本文通过电气火灾的起因，提出安装漏电保护器的必要性，并对如何正确选择、安装、使用漏电保护器进行了论。
In the light of the cause of electrical fire, the paper emphasizes the necessity of installing protective unit to prevent the leakage of electricity.
漏电保护器是一种新型低压安全保护电器，它是低压电器中防止人身触电和漏电火灾的保护类电器。
Being a type of new low-voltage safe apparatus, the residual current device (RCD) is used to avoid the electric shock and the fire accident.
为了有效预防火灾，开发了火灾自动保护型漏电断路器。
In order to prevent fire effectively, fire automatic protection type residual current circuit breaker was developed.
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