The small electrical safety class is coming! Do you know that?/You know what? Do you know that?/You know what? The washing machine uses three hole socket not only for plugging in! Its real purpose is to prevent the leakage of the washing machine from causing the shell to be connected to the wire. Once touched, a single-phase electric shock may occur, which is really dangerous! Next, let's talk about the secret of the switch, and how to distinguish the zero line from the live line. Finally, let's introduce the function of the fuse.

The role of three hole socket

The real purpose of using three hole socket in washing machine is to prevent electric leakage and avoid the danger of electric shock.

Connection method of switch

The switch can be connected to the live wire or the neutral wire, but the live wire is safer. Because when the switch is turned off, the live wire will be cut off to avoid the danger of electric shock.

How to distinguish between zero line and live line

You can tell the zero line from the live line with a pencil. Stand on the ground and touch the conductor. If the neon tube glows, it is the fire line. No light is the zero line.

Function of fuse

The function of a fuse is to blow. When the current is too large, the fuse will blow to avoid short circuit or excessive total power of electrical appliances.