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Automobile Inductive Hold Switch

Automobile Inductive Hold Switch

Automobile Inductive Hold Switch Since mankind invented and used electricity, electricity has not only brought a lot of convenience to mankind, it has also brought disastrous effects to mankind. It can burn out electrical appliances, cause a fire, or cause people to get an electric shock. If...

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Automobile Inductive Hold Switch



Since mankind invented and used electricity, electricity has not only brought a lot of convenience to mankind, it has also brought disastrous effects to mankind. It can burn out electrical appliances, cause a fire, or cause people to get an electric shock. If there is a device that allows people to use electricity safely, many unnecessary losses will be avoided. As a result, a wide variety of protectors were born at the same time as a wide variety of electrical appliances. One of them is a specially protected person called an electric leakage protector. Leakage protector, commonly known as leakage switch, is used to protect people from electrical shock and electrical fire when the circuit or electrical insulation is damaged due to short circuit to ground. It is generally installed on the outlet circuit of the distribution box of each household and the total power distribution of the whole building. The box's power inlet line, which is dedicated to preventing electrical fires.
Leakage protectors have undergone a long history of development and are currently used throughout the world.
In 1930, a voltage-operated earth leakage protector was invented in Europe to prevent electrical shock from electrical equipment damage due to insulation damage. In 1960, a current-operated leakage protector appeared. At present, the voltage-operated earth leakage protectors in the world have been eliminated, and current-operated earth leakage protectors have become the main electric devices for electric leakage and electric shock protection.
In 1964, Japan started to develop a voltage action type leakage protector to prevent electric shock accidents at the construction site. In 1966, an electromagnetic current-operated leakage protector was introduced from West Germany. In 1976, an integrated circuit leakage protector was started.
In the United States, since 1967, current-operated leakage protectors have been used. Due to the electric shock hazard in swimming pools, attention has been paid to the development of electric leakage protectors, and electric leakage protectors with a leakage current of 5 mA have been required from the beginning.

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