Small craft - Electrical systems - Alternating and direct current installations (ISO 13297:2020)

This document specifies the requirements for the design, construction and installation of the following
types of DC and AC electrical systems, installed on small craft either individually or in combination:
a) extra-low-voltage direct current (DC) electrical systems that operate at nominal potentials of
50 V DC or less;
b) single-phase alternating current (AC) systems that operate at a nominal voltage not exceeding
AC 250 V.
This document does not cover the following:
— electrical propulsion systems of direct current less than 1 500 V DC, single-phase alternating
current up to 1 000 V AC, and three-phase alternating current up to 1 000 V AC, which are addressed
by ISO 16315;
— any conductor that is part of an outboard engine assembly and that does not extend beyond the
outboard engine manufacturers supplied cowling;
— three-phase AC installations that operate at a nominal voltage not exceeding 500 V AC, which are
addressed by IEC 60092-507.

Kleine Wasserfahrzeuge - Elektrische Systeme - Wechselstrom- und Gleichstromanlagen (ISO 13297:2020)

Dieses Dokument legt die Anforderungen für die Auslegung, die Herstellung und die Installation der folgenden Arten von elektrischen Gleich  und Wechselstromanlagen fest, die entweder einzeln oder in Kombination in dem Wasserfahrzeug eingebaut sind:
a)   elektrische Kleinspannungs-Gleichstrom-(DC )Systeme, die mit Nennpotenzialen von bis zu DC 50 V betrieben werden;
b)   einphasige Wechselstrom-(AC )Systeme, die mit einer Spannung betrieben werden, die AC 250 V nicht überschreitet.
Dieses Dokument gilt nicht für:
   elektrische Antriebssysteme mit Gleichstrom von weniger als 1 500 V DC, einphasigem Wechselstrom bis 1 000 V AC und Dreiphasen-Wechselstrom bis 1 000 V AC, die in ISO 16315 behandelt werden;
   Leiter, die Teil einer Außenbordmotor-Anlage sind und nicht über die vom Außenbordmotor-Hersteller gelieferte Motorhaube hinausreichen;
   Dreiphasen-Wechselstromanlagen, die mit einer Nennspannung betrieben werden, die 500 V AC nicht übersteigt, und die in IEC 60092 507 behandelt werden.

Petits navires - Installations électriques - Installations à courant alternatif continu (ISO 13297:2020)

Mala plovila - Električni sistemi - Inštalacije za izmenični in enosmerni tok (ISO 13297:2020)

General Information

Status
Published
Public Enquiry End Date
21-Oct-2018
Publication Date
03-May-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Apr-2021
Due Date
27-Jun-2021
Completion Date
04-May-2021

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SLOVENSKI STANDARD
SIST EN ISO 13297:2021
01-junij-2021
Nadomešča:
SIST EN ISO 10133:2017
SIST EN ISO 13297:2018

Mala plovila - Električni sistemi - Inštalacije za izmenični in enosmerni tok (ISO

13297:2020)

Small craft - Electrical systems - Alternating and direct current installations (ISO

13297:2020)
Kleine Wasserfahrzeuge - Elektrische Systeme - Wechselstrom- und
Gleichstromanlagen (ISO 13297:2020)

Petits navires - Installations électriques - Installations à courant alternatif continu (ISO

13297:2020)
Ta slovenski standard je istoveten z: EN ISO 13297:2021
ICS:
47.020.60 Električna oprema ladij in Electrical equipment of ships
konstrukcij na morju and of marine structures
47.080 Čolni Small craft
SIST EN ISO 13297:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 13297:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 13297:2021
EN ISO 13297
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 10133:2017, EN ISO 13297:2018
English Version
Small craft - Electrical systems - Alternating and direct
current installations (ISO 13297:2020)

Petits navires - Installations électriques - Installations Kleine Wasserfahrzeuge - Elektrische Systeme -

à courant alternatif et continu (ISO 13297:2020) Wechselstrom- und Gleichstromanlagen (ISO

13297:2020)
This European Standard was approved by CEN on 6 July 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13297:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 13297:2021
EN ISO 13297:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of Directive 2013/53/EU aimed to be covered ....................................................... 4

---------------------- Page: 4 ----------------------
SIST EN ISO 13297:2021
EN ISO 13297:2021 (E)
European foreword

This document (EN ISO 13297:2021) has been prepared by Technical Committee ISO/TC 188 "Small

craft" in collaboration with CCMC.

