SIST EN ISO 13297:2015

SLOVENSKI STANDARD
SIST EN ISO 13297:2015
01-marec-2015
1DGRPHãþD
SIST EN ISO 13297:2013
0DODSORYLOD(OHNWULþQLVLVWHPL,QãWDODFLMH]DL]PHQLþQLWRN,62
Small craft - Electrical systems - Alternating current installations (ISO 13297:2014)
Kleine Wasserfahrzeuge - Elektrische Systeme - Wechselstromanlagen (ISO
13297:2014)
Petits navires - Systèmes électriques - Installations à courant alternatif (ISO 13297:2014)
Ta slovenski standard je istoveten z: EN ISO 13297:2014
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
SIST EN ISO 13297:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13297:2015

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SIST EN ISO 13297:2015

EUROPEAN STANDARD
EN ISO 13297

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2014
ICS 47.080 Supersedes EN ISO 13297:2012
English Version
Small craft - Electrical systems - Alternating current installations
(ISO 13297:2014)
Petits navires - Systèmes électriques - Installations à Kleine Wasserfahrzeuge - Elektrische Systeme -
courant alternatif (ISO 13297:2014) Wechselstromanlagen (ISO 13297:2014)
This European Standard was approved by CEN on 13 September 2014.

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, 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
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13297:2014 E
worldwide for CEN national Members.

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SIST EN ISO 13297:2015
EN ISO 13297:2014 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 94/25/EC as amended by Directive 2003/44/EC .4
2

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SIST EN ISO 13297:2015
EN ISO 13297:2014 (E)
Foreword
This document (EN ISO 13297:2014) has been prepared by Technical Committee ISO/TC 188 “Small craft”.
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 June 2015, and conflicting national standards shall be withdrawn at
the latest by June 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 13297:2012.
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.
For relationship with EU Directive, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13297:2014 has been approved by CEN as EN ISO 13297:2014 without any modification.

3

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SIST EN ISO 13297:2015
EN ISO 13297:2014 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 94/25/EC as amended by Directive
2003/44/EC
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 94/25/EC as
amended by Directive 2003/44/EC.
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 94/25/EC as amended by
Directive 2003/44/EC
Clauses/sub-clauses Corresponding annexes/ Comments
Paragraphs of Directive
Of this European Standard
94/25/EC as amended
2003/44/EC
All clauses Annex IA, Clause 5.3 Electrical The scope of this standard is
systems limited to the design,
construction and installation of
low-voltage alternating current
electrical systems which operate
at nominal voltages of less than
250 V single phase
Clause 11.12 Annex IA, Clause 5.6.1 Fire In respect of avoiding wiring
protection above hot areas of machines
Annex B Annex IA, Clause 2.5 Owner’s
manual
WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling within the
scope of this standard.

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SIST EN ISO 13297:2015
INTERNATIONAL ISO
STANDARD 13297
Fourth edition
2014-12-01
Small craft — Electrical systems —
Alternating current installations
Petits navires — Systèmes électriques — Installations à courant
alternatif
Reference number
ISO 13297:2014(E)
©
ISO 2014

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SIST EN ISO 13297:2015
ISO 13297:2014(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

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SIST EN ISO 13297:2015
ISO 13297:2014(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 4
5 Marking . 6
6 Ignition sources . 7
7 Overcurrent protection . 7
7.1 General . 7
7.2 Supply circuits . 8
7.3 Branch circuits . 8
8 Ground-fault protection/earth-leakage protection . 8
9 Appliances and equipment . 9
10 System wiring. 9
11 Conductor and cable installation .10
12 Panel boards (switchboards) .11
13 Socket outlets
.12
14 Power source options .12
15 Inverters and inverter/chargers .13
Annex A (normative) Conductor requirements .15
Annex B (normative) Instructions to be included with owner’s manual.17
Annex C (informative) Recommended system tests .18
Annex D (informative) Typical a.c. system diagrams .19
Bibliography .27
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

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).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 188, Small craft.
This fourth edition cancels and replaces the third edition (ISO 13297:2012), of which it constitutes a
minor revision. The main changes are:
— deletion of Annex E;
— replacement of Annex D;
— correction of references in 14.1 indent e) by replacing 4.8 with 4.7 and in 14.3 by replacing 4.6 with 4.7;
— update of reference to ISO 10133.
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SIST EN ISO 13297:2015
INTERNATIONAL STANDARD ISO 13297:2014(E)
Small craft — Electrical systems — Alternating current
installations
IMPORTANT — The colours represented in the electronic file of this document can be neither
viewed on screen nor printed as true representations. Although the copies of this document
printed by ISO have been produced to correspond (with an acceptable tolerance as judged by the
naked eye) to the requirements of ISO 3864-4, it is not intended that these printed copies be used
for colour matching. Instead, consult ISO 3864-4, which provides colorimetric and photometric
properties together with, as a guideline, references from colour order systems.
1 Scope
This International Standard specifies the requirements for the design, construction and installation of
low-voltage alternating current electrical systems which operate at nominal voltages of less than 250 V
single phase on small craft of hull length up to 24 m.
Additional information to be included in the owner’s manual is listed in Annex B.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 7010, Graphical symbols — Safety colours and safety signs — Registered safety signs
ISO 8846, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases
ISO 10133, Small craft — Electrical systems — Extra-low-voltage d.c. installations
ISO 10240, Small craft — Owner’s manual
IEC 60079-0, Explosive atmospheres — Part 0: General requirements
IEC 60309-2, Plugs, socket-outlets and couplers for industrial purposes — Part 2: Dimensional
interchangeability requirements for pin and contact-tube accessories
IEC 60446, Basic and safety principles for man-machine interface marking and identification — Identification
of conductors by colours or numerals
IEC 60529:1989, Degrees of protection provided by enclosures (IP code)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
craft’s earth
protective ground
connection, provided for safety purposes, that is established by a conducting connection with the
common ground/earth (potential of the earth’s surface)
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

