - Part 2: Preparation of pipe test pieces (ISO 1167-2:2006)

97 EN ISO 1183-1:2019, Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion

98 method, liquid pycnometer method and titration method (ISO 1183-1:2019)

99 EN ISO 1183-2:2019, Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density

100 gradient column method (ISO 1183-2:2019)

101 EN ISO 2505:2005, Thermoplastics pipes - Longitudinal reversion - Test method and parameters

102 (ISO 2505:2005)

103 EN ISO 2507-1:2017, Thermoplastics pipes and fittings - Vicat softening temperature - Part 1: General test

104 method (ISO 2507-1:1995)

105 EN ISO 3126:2005, Plastics piping systems - Plastics components - Determination of dimensions

106 (ISO 3126:2005)

107 EN ISO 3451-1:2019, Plastics - Determination of ash - Part 1: General methods (ISO 3451-1:2019)

108 EN ISO 3451-5:2002, Plastics - Determination of ash - Part 5: Poly(vinyl chloride) (ISO 3451-5:2002)

109 EN ISO 6259-1:2015, Thermoplastics pipes - Determination of tensile properties - Part 1: General test method

110 (ISO 6259-1:2015)

111 EN ISO 9852:2017, Unplasticized poly(vinyl chloride) (PVC-U) pipes - Dichloromethane resistance at specified

112 temperature (DCMT) - Test method (ISO 9852:2007)

113 EN ISO 9969:2016, Thermoplastics pipes - Determination of ring stiffness (ISO 9969:2016)

114 EN ISO 11357-6:2018, Plastics - Differential scanning calorimetry (DSC) - Part 6: Determination of oxidation

115 induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) (ISO 11357-6:2018)

116 EN ISO 13259:2018, Thermoplastics piping systems for underground non-pressure applications - Test method

117 for leaktightness of elastomeric sealing ring type joints (ISO 13259:2018)

118 ISO 3127:1994, Thermoplastics pipes - Determination of resistance to external blows - Round-the-clock method

As impacted by EN ISO 1043-1:2011/A1:2016.
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prEN 50626-2:2020 (E)

119 ISO 6259-2:1997, Thermoplastics pipes - Determination of tensile properties - Part 2: Pipes made of unplasticized

120 poly(vinyl chloride) (PVC-U), chlorinated poly (vinyl chloride) (PVC-C) and high-impact poly (vinyl chloride) (PVC-

121 HI)

122 ISO 18373-1:2007, Rigid PVC pipes - Differential scanning calorimetry (DSC) method - Part 1: Measurement of

123 the processing temperature
124 3 Terms and definitions

125 For the purposes of this document, the terms and definitions given in EN ISO 472:2001 and EN ISO 1043-1:2011

126 and the following apply.

127 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

128 — ISO Online browsing platform: available at https://www.iso.org/obp
129 — IEC Electropedia: available at http://www.electropedia.org/
130 3.1
131 performance time
132 predicted service time of the installed conduit

133 Note 1 to entry: The service time considers continuous external loads and occasional internal loads. Both types of loads

134 are to be considered when the predicted service time is declared
135 3.2
136 solid wall conduit

137 conduit with smooth external surface and where the internal surface may be smooth or with internal longitudinal

138 grooves
139 3.3
140 non-virgin material
141 own or external reprocessed material or recycled material
142 3.4
143 own reprocessed material

144 material prepared from rejected unused conduits and conduit fittings, including trimmings from the production,

145 that will be reprocessed in a manufacturer’s plant after having been previously processed by the same

146 manufacturer by a process such as moulding or extrusion and for which the complete formulation is known

147 3.5
148 external reprocessed material

149 material prepared from unused thermoplastics products regardless of where those products were manufactured

150 3.6
151 recycled material

152 material prepared from used thermoplastic products which have been cleaned and crushed or ground

153 3.7
154 agreed specification

155 specification of the relevant material characteristics agreed between the supplier of the non-virgin material and

156 the conduits and/or conduit fittings manufacturer
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oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
157 4 Symbols and abbreviations
158 4.1 Symbols
A minimum length of engagement
min
d mean outside diameter
d nominal outside diameter
d mean inside diameter of a socket
e minimum wall thickness
min
e wall thickness of a socket
e wall thickness in the groove area
L length of spigot
1min
159 4.2 Abbreviations
DN nominal size
DN/OD nominal size, outside diameter related
OIT oxidation induction time
PE polyethylene
PP polypropylene
PVC-U unplasticized poly(vinyl chloride)
SDR standard dimension ratio
SN nominal ring stiffness
TIR true impact rate
160 5 Material
161 5.1 Unplasticized poly(vinyl chloride) (PVC-U)

162 The material shall be a mixture of PVC-U to which are added additives, and if applicable non-virgin material, that

163 shall allow the final product to comply with the requirements of this document.

