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L'{{pll|Air Brake System Overview|impianto di frenatura ad aria compressa}} può essere monitorato tramite gli appositi manometri, solitamente situati nella {{pll|Rail Vehicle Types|cabina di un'unità di trazione}}. | |||
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Revision as of 11:20, 26 April 2025
L'impianto di frenatura ad aria compressa può essere monitorato tramite gli appositi manometri, solitamente situati nella cabina di un'unità di trazione .
Main reservoir pressure should always be at, or near, 8 bar, and it is automatically refilled by the compressor .
Brake pipe operating pressures are between 3.5 bar when the brake is fully applied and 5 bar when it is fully released. Brake pipe pressure is usually represented by a black or white needle on the brake pipe gauge, and its pressure is controlled by the train brake control device.
Brake cylinder pressure goes between 0 and 3.75 bar and represents the actual braking force applied to the wheels . Brake cylinder pressure is usually represented by a red needle on the brake pipe gauge.
Since gauges display pressures relative to the atmospheric pressure, the actual absolute pressures are approximately 1 bar higher than what's indicated on the gauge and used in technical documentation.