District heating and district cooling pipes - Bonded single and twin pipe systems for directly buried hot and cold water networks - Part 1: Qualification testing of fitter

This document specifies the methods of examining the knowledge and skill set of the fitter required to carry out on-site joint casing connections on thermally insulated single and twin pipe systems for directly buried hot and cold water networks according to .The application of these specified methods specifications ensures that the examination is carried out according to a standardised examining procedure.This document covers the following processes:
- preparatory works for joint casing assembly;
- assembling and testing the elements for surveillance systems;
For special surveillance systems it  can  be  important  to have additional training.preparing work for joint casing system installation;
- assembling sealable joint casing system;
- verifying joint tightness (leakage testing);
- thermally insulating the joint casing ( PUR  foaming or half-shells);
- sealing fill & vent openings (weldable or sealable plugs);
- assessing overall installation quality of the completed joint connection (non-destructive).

Fernwärme- und Fernkälterohre - Ein- und Doppelrohr-Verbundsysteme für direkt erdverlegte Fernwärme- und Fernkältenetze - Teil 1: Prüfung von Muffenmonteuren

Dieses Dokument legt Verfahren zur Prüfung der für die baustellenseitige Herstellung von Mantelrohrverbindungen von wärmegedämmten Einzel- und Doppelrohr-Verbundsystemen für direkt erdverlegte Fernwärme- und Fernkältenetze nach EN 13941 2 [14] erforderlichen Kenntnisse und Fähigkeiten von Monteuren fest.
Durch die Anwendung dieser festgelegten Verfahren wird sichergestellt, dass die Prüfung nach einem genormten Prüfverfahren erfolgt.
Dieses Dokument behandelt die folgenden Prozesse:
-   Vorarbeiten zur Muffenmontage;
-   Montage und Prüfung der Elemente von Überwachungssystemen;
ANMERKUNG   Für spezielle Überwachungssysteme können zusätzliche Schulungen erforderlich sein.
-   Vorarbeiten zur Installation von Mantelrohrverbindungssystemen;
-   Montage von abdichtbaren Mantelrohrverbindungssystemen;
-   Überprüfung der Dichtheit von Verbindungen (Dichtheitsprüfung);
-   Wärmedämmung der Verbindungsmuffe (PUR-Verschäumung oder Halbschalen);
-   Befüll- und Entlüftungsöffnungen der Dichtung (schweißbare oder abdichtbare Stopfen);
-   (zerstörungsfreie) Beurteilung der allgemeinen Qualität der Installation der fertiggestellten Verbindung.

Tuyaux de chauffage et de refroidissement urbains - Systèmes bloqués de monotubes et bitubes pour les réseaux d'eau chaude et froide enterrés directement - Partie 1 : Epreuve de qualification d’installateur

Le présent document spécifie les méthodes d’examen des connaissances et compétences exigées d’un installateur pour réaliser des raccordements de protection de l’assemblage sur site sur des systèmes monotubes ou bitubes isolés thermiquement pour les réseaux d'eau chaude et froide enterrés directement conformément à l’EN 13941‑2.
L’application de ces méthodes spécifiées garantit que l’examen est réalisé selon un mode opératoire d’examen normalisé.
Le présent document couvre les processus suivants :
-   travaux préparatoires pour la protection de l’assemblage ;
-   assemblage et essai des éléments destinés aux systèmes de surveillance ;
NOTE   Une formation complémentaire peut être nécessaire pour les systèmes de surveillance spéciaux.
-   travaux préparatoires pour l’installation du système de protection de l’assemblage ;
-   assemblage du système de protection de l’assemblage scellable ;
-   contrôle d’étanchéité des joints (essais d’étanchéité) ;
-   isolation thermique de la protection de l’assemblage (injection de mousse PUR ou demi- gaines) ;
-   étanchéité des trous de remplissage et de mise à l’évent (bouchons soudables ou scellables) ;
-   évaluation globale de la qualité d’installation du raccord de protection de l’assemblage
(non destructive).

Cevi za daljinsko ogrevanje in daljinsko hlajenje - Sistemi s spojenimi eno- in dvocevnimi sistemi za neposredno vkopana omrežja za toplo in hladno vodo - 1. del: Preskus usposobljenosti monterja

