ISO 13297:1995
(Main)Small craft — Electrical systems — Alternating current installations
Small craft — Electrical systems — Alternating current installations
Navires de plaisance — Systèmes électriques — Installations de distribution de courant alternatif
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD
13297
First edition
1995-12-15
Small traft - Electrical Systems -
Alternating current installations
Navires de plaisance - Systemes 6lec triques - Installa tions
de distribution de CO w-an t altema tif
Reference number
ISO 13297:1995(E)
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ISO 13297:1995(E)
Contents
Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
3 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 General requirements . 2
5 Marking . 3
6 Ignition sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 4
7 Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
8 Ground fault protection/Earth leakage protection . . . . . . . . . . . . . . . . . . . . . 4
........................................................ 5
9 Appliances and equipment
......................................................................... 5
IO System wiring
5
11 Installation .
6
12 Panel boards .
13 Receptacles/sockets . 6
14 Power Source Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Annexes
A Conductor requirements . 8
B Instructions to be included with owner’s manual . 9
IO
C Bibliography .
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronrc or mechanical, including photocopyrng and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
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0 ISO
ISO 13297:1995(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. fach member body interested in a subject for
mihich 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 patt in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 13297 was prepared by Technical Committee
lSO/TC 188, Small traft.
Annex A forms an integral part of this International Standard. Annexes B
and C are for information only.
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ISO 13297:1995(E)
INTERNATIONAL STANDARD 0 ISO
- Electrical Systems - Alternating
Small traft
current installations
3 Definitions
1 Scope
For the purposes of this International Standard, the
This International Standard establishes the require-
following definitions apply.
ments for the design, construction and installation of
low-voltage alternating current electrical Systems
which operate at nominal voltages less than 250 V
3.1 traft ground [earth]: Ground which is estab-
Single Phase on small traft of up to 24 m length of
lished by a conducting connection (intended or acci-
hull .
dental) with the common ground/earth (potential of
the earth’s surface), including any conductive part of
the wetted surface of the hull.
2 Normative references
3.2 ground fault circuit interrupter (GFCI); re-
sidual (differential) current device (RCD): Mechan-
The following Standards contain provisions which,
ical or electro-mechanical switching device or
through reference in this text, constitute provisions
association of devices intended to Cause the inter-
of this International Standard. At the time of publi-
ruption of the current to the load when the residual
cation, the editions indicated were valid. All Standards
current attains a given value.
are subject to revision, and Parties to agreements
based on this International Standard are encouraged
NOTE 1 GFCI serve to reduce the risk of injury to People
to investigate the possibility of applying the most re-
from electrical shock hazard.
cent editions of the Standards indicated below.
Members of IEC and ISO maintain registers of cur-
3.3 Polarkation transformer: Transformer which
rently valid International Standards.
automatically orientates the neutral and live conduc-
tors in the System in the same polarity orientation as
ISO 8846: 1990, Small traft - Electrical devices -
the polarized System of the traft.
Protection against ignition of surrounding flammable
gases.
3.4 neutral conductor: Conductor connected to the
ISO 9094-1 :--J), Small traft - Fire protection -
neutral Point of a System and contributing to the
Part 7: Craft with a hu// length of up to and including
transmission of electrical energy.
75 133.
3.5 protective earthing [grounding] conductor:
Small traft - Liquefied Petroleum gas
ISO 10239: -2
Conductor, not normally carrying current, used for
(LPG) sys tems:
some measures of protection against electric shock
connecting exposed conductive Parts of electrical
Y EC 529:1989, Degrees of protection provided by en-
equipment to the traft ground/earth.
closures (IPcode).
1) To be published.
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ISO 13297:1995(E) 0 ISO
3.18 cable trunking: Manufactured enclosure for
3.6 live conductor: Conductor normally carrying
the protection of conductors or cables, normally of
current from a power Source to an electrical device
rectangular Cross-section, of which one side is re-
or receptacle.
movable or hinged.
3.7 ignition-protected: Equipment designed and
3.19 polarized receptacle: Receptacle permitting
constructed to comply with ISO 8846.
the insertion of the appliance plug in one polarity
orientation only.
3.8 overcurrent protection device: Device, such
as a fuse or circuit breaker, designed to interrupt the
3.20 double-pole circuit breaker: Device intended
circuit when the current flow exceeds a predeter-
to interrupt both the neutral and live conductors in a
mined value.
circuit simultaneously when a designated current is
exceeded.