164 When tested in accordance with the test methods as specified in Table 1 using the indicated parameters, the

165 formulation shall have characteristics conforming to the requirements given in Table 1, for the chosen

166 performance time 25, 50 or 100 years.

167 NOTE If the 100 year test is passed, the requirements for 25 and 50 year are deemed to be fulfilled.

168 Table 1 — Formulation characteristics of PVC-U conduits
Characteristic Requirements Test parameters Test method
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Orientation Free
for performance EN ISO 1167-2:2006
time minimum 25
Number of test pieces 3
year
Test temperature 60 °C
Circumferential stress 2,0 MPa
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oSIST prEN 50626-2:2020
prEN 50626-2:2020 (E)
Characteristic Requirements Test parameters Test method
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 165 h
Vicat (VST) for ≥ 76 °C EN ISO 2507-1:2017
performance time
minimum 25 year
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Orientation Free
for performance EN ISO 1167-2:2006
time minimum 50
Number of test pieces 3
year
Test temperature 60 °C
Circumferential stress 8,0 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 165 h
Vicat (VST) for ≥ 79 °C EN ISO 2507-1:2017
performance time
minimum 50 year
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Orientation Free
for performance EN ISO 1167-2:2006
time minimum 100
Number of test pieces 3
year
Test temperature 60 °C
Circumferential stress 10 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 1000 h
Vicat (VST) for ≥ 79 °C EN ISO 2507-1:2017
performance time
minimum 100 year
169 5.2 Polypropylene (PP)

170 The material shall be a mixture of PP to which are added additives, and if applicable non-virgin material, that shall

171 allow the final product to comply with the requirements of this document.

172 When tested in accordance with the test methods as specified in Table 2 using the indicated parameters, the

173 compound shall have characteristics conforming to the requirements given in Table 2, for the chosen performance

174 time 25, 50 or 100 years.

175 NOTE If the 100 year test is passed, the requirements for 25 and 50 year are deemed to be fulfilled.

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176 Table 2 — Compound characteristics of PP conduits
Characteristic Requirements Test parameters Test method
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Test temperature 80 °C
performance time EN ISO 1167-2:2006
minimum 25 year
Orientation Free
Number of test pieces 3
Circumferential stress 1,0 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 140 h
Melt mass-flow ≤ 2,5 g/10 min Temperature 230 °C EN ISO 1133-1:2011
rate performance Loading mass 2,16 kg
time minimum 25
year
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Test temperature 80 °C
performance time EN ISO 1167-2:2006
minimum 50 year
Orientation Free
Number of test pieces 3
Circumferential stress 3,7 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 165 h
Melt mass-flow ≤ 1,5 g/10 min Temperature 230 °C EN ISO 1133-1:2011
rate performance Loading mass 2,16 kg
time minimum 50
year
Resistance to No failure during End caps Type A or Type B EN ISO 1167-1:2006
internal pressure the test period and
Test temperature 95 °C
performance time EN ISO 1167-2:2006
Orientation Free
minimum 100 year
Number of test pieces 3
Circumferential stress 2,5 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test
Water-in-water
Test period
1000 h
Melt mass-flow ≤ 1,5 g/10 min Temperature 230 °C EN ISO 1133-1:2011
rate performance Loading mass 2,16 kg
time minimum 100
year
Thermal stability, ≥ 8 min Temperature 200 °C EN ISO 11357-6:2018
OIT
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177 5.3 Polyethylene (PE)

178 The material shall be a mixture of PE to which are added additives, and if applicable non-virgin material, that shall

179 allow the final product to comply with the requirements of this document.

180 When tested in accordance with the test method as specified in Table 3 using the indicated parameters, the

181 compound shall have characteristics conforming to the requirements given in Table 3, for the chosen performance

182 time 25, 50 or 100 years.

