SIST EN ISO 10133:2017
(Main)Small craft - Electrical systems - Extra-low-voltage d.c. installations (ISO 10133:2012)
Small craft - Electrical systems - Extra-low-voltage d.c. installations (ISO 10133:2012)
This International Standard establishes the requirements for the design, construction and installation of extralow-
voltage direct current (d.c.) electrical systems which operate at nominal potentials of 50 V d.c. or less on
small craft of hull length up to 24 m. Conductors that are part of an outboard engine assembly and that do not
extend beyond the outboard engine manufacturer’s supplied cowling are not included.
Additional information to be included in the owner’s manual is listed in Annex B.
Kleine Wasserfahrzeuge - Elektrische Systeme - Kleinspannungs-Gleichstrom-(DC-)Anlagen (ISO 10133:2012)
Petits navires - Systèmes électriques - Installations à très basse tension à courant continu (ISO 10133:2012)
Mala plovila - Električni sistemi - Inštalacije, napajane z enosmerno malo napetostjo (ISO 10133:2012)
Ta mednarodni standard določa zahteve za načrtovanje, izdelavo in namestitev električnih sistemov, napajanih z enosmerno malo napetostjo, ki delujejo pri nazivni enosmerni napetosti 50 V ali manj na malih plovilih z dolžino trupa do 24 m. Vključeni niso vodniki, ki so del sestave izven krmnega motorja in ne segajo prek pokrova, ki ga je dobavil proizvajalec izven krmnega motorja. Dodatne informacije, ki morajo biti vključene v navodila za uporabo, so navedene v dodatku B.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 10133:2017
01-oktober-2017
1DGRPHãþD
SIST EN ISO 10133:2013
0DODSORYLOD(OHNWULþQLVLVWHPL,QãWDODFLMHQDSDMDQH]HQRVPHUQRPDOR
QDSHWRVWMR ,62
Small craft - Electrical systems - Extra-low-voltage d.c. installations (ISO 10133:2012)
Kleine Wasserfahrzeuge - Elektrische Systeme - Kleinspannungs-Gleichstrom-(DC-)
Anlagen (ISO 10133:2012)
Petits navires - Systèmes électriques - Installations à très basse tension à courant
continu (ISO 10133:2012)
Ta slovenski standard je istoveten z: EN ISO 10133:2017
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
SIST EN ISO 10133:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 10133:2017
---------------------- Page: 2 ----------------------
SIST EN ISO 10133:2017
EN ISO 10133
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2017
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 10133:2012
English Version
Small craft - Electrical systems - Extra-low-voltage d.c.
installations (ISO 10133:2012)
Petits navires - Systèmes électriques - Installations à Kleine Wasserfahrzeuge - Elektrische Systeme -
très basse tension à courant continu (ISO 10133:2012) Kleinspannungs-Gleichstrom-(DC-)Anlagen (ISO
10133:2012)
This European Standard was approved by CEN on 10 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 10133:2017 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 10133:2017
EN ISO 10133:2017 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU . 4
2
---------------------- Page: 4 ----------------------
SIST EN ISO 10133:2017
EN ISO 10133:2017 (E)
European foreword
The text of ISO 10133:2012 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 10133:2017.
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 ISO 10133:2012.
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(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 10133:2012 has been approved by CEN as EN ISO 10133:2017 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 10133:2017
EN ISO 10133:2017 (E)
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 Essential requirements (ERs) of Qualifying remarks/Notes
of this European EU Directive 2013/53/EU
Standard
Annex B Annex 1 A, 2.5 - Owner's manual
4, 5, 6, 7, 8, 9, 10, 11, Annex 1 A, 5.3 – Electrical system This standard is applicable for extra low-
12, Annex A voltage Direct Current (DC) electrical
systems which operate at nominal
potentials of DC 50V or less.
This standard does not give specific
requirements for ventilation to prevent
the accumulation of explosive gases
emitted from batteries
12 Annex 1 A, 5.2.2 – Fuel system, In respect of ignition protection
fuel tanks
Sub-clause (a) – protection
against fire from […] all other
sources of ignition.
4.4, 7.1, 7.13 Annex 1 A, 5.6.1 – Fire protection,
general
WARNING: Other requirements and other EU Directives may be applicable to the products falling
within the scope of this standard.
