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Anonymous users2024-01-24Test question analysis: The connection method of the switch control bulb: the live wire is first connected to the switch, and then enters the bulb; The neutral line goes directly into the bulb.
The connection of the two SPDT switches is shown in the figure. In order to turn on (or off) the light from one end to the other end to be able to turn off (or turn on) the light, it means that the switch at the door of the bedroom and the side of the bed is connected together So the live wire passes through two series switches in series, and then enters the bulb, and the zero line directly enters the bulb.
Comments: Master the connection method of switching and controlling bulbs in home circuits. Master the connection method of SPDT switches, and pay attention to the differences and similarities between SPDT switches and general switches.
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Anonymous users2024-01-23The left end of the switch is connected to the live wire, and the right end of the bulb is connected to the neutral wire; As shown in the figure below:
Generally, if you turn on the lights to watch TV at night, and the windows are only closed with mosquito-proof windows, then they come in through the small lattice of the mosquito-proof windows, they like light, just turn off the lights.
Double-link single control from the door switch plus three routes to the bedside switch.
It's easy to judge when you see the specific layout of the house! In the same direction, different positions are also different. It needs to be combined with reality.
Generally, the dual control is 3 wires. If it's not three, you can't let the line close. You can't do dual control. However, you can install a remote control light on top of your lamp.
<> look at the upper right corner 2, quietly base double Qiliang key sensitive open dual control wiring diagram.