3.9 Panel board: Assembly of devices, such as cir-
cuit breakers, fuses, switches, instruments and indi-
3.21 captive spade or captive terminal: Conductor
cators, for the purpose of controlling and/or
terminal component which is maintained in the con-
distributing electrical power.
nection to the screw or stud even when the threaded
terminal fastener is loose.
polarized System: System in which the neutral
3.10
and live conductors are connected in the same re-
lation to all terminals on devices or receptacles in a
4 General requirements
circuit. (See 3.6.)
4.1 The protective conductor insulation shall be
3.11 self-limiting device: Equipment with its maxi-
green or green with yellow stripe. Neither colour shall
mum output restricted to a specific value by its own
be used for current-carrying conductors.
magnetic and electrical characteristics.
3.12 shore-power inlet: Fitting designed for
4.2 The protective conductor shall be connected to
mounting on a traft, of a shrouded male type, to
the craft’s dc. negative ground/earth as close as
connect to the female connector on the traft end of
practicable to the battery negative terminal.
the shore-power cable in Order to make the electrical
connection for transmission of electrical energy.
4.3 Metallic traft hulls shall not be used as a con-
ductor or protective conductor.
3.13 trip-free circuit breaker: Thermal and/or mag-
netically operated overcurrent protection device, de-
signed so that the resetting means cannot be
4.4 The protective conductor shall be connected to
manually held in place to override the current-
metallic hulls at one Point only at a location above any
interrupting mechanism.
anticipated water accumulation.
3.14 accessible: Capable of being reached for in-
4.5 For non-metallic traft hulls, the protective con-
spection, removal or maintenance without removal of
ductor or battery negative terminal shall be connected
permanent structure of the traft.
to an earth plate of conductive material not subject to
electrolytic action installed below the waterline on the
3.15 readily accessible: Capable of being reached
outside of the hull, or adequate earthing of the pro-
quickly and safely for effective use without the use
tective conductor to the water shall be maintained
of tools.
through metallic propulsion System or steering sys-
tem components not used for anodic protection.
3.16 sheath: Uniform and continuous tubular cover-
ing consisting of non-metallic material, such as
overlapping electrical tape, moulded rubber, moulded 4.6 Individual circuits shall not be capable of being
plastics, woven sleeving or flexible tubing, around one
energized by more than one Source of electrical
or more insulated conductors.
power at a time. Esch shore-power inlet, generator
or inverter is a separate Source of electrical power.
The transfer from one power Source to another shall
3.17 conduit: Part of a closed wiring System for the
be made by means which prevents arc-over between
protection of conductors or cables in electrical instal-
contacts,
lations, allowing them to be drawn in and/or replaced, and is interlocked by mechanical or
but not inserted laterally. electromechanical means.
2
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0 ISO
ISO 13297:1995(E)
4.10 A galvanic isolator or other suitable device may
4.7 Energized Parts of electrical equipment shall be
be fitted in the protective conductor to resist imported
guarded against accidental contact by the use of en-
stray galvanic current flow while permitting the pass-
closures of at least IEC 529-IP 2X or other protective
means which shall not be used for non-electrical age of a.c. current, if present. Galvanic isolators shall
be designed to withstand the application of power
equipment. Access to energized Parts of the electrical
from a short-circuit test from a Source capable of de-
System shall require the use of hand tools or be at
Iivering 5 000 A r.m.s. symmetrically to its output test
least IP 2X, unless otherwise specified. A suitable
terminals. After three applications of the short-circuit
warning sign shall be displayed (see 5.2).
test, the electrical and mechanical characteristics of
the isolator shall be unchanged.
4.8 The neutral conductor shall be grounded only at
the Source of power, i.e. at the onboard generator, the
secondary of the isolation or polarization transformer,
5 Marking
or the shore-power connection. The shore power
neutral shall be grounded through the shore power
5.1 Shore-power inlets shall be marked to indicate
cable and shall not be grounded on board the traft.
voltage, current and, if there is more than one inlet,
the circuit served.
The traft ground/ear-th shall be connected to the
4.9
ground/earth of the shore-power Source unless an
5.2 A permanently mounted waterproof warning
isolation transformer is fitted. If an isolation trans-
former is fitted, the traft ground/earth shall not be sign shall be located at the Panel board on the traft.
connected to the ground/earth of the shore-power The sign shall include the information shown in
Source. figure Ia) or 1 b).
t
l
A
A
Warning Electrical Fire hazard Read owner's manual
shock hazard
a) Suggested warning sign using Symbols
WARNING - To minimize shock and fire hazards:
1) Turn off traft shore-power connection switch before connecting or disconnecting shore-power
cable.