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 October 2021, and conflicting national standards shall

be withdrawn at the latest by October 2021.

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 ISO 10133:2017 and EN ISO 13297:2018.

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 the 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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 13297:2020 has been approved by CEN as EN ISO 13297:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 13297:2021
EN ISO 13297:2021 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Directive 2013/53/EU aimed to be covered

This European Standard has been prepared under a Commission’s standardization request

M/542 C(2015) 8736 final to provide one voluntary means of conforming to Essential Requirements of

Directive 2013/53/EU.

Once this standard is cited in the Official Journal of the European Union under that Directive,

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 corresponding Essential Requirements

of that Directive and associated EFTA regulations.

Table ZA.1 — Correspondence between this European Standard and Directive 2013/53/EU

Essential Requirements of Clause(s)/sub-clause(s) of
Remarks/Notes
Directive 2013/53/EU this EN

Annex I, Part A, 5.3 - All clauses except Clause 26, This standard does not deal with

Electrical systems Annex A battery ventilation to prevent the
accumulation of explosive gases
or electric propulsion circuits.
Annex I, Part A, 5.6.1 - Fire Clause 20.6 In respect of routing electrical
protection; general conductors away from exhaust
components and heat sources.

Annex I, Part A, 2.5 - Owner’s Clause 26, Annex B Annex B specifies the information

manual to be included in the owner’s
manual, it does specify the
requirements for the owner’s
manual

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European

Standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European

Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
---------------------- Page: 6 ----------------------
SIST EN ISO 13297:2021
INTERNATIONAL ISO
STANDARD 13297
Fifth edition
2020-12
Small craft — Electrical systems
— Alternating and direct current
installations
Petits navires — Installations électriques — Installations à courant
alternatif et continu
Reference number
ISO 13297:2020(E)
ISO 2020
---------------------- Page: 7 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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 © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 General requirements, DC and AC systems ............................................................................................................................... 5

5 General requirements, DC systems ................................................................................................................................................... 6

6 General requirements, AC systems .................................................................................................................................................... 7

7 Marking, AC systems ......................................................................................................................................................................................... 8

8 Batteries, DC systems ....................................................................................................................................................................................... 9

9 Battery-disconnect switch, DC systems ......................................................................................................................................11

10 Power source options, AC systems ..................................................................................................................................................11

11 Inverters and inverter/chargers, AC systems ......................................................................................................................12

12 Overcurrent protection, DC systems .............................................................................................................................................13

13 Overcurrent protection, AC systems .............................................................................................................................................14

13.1 General ........................................................................................................................................................................................................14

13.2 Supply circuits ......................................................................................................................................................................................14

13.3 Branch circuits .....................................................................................................................................................................................14

14 Ground-fault protection/earth-leakage protection, AC systems .....................................................................15

15 Panel boards (switchboards), DC and AC systems ..........................................................................................................15

16 Panel boards (switchboards), AC systems ..............................................................................................................................15

17 Conductors, DC and AC systems .........................................................................................................................................................15

18 Conductors, DC systems .............................................................................................................................................................................16

19 Conductors, AC systems ..............................................................................................................................................................................16

20 System wiring, DC and AC systems ..................................................................................................................................................17

21 System wiring, DC systems ......................................................................................................................................................................19

22 Socket outlets, DC systems ......................................................................................................................................................................19

23 Socket outlets, AC systems .......................................................................................................................................................................19

24 Appliances and equipment, AC systems ....................................................................................................................................19

25 Ignition protection, DC and AC systems .....................................................................................................................................19

26 Owner’s manual..................................................................................................................................................................................................20

