Why should the switch be connected to the live wire instead of the neutral wire?

- Apr 12, 2020-

Why should the switch be connected to the live wire instead of the neutral wire?

Why should the switch be connected to the live wire instead of the neutral wire (1)

                                               

Case description:
Customer responded that B Series 2 pin & 3 pin & multifunction socket with switch & neon, the neon is still on after the switch is cut off.

Why should the switch be connected to the live wire instead of the neutral wire (2)

 

Process analysis:

    After receiving the sample sent by the customer, the test was performed. It was found that the customer mistakenly connected the neutral wire to the switch, which caused the indicator light to turn on after the switch was cut off. This connection method has no effect on the customer's use, but there are hidden dangers (correct connection method: The switch should control the live wire). It is recommended that the customer connect the live wire to the switch (as shown in picture), so that the indicator light will not turn on when the switch is cut off, and it is safe at the same time.

Why should the switch be connected to the live wire instead of the neutral wire (3)

 

The conclusion:
This situation is caused by the customer mistakenly connecting the neutral wire to the switch.

 

The solution:
1. Our products have no quality problems, please feel free to use.
2. It is recommended that customers control the live wire with the switch.

 

Why should the light switch be connected to the live wire and not to the neutral wire?

 

If the lighting switch is connected to the neutral line, although the electric lamp does not turn on when the switch is turned off, the phase line of the lamp head is still connected. People think that the lamp is off, and they will mistakenly think that it is in a power-off state. In fact, the voltage to ground at each point on the lamp is still a dangerous voltage of 220 volts.

 

If people touch these parts that are actually charged when the lights are off, it could cause an electric shock. Therefore, all kinds of lighting switches or switches of single-phase small-capacity electrical equipment can only be safe if they are connected in series to the live wire.