SIST EN ISO 25197:2020

SLOVENSKI STANDARD
oSIST prEN ISO 25197:2019
01-januar-2019
0DODSORYLOD(OHNWULþQLHOHNWURQVNLUHJXODFLMVNLVLVWHP]DNUPDUMHQMHSUHVWDYOMDQMH
LQSRJRQ,62',6
Small Craft - Electrical/electronic control system for steering, shift and throttle (ISO/DIS
25197:2018)
Kleine Wasserfahrzeuge - Elektrische/elektronische Regelungssysteme für Steuerung,
Schaltung und Antrieb (ISO/DIS 25197:2018)
Petits navires - Système électrique/électronique pour le contrôle de la direction, de
l'inverseur et des gaz (ISO/DIS 25197:2018)
Ta slovenski standard je istoveten z: prEN ISO 25197
ICS:
47.020.60 (OHNWULþQDRSUHPDODGLMLQ Electrical equipment of ships
NRQVWUXNFLMQDPRUMX and of marine structures
47.080 ýROQL Small craft
oSIST prEN ISO 25197:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 25197:2019

---------------------- Page: 2 ----------------------
oSIST prEN ISO 25197:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 25197
ISO/TC 188/SC 2 Secretariat: SIS
Voting begins on: Voting terminates on:
2018-11-06 2019-01-29
Small craft — Electrical/electronic control system for
steering, shift and throttle
Petits navires — Système électrique/électronique pour le contrôle de la direction, de l'inverseur et des gaz
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 25197:2018(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 25197:2019
ISO/DIS 25197:2018(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
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General requirements . 5
5 Control head . 6
6 Command station transfer . 7
7 Portable helm station controls . 8
8 Dynamic-positioning system (DPS) . 8
9 Failure modes and responses . 9
9.1 Loss of operation . 9
9.2 Loss of computer command logic . 9
10 Test requirements . 9
10.1 General test requirements . 9
10.2 Steering .10
10.3 Control lever(s) for separate or combined shift and throttle functions .10
10.4 Joystick .11
10.5 Environmental-test requirements.12
10.5.1 General.12
10.5.2 Salt mist tests .13
10.5.3 Damp heat — Cyclic .13
10.5.4 Damp heat — Steady state .13
10.5.5 High-temperature test — Operation .14
10.5.6 High-temperature test — Storage .14
10.5.7 Low-temperature test — Operation.14
10.5.8 Low-temperature test — Storage .14
10.6 Vibration tests and requirements .15
10.7 Shock testing .15
10.8 Drop test .15
10.9 Resistance to UV .16
10.10 Electromagnetic compatibility (EMC).16
10.10.1 Electromagnetic interference tests .16
10.10.2 EMC performance criteria.16
10.10.3 Immunity to conducted low-frequency interference .17
10.10.4 Immunity to conducted radio-frequency interference .17
10.10.5 Immunity to radiated radio-frequency fields .17
10.10.6 Immunity to fast, low-energy transients (bursts) .18
10.10.7 Immunity to slow high-energy transients (surges) .18
10.10.8 Immunity to electrostatic discharge (ESD) .19
10.10.9 Immunity to power supply variation .19
10.10.10 .
Radiated emissions .19
10.10.11 .
Conducted emissions .19
10.11 Compass safe distance .19
10.12 Insulation resistance .19
11 Labelling .19
12 Instructions to be included in the owner's manual.20
© ISO 2018 – All rights reserved iii

---------------------- Page: 5 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered .21
iv © ISO 2018 – All rights reserved

---------------------- Page: 6 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(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 ISO/TC 188, Small craft, Subcommittee SC 2,
Engines and propulsion systems.
This second edition cancels and replaces the first edition (ISO 25197:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Terms and definitions has been subjected to a revision coherently to other standard definitions;
new voices, such as input and output devices, have been introduced.
— Picture on different figures has been reviewed to clarify the concepts illustrated.
— Portable helms clauses has been reviewed in order to make them coherent when an electric
propulsion motor is used.
— Sub clause 9.1 has been reviewed in order to include the fail-safe mode and the alarm policy.
— On sub-clause 10.1 there is the major change on this standard: the request of using three different
samples for all tests (except for EMC test) has been deleted because it would have involved in a great
expense without having significant improvement. Only one sample is used for all test described on
the next sub clauses.
— Life test on Joystick described on 10.4 has been reviewed and made closer to reality.
— Table 1 on sub clause 10.5.1 has been updated introducing the column “immersion” to handle test on
immerged components.
— On 10.5.2, all ways to conduct the salt mist test have been equalized.
— On 10.7, shock test has been revised.
— On 10.8 free fall test has become drop test with the addiction of the UV test.
© ISO 2018 – All rights reserved v

---------------------- Page: 7 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

— UV test, described on sub clause 10.9, has been clarified.
— On all 10.10 sub clause there are many changes due to the renewing of standard IEC 60533 and the
forthcoming release of the standard IEC 62742; to avoid any direct link to those standards, all test
previously required by IEC 60533 have been embedded and all standard mentioned has been added
to normative reference list.
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.
vi © ISO 2018 – All rights reserved