Annex A (normative) Conductor requirements .....................................................................................................................................21

Annex B (normative) Instructions to be included with owner's manual ....................................................................23

Annex C (informative) Recommended system tests ..........................................................................................................................24

Annex D (informative) Typical AC system diagrams .........................................................................................................................25

Annex E (informative) Overcurrent protection location options.........................................................................................32

Bibliography .............................................................................................................................................................................................................................34

© ISO 2020 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(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 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, in collaboration with

the European Committee for Standardization (CEN) Technical Committee CEN/TC 464, Small craft, in

accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This fifth edition of ISO 13297 cancels and replaces ISO 13297:2014 and ISO 10133:2012, which have

been technically revised.
The main changes compared to the previous editions are as follows:

— combined the standard for alternating current (ISO 13297:2014) and the standard for direct current

(ISO 10133:2012) into a single marine electrical standard.

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 © ISO 2020 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 13297:2021
INTERNATIONAL STANDARD ISO 13297:2020(E)
Small craft — Electrical systems — Alternating and direct
current installations

IMPORTANT — The colours represented in the electronic file of this document can be neither

viewed on screen nor printed as true representations. For the purposes of colour matching,

see ISO 3864-4, which provides colorimetric and photometric properties together with, as a

guideline, references from colour order systems.
1 Scope

This document specifies the requirements for the design, construction and installation of the following

types of DC and AC electrical systems, installed on small craft either individually or in combination:

a) extra-low-voltage direct current (DC) electrical systems that operate at nominal potentials of

50 V DC or less;

b) single-phase alternating current (AC) systems that operate at a nominal voltage not exceeding

AC 250 V.
This document does not cover the following:

— electrical propulsion systems of direct current less than 1 500 V DC, single-phase alternating

current up to 1 000 V AC, and three-phase alternating current up to 1 000 V AC, which are addressed

by ISO 16315;

— any conductor that is part of an outboard engine assembly and that does not extend beyond the

outboard engine manufacturers supplied cowling;

— three-phase AC installations that operate at a nominal voltage not exceeding 500 V AC, which are

addressed by IEC 60092-507.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 7010:2019, Graphical symbols — Safety colours and safety signs — Registered safety signs

ISO 8846:1990, Small craft — Electrical devices — Protection against ignition of surrounding

flammable gases
ISO 10240:2019, Small craft — Owner’s manual

IEC 60309-2:1999, Plugs, socket-outlets and couplers for industrial purposes — Part 2: Dimensional

interchangeability requirements for pin and contact-tube accessories
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.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
© ISO 2020 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
craft’s ground/earth
protective grounding

connection, provided for safety purposes, that is established by a conducting connection with the

common ground/earth (potential of the earth's surface)
3.2
equipotential bonding conductor

normally non-current-carrying conductor used to put various exposed conductive parts (3.15) of direct

current electrical devices and extraneous conductive parts (3.33) at a substantially equal potential

3.3
engine negative terminal

terminal on the engine, starter or solenoid to which the negative battery cable is connected

3.4
main grounding
earthing point

main point that provides connection for the DC negative conductor, AC protective grounding conductor

(3.10) and bonding conductor to the craft's ground that is established by a conducting connection

(intended or accidental) with the common ground (potential of the earth's surface)

Note 1 to entry: It can include any conductive part of the wetted surface of the hull in permanent contact with the

water, depending on the overall system design.
3.5
overcurrent protection device

device designed to interrupt the circuit when the current flow exceeds a predetermined value for a

predetermined time
EXAMPLE A fuse (3.29) or circuit breaker.
3.6
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.
3.7
polarization transformer

transformer that automatically orientates the neutral and active (phase) conductors (3.12) in the system

in the same polarity orientation as the polarized system (3.17) of the craft
3.8
isolation transformer

transformer installed in the shore power supply circuit on a craft to electrically isolate all the normally

live conductors (3.11) and the protective conductor (3.10) on the craft from the AC system conductors of

the shore power supply
3.9
neutral conductor

conductor intentionally maintained at ground potential and capable of contributing to the transmission

of electrical energy
2 © ISO 2020 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
3.10
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 AC grounding conductor through the shore power cable:
a) exposed conductive parts (3.15) of electrical equipment;
b) extraneous conductive parts (3.33);
c) the main grounding (earthing) terminal;
d) earth electrode(s);
e) the earth point of a source, or an artificial neutral
3.11
live conductor

conductor or conductive part intended to be energized in normal use, including a neutral conductor (3.9)

