CEN/TS 1046:2021

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST-TP CEN/TR 1046:2014
Cevni in kanalski sistemi iz plastomernih materialov - Sistemi zunaj stavb za
transport vode in odpadne vode - Postopki za vgradnjo pod zemljo
Thermoplastics piping and ducting systems - Outside the building structures for gravity
and pressurised systems - Trench installation
Thermoplastische Kunststoff-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 matières thermoplastiques - Système
d'adduction d'eau ou d'assainissement à l'extérieur de la structure des bâtiments -
Pratiques pour la pose en enterrée
Ta slovenski standard je istoveten z: CEN/TS 1046:2021
ICS:
23.040.03 Cevovodi za zunanje sisteme Pipeline and its parts for
transporta vode in njihovi deli external water conveyance
systems
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.

CEN/TS 1046
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
May 2021
TECHNISCHE SPEZIFIKATION
ICS 23.040.45; 93.030; 23.040.05; 23.040.20 Supersedes CEN/TR 1046:2013
English Version
Thermoplastics piping and ducting systems - Outside the
building structures for gravity and pressurised systems -
Trench installation
Systèmes de canalisations et de gaines en matières Thermoplastische Kunststoff-Rohrleitungs- und
thermoplastiques - Système d'adduction d'eau ou Schutzrohr-Systeme - Systeme außerhalb der
d'assainissement à l'extérieur de la structure des Gebäudestruktur zum Transport von Wasser oder
bâtiments - Pratiques pour la pose en enterrée Abwasser - Verfahren zur unterirdischen Verlegung
This Technical Specification (CEN/TS) was approved by CEN on 12 April 2021 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, 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 promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 1046:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols . 6
5 Abbreviations . 7
6 Delivery, handling, transportation and storage on site . 7
6.1 General. 7
6.2 Handling and transportation . 7
6.3 Storage of pipes . 8
6.4 Storage of fittings and other products. 8
7 Installation . 9
7.1 General. 9
7.2 Trench construction . 9
7.2.1 General. 9
7.2.2 Trench width . 9
7.2.3 Trench depth . 11
7.2.4 Trench bottom and bedding . 11
7.2.5 Jointing preparation . 16
7.2.6 Installation, procedures and control . 16
7.2.7 Backfilling . 20
8 Plastic manholes, inspection chambers and gullies . 24
9 Side connections . 24
10 Bending under ambient temperatures . 25
11 Waste treatment . 25
12 Inspection and testing . 25
12.1 Inspection after installation . 25
12.2 Tightness and pressure testing . 25
12.3 Permissible deformation . 26
Annex A (informative) Classification of soils . 27
Bibliography . 30

European foreword
This document (CEN/TS 1046:2021) 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 shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 1046:2013.
This document is changed fundamentally by taking out design topics and topics already dealt with in
EN 1610 and EN 805. The lay-out was changed and the pressure systems are described more in detail.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
This document 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. This document 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 1 Guidelines for installation of pipelines made out of thermosetting materials can be found in the ISO/TS
10465 series [23].
This document is based on the results from research with full-scale trials undertaken by the
thermoplastics pipes industry and expressed in CEN/TS 15223.
This document is a guidance document only. It provides a set of general guidelines which gives best
practices for underground installation of thermoplastics piping and ducting systems outside building
structures.
This document 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 the installation.
This document does not cover matters relating to renovation of existing pipeline systems using lining
techniques, or replacement of existing pipeline systems using trenchless techniques.
NOTE 2 Guidelines for installation of lining techniques can be found in the EN 12889 series
This document is intended to be used by authorities, design engineers, installation contractors and
manufacturers.
In this document, 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 document gives the recommended practise for underground open trench installation and
commissioning of thermoplastics piping systems to be used for the conveyance of water under pressure
(in addition to EN 805) and for the discharge of wastewater under gravity (in addition to EN 1610).
In the field of non-pressure underground drainage and sewerage this is reflected in the marking of
products by application code “U” and “UD”:
— outside the building structure (U);
— both buried in ground within the building structure (application area code “D”) and outside the
building (application area code “UD”).
This document covers also installation and/or connections to valves, manholes, inspection chambers,
gullies and other ancillary components in piping systems.
NOTE 1 Code of practise for pipelines for gas supply is covered by EN 12007-series [21].
NOTE 2 Recommended practices for installation of plastic piping systems for soil and waste discharge within
the building structure is covered by CEN/TR 13801 [12].
NOTE 3 Practices for underground installation of rainwater infiltration and storage attenuation systems are
covered by CEN/TR 17179 [13].
NOTE 4 It is assumed that additional recommendations and/or requirements are detailed in the individual
product standards.
NOTE 5 If non-plastic components are part of the plastic system there will be applicable manufacturer's
instructions.
Requirements and instructions concerning commissioning of systems can be found in EN 805 and
EN 1610 and the relevant national and/or local regulations. This document gives specific additional
recommendations for commissioning relevant for plastic piping systems.
Attention is drawn to any relevant local and/or national regulations (e.g. health, safety and hygienic
requirements).
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 805, Water supply - Requirements for systems and components outside buildings
EN 1610:2015, Construction and testing of drains and sewers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply in addition to EN 1610.
3.1
deformation
change in the true shape of the cross-section
3.2
deflection
change of direction
3.3
trench
excavation of the soil for the underground embed
...