---------------------- Page: 8 ----------------------
oSIST prEN ISO 25197:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 25197:2018(E)
Small craft — Electrical/electronic control system for
steering, shift and throttle
1 Scope
This International Standard establishes the requirements for design, construction and testing of
electrical/electronic steering, shift and throttle and dynamic position control systems, or combinations
thereof, on small craft of up to 24 m length of hull.
This International Standard excludes electric trolling motors
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 4892, Plastics — Methods of exposure to laboratory light sources
ISO 8846, Small craft — Electrical devices — Protection against ignition of surrounding flammable gases
ISO 8848, Small craft — Remote steering systems
ISO 10133, Small craft — Electrical systems — Extra-low-voltage d.c. installations
ISO 10240, Small craft — Owner’s manual
ISO 10592, Small craft — Hydraulic steering systems
ISO 11591, Small craft, engine-driven — Field of vision from helm position
ISO 13297, Small craft — Electrical systems — Alternating current installations
ISO 16750-2, Road vehicles — Environmental conditions and testing for electrical and electronic
equipment — Part 2: Electrical loads
ISO 16750-3, Road vehicles — Environmental conditions and testing for electrical and electronic
equipment — Part 3: Mechanical loads
ISO 16750-4, Road vehicles — Environmental conditions and testing for electrical and electronic
equipment — Part 4: Climatic loads
IEC 60068-2-27, Environmental testing — Part 2-27: Tests — Test Ea and guidance: Shock
IEC 60068-2-52, Environmental testing — Part 2-52: Tests — Test Kb: Salt mist, cyclic (sodium chloride
solution)
IEC 60092-507, Electrical installations in ships — Part 507: Small vessels
IEC 60945, Maritime navigation and radiocommunication equipment and systems — General requirements
— Methods of testing and required test results
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 2: Electrostatic discharge immunity test – Basic EMC publication
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 3: Radiated, radio frequency, electromagnetic field immunity test
© ISO 2018 – All rights reserved 1

---------------------- Page: 9 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 4: Electrical fast transient/burst immunity test – Basic EMC publication
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 5: Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 6: Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 8: Power frequency magnetic field immunity test – Basic EMC publication
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Section 11: Voltage dips, short interruptions and voltage variations immunity tests
IEC 61000-4, 16, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques –
Test for immunity to conducted, common mode disturbance in the frequency range 0 Hz to 150 KHz
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
electric/electronic steering system
all components, including CPU (central processing unit) and cable harnesses, from the manual steering
input device up to and including the device (actuator or electrical motor) regulating the rudder or
propulsion unit steering angle
Note 1 to entry: It includes the joystick and components, i.e. GPS antennas for dynamic positioning, if installed.
3.2
dynamic-positioning system
computer-controlled system to automatically maintain a craft's position and heading by using the
craft’s own propulsion systems with or without the assistance of bow or stern thrusters
3.3
electrical/electronic shift and throttle system
all components, including CPU (central processing unit) and cable harnesses, from the shift and throttle
input device up to and including the device controlling the shift and speed of engines
3.4
ignition-protected equipment
electrical equipment designed and tested for use in explosive atmospheres without igniting surrounding
flammable gases
3.5
accessible
capable of being reached for operation, inspection or maintenance without removal of permanent
structure of the craft
3.6
readily accessible
capable of being reached without the use of tools
2 © ISO 2018 – All rights reserved

---------------------- Page: 10 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

3.7
nominal voltage(s)
those commonly used voltages, such as 12 volts, 24 volts, or 36 volts DC
3.8
manoeuvring mode
reduced power mode for manoeuvring, determined by the manufacturer
3.9
cruising mode
power mode above manoeuvring mode up to full power, determined by the manufacturer
3.10
X axis
direction of a craft fore or aft, longitudinally
3.11
Y axis
direction of a craft port or starboard, transversely
3.12
Z axis
axis perpendicular to the X-Y plane
3.13
input device
device that transmits commands to a system
3.14
output device
device that operates from commands coming from an input device(s)
EXAMPLE electromechanical or electrohydraulic actuator.
3.15
control head
operator input device, other than a steering wheel, for the simultaneous control of steering and
propulsion
EXAMPLE Joystick, track-ball or slide levers.
3.16
control lever
operator input device for the control of thrust and/or propulsion
3.17
steering helm
operator input device for the control of steering
3.18
joystick
operator input device for the simultaneous control of thrust, steering and propulsion
3.19
helm station
location from which steering, propulsion and thrust can be controlled
3.20
multiple helm stations
more than one location in the boat from which steering, propulsion and thrust can be controlled
© ISO 2018 – All rights reserved 3

---------------------- Page: 11 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

