GB/T 21067-2025 Electrical equipment of industrial machines—Electromagnetic compatibility—General requirements for immunity
GB/T 21067-2025 Electrical equipment of industrial machines—Electromagnetic compatibility—General requirements for immunity
Basic Information
Scope
This document specifies the general electromagnetic compatibility (EMC) immunity requirements for industrial machinery, electrical and electronic equipment and systems.
This document applies to industrial machinery, electrical and electronic equipment and systems or components of electrical equipment and systems that do not have dedicated product or product category immunity standards, with a nominal power supply voltage not exceeding 1,000 V AC or 1,500 V DC, and a nominal frequency not exceeding 200 Hz.
Note 1: If there are relevant dedicated product or product category EMC immunity standards, the product standards or product category standards shall take precedence over this document in all aspects.
Note 2: The general immunity requirements for industrial machinery, electrical and electronic equipment and systems in this document are designed to ensure that they have an appropriate level of immunity. However, these immunity levels do not cover extremely rare extreme situations that may occur in any environment. The immunity tests in this document do not cover all electromagnetic interference phenomena, but only those related to this document.
Note 3: This document specifies test requirements for each port considered. This document does not include considerations for safety aspects.
Note 4: In some special cases, interference levels may exceed the test levels specified in this document. For example, industrial machinery and electrical systems installed near industrial, scientific, and medical (ISM) radio frequency equipment specified in GB 4824-2019, or when using handheld transmitters near electrical systems. If necessary, consider taking special mitigation measures.