GB/T 17045-2020 Active

This standard is a basic safety publication, mainly used by technical committees to prepare standards in accordance with the principles stipulated in IEC Guide 104 and ISO/IEC Guide 51.
This standard is not intended to be used as an independent standard.
According to IEC Guide 104, technical committees need to use basic safety publications such as IEC 61140 when drafting, amending, or revising their publications.
This standard applies to electric shock protection for humans and livestock. Its purpose is to provide the basic principles and requirements commonly used in electrical devices, systems, and equipment, or required for their coordination. Regarding voltage or current values or types of current, this standard does not impose restrictions, but the frequency is required to be no more than 1,000 Hz.
Some provisions in this standard involve low-voltage and high-voltage systems, devices, and equipment. The rated voltage of low-voltage in this standard does not exceed 1,000 V AC or 1,500 V DC. The rated voltage of high-voltage exceeds 1,000 V AC or 1,500 V DC.
It should be noted that in order to effectively design and select protective measures, it is necessary to consider the possible types and waveforms of voltage, namely AC or DC voltage, sinusoidal, transient, phase-controlled, superimposed DC, and the possible mixtures of these waveforms. Devices or equipment may affect the voltage waveform, such as converters or inverters. The current under normal and fault conditions depends on the aforementioned voltage.