1 class, class 2 and class 3 electrical equipment's safety level is gradually improved, and its safe
1 class, class 2 and class 3 electrical equipment's safety level is gradually improved, and its safety protection measures are more and more strict. When selecting and using electrical equipment, the appropriate electrical equipment should be selected according to the actual needs and safety requirements.
1 electrical equipment: refers to electrical equipment with protective grounding function. Its working voltage does not exceed 250V, and most household appliances belong to 1 electrical equipment. 1 The safety protection measures of electrical equipment are mainly realized by grounding the electrical enclosure.
Class 2 electrical equipment: refers to electrical equipment with two protective measures. Its working voltage is generally between 250 V and 1000 V, such as power tools and motors. Safety protection measures for Class II electrical equipment include insulation protection and electrical enclosure protection.
Category III electrical equipment: refers to electrical equipment with three protective measures. Its working voltage is generally above 250V, such as high-voltage electrical equipment and power transformers. Safety protection measures for Class 3 electrical equipment include insulation protection, electrical enclosure protection and additional safety measures, such as lightning arrester and circuit breaker.