The “standby energy consumption” of an appliance refers to the energy consumption of the product when it is turned off or when it is not using its original function. Most home appliances also consume energy when they are off.
Appliances with standby power consumption include: air conditioners, humidifiers, telephones, tape recorders, range hoods, audio systems, microwave ovens, washing machines, mobile phone chargers, computers, portable electric heaters, fans, power adapters, printers, rice cookers, and disinfection cabinets. TVs, VCRs, fax machines, etc. Therefore, in order to save energy, you should develop the habit of unplugging.
The metal parts or the live parts in the electrical appliances are mutually insulated. In the case of excluding the “applied voltage” and “without obstacles”, the current formed on the surface of the insulating parts through the medium is the leakage current. The presence or absence of leakage current is one of the important indicators to consider the strength of an electrical appliance. From the perspective of security, people have put forward higher requirements on the performance of electrical appliances, especially home appliances, and absolutely cannot accept the occurrence of current leakage of electrical appliances, so as to pose a threat to the personal safety of users.
1. Control electrical appliances: electrical appliances used in various control circuits and control systems, such as contactors, relays, motor starters, etc.;
2, the main command electrical appliances: used in the automatic control system to send action instructions electrical appliances, such as buttons, limit switches, universal switch, etc.;
3, protection of electrical appliances: for the protection of electrical circuits and electrical equipment, such as fuses, thermal relays, all kinds of protection relays, arresters, etc.;
4, the implementation of electrical: refers to the completion of a certain action or transmission functions of electrical appliances, such as electromagnets, electromagnetic clutches, etc.;
5, distribution electrical appliances: for electrical energy transmission and distribution of electrical appliances, such as high-voltage circuit breakers, disconnectors, knife switches, automatic air switches.