The internationally recognized boundary between high and low voltage electrical appliances is 1kV (1500V for DC). For high-voltage electrical appliances above 1kV, low-voltage electrical appliances of 1kV and below. Sometimes the transformer was included in the high-voltage electrical appliance. Xi'an High-voltage Electrical Apparatus Research Institute was established in 1958 on the basis of the planned central laboratory of Xi'an Switching Rectifier Factory. It was clearly established as a switch and electric porcelain in Xi'an. Capacitor, insulation and transformer factory carry out research and development, testing services, involving switches, transformers, protective appliances, measuring electrical appliances and other specialties, so named the Institute of High Voltage Electrical Appliances, the name has continued to this day.
In high-voltage electrical product samples, drawings, technical documents, factory inspection reports, type test reports, instructions for use and product brand names, various terminology are often used, which indicate the structural characteristics, technical performance and use environment of the products. Understanding and mastering these terms can bring a lot of convenience to the work. Now, the terminology commonly used in high-voltage electrical appliances is introduced.
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