3.12
active (phase) conductor

conductor that is maintained at a difference of potential from the neutral conductor (3.9) or protective

conductor (3.10)

Note 1 to entry: In a system that does not include a neutral or protective conductor, all conductors are considered

active conductors.
3.13
ignition-protected

designed and constructed to give protection against ignition of surrounding

flammable gases

Note 1 to entry: The protection against ignition of surrounding flammable gases is covered in ISO 8846:1990.

3.14
system voltage
nominal voltage supplied to the craft from a power source
3.15
exposed conductive part

conductive part of electrical equipment, which can be touched and which is not normally live, but which

can become live under fault conditions
3.16
panel board
switchboard

assembly of devices for the purpose of controlling and/or distributing electrical power

Note 1 to entry: It can include devices such as circuit breakers, fuses (3.29), switches, instruments, and indicators.

3.17
polarized system

system in which the live conductors (3.11) (active and neutral) are connected in the same relation to all

terminals on devices or receptacles (socket outlets) in a circuit
© ISO 2020 – All rights reserved 3
---------------------- Page: 13 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
3.18
fully insulated two-wire DC system

system in which both positive and negative poles remain isolated from the ground (earth), e.g. not

connected to the water through a metallic hull, the propulsion system or earthed through the AC

protective conductor (3.10)

Note 1 to entry: Some systems can use a momentary ground connection for engine starting purposes and can

remain isolated.
3.19
self-limiting

device whose maximum output is restricted to a specified value by its magnetic or electrical

characteristics
3.20
two-wire DC system with negative ground
system in which the DC negative is connected to the ground
3.21
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
3.22
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

3.23
accessible

capable of being reached for inspection, removal or maintenance without removal of permanent craft

structure
3.24
readily accessible

capable of being reached for use, inspection, removal or maintenance without the use of tools

3.25
sheath

uniform and continuous tubular protective 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.
3.26
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
3.27
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
4 © ISO 2020 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 13297:2021
ISO 13297:2020(E)
3.28
double-pole circuit breaker

device intended to interrupt both the neutral conductor (3.9) and active (phase) conductors (3.12) in a

circuit simultaneously when a designated current is exceeded for a predetermined time

3.29
fuse

protective device that interrupts the circuit irreversibly when the current flow reaches a specified

value for a specific time
[SOURCE: ISO 8820-1:2014, 3.2, modified – Note 1 to entry has been deleted.]
3.30
galvanic isolator

device which can be installed in series with the AC protective conductor (3.10) of the shore power cable

to block low voltage DC galvanic current flow, but permits the passage of AC normally associated with

the protective conductor
3.31
inverter

device powered by a DC source, designed primarily to provide AC power at a required voltage and

frequency
3.32
inverter/charger

device designed to supply either AC power to a craft’s electrical system or to utilize the craft’s AC

electrical distribution system to charge or maintain a battery or batteries supplying DC

3.33
extraneous conductive part

conductive part liable to introduce a potential, generally ground/earth potential, and not forming part

of the electrical installation
3.34
ground plate

means to conduct the electrical current from a craft's conductive element to the water

3.35
craft
small craft

recreational boat, and other watercraft using similar equipment, of up to 24 m length of hull (L )

Note 1 to entry: The measurement methodology for the length of hull is defined in ISO 8666.

[SOURCE: ISO 8666:2020, 3.15, modified – Note 1 to entry has been added.]
4 General requirements, DC and AC systems
4.1 The hull of a metallic hull craft shall not be used as a circuit conductor.

