Mercedes-Benz Body & Equipment Guideline for Metris - BM 447, Version November 27, 2015.
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Please observe the revision notes compared to 09/18/2015 ! Only print out complete sections of the current version!
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9.2 Electromagnetic compatibility (EMC)
9 Electrical system
9.2
Electromagnetic compatibility (EMC)
Electromagnetic compatibility describes the ability
of an electrical system to act neutrally in the vicinity
of other systems when operating at full function. The
system in question does not interfere with any of the
active systems in the vicinity, nor does it suffer any
interference.
Electrical interference occurs in vehicle electri-
cal circuits because of the various consumers. At
Mercedes-Benz, electrical and electronic components
installed at the factory are checked for their electro-
magnetic compatibility in the vehicle. If subsequent
modifications are made, this may cause a reduction in
comfort in some cases (e.g. radio noise).
When retrofitting electric or electronic systems, they
must be tested for electromagnetic compatibility and
this must be documented.
The equipment must be electromagnetically compati-
ble.
The notes under 9.4.4 “Connecting additional electrical
consumers” (
Page 104) and 5.5 “Threshold val-
ues for electrics/electronics” (
Page 53) must be
observed.
Information about EMC can be obtained from the fol-
lowing rules and standards:
•
CISPR 12
•
CISPR 25
•
DIN EN 55012
•
DIN EN 55025
•
DIN 40839
•
ISO 7637
•
ISO 10605
•
ISO 11451
•
ISO 11452
•
MBN 10284