4
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SIST EN ISO 10133:2017
INTERNATIONAL ISO
STANDARD 10133
Third edition
2012-12-15
Small craft — Electrical systems — Extra-
low-voltage d.c. installations
Petits navires — Systèmes électriques — Installations à très basse
tension à courant continu
Reference number
ISO 10133:2012(E)
©
ISO 2012
---------------------- Page: 7 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, 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 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 2012 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 3
5 Batteries . 4
6 Battery-disconnect switch . 5
7 Conductors . 5
8 Overcurrent protection . 7
9 Panel boards (switchboards) . 7
10 Wiring connections and terminals . 8
11 Socket outlets . 9
12 Ignition protection . 9
Annex A (normative) Conductor requirements.10
Annex B (normative) Information and instructions to be included with owner’s manual .12
Annex C (informative) Overcurrent protection location options .13
Bibliography .15
© ISO 2012 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 10133 was prepared by Technical Committee ISO/TC 188, Small craft.
This third edition cancels and replaces the second edition (ISO 10133:2000), which has been technically revised.
iv © ISO 2012 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 10133:2017
INTERNATIONAL STANDARD ISO 10133:2012(E)
Small craft — Electrical systems — Extra-low-voltage d.c.
installations
1 Scope
This International Standard establishes the requirements for the design, construction and installation of extra-
low-voltage direct current (d.c.) electrical systems which operate at nominal potentials of 50 V d.c. or less on
small craft of hull length up to 24 m. Conductors that are part of an outboard engine assembly and that do not
extend beyond the outboard engine manufacturer’s supplied cowling are not included.
Additional information to be included in the owner’s manual is listed in Annex B.
2 Normative references
The following referenced documents are indispensable for the application 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 8846, Small craft ― Electrical devices ― Protection against ignition of surrounding flammable gases
ISO 10239, Small craft ― Liquefied petroleum gas (LPG) systems
ISO 10240, Small craft ― Owner’s manual
IEC 60529, 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
equipotential bonding conductor
normally non-current-carrying conductor used to put various exposed conductive parts of electrical devices
and extraneous conductive parts at a substantially equal potential
3.2
engine negative terminal
terminal on the engine, starter or solenoid to which the negative battery cable is connected
3.3
main grounding
earthing point
main point or bus that provides connection to the common ground for the d.c. negative conductor, for a.c.
protective grounding conductors and neutral, where relevant, and where necessary functional grounding
NOTE 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.
3.4
ignition-protected equipment
equipment designed and constructed to give protection against ignition of surrounding flammable gases
NOTE See ISO 8846.
© ISO 2012 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(E)
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 or circuit breaker.
3.6
panel board
switchboard
assembly of devices for the purpose of controlling and/or distributing electrical power
NOTE Examples of devices include circuit breakers, fuses, switches, instruments and indicators.
3.7
sheath
uniform continuous tubular protective covering of metallic or non-metallic material, generally extruded, around
one or more insulated conductors
NOTE Examples of suitable material include moulded rubber, moulded plastics, woven sleeving or flexible tubing.
3.8
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 short circuits, and which is designed so that the resetting means cannot be manually held in
place to override the current interrupting mechanism
3.9
conduit
part of a closed wiring system of circular or non-circular cross-sections for insulated conductors and/or cables
in electrical installations allowing them to be drawn in and/or replaced
3.10
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
3.11
system voltage(s)
nominal voltage supplied to the d.c. distribution panel board (switchboard) from the power source
3.12
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
3.13
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]
3.14
fully insulated two-wire d.c. system
system in which both positive and negative poles remain isolated from the ground (earth)
EXAMPLE Systems in which the positive and negative poles are not connected to the water through a metallic hull,
the propulsion system or earthed through the a.c. protective conductor.
NOTE Some systems may use a momentary ground connection for engine starting purposes and may remain isolated.
2 © ISO 2012 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(E)
3.15
self-limiting
device whose maximum output is restricted to a specified value by its magnetic or electrical characteristics
3.16
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
4 General requirements
4.1 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.
The hull shall not be used as a current-carrying conductor.
