EN ISO 8846:2017
(Main)Small craft - Electrical devices - Protection against ignition of surrounding flammable gases (ISO 8846:1990)
Small craft - Electrical devices - Protection against ignition of surrounding flammable gases (ISO 8846:1990)
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 8846:1990)
Navires de plaisance - Équipements électriques - Protection contre l'inflammation des gaz inflammables environnants (ISO 8846:1990)
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 8846:1990)
Opisuje preskusne metode in zahteve za načrtovanje električnih naprav, ki se uporabljajo na majhnih plovilih, tako da se lahko uporabljajo v eksplozivnem ozračju brez vžiga okoliških vnetljivih plinov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2017
1DGRPHãþD
SIST EN 28846:2000
SIST EN 28846:2000/A1:2001
0DODSORYLOD(OHNWULþQHQDSUDYH9DURYDQMHSUHGYåLJRPJRUOMLYLKSOLQRYYRNROLFL
,62
Small craft - Electrical devices - Protection against ignition of surrounding flammable
gases (ISO 8846:1990)
Kleine Wasserfahrzeuge - Elektrische Geräte - Zündschutz gegenüber entflammbaren
Gasen (ISO 8846:1990)
Navires de plaisance - Équipements électriques - Protection contre l'inflammation des
gaz inflammables environnants (ISO 8846:1990)
Ta slovenski standard je istoveten z: EN ISO 8846:2017
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8846
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN 28846:1993
English Version
Small craft - Electrical devices - Protection against ignition
of surrounding flammable gases (ISO 8846:1990)
Navires de plaisance - Équipements électriques - Kleine Wasserfahrzeuge - Elektrische Geräte -
Protection contre l'inflammation des gaz inflammables Zündschutz gegenüber entflammbaren Gasen (ISO
environnants (ISO 8846:1990) 8846:1990)
This European Standard was approved by CEN on 23 July 2017.
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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8846:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU . 4
European foreword
The text of ISO 8846:1990 has been prepared by Technical Committee ISO/TC 188 “Small craft” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 8846:2017.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2018, and conflicting national standards shall
be withdrawn at the latest by February 2018.
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 EN 28846:1993.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
Endorsement notice
The text of ISO 8846:1990 has been approved by CEN as EN ISO 8846:2017 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU
This European standard has been prepared under a mandate given to CEN by the European Commission
to provide one means of conforming to Essential Requirements of the New Approach Directive
2013/53/EU.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one member state, compliance with the normative clauses
of this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption
of conformity with the relevant Essential Requirements of that Directive and associated EFTA
regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2013/53/EU
Clauses/subclauses of this European Essential requirements Qualifying
Standard (ERs) of EU Directive remarks/Notes
2013/53/EU
All clauses I.A.5.1.1 – Inboard engine In respect of electrical
devices that may be
mounted on an inboard
engine or in an engine
enclosure in order to
minimise the risk of fire.
This Standard does not deal
with accessibility of these
devices in order to enable
frequent inspection and/or
servicing.
This Standard does not deal
with insulating materials
inside the engine
compartment.
All Clauses I.A.5.2.2(a) - Fuel tanks In respect of protection
from electrical devices as
sources of ignition which
are located in fuel tank
compartments.
All Clauses 1.A.5.3 – Electrical system This Standard does not
cover ignition protection for
electrical devices that may
operate in hydrogen and
oxygen mixtures produced
by vented batteries gases
escaping into the
surrounding atmosphere.
All Clauses Annex II, Components of
watercraft
(1) Ignition protected
equipment for inboard and
stern drive petrol engines
and petrol tank spaces
WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard
First edition
1990-l 2-01
Electrical devices - Protection
Small craft -
against ignition of surrounding flammable gases
&wires de plaisance - k!Cquipements 6lectriques --- Protection contre
I’inflamma tion des gaz inf7ammables environnan ts
--
Reference number
IS0 8846: 1990(E)
-__I
IS0 8846:1990(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been establishetl has the right to be
represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the
work. IS0 collaborates closely with the InternatL3nal Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an lnter-
national Standard req:lires approval by at least 75 % of the member
bodies casting a vote.
International Standard IS0 8846 was prepared by Technical Committee
ISO/TC 188, Small craft.
Annex A of this International Standard is for information only.
