IEC 60092-504:2016

IEC 60092-504 ®
Edition 4.0 2016-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –
Part 504: Automation, control and instrumentation

Installations électriques à bord des navires –
Partie 504: Automatisation, commande et instrumentation

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IEC 60092-504 ®
Edition 4.0 2016-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –

Part 504: Automation, control and instrumentation

Installations électriques à bord des navires –

Partie 504: Automatisation, commande et instrumentation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.60 ISBN 978-2-8322-3622-2

– 2 – IEC 60092-504:2016 © IEC 2016
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references. 10
3 Terms and definitions . 12
4 General requirements . 15
4.1 Dependability . 15
4.2 Safety . 15
4.3 Segregation . 15
4.4 Performance . 15
4.5 Usability . 15
4.6 Integration . 15
4.7 Development activities . 15
5 Environmental type testing parameters . 16
5.1 General . 16
5.2 Performance . 16
6 Design . 22
6.1 Environmental and supply conditions . 22
6.2 Circuit design . 23
6.3 Mutual effects . 23
6.4 Electrical subdivision . 23
6.5 Signal level . 23
6.6 Power supply . 23
6.6.1 Independent supplies . 23
6.6.2 Capacity . 23
6.6.3 Protection . 23
7 Construction and materials . 24
7.1 Adjustments . 24
7.2 Accessibility . 24
7.3 Replacement . 24
7.4 Non-interchangeability . 24
7.5 Cooling . 24
7.6 Mechanical load on connectors . 24
7.7 Mechanical features of cabinets . 24
7.8 Shock and vibration absorbers . 25
7.9 Internal wiring . 25
7.10 Cable connections . 25
8 Installation and ergonomics . 25
8.1 General . 25
8.1.1 Layout . 25
8.1.2 Compatibility . 25
8.1.3 Labelling . 25
8.1.4 Labels . 25
8.1.5 Display colours . 26
8.1.6 Illumination . 26
8.1.7 Protection against fluid leakage . 26

8.1.8 Protection from condensation . 26
8.1.9 External cables and wiring . 26
8.2 Sensors . 26
8.2.1 Location of sensors . 26
8.2.2 Temperature sensors . 26
8.2.3 Pressure sensors . 26
8.2.4 Water level detectors on bulk carriers . 26
8.2.5 Enclosure . 27
8.2.6 Testing and calibration . 27
8.2.7 Presentation of information. 27
8.3 Controls . 27
8.3.1 Remote controls . 27
8.3.2 Man-machine interface . 28
8.4 Alert systems . 28
9 Specific installations . 28
9.1 Fire safety systems . 28
9.2 Bilge systems . 28
9.3 Machinery alert installations . 28
9.3.1 General . 28
9.3.2 Alert requirements . 29
9.3.3 Display of information . 29
9.3.4 Supply arrangements . 30
9.3.5 Design . 30
9.4 Power management systems . 31
9.4.1 General . 31
9.4.2 Automatic starting and stopping of main power supply equipment . 32
9.4.3 Heavy load request and power reserve calculation . 33
9.4.4 Black-out recovery . 33
9.4.5 Load sharing and frequency control . 33
9.4.6 Shut-down of diesel engine . 34
9.4.7 Automatic disconnection of non-essential consumers . 34
9.4.8 Design requirements of power management systems (PMSs) . 34
9.5 Automatic starting installations for electrical motor-driven auxiliaries . 35
9.5.1 General . 35
9.5.2 Automatic sequence starting . 35
9.5.3 Starting installations for stand-by auxiliaries . 35
9.5.4 Control voltages . 36
9.5.5 Manual control . 36
9.5.6 Mechanically driven auxilaries in low speed range . 36
9.5.7 Mechanically driven auxilaries . 36
9.5.8 Sensors . 36
9.6 Machinery control installations . 36
9.6.1 General . 36
9.6.2 General requirements . 37
9.6.3 Transfer of control . 37
9.6.4 Remote control of propulsion machinery from the bridge . 37
9.6.5 Indicators for remote control of machinery . 38
9.6.6 Manual override . 38
9.7 Machinery protection and safety systems . 39

– 4 – IEC 60092-504:2016 © IEC 2016
9.7.1 General . 39
9.7.2 General requirements . 39
9.8 Bow, inner, side shell and stern doors . 39
9.8.1 Application . 39
9.8.2 Remote control . 40
9.8.3 Indicator system . 40
9.8.4 Mode selection . 40
9.8.5 Failsafe . 40
9.8.6 Testing . 40
9.8.7 Independence . 40
9.8.8 Display . 40
9.8.9 Sensors . 40
9.8.10 Television surveillance . 41
9.8.11 Water leakage detection . 41
9.8.12 Drainage alarm . 41
9.8.13 Control location . 41
9.9 Power-operated watertight doors . 41
9.9.1 General . 41
9.9.2 Indications . 41
9.9.3 Alarm . 41
9.9.4 Closure rate . 42
9.9.5 Power supply . 42
9.9.6 Dedicated circuits . 42
9.9.7 Location of equipment . 42
9.9.8 Enclosures . 42
9.9.9 Leakage . 43
9.9.10 Independent circuits . 43
9.9.11 Failure of alarm circuits . 43
9.9.12 Failure of control circuits . 43
9.9.13 Power supply monitoring . 43
9.9.14 Mode selection . 43
9.9.15 Indication on navigation bridge . 43
9.9.16 Remote opening . 43
9.10 Public address systems on passenger ships . 44
9.10.1 General . 44
9.10.2 Override . 44
9.10.3 Operation . 44
9.10.4 Emergency broadcast. 44
9.10.5 Level adjustment . 44
9.10.6 Minimum sound level . 44
9.10.7 Interference . 44
9.10.8 Fault tolerance . 44
9.10.9 Protection . 44
9.10.10 Fire zones . 44
9.10.11 Segregation . 45
9.10.12 Power supplies . 45
9.10.13 Cabling . 45
10 Computer based systems . 45
10.1 General . 45