General Information

Status
Not Published
Publication Date
22-Nov-2026
Current Stage
4020 - Submission to enquiry - Enquiry
Start Date
09-Oct-2025
Due Date
07-Jul-2025
Completion Date
09-Oct-2025
Draft
prEN 18213-1:2025 - BARVE
English language
30 pages
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Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2025
Cevi za daljinsko ogrevanje in daljinsko hlajenje - Sistemi s spojenimi eno- in
dvocevnimi sistemi za neposredno vkopana omrežja za toplo in hladno vodo - 1.
del: Preskus usposobljenosti monterja
District heating and district cooling pipes - Bonded single and twin pipe systems for
directly buried hot and cold water networks - Part 1: Qualification testing of fitter
Fernwärme- und Fernkälterohre - Ein- und Doppelrohr-Verbundsysteme für direkt
erdverlegte Fernwärme- und Fernkältenetze - Teil 1: Prüfung von Muffenmonteuren
Tuyaux de chauffage et de refroidissement urbains - Systèmes bloqués de monotubes et
bitubes pour les réseaux d'eau chaude et froide enterrés directement - Partie 1 :
Epreuve de qualification d’installateur
Ta slovenski standard je istoveten z: prEN 18213-1
ICS:
23.040.07 Cevovodi za daljinsko Pipeline and its parts for
ogrevanje in njihovi deli district heat
23.040.99 Drugi sestavni deli za Other pipeline components
cevovode
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 23.040.07; 23.040.99
English Version
District heating and district cooling pipes - Bonded single
and twin pipe systems for directly buried hot and cold
water networks - Part 1: Qualification testing of fitter
Tuyaux de chauffage et de refroidissement urbains - Fernwärme- und Fernkälterohre - Ein- und
Systèmes bloqués de monotubes et bitubes pour les Doppelrohr-Verbundsysteme für direkt erdverlegte
réseaux d'eau chaude et froide enterrés directement - Fernwärme- und Fernkältenetze - Teil 1: Prüfung von
Partie 1 : Epreuve de qualification d'installateur Muffenmonteuren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 107.
If this draft becomes a European Standard, CEN 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 CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

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, Türkiye and
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 18213-1:2025 E
worldwide for CEN national Members.

Page
Contents
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Qualification of Test Institute, Supervisor . 6
4.1 Test Institute . 6
4.2 Supervisor . 7
5 Admission to qualification . 8
6 Testing knowledge and skills. 8
6.1 General . 8
6.2 Theoretical test . 8
6.2.1 General . 8
6.2.2 Questions . 8
6.3 Practical test . 9
6.3.1 General . 9
6.3.2 Equipment . 10
6.3.3 Test piece preparation and assembling . 10
7 Examination of skills and knowledge . 11
8 Test piece assembly . 11
8.1 Difficulties and corrections whilst fitting the test piece . 11
8.2 Inspection requirements . 11
9 Evaluation and acceptance criteria of test piece and test specimens . 11
9.1 General . 11
9.2 Evaluation of test piece and test specimen . 11
9.2.1 General . 11
9.2.2 Measuring elements . 12
9.2.3 Visual inspection of processed sealed joint casing system . 12
9.2.4 Adhesive wetting test of processed shrink sleeve . 12
9.2.5 Welded PE plugs . 13
9.2.6 Sealed plugs. 14
10 Test result and qualification test certificate . 15
10.1 Overall assessment . 15
10.2 Theoretical Exam . 15
10.3 Practical Exam . 15
10.4 Qualification certificate and identity card . 15
10.4.1 Qualification certificate. 15
10.4.2 Qualification identity card . 16
11 Failed exam . 16
12 Period of validity. 17
13 Qualification test certificate renewal . 17
Annex A (normative) Qualification of Fitters. 18
A.1 A.1 Knowledge and skills . 18
A.2 Background for training and testing . 18
A.3 Subjects for training and testing . 18
A.3.1 General . 18
A.3.2 Polyethylene (PE) casing . 19
A.3.3 Surveillance systems . 19
A.3.4 PUR-foam system . 19
A.3.5 Joint casing systems . 20
A.3.6 Joint installation . 20
Annex B (normative) Checklist of sealed joint casing systems . 24
Annex C (informative) Template fitter's qualification test certificate . 27
Annex D (informative) Template fitter's qualification tests identity card . 28
D.1 Front of the identity card (example) . 28
D.2 Back of the identity card (example) . 28
Bibliography . 29

European foreword
This document (prEN:18213-1:2025) has been prepared by Technical Committee CEN/TC 107 “District
heating and cooling systems”, the secretariat of which is held by DS.
This document is currently submitted to the CEN Enquiry.

Introduction
The installation quality of joint casing application and the installation of measuring elements for
surveillance systems is crucial for the service life and efficiency of district heating and cooling networks,
built with factory-made thermally insulated pipe, fitting and valve assemblies. Damage caused by
improper installation leads to moisture ingress into the thermal insulation and to corrosion of the steel
service pipe.
This document deals with the installation of sealable joint casing systems according to EN 489-1[1].
The fitter’s ability to follow verbal or written instructions and to testify his skills are important factors
in ensuring the integrity of the joint casing connection.
This document serves as the basis for general recognition by test and certification bodies of the fitter's
competency and qualification.
Fitters can also take an examination according to prEN 18213-2[2] to demonstrate their ability to install
weldable joint casing systems.
This document is an integral part of the standards for bonded pipe systems for district heating and
cooling.
Other standards from CEN/TC 107 covering this subject:EN 253[3], EN 448[4], EN 489-1[1], EN 13941-
1[5], EN 13941-2[6], EN 14419[7], EN 15698-1[8], EN 15698-2[9], EN 17248[10], EN 17415-1[11], EN
17415-2[12], EN 17415-3[13]and prEN 18213-2[2] are listed in the bibliography.
1 Scope
This document specifies the methods of examining the knowledge and skill set of the fitter required to
carry out on-site joint casing connections on thermally insulated single and twin pipe systems for
directly buried hot and cold water networks according to EN 13941-2[14].
The
...

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