即触摸,在卷闸门维修过程中,也经常在通电后用手摸(鼻嗅)某些元件。如稳

That is to say, in the process of maintenance of the rolling shutter, some components are often touched (sniffed) by hand after the power is turned on. Such as integrated devices such as voltage regulator ICs, detonators, transformers, drive diodes, etc., in order to feel whether the temperature is normal. If the temperature is fast, the temperature is high, and the circuit has no short circuit fault, it can be concluded that the device is bad (Note: For high voltage components For example, the components of SCR and high-voltage area should be touched quickly after power-on for a period of time and then power-off. Do not touch when power is on to avoid electric shock accidents).

That is, touch, in the roll gate repair process, but also often after the power-up hand touch (nose sniffing) certain components. Such as regulator IC and other integrated devices, detonators, transformers, drive diodes and so on, in order to feel its temperature is normal, such as heat fast, high temperature, circuit no short-circuit fault can be concluded that the device is bad (note: for high voltage components such as silicon, high-voltage components, should be powered up for a period of time after power loss quickly touch, do not touch when power, avoid electric shock accident).

That is to say, during the maintenance of the rolling gate, some components are often touched (sniffed) by hand after power on. Such as voltage regulator IC and other integrated devices, lightning protection tube, transformer, drive diode, etc., in order to feel whether the temperature is normal, such as fast heating, high temperature, no short circuit fault in the circuit, it can be judged that the device is bad (Note: for high-voltage components such as thyristor, high-voltage components, should be powered on for a period of time, and then quickly touch after power failure, do not touch when power on, to avoid electric shock accident).<br>