Systems with multiple battery banks shall have a common negative connection. Exceptions to this are for
dedicated electrical systems isolated from a boat system, e.g. electric propulsion systems that are clearly
identified as part of the isolated system.
4.2 An equipotential bonding conductor, if fitted, shall be connected to the craft’s main grounding/earthing point.
4.3 All manually operated switches and controls shall be marked to indicate their use, unless the purpose of
the switch is obvious and mistaken operation of it will not cause a hazardous condition.
4.4 Protective devices such as trip-free circuit breakers or fuses shall be provided at the source of power,
e.g. the panel board (switchboard), to interrupt any overload current in the circuit conductors before heat can
damage conductor insulation, connections or wiring system terminals.
4.5 The selection, arrangement and performance characteristics shall be such that:
a) there is a maximum continuity of service to healthy circuits where fault conditions exist in other circuits
through selective operation of the various protective devices; and
b) electrical equipment and circuits are protected from damage due to overcurrents by coordination of the
electrical characteristics of the circuit or apparatus and the tripping characteristics of the protective devices.
4.6 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.
4.7 The length and cross-sectional area of conductors in each circuit shall be such that the calculated voltage
drop does not exceed 10 % of the nominal voltage.
© ISO 2012 – All rights reserved 3
---------------------- Page: 13 ----------------------
SIST EN ISO 10133:2017
ISO 10133:2012(E)
NOTE See Annex C for voltage drop calculations.
Circuits that typically require a 3 % voltage drop include:
a) panel board/switchboard main conductors;
b) navigation lights;
c) bilge blowers;
d) bilge pumps; and
e) other equipment vital to safety or where voltage drop should be kept to a minimum as specified by their
manufacturer.
5 Batteries
5.1 Batteries shall be permanently installed in a dry, ventilated location above anticipated bilge water level.
5.2 Batteries shall be installed in a manner to restrict their movement horizontally and vertically considering
the intended use of the craft, including trailering if applicable. A battery, as installed, shall not move more than
10 mm in any direction when exposed to a force corresponding to twice the battery weight.
5.3 Batteries as installed in the craft shall be capable of inclinations of up to 30° without leakage of electrolyte.
Means shall be provided in monohull sailing craft for containment of any spilled electrolyt
...
SLOVENSKI STANDARD
kSIST FprEN ISO 10133:2017
01-maj-2017
0DODSORYLOD(OHNWULþQLVLVWHPL,QãWDODFLMHQDSDMDQH]HQRVPHUQRPDOR
QDSHWRVWMR ,62
Small craft - Electrical systems - Extra-low-voltage d.c. installations (ISO 10133:2012)
Kleine Wasserfahrzeuge - Elektrische Systeme - Kleinspannungs-Gleichstrom-(DC-)
Anlagen (ISO 10133:2012)
Petits navires - Systèmes électriques - Installations à très basse tension à courant
continu (ISO 10133:2012)
Ta slovenski standard je istoveten z: FprEN ISO 10133
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
kSIST FprEN ISO 10133:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
kSIST FprEN ISO 10133:2017
---------------------- Page: 2 ----------------------
kSIST FprEN ISO 10133:2017
FINAL DRAFT
EUROPEAN STANDARD
FprEN ISO 10133
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2017
ICS 47.080 Will supersede EN ISO 10133:2012
English Version
Small craft - Electrical systems - Extra-low-voltage d.c.
installations (ISO 10133:2012)
Petits navires - Systèmes électriques - Installations à Kleine Wasserfahrzeuge - Elektrische Systeme -
très basse tension à courant continu (ISO 10133:2012) Kleinspannungs-Gleichstrom-(DC-)Anlagen (ISO
10133:2012)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the
Technical Committee CEN/SS T01.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
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.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
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. FprEN ISO 10133:2017 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
kSIST FprEN ISO 10133:2017
FprEN ISO 10133:2017 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2013/53/EU . 4
2
---------------------- Page: 4 ----------------------
kSIST FprEN ISO 10133:2017
FprEN ISO 10133:2017 (E)
European foreword
The text of ISO 10133:2012 has been prepared by Technical Committee ISO/TC 188 “Small craft” of the
International Organization for Standardization (ISO) and has been taken over as FprEN ISO
10133:2017.
This document is currently submitted to the Unique Acceptance Procedure.
This document will supersede EN ISO 10133:2012.
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(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
Endorsement notice
The text of ISO 10133:2012 has been approved by CEN as FprEN ISO 10133:2017 without any
modification.
3
---------------------- Page: 5 ----------------------
kSIST FprEN ISO 10133:2017
FprEN ISO 10133:2017 (E)
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 Communities 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 Essential requirements (ERs) of Qualifying remarks/Notes
of this European EU Directive 2013/53/EU
Standard
Annex B Annex 1 A, 2.5 - Owner's manual
4, 5, 6, 7, 8, 9, 10, 11, Annex 1 A, 5.3 – Electrical system This standard is applicable for extra low-
12, Annex A voltage Direct Current (DC) electrical
systems which operate at nominal
potentials of DC 50V or less.
This standard does not give specific
requirements for ventilation to prevent
the accumulation of explosive gases
emitted from batteries
12 Annex 1 A, 5.2.2 – Fuel system, In respect of ignition protection
fuel tanks
Sub-clause (a) – protection
against fire from […] all other
sources of ignition.
4.4, 7.1, 7.13 Annex 1 A, 5.6.1 – Fire protection,
general
WARNING: Other requirements and other EU Directives may be applicable to the products falling
within the scope of this standard.
4
---------------------- Page: 6 ----------------------
kSIST FprEN ISO 10133:2017
INTERNATIONAL ISO
STANDARD 10133
Third edition
2012-12-15
Small craft — Electrical systems — Extra-
low-voltage d.c. installations
Petits navires — Systèmes électriques — Installations à très basse
tension à courant continu
Reference number
ISO 10133:2012(E)
©
ISO 2012
---------------------- Page: 7 ----------------------
kSIST FprEN ISO 10133:2017
ISO 10133:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, 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 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 2012 – All rights reserved
---------------------- Page: 8 ----------------------
kSIST FprEN ISO 10133:2017
ISO 10133:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 3
5 Batteries . 4
6 Battery-disconnect switch . 5
7 Conductors . 5
8 Overcurrent protection . 7
9 Panel boards (switchboards) . 7
10 Wiring connections and terminals . 8
11 Socket outlets . 9
12 Ignition protection . 9
Annex A (normative) Conductor requirements.10
Annex B (normative) Information and instructions to be included with owner’s manual .12
Annex C (informative) Overcurrent protection location options .13
Bibliography .15
© ISO 2012 – All rights reserved iii
---------------------- Page: 9 ----------------------
kSIST FprEN ISO 10133:2017
ISO 10133:2012(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 10133 was prepared by Technical Committee ISO/TC 188, Small craft.
This third edition cancels and replaces the second edition (ISO 10133:2000), which has been technically revised.
iv © ISO 2012 – All rights reserved
---------------------- Page: 10 ----------------------
kSIST FprEN ISO 10133:2017
INTERNATIONAL STANDARD ISO 10133:2012(E)
Small craft — Electrical systems — Extra-low-voltage d.c.
installations
1 Scope
This International Standard establishes the requirements for the design, construction and installation of extra-
low-voltage direct current (d.c.) electrical systems which operate at nominal potentials of 50 V d.c. or less on
small craft of hull length up to 24 m. Conductors that are part of an outboard engine assembly and that do not
extend beyond the outboard engine manufacturer’s supplied cowling are not included.
Additional information to be included in the owner’s manual is listed in Annex B.
2 Normative references
The following referenced documents are indispensable for the application 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 8846, Small craft ― Electrical devices ― Protection against ignition of surrounding flammable gases
ISO 10239, Small craft ― Liquefied petroleum gas (LPG) systems
ISO 10240, Small craft ― Owner’s manual
IEC 60529, 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
equipotential bonding conductor
normally non-current-carrying conductor used to put various exposed conductive parts of electrical devices
and extraneous conductive parts at a substantially equal potential
3.2
engine negative terminal
terminal on the engine, starter or solenoid to which the negative battery cable is connected
3.3
main grounding
earthing point
main point or bus that provides connection to the common ground for the d.c. negative conductor, for a.c.
protective grounding conductors and neutral, where relevant, and where necessary functional grounding
NOTE 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.