10.2 General requirements . 45
10.3 System categories . 45
10.4 System configuration . 47
10.4.1 General . 47
10.4.2 Power supply . 47
10.4.3 Hardware . 48
10.4.4 Software . 48
10.4.5 Data communication links . 48
10.4.6 Wireless data communication . 48
10.4.7 Network/integration of systems . 49
10.4.8 User interface . 49
10.4.9 Input devices . 49
10.4.10 Output devices . 50
10.4.11 Graphical user interface . 50
10.5 Protection against modification and loss of data . 50
10.6 Software maintenance . 50
10.7 Remote access . 51
10.7.1 General . 51
10.7.2 Remote software maintenance . 51
10.8 Documentation . 51
10.8.1 General . 51
10.8.2 Hardware . 51
10.8.3 System functional description . 52
10.8.4 Software . 52
10.8.5 User interface . 53
10.8.6 Test and evidence . 53
11 Additional requirements for periodically unattended machinery spaces or for
reduced attendance . 55
11.1 General . 55
11.2 Fire precautions . 55
11.3 Protection against flooding . 55
11.4 Control of propulsion machinery . 55
11.5 Alarm system and engineers’ alarm . 55
11.6 Protection (safety) systems . 55
11.7 Machinery, boiler and electrical installations . 55
12 Commissioning and testing . 55
12.1 Tests of completed installation . 55
12.2 Operational tests . 56
13 Documentation . 56
Bibliography . 57

Figure 1 – Typical designs of power management systems . 31

– 6 – IEC 60092-504:2016 © IEC 2016
Table 1 – Type tests, test procedures and severities . 16
Table 2 – System categories . 46
Table 3 – Examples of assignment to system categories . 47
Table 4 – Tests and evidence according to the system category . 54

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 504: Automation, control and instrumentation

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60092-504 has been prepared by IEC technical committee 18:
Electrical installations of ships and of mobile and fixed offshore units.
This fourth edition cancels and replaces the third edition published in 2001. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the part title has been changed, the term “Automation” was added;
b) the contents of the corrigendum of January 2011 have been included;
c) a new subclause 5.1 “General” with general requirements for type testing has been added;
d) Table 1 contents aligned with current version of document IACS Req. 1991/Rev. 5, 2006;
e) the revised IMO Resolution A.1021(26), Code on alerts and indicators:2009 has been
taken into account;
– 8 – IEC 60092-504:2016 © IEC 2016
f) IMO Resolution MSC.302(87) has been taken into account. As a consequence, the term
“alert” has been used where the generic term applies. This concerns, in particular, the text
in 8.4 and 9.3;
g) a new subclause 8.2.4: The revised IMO Resolution MSC.145(77), Performance standards
for water level detectors on bulk carriers:2003 has been taken into account;
h) subclause 9.1 about fire detection and alarm systems has been completely revised, IMO
Resolution MSC.98(73) (FSS Code) with amendment MSC.292(87): 2010 has been taken
into account;
i) a new subclause 9.2 “Bilge systems” has been added;
j) the subclauses 9.4 “Automatic control installations for electrical power supply” and 9.5
“Automatic starting installations for electrical motor-driven auxiliaries” have been
completely revised;
k) Clause 10 “Computer based systems” has been completely revised;
l) a new subclause 10.3.6 about wireless data communication has been added;
m) a new subclause 10.5 about remote access has been added.
The text of this standard is based on the following documents:
FDIS Report on voting
18/1539/FDIS 18/1545/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60092 series, under the general title Electrical installations in
ships, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
IEC 60092 forms a series of international standards for electrical installations in sea-going
ships, incorporating good practice and coordinating, as far as possible, existing rules.
These standards form a code of practical interpretation and amplification of the requirements
of the International Convention for the Safety of Life at Sea, a guide for future regulations
which may be prepared and a statement of practice for use by ship owners, shipbuilders and
appropriate organizations.
– 10 – IEC 60092-504:2016 © IEC 2016
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 504: Automation, control and instrumentation