183 NOTE If the 100 year test is passed, the requirements for 25 and 50 year are deemed to be fulfilled.

184 Table 3 — Compound characteristics of PE conduits
Characteristic Requirements Test parameters Test method

Resistance to internal pressure No failure during End caps Type A or Type B EN ISO 1167-1:2006

performance time minimum 25 the test period and
year EN ISO 1167-2:2006
Test temperature 80 °C
Orientation Free
Number of test pieces 3
Circumferential stress 1,2 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 165 h

Melt mass-flow rate performance ≤ 2,6 g/10 min Temperature 190 °C EN ISO 1133-1:2011

time minimum 25 year Loading mass 5 kg

Resistance to internal pressure No failure during End caps Type A or Type B EN ISO 1167-1:2006

performance time minimum 50 the test period and
year EN ISO 1167-2:2006
Test temperature 80 °C
Orientation Free
Number of test pieces 3
Circumferential stress 4,0 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 165 h

Melt mass-flow rate performance ≤ 1,7 g/10 min Temperature 190 °C EN ISO 1133-1:2011

time minimum 50 year Loading mass 5 kg
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Characteristic Requirements Test parameters Test method

Resistance to internal pressure No failure during End caps Type A or Type B EN ISO 1167-1:2006

performance time minimum 100 the test period and
year EN ISO 1167-2:2006
Test temperature 80 °C
Orientation Free
Number of test pieces 3
Circumferential stress 4,0 MPa
Conditioning period Shall conform to
EN ISO 1167-1:2006
Type of test Water-in-water
Test period 1000 h

Melt mass-flow rate performance ≤ 1,4 g/10 min Temperature 190 °C EN ISO 1133-1:2011

time minimum 100 year Loading mass 5 kg
Thermal stability, OIT ≥ 20 min Temperature 200 °C EN ISO 11357-6
185 5.4 Utilization of non-virgin materials

186 For the utilization of non-virgin PVC-U materials, additional conditions and requirements are given in Annex A.

187 For the utilization of non-virgin PP materials, additional conditions and requirements are given in Annex B.

188 For the utilization of non-virgin PE materials, additional conditions and requirements are given in Annex C.

189 6 General characteristics
190 6.1 Appearance
191 When viewed without magnification, the following requirements apply:

192 The internal, unless otherwise specified, and the external surfaces of conduits and fittings shall be smooth, clean

193 and free from inadequate edges, grooving, blistering, impurities and pores and any other surface irregularities

194 likely to prevent their conformity to this document.

195 The conduit end shall be cleanly cut and the ends of conduits and fittings shall be square to their axis.

196 6.2 Colour
197 The colour should be agreed with the customer.
198 NOTE National regulations could apply.
199 The colour shall be constant along the length of the conduit or fitting.

200 The conduits and fittings shall be coloured through the wall except that in thin external layers or stripes the use of

201 different colours are accepted for the purpose for colour coding.
202 7 Geometrical characteristics
203 7.1 General
204 Dimensions shall be measured in accordance with EN ISO 3126:2005.

205 In some countries, DN/ID is preferred instead of DN/OD. However, this deviation of the geometrical characteristics

206 shall be stated in the national foreword.
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207 7.2 Dimensions of conduits
208 7.2.1 Outside diameters
209 The mean outside diameter, d , shall conform to Table 4.
210 Table 4 — Mean outside diameters
Nominal Nominal Mean outside diameter
size
outside
diameter
d d d PVC d PP d PE
DN/OD
n em,min em,max. em,max. em,max.
16 16 16,0 16,2 16,3 16,3
20 20 20,0 20,2 20,3 20,3
25 25 25,0 25,2 25,3 25,3
32 32 32,0 32,2 32,3 32,3
40 40 40,0 40,2 40,3 40,4
50 50 50,0 50,2 50,3 50,5
63 63 63,0 63,2 63,3 63,6
75 75 75,0 75,3 75,4 75,7
90 90 90,0 90,3 90,4 90,9
110 110 110,0 110,3 110,4 111,0
125 125 125,0 125,3 125,4 126,2
140 140 140,0 140,4 140,5 141,3
160 160 160,0 160,4 160,5 161,5
200 200 200,0 200,5 200,6 201,8
250 250 250,0 250,5 250,8 252,3
NOTE Dimensions in millimetres

211 Other nominal sizes than given in Table 4 are permitted. They should preferably be selected from the Renard

212 series R 40, ISO 3, or traditional national dimensions.
213 7.2.2 Wall thicknesses
214 The wall thickness, e , shall conform to Table 5, and the toleran
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