ISO 12176-2:2025
(Main)Plastics pipes and fittings — Equipment for fusion jointing polyethylene systems — Part 2: Electrofusion
Plastics pipes and fittings — Equipment for fusion jointing polyethylene systems — Part 2: Electrofusion
This document specifies performance requirements for electrofusion control unit (ECU) for use with polyethylene (PE) electrofusion fittings conforming to ISO 4437-3,[ REF Reference_ref_6 \r \h 1 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0036000000 ]ISO 4427-3[ REF Reference_ref_7 \r \h 2 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0037000000 ] and ISO 15494.[ REF Reference_ref_8 \r \h 3 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0038000000 ] NOTE 1 Electrofusion fittings conforming to other documents, e.g. EN 1555-3[ REF Reference_ref_9 \r \h 4 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000100000005200650066006500720065006E00630065005F007200650066005F0039000000 ] and EN 12201-3,[ REF Reference_ref_10 \r \h 5 08D0C9EA79F9BACE118C8200AA004BA90B0200000008000000110000005200650066006500720065006E00630065005F007200650066005F00310030000000 ] can also be within the scope of this document. The system designed to manage the transfer of data collected during the fusion process is out of the scope of this document. NOTE 2 Data format and retrieval system are specified in ISO 12176-5. NOTE 3 Parameters for the electrofusion cycle are defined in ISO 13950 and ISO 12176-5. Data for traceability purposes are given in ISO 12176-3, ISO 12176-4 and ISO 12176-5. Electrical safety is out of the scope of this document. NOTE 4 The manufacturer of ECU is informed that different safety regulations are in force in different countries or regional area, e.g.: U.S.A., Europe, etc. ECU designed for only one brand of fittings is out of the scope of this document. Excluding any of the requirements specified in this document is not acceptable when an organization claims conformity to this document.
Tubes et raccords en matières plastiques — Appareillage pour l'assemblage par soudage des systèmes en polyéthylène — Partie 2: Électrosoudage
L'ISO 12176-2:2008 spécifie les exigences de performance des machines à souder par électrosoudage destinées à être utilisées avec les raccords électrosoudables en polyéthylène (PE) pour la distribution de combustibles gazeux ou pour le transport d'eau pour la consommation humaine, y compris l'eau brute avant traitement, et pour le transport d'eau pour usage général ou d'autres fluides. Les machines à souder sont réparties en trois classes de tension d'entrée: SVLV [très basse tension de sécurité (jusqu'à 50 V)], LV [basse tension (50 V à 250 V)] et HV [tension supérieure (250 V à 400 V)]. L'ISO 12176-2:2008 est applicable aux machines à souder par électrosoudage conçues pour servir à la réalisation des assemblages entre tubes et raccords en polyéthylène (PE), conformément aux Normes internationales relatives aux systèmes de distribution de gaz ou de transport d'eau, avec une température normale de service de la machine à souder comprise entre - 10 °C et + 40 °C. Si des températures hors de cette plage sont prévues, le fabricant et le client auront à s'accorder sur des limites de fonctionnement adaptées. L'ISO 12176-2:2008 est applicable aux machines à souder à régulation d'intensité ou de tension, utilisables pour des systèmes de raccords, fondés sur la technologie standard de chauffage par fil résistif.
General Information
Relations
Standards Content (Sample)
International
Standard
ISO 12176-2
Third edition
Plastics pipes and fittings —
2025-06
Equipment for fusion jointing
polyethylene systems —
Part 2:
Electrofusion
Tubes et raccords en matières plastiques — Appareillage pour
l'assemblage par soudage des systèmes en polyéthylène —
Partie 2: Électrosoudage
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 2
3.1 Terms and definitions .2
3.2 Symbols and abbreviated terms .3
4 General . 4
5 ECU design. 4
5.1 General .4
5.2 Electrical safety .4
5.3 Cables .5
5.3.1 General .5
5.3.2 Input cable .5
5.3.3 Output cable.5
5.4 Socket contacts to electrofusion fitting .5
5.5 Operator controls .5
5.6 Displays .5
5.7 Temperature sensing element for fusion energy compensation .5
5.8 Input data decoder .6
5.9 Data processing.6
5.10 Data retrieval and transmission .6
5.10.1 General .6
5.10.2 Memory .6
5.10.3 Interface .6
5.10.4 Data protection during a fusion process .6
5.11 Transformers .7
6 Duty cycle. 7
7 Operating procedures . 7
7.1 Supply checks .7
7.2 Fusion data input .7
7.2.1 Manual input .7
7.2.2 Automatic input .7
7.3 Data validation .8
7.3.1 General .8
7.3.2 Data validation by the ECU .8
7.3.3 Data validation by the operator .8
7.4 Fusion cycle .8
7.4.1 General .8
7.4.2 Incidents during fusion cycle .8
7.4.3 Optional programs and equipment .8
8 Operating requirements . 9
8.1 General .9
8.2 Power supply .9
8.3 Measurement of the resistance of the heating accessory.9
8.4 Electrical continuity check .9
8.5 Energy output control .9
8.5.1 General .9
8.5.2 Voltage control .9
8.5.3 Current control .10
8.5.4 Accuracy of the fusion cycle duration .10
8.6 Fusion cycle safety functions .10
8.6.1 General .10
iii
8.6.2 Obligatory fusion cycle safety functions.10
8.7 Endurance .11
9 Mechanical performance .11
9.1 Shock test resistance .11
9.2 Vibration test .11
10 Specific information .12
11 Marking . .12
Annex A (normative) ECU-specific information .13
Annex B (informative) Duty cycle . 14
Annex C (normative) Shock resistance test .15
Annex D (normative) Vibration test . 16
Annex E (informative) List of IEC documents of interest (non-exhaustive) .18
Bibliography .20
iv
Foreword
ISO (the International Organization for Standardization
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.