4.2 Craft equipped with both DC and AC electrical systems shall have their distribution from either

separate panel boards, or from a common one with a partition, or from other positive means to separate

clearly the AC and DC sections from each other, and these shall be clearly identified.

4.3 Wiring diagrams to identify circuits, components and conductors shall be included with the craft.

After completing an AC inst
...

SLOVENSKI STANDARD
oSIST prEN ISO 13297:2018
01-oktober-2018

0DODSORYLOD(OHNWULþQLVLVWHPL,QãWDODFLMH]DL]PHQLþQLWRN ,62',6

Small craft - Electrical systems - Alternating current installations (ISO/DIS 13297:2018)

Kleine Wasserfahrzeuge - Elektrische Systeme - Wechselstrom- und
Gleichstromanlagen (ISO/DIS 13297:2018)
Petits navires - Systèmes électriques - Installations à courant alternatif
Ta slovenski standard je istoveten z: prEN ISO 13297
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
oSIST prEN ISO 13297:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 13297:2018
---------------------- Page: 2 ----------------------
oSIST prEN ISO 13297:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13297
ISO/TC 188 Secretariat: SIS
Voting begins on: Voting terminates on:
2018-07-30 2018-10-22
Small craft — Electrical systems — Alternating and direct
current installations
Titre manque
ICS: 47.080
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 13297:2018(E)
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. ISO 2018
---------------------- Page: 3 ----------------------
oSIST prEN ISO 13297:2018
ISO/DIS 13297:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

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

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Published in Switzerland
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oSIST prEN ISO 13297:2018
ISO/DIS 13297:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 General requirements, DC and AC Systems ............................................................................................................................... 5

5 General requirements, d.c. Systems .................................................................................................................................................. 6

6 General requirements, a.c. Systems .................................................................................................................................................. 7

7 Marking, a.c. Systems ....................................................................................................................................................................................... 8

8 Batteries, d.c. Systems ..................................................................................................................................................................................... 9

9 Battery-disconnect switch, d.c. Systems ....................................................................................................................................10

10 Power source options, AC Systems ..................................................................................................................................................11

11 Inverters and inverter/chargers, AC Systems ......................................................................................................................11

12 Overcurrent protection, d.c. Systems ...........................................................................................................................................13

13 Overcurrent protection, a.c. Systems ............................................................................................................................................14

13.1 General ........................................................................................................................................................................................................14

13.2 Supply circuits ......................................................................................................................................................................................14

13.3 Branch circuits .....................................................................................................................................................................................14

14 Ground-fault protection/earth-leakage protection, a.c. Systems ...................................................................14

15 Panel boards (switchboards), d.c. and a.c. Systems.......................................................................................................15

16 Panel boards (switchboards), a.c. Systems .............................................................................................................................15

17 Conductors, d.c. and a.c. Systems ......................................................................................................................................................15

18 Conductors, d.c. Systems ............................................................................................................................................................................15

19 Conductors, a.c. Systems ............................................................................................................................................................................16

20 System wiring, d.c. and a.c. Systems ...............................................................................................................................................17

21 System wiring, d.c. Systems ....................................................................................................................................................................19

22 Socket outlets, d.c. and d.c. Systems ..............................................................................................................................................19

23 Socket outlets, a.c. Systems .....................................................................................................................................................................19

24 Appliances and equipment, a.c. Systems ..................................................................................................................................19

25 Ignition protection, d.c. and a.c. Systems..................................................................................................................................19

Annex A (normative) Conductor requirements .....................................................................................................................................21

Annex B (normative) Instructions to be included with owner's manual ....................................................................23

Annex C (informative) Recommended system tests ..........................................................................................................................24

Annex D (informative) Typical a.c. system diagrams ........................................................................................................................25

Annex E (informative) Overcurrent protection location options.........................................................................................32

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of Directive 2013/53/EU aimed to be covered ...........................................................................34

Bibliography .............................................................................................................................................................................................................................35

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oSIST prEN ISO 13297:2018
ISO/DIS 13297:2018(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 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 188, Small craft.

This fifth edition cancels and replaces the fourth edition (ISO 13297:2014), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— xxx xxxxxxx xxx xxxx

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 © ISO 2018 – All rights reserved
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oSIST prEN ISO 13297:2018
DRAFT INTERNATIONAL STANDARD ISO/DIS 13297:2018(E)
Small craft — Electrical systems — Alternating and direct
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

the types of d.c. and a.c. electrical systems described below, either individually or in combination.

a) low-voltage alternating current electrical systems which operate at nominal voltages of less than

250 V single phase and extra-low-voltage direct current (d.c.) electrical systems which operate at

nominal potentials of 50 V d.c. or less on small craft.

b) Single-phase alternating current systems which operate at a nominal voltage not exceeding a.c. 250 V.

It is noted that IEC 60092-507 applies to recreational craft of less than 24 m hull length in respect of

three-phase alternating current installations which operate at a nominal voltage not exceeding a.c. 500 V.

This standard does not cover the following:

— electrical propulsion circuits exceeding 50 V d.c.. which are addressed by ISO 16315;

— Any conductor that is part of an outboard engine assembly and which does not extend beyond the

outboard engine manufacturers supplied cowling.

Additional information to be included in the owner's manual is listed in Annex B.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. 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 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)
ISO 10239, Small craft — Liquefied petroleum gas (LPG) systems
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oSIST prEN ISO 13297:2018
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
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)
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
engine negative terminal

terminal on the engine, starter or solenoid to which the negative battery cable is connected

3.4
main grounding
earthing point

main point that provides connection for the d.c. negative conductor, a.c.. protective grounding conductor

and bonding conductor to the craft's ground that is established by a conducting connection (intended

or accidental) with the common ground (potential of the earth's surface)

Note 1 to entry: It may include any conductive part of the wetted surface of the hull in permanent contact with

the water, depending on the overall system design.
3.5
overcurrent protection (device)

device, such as a fuse or circuit breaker, designed to interrupt the circuit when the current flow exceeds

a predetermined value for a predetermined time
3.6
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.
3.7
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
3.8
isolation transformer

a transformer installed in the shore power supply circuit on a boat to electrically isolate all the normally

live conductors, and the protective conductor on the boat from the a.c. system conductors of the shore

power supply
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3.9
neutral conductor

conductor intentionally maintained at ground potential and capable of contributing to the transmission

of electrical energy
3.10
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
3.11
live conductor

conductor or conductive part intended to be energized in normal use, including a neutral conductor

3.12
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.
3.13
ignition-protected equipment

equipment designed and constructed to give protection against ignition of surrounding flammable

gases as outlined in ISO 8846
3.14
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.
3.15
system voltage(s)

nominal voltage supplied to the a.c. and or a.c. distribution panel board (switchboard) from the

power source
3.16
exposed conductive part

conductive part of electrical equipment, which can be touched and which is not normally live, but which

can become live under fault conditions
3.17
panel board
switchboard

an assembly of devices for the purpose of controlling and/or distributing electrical power. It may

include devices such as circuit breakers, fuses, switches, intruments, and indicators

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3.18
polarized system

system in which the live conductors (active and neutral) are connected in the same relation to all

terminals on devices or receptacles (socket outlets) in a circuit
3.19
fully insulated two-wire D.C. system

system in which both positive and negative poles remain isolated from the ground (earth), e.g. not

connected to the water through a metallic hull, the propulsion system or earthed through the a.c...

protective conductor

Note 1 to entry: Some systems may use a momentary ground connection for engine starting purposes and may

remain isolated.
3.20
self-limiting

device whose maximum output is restricted to a specified value by its magnetic or electrical

characteristics
3.21
two-wire D.C. system with negative ground (earth)

system in which the D.C. negative is connected to the ground through a metallic hull, the propulsion

system or other means
3.22
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
3.23
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

3.24
accessible

capable of being reached for inspection, removal or maintenance without removing the craft's

permanent structure
3.25
readily accessible

capable of being reached quickly and safely for effective use without the use of tools

3.26
sheath

uniform and continuous tubular protective 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.
3.27
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
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3.28
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
3.29
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
3.30
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]
3.31
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
3.32
inverter

device powered by a d.c. source, designed primarily to provide a.c. at a required voltage and frequency

3.33
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.

