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Table 35: Environmental Protection – Electrical
Test Description Specification Test level/ Rating
Operation voltage * ISO 16750-2
• 6V…16V (12V systems)
• 10V…32V (24V systems)
Overvoltage ISO 16750-2
• Test level: 48V
• Test time: 1 min / 5 min
Superimposed alternating voltage ISO 16750-2
• Test voltages Umax: 16V
and 32V
• Test severity: 2 (Upp: 4V)
• Test frequency: 50 Hz –
20 kHz
• Frequency sweep:
Triangular, linear
• Sweep duration: 120 s
• Number of sweeps: 5
Reversed voltage ISO 16750-2
• Test level UA: -36V (24V
system).
• Test level UA: -24V (12V
system).
• Duration: 5 min.
Slow decrease and increase
of supply voltage ISO 16750-2
• Supply voltage range: 8 to
36V.
• Decrease the supply
voltage from Umax to 0V
and then increase it from
0V to Umax
• Change rate: 0,5 ±0,1
V/min.
Momentary drop on supply voltage ISO 16750-2
• Supply voltage Umin: 8V
• Voltage drop to 4,5V for
100 ms
• Rise/fall time: 10 ms
Reset behaviour at voltage drop ISO 16750-2
Line interruption (single & multiple
line interruption)
ISO 16750-2
• Interruption time: 10 s
• Oper.voltage UA: 28V.
Short circuit protection
(signal & load circuits) ISO 16750-2
• 60 s / 5 min
Power supply with and without
battery
Parker
Immunity to micro power cuts Parker
• Unom: 13,5V and 27V
• Transit.app: 10
μ
s
• Cut durations: 100, 200
and 400 µs
• Test duration: 5 pulses for
each level
• Pulse period > 1 s