CEN/TR 1046:2013

SLOVENSKI STANDARD
01-februar-2014
1DGRPHãþD
SIST ENV 1046:2002
SIST ENV 1401-3:2002
SIST-TS CEN/TS 14758-3:2006
SIST-TS CEN/TS 1852-3:2003
SIST-TS CEN/TS 1852-3:2003/A1:2005
Cevni in kanalski sistemi iz plastomernih materialov - Sistemi zunaj stavb za
transport vode ali kanalizacije - Postopki za vgradnjo pod zemljo
Thermoplastics piping and ducting systems - Systems outside building structures for the
conveyance of water or sewage - Practices for underground installation
Thermoplastische Rohrleitungs- und Schutzrohr-Systeme - Systeme außerhalb der
Gebäudestruktur zum Transport von Wasser oder Abwasser - Verfahren zur
unterirdischen Verlegung
Systèmes de canalisations et de gaines en plastique - Système d'adduction d'eau ou
d'assainissement à l'extérieur de la structure des bâtiments - Pratiques pour la pose en
aérien et en enterré
Ta slovenski standard je istoveten z: CEN/TR 1046:2013
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
93.025 Zunanji sistemi za prevajanje External water conveyance
vode systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 1046
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
December 2013
ICS 23.040.01 Supersedes CEN/TS 14758-3:2006, CEN/TS 1852-
3:2003, ENV 1046:2001, ENV 1401-3:2001
English Version
Thermoplastics piping and ducting systems - Systems outside
building structures for the conveyance of water or sewage -
Practices for underground installation
Systèmes de canalisations et de gaines en matières Thermoplastische Rohrleitungs- und Schutzrohr-Systeme -
thermoplastiques - Systèmes d'adduction d'eau ou Systeme außerhalb der Gebäudestruktur zum Transport
d'assainissement à l'extérieur de la structure des bâtiments von Wasser oder Abwasser - Verfahren zur unterirdischen
- Pratiques pour la pose en enterré Verlegung

This Technical Report was approved by CEN on 9 March 2013. It has been drawn up by the Technical Committee CEN/TC 155.

CEN 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 1046:2013 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
4 Symbols and abbreviations .7
5 Transport, handling and storage at depots and sites .7
5.1 General .7
5.2 Transportation of pipes .8
5.3 Handling .9
5.4 Storage . 10
6 Installation . 10
6.1 Pipes in trenches . 10
6.2 Special installation techniques . 30
7 Methods of assembly (jointing) . 30
7.1 General . 30
7.2 Joints using an elastomeric seal . 31
7.3 Mechanical compression joints . 32
7.4 Other joints and jointing methods . 33
8 Bends . 33
8.1 Cold bending . 33
8.2 Hot bending . 33
9 Inspection and testing . 33
9.1 Inspection . 33
9.2 Testing . 34
Annex A (normative) Classification of soils . 35
Annex B (informative) Behaviour of buried flexible pipes . 37
Annex C (normative) Joint and jointing examples . 39
C.1 General . 39
C.2 Joints capable of resisting end thrust . 39
C.3 Mechanical threaded joints . 45
Bibliography . 47