3.34
extraneous conductive part

conductive part liable to introduce a potential, generally earth potential, and not forming part of the

electrical installation
3.35
ground plate

means to conduct the electrical current from a boats conductive element to the water

4 General requirements, DC and AC Systems
4.1 The hull of a metallic hull craft shall not be used as a circuit conductor.

4.2 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.

4.3 Switches and controls shall be marked to indicate their function, unless the purpose of the switch is

obvious and if operation of the switch could not, under normal operating conditions, cause a hazardous

condition.
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5 General requirements, d.c. Systems

5.1 The system type shall be either a fully insulated two wire d.c. system or a two-wire d.c. system with

negative ground. Engine-mounted wiring systems can use the engine block as the grounded conductor.

For d.c. systems with a negative ground, the main grounding/earthing point shall be either:

a) the engine negative terminal; or
b) a main grounding bus of sufficient current carrying capacity.

Systems with multiple battery banks shall have a common negative connection. Exceptions to this are

for dedicated power systems isolated from boat system e.g. propulsion system that are clearly identified

as part of the isolated system.

5.2 An equipotential bonding conductor, if fitted, shall be connected to the craft's main grounding/

earthing point.

5.3 Protective devices such as trip free circuit breakers or fuses shall be provided at the source of

power, e.g. the panelboard (switchboard), to interrupt any overload current in the circuit conductors

before heat can damage conductor insulation, connections or wiring system terminals.

5.3.1 The selection, arrangement and performance characteristics shall be such that:

a) maximum continuity of service to healthy circuits when fault conditions exist in other circuits

through selective operation of the various protective devices; and

b) protection of electrical equipment and circuits from damage due to overcurrents by coordination

of the electrical characteristics of the circuit or apparatus and the tripping characteristics of the

protective devices.

5.4 All d.c. equipment shall be capable of function within a voltage range of 75 % to 133 % of nominal

voltage at the battery terminals, e.g.:
— for a 12 V system: 9 V to 16 V
— for a 24 V system: 18 V to 32 V
— for a 48 V system: 36 V to 64 V

EXCEPTION Where the circuit includes equipment requiring a higher minimum voltage, the specified

minimum voltage shall be used in the calculation of the conductor size. See Annex A.

5.5 The length and cross sectional area of conductors in each circuit shall be such that the calculated

voltage drop shall not exceed 10 % of the nominal voltage.

5.6 equipment vital to safety, where the voltage drop is critical shall be supplied with the proper

voltage to achieve the rated performance.
NOTE 1 See Annex A for voltage drop calculations.
NOTE 2 A 3 % voltage drop is acceptable for this equipment.
Examples of circuits that are dependent on a minimum voltage drop include:
a) panel board/switchboard main conductors;
b) navigation lights;
c) bilge blowers; and
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d) bilge pumps.
6 General requirements, a.c. Systems

6.1 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 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.

6.2 For craft having a fully insulated d.c. system, the a.c. protective conductor shall be connected to:

a) the hull of a metallic hulled craft;
b) for non-conductive hulls, the craft's external ground/earth or ground plate.

6.3 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.

6.4 On metallic hulls, the point of connection of the protective conductor shall be located above any

anticipated water accumulation.

6.5 Metallic housings or enclosures of permanently installed a.c. electrical appliances shall be

connected to the protective conductor system in the craft.

6.6 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 current-

carrying 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. A

device that simultaneously breaks both current carrying conductors, active (phase) and neutral, shall be

used when changing power sources.

The requirements for overcurrent protection are found in Clause13. A combination of power sources

can be used provided that:
a) the device is constructed and tested to an applicable recognized standard;

b) the device includes protection to prevent backfeeding to shore power. (anti-islanding protection) ;

c) the device includes personnel protection against backfeeding; and
d) the installation is performed accor
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