Electrical and electronic installations in ships - Electromagnetic compatibility (EMC) - Ships with a non-metallic hull

IEC 62742:2021 specifies minimum requirements for emission, immunity and performance criteria regarding electromagnetic compatibility (EMC) of electrical and electronic equipment for ships with non-metallic hull.
NOTE Requirements for metallic hull are given by IEC 60533. This documents acts an extension of IEC 60533 to cater for EMC effects on non-metallic hull.
This document further gives guidance on how to achieve electromagnetic compatibility (EMC) on ships whose hull (surface) is made from non-metallic material and can also be useful for ships with hull comprising of a metallic hull, but with non-metallic superstructure or components.
This document assists in meeting the requirements of IMO resolution A.813(19).
It does not specify basic safety requirements such as protection against electric shock and dielectric tests for equipment. Electromagnetic effects on human beings are not the subject of this document.

Technique des impulsions et appareils. Première partie: Termes et définitions concernant les impulsions

Donne les définitions fondamentales d'usage général dans la technologie des impulsions dans le temps. Elle définit les termes relatifs aux phénomènes impulsionnels et aux caractéristiques des impulsions qui sont a priori nécessaires pour assurer une communication efficace des informations techniques et rédiger les normes relatives aux méthodes de mesure des caractéristiques des impulsions, aux appareils à impulsions et aux appareils qui utilisent la technique des impulsions.

Impulzna tehnika in naprave – 1. del: Izrazi in definicije impulzov

General Information

Status
Published
Publication Date
04-Aug-2021
Current Stage
PPUB - Publication issued
Start Date
27-Aug-2021
Completion Date
05-Aug-2021

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Standards Content (Sample)

SLOVENSKI SIST IEC 60469-1:2005

STANDARD
junij 2005
Impulzna tehnika in naprave – 1. del: Izrazi in definicije impulzov
Pulse techniques and apparatus – Part 1: Pulse terms and definitions
ICS 01.040.17; 17.080 Referenčna številka
SIST IEC 60469-1:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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NORME
CEI
INTERNATIONALE IEC
60469-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1987-12
Techniques des impulsions et
appareils
Première partie:
Termes et définitions concernant les impulsions
Pulse techniques and apparatus
Part 1:
Pulse terms and definitions
© IEC 1987 Droits de reproduction réservés — Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. 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
CODE PRIX
Commission Electrotechnique Internationale
U
PRICE CODE
International Electrotechnical Commission
IEC MemnyHapomian 3nenrporexHwiecnan HoMHccein
Pour prix, voir catalogue en vigueur
• • For price, see current catalogue

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469-1 © I E C 1987 - 3 -
CONTENTS
Page
FOREWORD 5
PREFACE 5
Clause
1. General 7
1.1 Scope 7
1.2 Object 7
2. General terms 7
2.1
Co-ordinate system 7
2.2 Wave, pulse and transition 7
2.3 Waveform, epoch and feature 9
2.4
Qualitative adjectives 9
2.5
Quantitative adjectives 11
2.6 Time-related definitions 17
2.7 Reference lines and points 17
2.8 Miscellaneous 19
3. The single pulse waveform 21
3.1
Major pulse waveform features 21
3.2 Magnitude characteristics and references 21
3.3 Time characteristics and references 23
3.4 Other pulse waveform features 25
4.
The single transition waveform 25
4.1 Step 25
4.2 Ramp 25
5. Complex waveforms 27
5.1 Combinations of pulses and transitions 27
5.2 Waveforms produced by magnitude superposition 27
5.3 Waveforms produced by continuous time superposition of simpler waveforms 27
5.4 Waveforms produced by non-continuous time superposition of simpler waveforms 29
5.5 Waveforms produced by operations on waveforms 31
6. Time relationships between different pulse waveforms 31
7. Distortion, jitter and fluctuation 33
7.1 Distortion 33
7.2 Qualitative distortion terms 33
7.3 Jitter and fluctuation 35
8. Miscellaneous pulse terms 35
8.1 Operations on a pulse 35
8.2 Operations by a pulse 37
8.3 Operations involving the interaction of pulses 39
8.4 Logical operations with pulses 39
FIGURES 40
INDEX 47

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469-1 © I E C 1987 5 —
INTERNATIONAL ELECTROTECHNICAL COMMISSION
PULSE TECHNIQUES AND APPARATUS
Part 1: Pulse terms and definitions
FOREWORD
The formal decisions or agreements of the I E C on technical matters, prepared by Technical Committees on which all
1)
the National Committees having a special interest therein are represented, express, as nearly as possible, an international
consensus of opinion on the subjects dealt with.
2) They have the form of recommendations for international use and they are accepted by the National Committees in that
sense.
In order to promote international unification, the I E C expresses the wish that all National Committees should adopt
3)
the text of the I E C recommendation for their national rules in so far as national conditions will permit. Any divergence
between the I E C recommendations and the corresponding national rules should, as far as possible, be clearly indicated
in the latter.
PREFACE
This standard has been prepared by Sub-Committee 66A: Generators, of I E C Technical Com-
mittee No. 66: Measuring Equipment for Electronic Techniques.
The text of this standard which replaces the first edition is based upon the following documents:
Six Months' Rule Report on Voting
66A(CO)38
66A(CO)36
Full information on the voting for the approval of this standard can be found in the Voting
Report indicated in the above table.
The following I E C publications are quoted in this standard:
Publications Nos. 351 (1976): Expression of the Properties of Cathode-ray Oscilloscopes.
469-2 (1987): Pulse Techniques and Apparatus,
Part 2: Pulse Measurement and Analysis, General Considerations.

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469-1 © I E C 1987 — 7
PULSE TECHNIQUES AND APPARATUS
Part 1: Pulse terms and definitions
1. General
1.1 Scope
This stan
...

IEC 62742
®

Edition 1.0 2021-08
INTERNATIONAL
STANDARD



Electrical and electronic installations in ships – Electromagnetic
compatibility (EMC) – Ships with a non-metallic hull
IEC 62742:2021-08(en)

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IEC 62742

®


Edition 1.0 2021-08




INTERNATIONAL



STANDARD



















Electrical and electronic installations in ships – Electromagnetic

compatibility (EMC) – Ships with a non-metallic hull


























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.100; 47.020.60 ISBN 978-2-8322-1007-5




  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC 62742:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 9
5 Electromagnetic environment (EME) . 9
5.1 General . 9
5.2 Susceptibility study . 10
5.3 Unintentional radiators installed near VHF antennas . 10
6 Shielding . 10
6.1 General . 10
6.2 Function of shielding .
...

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