INTRODUCTION
PRELIMINAR STUDIES AND CONSIDERATIONS
MAINTENANCE AND DAMAGE PREVENTION
WORK ON BASIC VEHICLE
MOUNTING AND CONSTRUCTION
POWER TAKE-OFF
ELECTRIC AND ELECTRONIC SYSTEMS
APPENDIX
V1.0, February 2015
Body Builder Manual Part II, Specific Book LCV
213
7.1
Electromagnetic compatibility (EMC)
Before proceeding with the installation of an electrical, electromechanical or elec
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tronic device in the vehicle, electromagnetic compatibility must be checked.
Electromagnetic compatibility (EMC) is the ability of a system not to cause electro
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magnetic interference to other equipment. At the same time, it has to be insensitive
to the emissions caused other systems that might affect it.
Electromagnetic interference (EMI) can be defined as the issue of energy that de
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grades or adversely affects the quality of a signal or the operation of a system.
HMC performs this check with the equipment installed as standard on all vehicles.
The original setting must not be changed, or incompatibilities could occur between
devices.
If the Body Builder wants to install other equipment in the vehicle afterwards, it
should carry out exactly the same check, certifying the correct operation of this
equipment by type certificates, which will recognise that products are in full com
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pliance with standards and regulations.
Electronic systems that are going to be installed in the vehicle must be approved ac
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cording to Directive 2004/108/EC, meet the requirements of the regulation ECE R10
and have the "e" marking.
The difference between the "e"-marking and the "CE" marking is based on the pro
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cedure for obtaining it.
The "CE" marking is based on the declaration of compliance of the staff responsible
for placing the product on the market (self-certification), while the "e" marking in
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volves a third party (certification). The test relating to obtaining the "e" marking is
performed by an authorised laboratory.
NOTICE
There are some international regulatory agencies that provide additional informa
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tion on this topic, such as:
- International special committee on radio interference (CISPR):
CISPR 12, 21, 25 - Interference relating to vehicles and motor machines.
- International Organisation for Standardisation (ISO):
ISO 7637, 10605, 11451, 11452 - Interference relating to road vehicles.
- German Institute for Standardisation (DIN):
DIN EN 55012, 55025 - Interference relating to vehicles, boats and internal
combustion engines.