This International Standard specifies minimum requirements for emission, immunity and
performance criteria regarding electromagnetic compatibility (EMC) of electrical and electronic
equipment for ships with metallic hull. Additional or divergent requirements for ships with non-
metallic hull will be given in a future International Standard (IEC 62742).
This International Standard assists in meeting the relevant EMC requirements as stated in
SOLAS 74, Chapter IV, Regulation 6 and Chapter V, Regulation 17. Reference to this
International Standard is made in IMO Resolution A.813(19).
The normative part of this International Standard has been prepared as a product family EMC
standard. 
This International Standard further gives guidelines and recommendations on the measures to
achieve EMC in the electrical and electronic installations of the following equipment groups: 
a) group A: maritime navigation and radio communication equipment and systems;
b) group B: power generation and conversion equipment;
c) group C: equipment operating with pulsed power;
d) group D: switchgear and controlgear;
e) group E: intercommunication and signal processing equipment and control systems;
f) group F: non-electrical items and equipment;
g) group G: integrated systems.
The basic EMC standard for groups A and C is IEC 60945. The EMC requirements according to
IEC 60945 apply additionally for
• bridge mounted equipment;
• equipment in close proximity to receiving antennas;
• equipment capable of interfering with the safe navigation of the ship and with radio
communication.
Effects on humans, like exposure to electromagnetic fields, and basic safety requirements
such as protection against electric shock and dielectric strength tests for equipment are not
within the scope of this International Standard.dition 3.0 2015-08 INTERNATIONAL STANDARD Electrical and electronic installations in ships – Electromagnetic compatibility (EMC) – Ships with a metallic hull IEC 60533:2015-08(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec