GB/T 32577-2025 Railway applications—Electromagnetic emission limits and measurements in the railway environment with respect to human exposure

Scope

This document specifies the limit requirements for magnetic field strength related to human exposure from electronic and electrical equipment in the rail transit environment within the frequency range of 0 Hz to 20 kHz, establishes the measurement procedures for magnetic field strength, and describes the magnetic field strength measurement techniques. The measurement procedures and techniques in this document are applicable to equipment, systems, and ground devices in the rail transit environment with a frequency range of 0 Hz to 300 GHz. The measurement procedures and measurement points in this document take into account the relevant factors of individuals wearing active implantable medical devices, but are not applicable to the risk assessment of magnetic fields generated by rail transit electronic and electrical equipment on individuals wearing active implantable medical devices. This document is not applicable to the electromagnetic emissions from personal electronic devices of passengers and staff, such as mobile phones, laptops, and wireless communication systems. This document is not applicable to the electromagnetic emissions from dedicated transmitters with a frequency higher than 20 kHz.

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