prEN ISO 8846

Small craft - Electrical devices - Protection against ignition of surrounding flammable gases (ISO/DIS 8846:2024)

Describes test methods and requirements for the design of electrical devices to be used on small craft so that they may be operated in an explosive atmosphere without igniting surrounding flammable gases.

Kleine Wasserfahrzeuge - Elektrische Geräte - Zündschutz gegenüber entflammbaren Gasen (ISO/DIS 8846:2024)

Dieses Dokument legt Prüfverfahren und Anforderungen für die Auslegung von elektrischen Geräten zur Verwendung auf kleinen Wasserfahrzeugen fest, so dass diese in einer Umgebungsatmosphäre mit entflammbarem Gas unter normalen Betriebsbedingungen betrieben werden können, ohne die Umgebungsatmosphäre mit entflammbarem Gas zu entzünden.
Dieses Dokument behandelt nicht Zündschutzverfahren für
   Geräte oder Komponenten, die in Wasserstoff- und Luftgemischen betrieben werden dürfen;
   Geräte mit Fehlfunktionsproblemen;
   Mechanismen zur Zündung durch externe Quellen, etwa statische Elektrizität, Blitze oder andere Faktoren, die nicht mit dem zu prüfenden Gerät in Beziehung stehen.

Petits navires - Appareils électriques - Protection contre l’inflammation des gaz inflammables environnants (ISO/DIS 8846:2024)

La présente Norme internationale prescrit les méthodes d'essai et fixe les prescriptions de conception relatives aux équipements électriques installés sur des navires de plaisance et devant être utilisés en atmosphère explosive sans risquer de provoquer l'explosion des gaz inflammables environnants. Elle n'est pas applicable aux systèmes antidéflagrants ou aux appareillages électriques protégés contre l'explosion tels que définis dans la CEI 79-0. [1] La présente Norme internationale ne traite pas des procédures de protection contre la détérioration des produits ou des éléments fonctionnant dans des mélanges d'hydrogène et d'air. Elle ne traite pas non plus des mécanismes d'inflammation par sources extérieures du type électricité statique, foudre ou autres facteurs non liés à l'appareillage essayé.

Mala plovila - Električne naprave - Varovanje pred vžigom gorljivih plinov v okolici (ISO/DIS 8846:2024)

General Information

• Status: Not Published
• Publication Date: 14-Sep-2025
• ICS: 47.080 - Small craft
• Technical Committee: CEN/TC 464 - Small Craft
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 09-May-2024
• Completion Date: 09-May-2024
• Directive: 2013/53/EU - Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC
• Mandate: M/542 - [C(2015)8736] Standardisation Request to the European Committee for Standardisation and the European Committee for Electro-technical Standardisation as regards recreational craft and personal watercraft in support of Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC.
• Ref Project: oSIST prEN ISO 8846:2024 - Small craft - Electrical devices - Protection against ignition of surrounding flammable gases (ISO/DIS 8846:2024)

