Iveco EUROCARGO, Instructions Manual

Page: 199 / 226

EUROCARGO Euro 6
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ELECTRONIC SUB-SYSTEMS
ELECTRONIC SUB-SYSTEMS
5.7 ELECTRICAL SYSTEM: CURRENT INTERVENTIONS AND DRAWS
39
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Printed 603.95.747
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1st Ed. - Base 12/2013
191318
Figure 30
Shielding by means of a metal braid of a cable leading to an electronic component
Electromagnetic comparability
It is recommended that electrical, electro-mechanical and electronic devices which comply with the following immunity require-
ments for electromagnetic emissions, (both irradiated and conducted) are used.
The level of electromagnetic immunity of the electronic devices equipping the vehicle at a distance of 1 metre from the transmit-
ting aerial must be:
●
50 V/m immunity for devices performing secondary functions (not impacting on direct vehicle control), for frequencies vary-
ing from 20 MHz to 2 GHz;
●
100 V/m immunity for devices primary secondary functions (not impacting on direct vehicle control), for frequencies varying
from 20 MHz to 2 GHz;
The maximum excursion allowed for transition voltage with equipment powered by 24 V is +80 V measured on the terminals of
the artificial network (L.I.S.N.) if tested on the bench. Alternatively, if tested on the vehicle, the excursion must be read at the most
accessible point near to the conflicting device.
Note Devices powered by 24V must:
- be immune to interferences such as -600 V negative spikes, +100 V positive spikes, bursts of
±
200 V;
- operate correctly during the phase when voltage drops to 8 V for 40 ms and to 0 V for 2 ms;
- resist the load dump phenomena up to 58 V.
The maximum radiated emission levels measured at the bench and the levels of conducted emissions generated by devices and also
by 12 V power supplies are given in the following table: