EN ISO 10133:2000

SLOVENSKI STANDARD
01-junij-2001
0DODSORYLOD(OHNWULþQLVLVWHPL,QãWDODFLMHQDSDMDQH]HQRVPHUQRPDOR
QDSHWRVWMR,62
Small craft - Electrical systems - Extra-low-voltage d.c. installations (ISO 10133:2000)
Kleine Wasserfahrzeuge - Elektrische Systeme - Kleinspannungs-Gleichstrom-(DC)
Anlagen (ISO 10133:2000)
Petits navires - Systemes électriques - Installations a tres basse tension a courant
continu (ISO 10133:2000)
Ta slovenski standard je istoveten z: EN ISO 10133:2000
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10133
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2000
ICS 47.080
English version
Small craft - Electrical systems - Extra-low-voltage d.c.
installations (ISO 10133:2000)
Petits navires - Systèmes électriques - Installations à très Kleine Wasserfahrzeuge - Elektrische Systeme -
basse tension à courant continu (ISO 10133:2000) Kleinspannungs-Gleichstrom-(DC)Anlagen (ISO
10133:2000)
This European Standard was approved by CEN on 1 December 2000.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2000 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10133:2000 E
worldwide for CEN national Members.

Page 2
CORRECTED  2001-12-12
Foreword
The text of the International Standard ISO 10133:2000 has been prepared by Technical Committee
ISO/TC 188 "Small craft" in collaboration with CMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2001, and conflicting national standards shall be
withdrawn at the latest by June 2001.
This European Standard 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 ZB, which is an integral part of this
standard.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of the International Standard ISO 10133:2000 was approved by CEN as a European
Standard without any modification.
NOTE: Normative references to International Standards are listed in annex ZA (normative).

Page 3
Annex ZA
(normative)
Normative references to international publications with their corresponding European
publications
This European Standard incorporates, by dated or undated reference, provisions from other publications.
These normativereferences are cited at the appropriate places in the text, and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this European Standard only when incorporated in it by amendment or revision. For undated
references the latest edition of the publication referred to applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated by (mod.), the
relevant EN/HD applies.
Publication Year Title EN/HD Year
ISO 8846 1990 Small craft - Electrical devices - EN 28846 1993
Protection against ignition of
surrounding flammable gases
ISO 10239 2000 Small craft - Liquefied petroleum gas EN ISO 10239 2000
(LPG) systems
ISO 10240 1995 Small craft - Owner's manual EN ISO 10240 1996

Page 4
Annex ZB (informative)
Clauses of this European Standard addressing essential requirements or other
provisions of EU Directives
This European Standard 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 94/25/EC.
WARNING: Other requirements and other EU Directive may be applicable to the product(s) falling
within the scope of this standard.
The following clauses of this standard, as detailed in table ZB.1, are likely to support requirements
of Directive 94/25/EC.
Compliance with the clauses of this standard provides one means of conforming with the specific
essential requirements of the Directive concerned and associated EFTA regulations.
Table ZB.1: Correspondence between this European Standard and EU Directives
Clauses/sub-clauses of this Corresponding annexes/ Comments
European Standard paragraphs of Directive 94/25/EC
4, 5, 6, 7, 8, 9, 10, 11, 12 5.3 of Annex I
Electrical system
12.1 5.2.2 (a) of Annex I
Ignition protection
7.1, 7.4 5.6.1 of Annex I
Fire protection
INTERNATIONAL ISO
STANDARD 10133
Second edition
2000-12-01
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 10133:2000(E)
©
ISO 2000
ISO 10133:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 10133:2000(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 General requirements.3
5 Batteries.4
6 Battery-disconnect switch.4
7 Conductors.5
8 Overcurrent protection.6
9 Panel-boards (switchboards) .7
10 Wiring connections and terminals.7
11 Receptacles/sockets .8
12 Ignition protection .8
Annex A (normative) Conductor requirements.9
Annex B (normative) Information and instructions to be included with owner's manual (ISO 10240) .11
Annex C (informative) Recommended system tests .12
Annex D (informative) Related standards and brief description of their contents.13
ISO 10133:2000(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 3.
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 International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 10133 was prepared by Technical Committee ISO/TC 188, Small craft.
This second edition cancels and replaces the first edition (ISO 10133:1994), of which it constitutes a technical
revision.
Annexes A and B form a normative part of this International Standard. Annexes C and D are for information only.
iv © ISO 2000 – All rights reserved

