oSIST prEN ISO 22734-1:2024

Hydrogen generators using water electrolysis - Part 1: General requirements, test protocols and safety requirements (ISO/DIS 22734-1:2024)

Wasserstofferzeuger auf Grundlage der Elektrolyse von Wasser - Industrielle, gewerbliche und häusliche Anwendungen - Teil 1: Allgemeine Anforderungen, Prüfberichte und Sicherheitsanforderungen (ISO/DIS 22734-1:2024)

Dieses Dokument legt die Anforderungen an den Aufbau, die Sicherheit, die Eignungsprüfung und die Dokumentation von modularen oder werkseitig angepassten Wasserstoffgas-Erzeugungsgeräten oder -Erzeugungssystemen, im Folgenden Wasserstofferzeuger genannt, fest, die elektrochemische Reaktionen für die Elektrolyse von Wasser nutzen, um Wasserstoff zu erzeugen.
Dieses Dokument gilt für Wasserstofferzeuger, die die folgenden Arten eines Ionentransportmediums nutzen:
- wässrige alkalische (basische) Elektrolyte wie Kaliumhydroxid- oder Natriumhydroxidlösungen;
- wässrige saure Elektrolyte wie verdünnte Schwefelsäure;
- Festpolymermaterial mit angehängten sauren funktionellen Gruppen wie Säure-Protonenaustauschmembran (PEM, en: proton exchange membrane);
- Festpolymermaterial mit angehängten basischen funktionellen Gruppen wie Anionenaustauschmembran (AEM, en: anion exchange membrane).
Dieses Dokument gilt für Wasserstofferzeuger, die für industrielle, gewerbliche und häusliche Anwendungen sowohl im Innenraum als auch im Freien vorgesehen sind.
Dieses Dokument enthält Hinweise zu Wasserstofferzeugern, die auch Sauerstoff für industrielle und gewerb
liche Anwendungen bereitstellen; hierzu können jedoch zusätzliche U􀇆berlegungen notwendig sein.
Folgendes wird aus dem Anwendungsbereich dieses Dokuments ausgeschlossen:
- Wasserstofferzeuger für häusliche Anwendungen, die als Produkt auch Sauerstoff bereitstellen;
- Wasserstofferzeuger, die auch zur Elektrizitätserzeugung genutzt werden können, wie z.B. reversible Brennstoffzellen (siehe IEC62282-8-101, IEC62282-8-102 und IEC62282-8-201);
- Wasserstofferzeuger, die Festoxid-Elektrolyte nutzen (siehe IEC62282-8-101 und IEC62282-8-201).

Générateurs d'hydrogène utilisant le procédé de l'électrolyse de l'eau - Applications industrielles, commerciales et résidentielles - Partie 1: Titre manque (ISO/DIS 22734-1:2024)

Generatorji vodika z elektrolizo vode - 1. del: Splošne zahteve, preskusne metode in varnostne zahteve (ISO/DIS 22734-1:2024)

General Information

• Status: Not Published
• Public Enquiry End Date: 02-Jul-2024
• ICS: 71.100.20 - Gases for industrial application
• ICS: 71.120.99 - Other equipment for the chemical industry
• Technical Committee: DPL - Gas supply
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 06-May-2024
• Due Date: 23-Sep-2024
• Completion Date: 21-Jun-2024
• Ref Project: prEN ISO 22734-1 - Hydrogen generators using water electrolysis - Part 1: General requirements, test protocols and safety requirements (ISO/DIS 22734-1:2024)

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2024
Generatorji vodika z elektrolizo vode - 1. del: Splošne zahteve, preskusne metode
in varnostne zahteve (ISO/DIS 22734-1:2024)
Hydrogen generators using water electrolysis - Part 1: General requirements, test
protocols and safety requirements (ISO/DIS 22734-1:2024)
Wasserstofferzeuger auf Grundlage der Elektrolyse von Wasser - Industrielle,
gewerbliche und häusliche Anwendungen - Teil 1: Allgemeine Anforderungen,
Prüfberichte und Sicherheitsanforderungen (ISO/DIS 22734-1:2024)
Générateurs d'hydrogène utilisant le procédé de l'électrolyse de l'eau - Applications
industrielles, commerciales et résidentielles - Partie 1: Titre manque (ISO/DIS 22734-
1:2024)
Ta slovenski standard je istoveten z: prEN ISO 22734-1
ICS:
71.100.20 Industrijski plini Gases for industrial
application
71.120.99 Druga oprema za kemijsko Other equipment for the
industrijo chemical industry
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 22734-1
ISO/TC 197
Hydrogen generators using water
Secretariat: SCC
electrolysis —
Voting begins on:
Part 1: 2024-05-01
General requirements, test
Voting terminates on:
2024-07-24
protocols and safety requirements
ICS: 71.120.99; 71.100.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 22734-1:2024(en)
DRAFT
ISO/DIS 22734-1:2024(en)
International
Standard
ISO/DIS 22734-1
ISO/TC 197
Hydrogen generators using water
Secretariat: SCC
electrolysis —
Voting begins on:
Part 1:
General requirements, test
Voting terminates on:
protocols and safety requirements
ICS: 71.120.99; 71.100.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 22734-1:2024(en)
ii
ISO/DIS 22734-1:2024(en)
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 4
4 Requirements . 9
4.1 Operating conditions .9
4.1.1 Energy input specification .9
4.1.2 Feed water specifications .9
4.1.3 Ambient environment .10
4.1.4 Protective gas .10
4.1.5 Delivery of hydrogen.10
4.1.6 Delivery of oxygen . .11
4.1.7 Hydrogen venting .11
4.1.8 Oxygen venting . 12
4.2 Risk management . 12
4.2.1 General requirements . 12
4.2.2 Fire and explosion hazard protection requirements . 15
4.2.3 Pressure safety requirements .18
4.2.4 Temperature safety requirements .18
4.2.5 Spillage, overflow, and drain .18
4.2.6 Protection of service and maintenance personnel .18
4.3 Chemical reaction equipment .19
4.3.1 General .19
4.3.2 Electrochemical Cells and Stacks .19
4.3.3 Oxygen removal catalytic reactors . 20
4.4 Mechanical equipment . 20
4.4.1 General requirements . 20
4.4.2 General materials requirements .21
4.4.3 Pressure-bearing equipment . 22
4.4.4 Pressure relief devices or pressure safety systems . .24
4.4.5 Fans and ventilators .24
4.4.6 Heat transfer system .24
4.5 Electrical equipment and wiring .24
4.5.1 General requirements .24
4.5.2 Grounding and bonding . . . 25
4.5.3 Touch current and protective conductor current . 25
4.5.4 Overcurrent protection . 25
4.5.5 Electric heaters . 25
4.5.6 Cord anchorage and conductor pull-out . 26
4.5.7 Terminals for external conductors . 26
4.6 Control systems . 26
4.6.1 General . 26
4.6.2 Safety control circuit . 26
4.6.3 Control function in the event of failure .27
4.6.4 Programmable electronic equipment .27
4.6.5 Start .27
4.6.6 Emergency-stop .27
4.6.7 Stop . 28
4.6.8 Self-correctable conditions . 28
4.6.9 Interconnected installations . 28
4.6.10 Safety components . 28
4.6.11 Remote control systems . 29
4.6.12 Alarms . 29

iii
ISO/DIS 22734-1:2024(en)
4.6.13 Protective gas quantity .
...