1 Scope
This part of IEC 60092 specifies electrical, electronic and programmable equipment intended
for automation, control, monitoring, alert, and safety and protection systems for use in ships.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts), International Electrotechnical Vocabulary (IEV) (available at
www.electropedia.org)
IEC 60068-2-1, Environmental testing – Part 2: Tests – Test A: Cold
IEC 60068-2-2, Environmental testing – Part 2: Tests – Test B: Dry heat
IEC 60068-2-6, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-30, Environmental testing – Part 2: Tests – Test Db: Damp heat, cyclic
(12 h + 12 h cycle)
IEC 60068-2-52, Environmental testing – Part 2: Tests – Test Kb: Salt mist, cyclic (sodium
chloride solution)
IEC 60092-101:1994, Electrical installations in ships – Part 101: Definitions and general
requirements
IEC 60092-101:1994/AMD1:1995
IEC 60092-201:1994, Electrical installations in ships – Part 201: System design – General
IEC 60092-202, Electrical installations in ships – Part 202: System design – Protection
IEC 60092-302, Electrical installations in ships – Part 302: Low-voltage switchgear and
controlgear assemblies
IEC 60092-501, Electrical installations in ships – Part 501: Special features – Electric
propulsion plant
IEC 60092-502, Electrical installations in ships – Part 502: Tankers – Special features
IEC 60447, Basic and safety principles for man-machine interface, marking and
identification − Actuating principles
IEC 60529, Degrees of protection provided by enclosures (IP Code)

IEC 60533, Electrical and electronic installations in ships – Electromagnetic compatibility
(EMC) – Ships with a metallic hull
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 4-2: Testing and measuring
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement
techniques – Voltage dips, short interruptions and voltage variations immunity tests
IEC 61355-1, Classification and designation of documents for plants, systems and
equipment − Part 1: Rules and classification tables
IEC 62443 (all parts), Industrial communication networks − Network and system security
ABS publication, Guidance notes on the application of ergonomics to marine systems
(2014-02)
CISPR 16-1-1, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus
CISPR 16-2-1, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 2-1: Methods of measurement of disturbances and immunity – Conducted
disturbance measurements
EN 54 (all parts), Fire detection and fire alarm systems
IMO Resolution A.1021(26):2009, Code on alerts and Indicators
IMO Resolution MSC.302(87):2010, Adoption of performance standards for bridge alert
management (BAM)
IMO Resolution A.813(19):1995, General Requirements for Electromagnetic Compatibility
(EMC) for all Electrical and Electronic Ship's Equipment
IMO Resolution MSC.98(73):2000, Adoption of the international code for fire safety systems
(FSS Code)
SOLAS, International Convention for the Safety of Life at Sea (SOLAS):1974, consolidated
edition, 2009
– 12 – IEC 60092-504:2016 © IEC 2016
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050 as well as
the following apply.
3.1
accuracy
quality which characterizes the closeness of a measured value to the corresponding true
value
3.2
administration
Government of the State whose flag the ship is entitled to fly
[SOURCE: SOLAS, Chapter I, Regulation 2, Definition (b)]
3.3
availability
ability of an item to be in a state to perform a required function under given conditions at a
given time interval, assuming that the required external resources are provided
3.4
centralized control
control of all operations of a controlled system from one central control position
3.5
computer based system
system that consists of one or more programmable electronic devices with their connections,
peripherals and software necessary to carry out automatically specified functions
Note 1 to entry: The following types of programmable devices could form part of a computer system: main-frame,
mini-computer, micro-processor-based computer, programmable logic controller.
3.6
control functions
functions intended to regulate the behaviour of equipment or systems
3.7
control position
control station
group of control devices by which an operator can control the performance of a machine,
apparatus, process or assembly of machines and apparatus
Note 1 to entry: A control position will generally enable an operator to verify the achievement of the desired
conditions by means of an appropriate monitoring system
3.8
dependability
extent to which a system can be relied upon to perform its intended functions under defined
operational and environmental conditions
3.9
essential services
functions necessary for the propulsion, steering and safety of the ship and its personnel
3.10
failsafe
design property of an item which prevents its failures from resulting in critical faults

Note 1 to entry: The safe state, according to the application, will be predetermined in terms of priority for the
safety of the ship and may generally be taken as the least critical one for the main components and auxiliaries of,
for example, the propulsion/manoeuvring plant.
[SOURCE IEC 60050-821: 1998, 821-01-10, modified – a note has been added.]
3.11
function
elementary operation performed by the system which, in conjunction with other elementary
operations (system functions), enables the system to perform a task
3.12
integrity
capability of a system to satisfactorily perform the required functions under all the stated
conditions within a stated period of time
3.13
machinery control room
room or spaces where centralized controls and measuring and monitoring equipment for main
equipment and essential auxiliary machinery are located together with the appropriate means
of communication
3.14
maintainability
ability of an item under given conditions of use, to be retained in, or restored to, a state in
which it can perform a required function, when maintenance is performed under given
conditions and using stated procedures and resources
Note 1 to entry: The term "maintainability" is also used as a measure of maintainability performance.
3.15
monitoring functions
functions intended to collect data from equipment and systems for the purpose of display and
recording
3.16
protection functions
functions intended to prevent damage to equipment or systems in the event of a fault
3.17
reliability (performance)
ability of an item to perform a required function under given conditions for a given time
interval
Note 1 to entry: It is generally ass
...