Iveco EUROCARGO, Инструкция по эксплуатации

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52
EUROCARGO Euro 6
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ELECTRONIC SUB-SYSTEMS
ELECTRONIC SUB-SYSTEMS
5.7
ELECTRICAL SYSTEM: CURRENT INTERVENTIONS AND DRAWS
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Printed 603.95.747
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1st Ed. - Base 12/2013
Voltage reducer
The electrical system of the vehicle is prepared for the power supply of 12V devices. In the cab there is a connection with a voltage
reducer (from 24 V a 12 V).
Do not power the unit directly by taking 12 V voltage from a single battery.
▶
The voltage reducer is arranged for a maximum current absorption of 20 A at a temperature of
30
°
C (measured in the device compartment on the upper cross member). Therefore, it must
not be used if other devices indicate higher absorption.
▶
Operations which do not comply with the instructions specified by IVECO or carried out by non
qualified personnel can cause severe damage to on-board systems, affect driving safety, reliab-
ility and good operation of the vehicle and cause considerable damage which is not covered by
warranty.
Additional circuits
The additional circuits must be separated from the vehicle and protected by means of a specific fuse
As already seen in chapter 5.5 (
➠
Page 36) Paragraph "Precautions for work on the system", the used cables must be:
●
of appropriate sizes and equipped with good original insulation;
●
connected to the original system by means of tin joints equivalent to the original ones, protected with sheaths (not PVC) or
intubated in polyamide conduits of type 6;
●
installed protections from shock, heat, rubbing with other components (in particular with the sharp edges of the bodywork);
●
secured separately with insulated cable clamps (e.g. made of nylon) and at adequate intervals (approx. 200 mm).
The passage through crossbars and/or sections must provide special fairleads or protections; it is not possible to drill the chassis
and/or the bodywork
In case of external panels, use a specific sealant both on the cable and on the panel to prevent water, dust and fumes from infiltrat-
ing.
Where possible it shall also be provided a different cable path that transfers interference signals with high absorbed intensity (e.g.
electric motor, solenoid valves) and low absorbed intensity susceptible signals (e.g. sensors); for both must be remained a position-
ing as close as possible to the metallic structure of the vehicle.
Plug and terminal connections must be protected, resistant to weathering, and executed using components of the same type as
those utilised originally on the vehicle.
Use cables and fuses with the characteristics shown in the following table in accordance with the current draw:
Use cables and fuses in accordance with the current draw:
Max. continuous current
(1)
(A) Cable cross-section (mm
2
) Fuse capacity
(2)
(A)
0 ÷ 4 0,5 5
4 - 8 1 10
8 ÷ 16 2,5 20
16 - 25 4 30
25 - 33 6 40
33 ÷ 40 10 50
40 - 60 16 70
60 - 80 25 100
80 ÷ 100 35 125
100 - 140 50 150