3.2
equipotential bonding conductor
normally non-current-carrying conductor used to put various exposed conductive parts of direct current
electrical devices and extraneous conductive parts at a substantially equal potential
3.3
residual current device
RCD
electro-mechanical switching device or association of devices designed to make, carry and break
currents under normal service conditions and to cause the opening of contacts when the residual current
attains a given value under specified conditions
Note 1 to entry: RCDs serve to reduce the risk of injury to people from electrical shock hazard, and damage to
equipment from leakage of stray currents to earth or to other circuits.
3.4
polarization transformer
transformer which automatically orientates the neutral and active (phase) conductors in the system in
the same polarity orientation as the polarized system of the craft
3.5
isolation transformer
transformer with protective separation between the input and output windings and the protective conductor
3.6
neutral conductor
conductor connected to the neutral point of a system and capable of contributing to the transmission of
electrical energy
3.7
protective conductor
protective grounding conductor
conductor, not normally carrying current, used for some measure of protection against electric shock,
for electrically connecting any of the following parts of electrical equipment to the craft’s ground (earth)
and to the shore a.c. grounding conductor through the shore power cable:
a) exposed conductive parts of electrical equipment;
b) extraneous conductive parts;
c) the main grounding (earthing) terminal;
d) earth electrode(s);
e) the earth point of a source, or an artificial neutral
3.8
live conductor
conductor or conductive part intended to be energized in normal use, including a neutral conductor
3.9
active (phase) conductor
any conductor that is maintained at a difference of potential from the neutral or protective conductor
Note 1 to entry: In a system that does not include a neutral or protective conductor, all conductors are to be
considered active conductors.
3.10
ignition-protected equipment
equipment designed and constructed to give protection against ignition of surrounding flammable gases
Note 1 to entry: See ISO 8846.
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

3.11
overcurrent protection device
device designed to interrupt the circuit when the current flow exceeds a predetermined value for a
predetermined time
EXAMPLE A fuse or circuit breaker.
3.12
panel board
switchboard
assembly of devices for the purpose of controlling and/or distributing electrical power
Note 1 to entry: Examples of devices include circuit breakers, fuses, switches, instruments and indicators.
3.13
polarized system
system in which the live conductors are connected in the same relation to all terminals on devices or
receptacles (socket outlets) in a circuit
3.14
shore power appliance inlet
fitting designed for mounting on a craft, of a shrouded male type, to connect to the female connector
on the craft end of the shore power cable in order to make the electrical connection for transmission of
electrical energy
3.15
trip-free circuit breaker
mechanical switching device capable of making, carrying and breaking currents under normal circuit
conditions and also making, carrying for a specified time and breaking currents under specified
abnormal circuit conditions such as those of overload or short circuit, and which is designed so that the
resetting means cannot be manually held in place to override the current-interrupting mechanism
3.16
accessible
capable of being reached for inspection, removal or maintenance without removing the craft’s
permanent structure
3.17
readily accessible
capable of being reached quickly and safely for effective use without the use of tools
3.18
sheath
uniform and continuous protective tubular covering of metallic or non-metallic material around one or
more insulated conductors
Note 1 to entry: Examples of appropriate materials include moulded rubber, moulded plastic, woven sleeving or
flexible tubing.
3.19
conduit
part of a closed wiring system of circular or non-circular cross-section for insulated conductors and/or
cables in electrical installations, allowing them to be drawn in and/or replaced
3.20
cable trunking
system of closed enclosures comprising a base with a removable cover intended for the complete surrounding
of insulated conductors, cables, cords and for the accommodation of other electrical equipment
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

3.21
double-pole circuit breaker
device intended to interrupt both the neutral and active (phase) conductors in a circuit simultaneously
when a designated current is exceeded for a predetermined time
3.22
captive spade terminal
conductor terminal component which is maintained in the connection to the screw or stud even when
the threaded terminal fastener is loose
3.23
exposed conductive part
conductive part of electrical equipment, which can be readily touched and which is not normally live, but
which can become live under fault conditions
3.24
fuse
protective device that interrupts the circuit irreversibly when the current flow reaches a specified value
for a specific time
[SOURCE: ISO 8820-1:2008, 3.1]
3.25
galvanic isolator
device which can be installed in series with the a.c. protective conductor of the shore power cable to
block low voltage d.c. galvanic current flow, but permit the passage of a.c. normally associated with the
protective conductor
3.26
inverter
device powered by d.c. current (batteries), designed primarily to provide a.c. at a required voltage
and frequency
3.27
inverter/charger
device designed to supply either a.c. power to a craft’s electrical system or to utilize the craft’s a.c.
electrical distribution system to charge or maintain a battery or batteries supplying d.c
3.28
extraneous conductive part
conductive part liable to introduce a potential, generally earth potential, and not forming part of the
electrical installation
4 General requirements
4.1 The protective conductor insulation shall be green or green with a yellow stripe. Neither colour
shall be used for current-carrying conductors.
NOTE The equipotential bonding conductor of the d.c. electrical system (see ISO 10133) also uses green
or green with a yellow stripe insulation and is connected to various exposed conductive parts of d.c. electrical
devices, other extraneous conductive parts and the d.c. negative ground/earth.
4.2 For crafts having a fully insulated d.c. system in accordance with ISO 10133, the a.c. protective
conductor shall be connected to:
a) the hull of a metallic hulled craft;
b) the craft’s external ground/earth or ground plate for non-conductive hulls.
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

4.3 The hull of a metallic hull craft shall not be used as a circuit conductor.
4.4 The a.c. protective conductor(s) shall be provided with a final (single) connection to the hull of a
metallic hull craft, or if the craft has a non-metallic hull, to the main grounding/earthing point of the craft.
4.5 On metallic hulls, the point of connection of the protective conductor shall be located above any
anticipated water accumulation.
4.6 Metallic housings or enclosures of permanently installed a.c. electrical appliances shall be connected
to the protective conductor system in the craft.
4.7 Individual circuits shall not be capable of being energized by more than one source of electrical
power at a time. Each shore power inlet, generator or inverter is a separate source of electrical power.
The transfer from one power source circuit to another shall be made by a means which opens all live
conductors, active (phase) and neutral, before closing the alternate source circuit, to prevent arc-over
between contacts, and should be interlocked by mechanical or electromechanical means. The conductors
of both circuits-carrying conductors, active (phase) and neutral, shall be broken simultaneously when
changing power sources.
The requirements for overcurrent protection and sizing of the switch are found in Clause 7. A combination
of power sources may be used provided that:
— the device is constructed and tested to an applicable recognized standard;
— the device includes anti-islanding protection;
— the device includes personnel protection against backfeeding; and
— the installation is performed according to the manufacturer’s instructions.
4.8 Energized parts of electrical equipment shall be guarded against accidental contact by the use of
enclosures of at least IEC 60529-IP 2X or other protective means which shall not be used for non-electrical
equipment. Access to energized parts of the electrical system shall require the use of hand tools or be at
least IP 2X, unless otherwise specified. A suitable warning sign shall be displayed (see 5.2).
4.9 The neutral conductor shall be grounded (earthed) only at the source of power, i.e. at the onboard
generator, the secondary of the isolation or polarization transformer, the shore power connection or
inverter. The shore power neutral shall be grounded (earthed) through the shore power cable and shall
not be grounded (earthed) on board the craft or:
a) for systems using an isolation transformer or polarization transformer, both the generator or
inverter neutral and the transformer secondary neutrals may be grounded at the a.c. main grounding
bus instead of at the generator, inverter, or transformer secondaries;
b) for systems using an isolation transformer or polarization transformer, or no shore power provision,
both the generator or inverter neutral and the transformer secondary neutrals may be ungrounded
provided double-pole protection and switching is installed.
4.10 When an optional galvanic isolator is fitted in the protective conductor to resist imported stray
galvanic current flow while permitting the passage of a.c. current, failure of the isolator shall not result in
an open circuit.
4.11 Reverse polarity indicating devices providing a continuous visible or audible signal shall be installed
in shore power systems and shall respond to the reversal of the active (phase) and the neutral conductors,
if the polarity of the system has to be maintained for the proper operation of the electrical devices in
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SIST EN ISO 13297:2015
ISO 13297:2014(E)

the system. Otherwise, a branch circuit shall be provided with overcurrent protection in only the active
(phase) conductors. This does not apply for the systems indicated below in a) and b).
Reverse polarity indicating devices are not required on craft employing:
a) unpolarized systems using double-pole branch circuit protection;
b) polarization or isolation transformers that establish polarity on the craft.
NOTE 1 Reverse polarity indicating devices might not respond to reversals of a live conductor and the
protective conductor.
NOTE 2 Reverse polarity indicating devices respond to the reversal of an active (phase) conductor or grounded
conductor only when there is continuity of the protective conductor to shore.
4.12 Craft equipped with both d.c and a.c. electrical systems shall have their distribution from either
separate panel boards or from a common one with a partition or other positive means provided to
separate clearly the a.c. and d.c. sections from each other, and shall be clearly identified. Wiring diagrams
to identify circuits, components and conductors shall be included with the craft.
NOTE After completing an a.c. installation it is recommended to perform a system test according to Annex C.
5 Marking
5.1 Shore power inlets shall be marked to indicate voltage and current; they shall also be marked with
the electricity warning symbol (ISO
...