Foreword
This document (CEN/TR 1046:2013) has been prepared by Technical Committee CEN/TC 155 “Plastics
Piping Systems and Ducting Systems”, the secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes ENV 1046:2001, ENV 1401-3:2001, CEN/TS 1852-3:2003 and
CEN/TS 14758-3:2006.
This Technical Report is based on the results of the work being undertaken in ISO/TC 138 “Plastics pipes,
fittings and valves for the transport of fluids”, which is a Technical Committee of the International Organization
for Standardization (ISO) (see Bibliography), modified as necessary to be applicable to piping systems of any
thermoplastics materials and any relevant application.
Introduction
This Technical Report contains guidance for installation procedures for thermoplastics piping systems and
their components intended to be used below ground for pressure and non-pressure applications outside
building structures. It is intended to be used in conjunction with general standards for installation
recommendations, for example those issued by CEN/TC 164 “Water supply” and CEN/TC 165 “Waste water
engineering” as stated in EN 805 and EN 1610 respectively.
NOTE Guidelines for installation of pipelines made out of thermosetting materials can be found in the ISO 10465
series [11, 12, 13].
This Technical Report is based on the results from research with full-scale trials undertaken by the
thermoplastics pipes industry and expressed in CEN/TS 15223.
This Technical Report is a guidance document only. It provides a set of general guidelines which gives best
practices for installation of thermoplastics piping and ducting systems outside building structures underground.
This Technical Report includes recommendations for the pipe surround and backfilling procedures but not
road base and road sub-base details. Attention is drawn to any national regulations which may cover these or
other aspects of installation.
This Technical Report does not cover matters relating to renovation of existing pipeline systems using lining
techniques, or replacement of existing pipeline systems using trenchless techniques.
This Technical Report is intended to be used by authorities, design engineers, installation contractors and
manufacturers.
In this Technical Report, much of the guidance is expressed as requirements, e.g. by use of “shall” or by
instructions in the imperative. It is strongly recommended that these be followed whenever applicable.
Other guidance is presented for consideration as a matter of judgement in each case, e.g. by use of “should”.
1 Scope
This Technical Report is applicable to the installation of thermoplastics piping systems to be used for the
conveyance of water or sewage under gravity and pressure conditions underground. It is intended to be used
for pipes of nominal size up to and including DN 1600.
Wherever the term “pipe” is used in this Technical Report, it also serves to cover any “fittings”, “ancillary”
products and “components” if not otherwise specified.
NOTE 1 This document does not apply to pipelines for gas supply (see EN 12007–2, Gas infrastructure - Pipelines for
maximum operating pressure up to and including 16 bar - Part 2: Specific functional requirements for polyethylene (MOP
up to and including 10 bar).
NOTE 2 It is assumed that additional recommendations and/or requirements are detailed in the individual materials
voluntary product standards. Instances where this is expected to apply include those indicated in this Technical Report as
follows:
a) any special transportation requirements (see 5.2);
b) maximum storage height (see 5.2 and 5.4);
c) maximum storage period in direct sunlight (see 5.4);
d) any climatic conditions requiring special storage (see 5.4);
e) limiting initial and/or long-term deflections (see 6.1.1 and 6.1.2);
f) information on mole ploughing and boring (see and 6.2), if applicable;
g) selection of appropriate jointing system (see Clause 7);
h) recommended radii of curvature for cold bending (see 8.1);
i) permitted rates of loss of water under test (see 9.2.1);
j) if applicable the relationship between SDR and stiffness.
Requirements and instructions concerning commissioning of systems can be found in EN 805 and EN 1610
and the relevant national and/or local regulations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 476, General requirements for components used in drains and sewers
EN 681 (all parts), Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage
applications
EN 805, Water supply - Requirements for systems and components outside buildings
EN 1610, Construction and testing of drains and sewers
CEN/TS 15223, Plastics piping systems - Validated design parameters of buried thermoplastics piping
systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
deflection
deviation of the circle cross section of the pipe (in percent)
3.2
average deflection
measured average deflection over the inspected length of the pipeline (in percent)
3.3
trench
excavation of the soil for the underground embedment of the pipeline
Note 1 to entry: See Figure 1 for an illustration of the meaning and limits of the terms used in this Technical Report.

Key
b width of the cross section
b horizontal clearance between the pipe or fitting and the trench sidewall or an
S
adjacent pipe or fitting
de external diameter of a pipe
1 depth of cover above the pipe
2 height of embedment above the pipe 100 mm to 300 mm
3 ground surface
4 native soil
5 embedment
6 main backfil
7 pipe zone
8 upper bedding (according EN 1610, also known as haunch zone, of which the
height is 1/3 of the pipe diameter)
9 trench bottom
10 lower bedding (according EN 1610)
Figure 1 — Trench cross-section showing terminology
Key
1 slope
...