3.21
command station
helm station location that is in active control
3.22
portable helm
helm providing a combination of shift or throttle or steering, not permanently affixed to the craft’s
structure, communicating with the system through wired or wireless means
3.23
propulsion
component or components of thrust that permit a craft’s movement in any direction
Note 1 to entry: Examples of propulsion-generating devices include outboards, stern drives, pod drives, jet
drives, inboards and thrusters.
3.24
radio frequency
RF
frequency within the range of frequencies suitable for utilization in radio communication
3.25
actuator
electromechanical, electropneumatic and/or electrohydraulic device that converts an electrical signal
into a mechanical displacement
3.26
thrust
propulsive force from craft’s propulsion system, including bow or stern thrusters or a combination
thereof in order to move or rotate the craft
3.27
wireless
mode of communication, monitoring and/or control through the use of electromagnetic, acoustic or
optical transmission through atmospheric space
3.28
damp area
area where moisture is either permanently or intermittently present
EXAMPLE Bilge, head, galley.
3.29
wet area
area exposed to weather
3.30
interior
protected area inside the craft
3.31
immersion
device whose purpose may imply a location in area totally or partially under water
3.32
EUT
equipment under test
3.33
performance criterion
standard by which the functional status of an EUT during and after testing is judged
4 © ISO 2018 – All rights reserved

---------------------- Page: 12 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

3.34
failure modes and effects analysis
FMEA
procedure in product development and operations development for analysis of potential failure modes
3.35
fail-safe mode
device or feature which, in the event of failure, responds in a way that will cause no harm, or minimize
the harm, to other devices and cause no danger, or minimize the danger, to personnel
3.36
trolling motor
electric propulsion unit that produces less than 500 Newtons thrust, that includes an electric motor,
propeller and controls
4 General requirements
4.1 All electronic/electrical components shall be designed to withstand a reversed-polarity connection
of the power leads. This shall not render the component inoperable when subsequently connected to the
power correctly.
NOTE Replacement of an external fuse, after reverse connection of power supply, is acceptable.
4.2 All electronic/electrical components shall be designed with reverse polarity protection from
internal surges.
4.3 DC systems shall comply with ISO 10133. AC systems shall comply with ISO 13297. An acceptable
alternative to ISO 10133 and ISO 13297 is given in IEC 60092-507.
4.4 The system shall be energized whenever the propulsion engine(s) are running.
4.5 The system, except for dynamic positioning and displays, shall be fully operational within five
seconds after being turned on (powered).
4.6 Multi-installed engine steering systems shall be redundant by virtue of the fact that they are both
mechanically and electrically independent of each other. A single device is allowed for control of multiple
engines (e.g. steering wheel, joystick)
4.7 Each helm station shall give a visual indication when active. A main steering position shall be
designated and meet the applicable requirements of ISO 11591, with the location included in the
owner’s manual.
4.8 Each helm station shall, by visible and/or audible means, alert the operator when the system
enters the fail-safe mode.
4.9 The sound pressure of an audible alarm 1 metre from the command station shall be at least
75 dB(A), but not greater than 85 dB(A). Systems incorporating a mute feature shall maintain the visual
alert as long as the failure persists.
If an audible-only alert system is utilized: muting of the alarm is not allowed.
4.10 Instructions for proper installation and use of the steering system shall be made available by the
manufacturer.
© ISO 2018 – All rights reserved 5

---------------------- Page: 13 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

4.11 Operational characteristics, instructions and warnings for proper use shall be described in the
owner’s manual and/or by on-product labelling.
4.12 With the exception of an optional temporary override for emergency situations, it shall only be
possible to start propulsion equipment in neutral.
NOTE This includes any equipment that drives the propeller or water-jet drive.
4.13 The steering, shift and throttle actuators shall react/adjust input on a physical input command
within 0,5 seconds.
4.14 Steering wheels shall comply with the requirements of ISO 8848.
4.15 Hydraulic systems shall comply with the requirements of ISO 10592.
4.16 Electrical components intended to be installed in petrol engine or petrol tank compartments shall
be ignition-protected in accordance with ISO 8846.
4.17 A risk identification/analysis, using an established method, shall be carried out for each system
design.
EXAMPLES Failure modes and effects analysis (FMEA), fault-tree analysis (FTA).
Risk identification and functional safety may be carried out as given in the relevant part of IEC 61508.
4.18 Systems that provide both cruising and manoeuvring modes shall provide an indication to the
operator at the command station of which mode the system is in, and shall not change modes without
input from the operator.
5 Control head
5.1 Control head operation is permitted for both cruising-mode and manoeuvring-mode operation.
6 © ISO 2018 – All rights reserved

---------------------- Page: 14 ----------------------
oSIST prEN ISO 25197:2019
ISO/DIS 25197:2018(E)

5.2 The control head position shall return to the neutral X, Y and Z axis when the operator’s grip is
released. See Figure 1.
Figure 1 — Craft behaviour on joystick movements
5.3 For operation in the cruising mode, when grip on control head is released, the engine need not
return to a low RPM or a manufacturer-determined idle state.
5.4 Releasing the control head in the manoeuvring mode to neutral position shall result in:
— a disengaged transmission or water-jet bucket in the neutral position;
and
— a manufacturer-determined idle state or electric motors in the stopped state.
5.5 The craft shall move in the same direction as the control head is oriented relative to the craft.
5.6 Portable helms shall clearly indicate their orientation relative to the craft.
5.7 If the control head includes a rotation function, the control head activation, clockwise o
...