GB/T 32577-2016 Measurement procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure
GB/T 32577-2016 Measurement procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure
Basic Information
Scope
This standard specifies the measurement and simulation/calculation methods for magnetic field strength in rail transit environments where humans (including those with pacemakers) are present, but does not consider the impact of the following factors: -- High-power transients (such as short circuits, grounding faults, and transformer overvoltages); -- Personal electronic devices of passengers and staff (such as mobile phones, laptops, and wireless communication systems); -- Dedicated transmitters with frequencies higher than 20 kHz. This standard applies to equipment, systems, and ground devices in rail transit environments with magnetic field frequencies ranging from 0 GHz to 300 GHz. Due to the natural characteristics of magnetic field sources in rail transit environments, only the values of magnetic fields in the range of 0 kHz to 20 kHz are considered and measured.