Relations

• Revises: EN ISO 8846:2017 - Small craft - Electrical devices - Protection against ignition of surrounding flammable gases (ISO 8846:1990)
• Effective Date: 21-Jun-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2024
Mala plovila - Električne naprave - Varovanje pred vžigom gorljivih plinov v okolici
(ISO/DIS 8846:2024)
Small craft - Electrical devices - Protection against ignition of surrounding flammable
gases (ISO/DIS 8846:2024)
Kleine Wasserfahrzeuge - Elektrische Geräte - Zündschutz gegenüber entflammbaren
Gasen (ISO/DIS 8846:2024)
Petits navires - Appareils électriques - Protection contre l’inflammation des gaz
inflammables environnants (ISO/DIS 8846:2024)
Ta slovenski standard je istoveten z: prEN ISO 8846
ICS:
13.220.20 Požarna zaščita Fire protection
47.020.60 Električna oprema ladij in Electrical equipment of ships
konstrukcij na morju and of marine structures
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 8846
ISO/TC 188
Small craft — Electrical devices
Secretariat: SIS
— Protection against ignition of
Voting begins on:
surrounding flammable gases
2024-02-15
Navires de plaisance — Équipements électriques — Protection
Voting terminates on:
contre l'inflammation des gaz inflammables environnants
2024-05-09
ICS: 47.080
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,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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.
Reference number
ISO/DIS 8846:2024(en)
DRAFT
ISO/DIS 8846:2024(en)
International
Standard
ISO/DIS 8846
ISO/TC 188
Small craft — Electrical devices
Secretariat: SIS
— Protection against ignition of
Voting begins on:
surrounding flammable gases
Navires de plaisance — Équipements électriques — Protection
Voting terminates on:
contre l'inflammation des gaz inflammables environnants
ICS: 47.080
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 8846:2023(en)
ii
ISO/DIS 8846:2023(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test requirements . 2
5 External surface temperature test . 2
6 Test method — Sealed devices . 2
6.1 General .2
6.2 Equipment .3
6.3 Test procedure .3
7 Test method — Non-sealed devices . 4
7.1 General .4
7.2 Equipment .4
7.3 Electrical device preparation .4
7.4 Test procedure .7
7.5 Additional requirements for non-sealed electrical devices .8
7.5.1 Cranking motors .8
7.5.2 Distributors . . .8
7.5.3 Alternators .8
8 Marking . . 8
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered. 9
Bibliography .10

iii
ISO/DIS 8846:2023(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO [had/had not] received notice of
(a) patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 188, Small craft.
This second edition cancels and replaces the first edition (ISO 8846:1990), which has been technically
revised.
The main changes are as follows:
— scope was updated for clarity
— definitions have been updated in Clause 3;
— throughout the text, requirements have been updated to meet the state of the art;
— former Clause 6.4.3 intrinsically safe devices has been removed;
— Clause 7.5.3 for Alternators has been added.
— Clause 8 for marking was updated
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
DRAFT International Standard ISO/DIS 8846:2023(en)
Small craft — Electrical devices — Protection against ignition
of surrounding flammable gases
1 Scope
This document specifies test methods and requirements for the design of electrical devices to be used on
small craft so that they can be operated in a surrounding flammable gas atmosphere under normal operating
conditions, without igniting the surrounding flammable gas atmosphere.
This document does not address ignition protection procedures for
— devices or components that may operate in hydrogen and air mixtures;
— devices with dysfunctional issues;
— mechanisms of ignition from external sources, such as static electricity, lightning or other factors not
related to the equipment under test.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
flammable hydrocarbon mixture
mixture of propane and air (per cent by volume) between the Lower Flammable Limit (LFL)and Upper
Flammable Limit (UFL) that will explode if ignited by any means. Tests using propane and air are considered
to cover marine fuel and air mixtures between the LEL and UEL.
3.2
ignition-protected device
device that complies with the requirements of one of the test requirements given in Clause 4
3.3
ignition source
— (1) Any electrical contacts, commutator or brush assembly, or collector ring and brushes that can produce
in normal operating conditions electrical arcs of ignition-capable energy
— (2) Any surface of an electrical device that can operate in normal operating conditions at a temperature
sufficient to ignite a flammable mixture

ISO/DIS 8846:2023(en)
3.4
normal operating conditions
any operating conditions of the device, including the maximum achievable overload up to 400 % of the rated
current (circuit breakers, switches and the like) and a stalled rotor condition for any motor with the circuit
protected by an overcurrent protective device specified by the product manufacturer
3.5
craft
small craft recreational boat, and other watercraft using similar equipment, of up to 24 m length of hull (L )
H
Note 1 to entry: The measurement methodology for length of hull is defined in ISO 8666.
[SOURCE: ISO 8666:2020, 3.15, modified – Note 1 to entry has been added.]
4 Test requirements
4.1 The external surface temperature test shall be carried out ac
...