3.4
ignition-protected equipment
equipment designed and constructed to give protection against ignition of surrounding flammable gases
NOTE See ISO 8846.
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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 or circuit breaker.
3.6
panel board
switchboard
assembly of devices for the purpose of controlling and/or distributing electrical power
NOTE Examples of devices include circuit breakers, fuses, switches, instruments and indicators.
3.7
sheath
uniform continuous tubular protective covering of metallic or non-metallic material, generally extruded, around
one or more insulated conductors
NOTE Examples of suitable material include moulded rubber, moulded plastics, woven sleeving or flexible tubing.
3.8
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 short circuits, and which is designed so that the resetting means cannot be manually held in
place to override the current interrupting mechanism
3.9
conduit
part of a closed wiring system of circular or non-circular cross-sections for insulated conductors and/or cables
in electrical installations allowing them to be drawn in and/or replaced
3.10
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
3.11
system voltage(s)
nominal voltage supplied to the d.c. distribution panel board (switchboard) from the power source
3.12
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
3.13
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]
3.14
fully insulated two-wire d.c. system
system in which both positive and negative poles remain isolated from the ground (earth)
EXAMPLE Systems in which the positive and negative poles are not connected to the water through a metallic hull,
the propulsion system or earthed through the a.c. protective conductor.
NOTE Some systems may use a momentary ground connection for engine starting purposes and may remain isolated.
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3.15
self-limiting
device whose maximum output is restricted to a specified value by its magnetic or electrical characteristics
3.16
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
4 General requirements
4.1 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.
The hull shall not be used as a current-carrying conductor.
Systems with multiple battery banks shall have a common negative connection. Exceptions to this are for
dedicated electrical systems isolated from a boat system, e.g. electric propulsion systems that are clearly
identified as part of the isolated system.
4.2 An equipotential bonding conductor, if fitted, shall be connected to the craft’s main grounding/earthing point.
4.3 All manually operated switches and controls shall be marked to indicate their use, unless the purpose of
the switch is obvious and mistaken operation of it will not cause a hazardous condition.
4.4 Protective devices such as trip-free circuit breakers or fuses shall be provided at the source of power,
e.g. the panel board (switchboard), to interrupt any overload current in the circuit conductors before heat can
damage conductor insulation, connections or wiring system terminals.
4.5 The selection, arrangement and performance characteristics shall be such that:
a) there is a maximum continuity of service to healthy circuits where fault conditions exist in other circuits
through selective operation of the various protective devices; and
b) electrical equipment and circuits are protected from damage due to overcurrents by coordination of the
electrical characteristics of the circuit or apparatus and the tripping characteristics of the protective devices.
4.6 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.
E XCE P T I O N W h e r e t h e c i r c u i t i n c l u d e s e q u i p m e n t r e q u i r i n g a h i g h e r m i n i m u m vo l t a g e , t h e s p e c i fi e d
minimum voltage shall be used in the calculation of the conductor size. See Annex A.
4.7 The length and cross-sectional area of conductors in each circuit shall be such that the calculated voltage
drop does not exceed 10 % of the nominal voltage.
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NOTE See Annex C for voltage drop calculations.
Circuits that typically require a 3 % voltage drop include:
a) panel board/switchboard main conductors;
b) navigation lights;
c) bilge blowers;
d) bilge pumps; and
e) other equipment vital to safety or where voltage drop should be kept to a minimum as specified by their
manufacturer.
5 Batteries
5.1 Batteries shall be permanently installed in a dry, ventilated location above anticipated bilge water level.
5.2 Batteries shall be installed in a manner to restrict their movement horizontally and vertically considering
the intended use of the craft, including trailering if applicable. A battery, as installed, shall not move more than
10 mm in any direction when exposed to a force corresponding to twice the battery weight.
5.3 Batteries as installed in the craft shall be capable of inclinations of up to 30° without leakage of electrolyte.
Means shall be provided in monohull sailing craft for containment of any spilled electrolyte up to inclinations of 45°.
5.4 Batteries shall be installed, designed or protected so that metallic objects cannot come into unintentional
contact with any battery terminal.
5.5 Batteries, as installed, shall be protected ag
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