0 IS0 1990
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without
permission in writing from the publisher.
international Organization for Standardization
Case Postale 56 @ Cl-l-1241 Geneve 20 l Switzerland
Printed in Switzerland
ii
--
INTERNATIONAL §TANDARD IS0 8846:1990(E)
Small craft - Electrical Protection against ignition
of surrounding flammable gases
2.4 normal operating conditions: Any operating
1 Scope
conditions of the device, including the maximum
achievable overload up to 400 % of the rated current
This International Standard describes test methods
(circuit breakers, switches and the like) and a stalled
and requirements for the design of electrical devices
rotor condition for any motor with the circuit pro-
to be used on small craft so that they may be oper-
tected by an overcurrent protective device specified
ated in an explosive atmosphere without igniting
by the product manufacturer.
surrounding flammable gases. It does not require
explosion-proof or explosion-protected electrical
apparatus as defined in IEC 79-O. [II
3 Test programme
This International Standard does not cover ignition
protection procedures for products or components
3.1 The external surface temperature test shall be
that may operate in hydrogen and air mixtures. Nor
carried out according to clause 4.
does it cover mechanisms of ignition from external
sources, such as static electricity, lightning or other
3.2 Electrical devices which can generate sparks
factors not related to the apparatus under test.
or arcs under operation (switches, relays, gener-
ators, fuses, distributors, cranking motors, etc.) shall
be tested according to clause 5 if they can be con-
2 Definitions
sidered sealed and according to clause 6 if they are
non-sealed.
For the purposes of this International Standard, the
following definitions apply.
3.3 Electrical devices showing an increase of the
external surface temperature of more than 100 “C
2.1 flammable hydrocarbon mixture: Mixture of
above ambient under operation shall be tested ac-
propane and air (per cent by volume) between the
cording to clause 4. Electrical devices not rated for
Lower Explosive Limit (LEL) and Upper Explosive
continuous operation and wired with momentarily
Limit (UEL) that will explode if ignited by any means.
operated switches, such as engine-cranking motors,
Tests using propane and air are considered to cover
propulsion unit trim motors and other intermittently
marine fuel and air mixtures between the LEL and
operated devices, are exempt from this test.
UEL.
2.2 ignition-protected device: Device that complies
4 External surface temperature test
with the requirements of one of the test programmes
given in clause 3.
4.1 The electrical device shall be placed in a
closed, thermally insulated air-circulating oven hav-
2.3 ignition source
ing an initial temperature of 60°C If: 2 OC. Suitable
heating shall be provided in addition to that gener-
(1) Any electrical contacts, commutator or brush
ated by the component in order to keep the tem-
assembly, or collector ring and brushes that may
perature in the oven constant at 60°C + 2 OC.
-
produce electrical arcs of ignition-capable energy.
4.2 The test voltage supply shall be adjusted within
(2) Resistor or other component or surface that
may operate at a temperature sufficient to ignite a the range of 80 % to 120 % of the nominal system
flammable mixture. voltage giving the greatest temperature increase.
iS0 8846:1990(E)
5.2.2 Observe the electrical device under test
4.3 The electrical device shall be operated con-
carefully throughout the test duration for a leak as
tinuously for a minimum of 7 h in the mode in which
it draws its maximum current. evidenced by the generation of a bubble or stream
of bubbles.
4.4 The maximum allowable surface temperature
is 200 OC, measured at any point on the electrical
5.2.3 If bubbles are observed coming out of the
device exterior.
electrical portion of the device, the electrical device
shall not be considered sealed and shall be tested
under clause 6.
5 Test method - Sealed devices
Electrical devices which under operation can pro-
52.4 If no bubbles are observed, remove the elec-
duce sparks or arcs shall be tested according to 5.1
trical device from the water chamber and dry its
and 5.2 if they are considered so tight that no sur-
exterior.
rounding gases can penetrate into them.
5.2.5 Dismantle the electrical device for internal
5.1 Equipment
inspection.
A water chamber, as shown in figure 1, is needed.
5.2.6 If no water is found inside the electrical de-
vice, it shall be accepted as a sealed ignition-
5.2 Test procedure
protected device. If water is found, it shall be tested
according to clause 6.
52.1 Submerge the electrical device to be tested
in a water chamber at ambient temperature, chang-
ing its attitude if necessary so that all possible
6 Test method - Non-sealed devices
sources of leaks are at the top and are 340 mm to
370 mm below the waler surface. Submerged time
Testing according to 6.1 to 6.4 shall be carried out
is 15 min for each attitude change.
on electrical devices which under operation can
produce sparks or arcs and are considered to be
open so that surrounding gases can penetrate into
them. Electrical devices which after testing accord-
ing to clause 5 have been found to be non-sealed
shall also
...
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