ISO 10133:2000(E)
Introduction
Annex A specifies conductor requirements. Annex B specifies information and instructions to be included with the
owner's manual (ISO 10240). Annex C provides information on recommended system tests to be performed upon
completion of the d.c. installation.
This International Standard is intended to provide protection against explosion and fires. It is important to realize
that this standard is not intended to achieve this purpose by itself. The manufacturer also needs to comply with
additional standards related to protection against the same possible hazards. These additional standards are listed,
in annex D, with a brief description of their contents. For complete understanding of the requirements, the
manufacturer needs to refer to the actual standard. Compliance with all these International Standards will ensure a
high level of safety in all craft, particularly in those using petrol or liquefied petroleum gas (LPG).
INTERNATIONAL STANDARD ISO 10133:2000(E)
Small craft — Electrical systems — Extra-low-voltage d.c.
installations
1 Scope
This International Standard specifies 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. Engine wiring as supplied by the engine manufacturer is not covered by this International
Standard.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 6722-3: 1993, Road vehicles — Unscreened low-tension cables — Part 3: Conductor sizes and dimensions for
thick-wall insulated cables.
ISO 6722-4: 1993, Road vehicles — Unscreened low-tension cables — Part 4: Conductor sizes and dimensions for
thin-wall insulated cables.
ISO 8846:1990, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases.
1�
ISO 10239:— , Small craft — Liquefied petroleum gas (LPG) systems.
ISO 10240:1995, Small craft — Owner’s manual.
ISO 13297:2000, Small craft — Electrical systems — Alternating current installations.
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code).
IEC 60947-7-1:1989, Low-voltage switchgear and controlgear — Part 7: Ancillary equipment — Section One:
Terminal blocks for copper conductors.
1�
To be published.
ISO 10133:2000(E)
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
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
3.2
engine negative terminal
terminal on the engine to which the negative battery cable is connected
3.3
craft's ground
craft's earth
ground (earth) which is established by a conducting connection (intended or accidental) with the common ground
(potential of the earth's surface), including any conductive part of the wetted surface of the hull
3.4
ignition-protected equipment
equipment designed and constructed in accordance with ISO 8846
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
panel-board
switchboard
supporting panel on which are fixed devices for the purpose of controlling and/or distributing power on a craft
NOTE Examples of devices are circuit-breakers, fuses, switches, instruments and indicators.
3.7
sheath
uniform and continuous tubular protective covering of metallic or non-metallic material, generally extruded around
one or more insulated conductors
EXAMPLES 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 circuit, and which is designed so that the resetting means cannot be manually held in place to
override the current-interrupting mechanism
3.9
accessible
capable of being reached for inspection, removal or maintenance without removal of the permanent structure of the
craft
3.10
readily accessible
capable of being reached quickly and safely for effective use without the use of tools
2 © ISO 2000 – All rights reserved

ISO 10133:2000(E)
3.11
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
3.12
cable trunking
system of closed enclosures comprising a base with a removable cover intended for the complete surrounding of
insulated conductors, cables or cords and for the accommodation of other electrical equipment
3.13
system voltage
nominal voltage supplied to the d.c. distribution panel-board (switchboard) from the power source
3.14
exposed conductive part
conductive part of electrical equipment, which can be touched and which is not normally live, but which may
become live under fault conditions
3.15
fuse
device that, by fusing of one or more of its specifically designed and proportioned components, opens the circuit in
which it is inserted by breaking the current when this exceeds a given value for a sufficient time.
NOTE The fuse comprises all the parts that form the complete device.
3.16
fully insulated two-wire d.c. system
system in which the d.c. negative is isolated from the ground (earth), i. e. not connected to the water through a
metallic hull or the propulsion system, nor earthed through the a.c. protective conductor
3.17
two-wire d.c. system with negative ground
two-wire d.c. system with negative earth
system in which the d.c. negative is connected to the ground (earth) 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 a
negative ground. The hull shall not be used as a current-carrying conductor. Engine-mounted wiring systems may
use the engine block as the grounded conductor.
4.2 An equipotential bonding conductor, if fitted, shall be connected to the craft's ground (earth) to minimize stray
current corrosion.
4.3 Switches and controls shall be marked to indicate their use, unless the purpose of the switch is obvious and
its mistaken operation will not cause a hazardous condition.
4.4 Protective devices such as 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 the
conductor insulation, connections or wiring-system terminals.
The selection, arrangement and performance characteristics should be such that the following is achieved:
a) maximum continuity of service to healthy circuits under fault conditions through selective operation of the
various protective devices;
ISO 10133:2000(E)
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.
4.5 All d.c. equipment shall function over a voltage range at the battery terminals as follows:
� for a 12 volt system: 10,5 V to 15,5 V;
� for a 24 volt system: 21 V to 31 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 clause A.2.
4.6 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 battery voltage for any appliance, when every appliance in the circuit is
switched on at full load.
5 Batteries
5.1 Batteries shall be permanently installed in a dry, ventilated location above the 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 The batteries installed in the craft shall be capable of inclinations of up to 30° without leakage of electrolyte.
In monohull sailing craft, means shall be provided 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 against mechanical damage at their location or within their
enclosure.
5.6 Batteries shall not be installed directly above or below a fuel tank or fuel filter.
5.7 Any metallic component of the fuel system within 300 mm above
...