2) Connect shore-power cable to traft inlet before connecting to shore-power Source.
3) If polarity indicator is activated, immediately disconnect cable.
4) Disconnect shore-power cable at shore-power Source first.
5) Close shore-power inlet cover tightly.
DO NOT ALTER SHORE-POWER CABLE CONNECTORS.
NOTES
2 kern 3 is required only if a polarity indicator is required in the System.
3 Items 2, 4 and 5 are not required for permanently connected shore power cable installations.
b) Suggested warning sign with text in language appropriate to the country of use
Figure 1 - Suggested warning signs
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0 ISO
ISO 13297:1995(E)
tected circuit and their location in the traft, i.e.
5.3 Switches and controls shall be marked to indi-
other space.
machinery space or
cate 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
7.4 All a.c. motor installations and each motor of a
condition.
motor-operated device shall be individually protected
in accordance with 7.3 by an overcurrent or thermal
protection device.
5.4 Electrical equipment shall be marked or ident-
ified to indicate:
An exception may be made for motors that will not
overheat under continuous locked rotor conditions.
manufacturer’s identification;
a)
7.5 The rating of the overcurrent protection device
model number or designation;
b)
shall not exceed the maximum current-carrying ca-
pacity of the conductor being protected. See
a.c. electrical rating in Volts and amperes or Volts
Cl
table A.I.
and Watts;
Phase and frequency, if applicable;
d
7.6 Main supply circuits
e) ignition protected, if applicable, by ISO 8846.
7.6.1 Double-pole circuit breakers shall be installed
in conductors to the main power supply circuits.
6 Ignition sources
7.6.2 Overcurrent protection shall be provided for
isolation and polarization transformers, including a
6.1 Electrical components installed in compart-
bank of two or three Single-Phase transformers oper-
ments which may contain explosive gases shall be
ating as a unit. Esch transformer shall be protected
ignition-protected in accordance with ISO 8846 and
by an individual overcurrent device on the Primat-y
shall be located in accordance with ISO 9094.
side, rated at not more than 125 % of the rated pri-
mary current of the transformer.
6.2 Craft with LPG Systems shall have ignition-
7.7 Branch circuits
protected electrical components located in accord-
ante with ISO 10239.
7.7.1 The live conductor of each branch circuit in a
polarized System shall be provided with overcurrent
7 Overcurrent protection
protection, i.e. fuse or circuit breaker, at the Point of
connection to the main Panel board bus.
7.1 A manually reset trip-free circuit breaker shall
7.7.2 Live and neutral conductors of each branch
be installed within 0,5 m of the Source of power for
circuit in unpolarized Systems shall be provided with
each circuit or conductor of the System or, if imprac-
overcurrent protection by double-pole circuit breakers
tical, the conductor shall be contained within a pro-
at the Point of connection to the main Panel board
tective covering for its entire length from the Source
bus.
of power to the circuit breaker, such as a junction box,
control box, enclosed Panel board or within conduit
or cable trunking. For main supply circuits to Panel
8 Ground fault protection/Earth leakage
boards, a manually reset trip-free circuit breaker shall
protection
be installed within one-half hull length of the craft’s
shore-power cable connection, generator or inverter
8.1 GFCI and RCD breakers shall be of the trip-free
terminals.
tY Pe.
7.2 In unpolarized Systems, double-pole circuit
8.2 The main supply circuit shall be equipped with
breakers opening both live and neutral conductors are
a double pole GFCI(RCD) breaker having a maximum
required.
nominal trip sensitivity of 30 mA and 100 ms maxi-
mum trip time.
7.3 Overcurrent protection devices for motor loads
shall have a predetermined value of current flow con- 8.3 The GFCI (RCD) device shall have an internal
sistent with demand load characteristics of the pro- circuit for manual testing of the trip function.
4
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0 ISO
ISO 13297:1995(E)
exposed to intermittent immersion shall be in
8.4 GFCI(RCD) double-pole receptacle devices may
IEC 529-IP 56 enclosures as a minimum.
be installed as part of a convenience outlet instal-
lation, either in Single-outlet applications or in multiple
“feed through” installations.
11.2 Conductors
...
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