For example, I have a stand fan in my bedroom and I wanna be able to turn it on and off via a switch on my side table (it doesn’t come with a remote, unfortunately). The fan will be set on a specific fan speed and I’ll just have to turn it on or off. Are there gonna be any bad effects to the fan with this setup?
Also, can this be applicable to other small appliances like TVs?
In: 2
In general:
When you disconnect or connect an electrical circuit under load there is alway a small electrical arc. It doesnt matter if its low or high voltage, the arc is always there just different in size.
When an arc is established, there is always a spike in the voltage. The free electrons charge up the surrounding air, the arc starts to creep and when it connects all that charge from the surrounding air is discharged at once.
Thats why you usually have to connect/disconnect everything switched off.
A switch is designed to handle those arcs, plugs are not.
And fun fact: on tvs the power button on the tv disconnects the ac input. So even if the switch is well designed, there is a spike. So the proper way to disconnect a TV is:
1. Switch off using the remote. Its switching off most of the DC side of the circuit.
2. Switch off the power button on the tv. It disconnects the AC side of the circuit.
3. Pull the plug.
Properly connecting everything is the other way around.
Sorry for any grammar mistakes. English is only my second language.
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