IEC 60092-504:2001

INTERNATIONAL IEC
STANDARD
60092-504
Third edition
2001-03
Electrical installations in ships –
Part 504:
Special features – Control and instrumentation
Installations électriques à bord des navires –
Partie 504:
Caractéristiques spéciales – Conduite et instrumentation
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INTERNATIONAL IEC
STANDARD
60092-504
Third edition
2001-03
Electrical installations in ships –
Part 504:
Special features – Control and instrumentation
Installations électriques à bord des navires –
Partie 504:
Caractéristiques spéciales – Conduite et instrumentation
© IEC 2001 ⎯ Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
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International Electrotechnical Commission
For price, see current catalogue

– 2 – 60092-504 © IEC:2001(E)
CONTENTS
FOREWORD . 4
INTRODUCTION .5
1 Scope . 6
2 Normative references . 6
3 Definitions. 7
4 General requirements. 9
4.1 Dependability . 9
4.2 Safety . 10
4.3 Segregation . 10
4.4 Performance . 10
4.5 Usability. 10
4.6 Integration . 10
4.7 Development activities . 10
5 Environmental type testing parameters . 11
6 Design . 18
6.1 Environmental and supply conditions . 18
6.2 Circuit design. 18
6.3 Mutual effects . 18
6.4 Electrical subdivision. 18
6.5 Signal level . 18
6.6 Power supply . 18
7 Construction and materials . 19
7.1 Adjustments. 19
7.2 Accessibility . 19
7.3 Replacement. 19
7.4 Non-interchangeability. 19
7.5 Cooling . 19
7.6 Mechanical load on connectors . 19
7.7 Mechanical features of cabinets . 20
7.8 Shock and vibration absorbers . 20
7.9 Internal wiring . 20
7.10 Cable connections. 20
8 Installation and ergonomics . 20
8.1 General. 20
8.2 Sensors . 21
8.3 Presentation of information . 22
8.4 Controls . 22
8.5 Alarm systems . 23

60092-504 © IEC:2001(E) – 3 –
9 Specific installations. 23
9.1 Fire protection control installations . 23
9.2 Machinery alarm installations . 28
9.3 Automatic control installations for electrical power supply . 30
9.4 Automatic starting installations for electrical motor-driven auxiliaries . 33
9.5 Machinery control installations. 35
9.6 Machinery protection (safety) systems . 37
9.7 Bow, inner, side shell and stern doors . 38
9.8 Power-operated watertight doors . 40
9.9 Public address systems on passenger ships . 42
10 Computer-based systems . 43
10.1 General. 43
10.2 System safety . 44
10.3 System configuration. 44
10.4 System integration . 45
10.5 Power supply . 45
10.6 Data communications links. 45
10.7 User interface . 46
10.8 Alarm, control and safety functions. 48
10.9 Software . 49
10.10 Tests . 50
10.11 Documentation. 51
11 Additional requirements for periodically unattended machinery spaces or for
reduced attendance. 53
11.1 Introduction. 53
11.2 General requirements. 53
11.3 Fire precautions . 53
11.4 Protection against flooding . 54
11.5 Control of propulsion machinery . 54
11.6 Alarm system . 54
11.7 Protection (safety) systems . 55
11.8 Special requirements for machinery, boiler and electrical installations. 55
12 Commissioning and testing. 56
12.1 Tests of completed installation . 56
12.2 Operational tests. 56
13 Documentation. 57
13.1 Apparatus description. 57
13.2 Circuit diagrams. 57

– 4 – 60092-504 © IEC:2001(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 504: Special features –
Control and instrumentation
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
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