This standard specifies the measurement methods for low-frequency magnetic field emission in the vehicle environment exposed to by human beings.
This standard is applicable to the frequency range of 10 Hz to 400 kHz.
This standard is applicable to Categories L, M and N vehicles.
This standard is not applicable to measurement of vehicles under wireless charging state.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1 Motor vehicles and trailers—Types—Terms and definitions
GB/T 4365-2003 Electrotechnical terminology—Electromagnetic compatibility
GB/T 5337 Nomenclature and terminology for automotive electrical equipment, lighting and instrumentation
GB 8702-2014 Controlling limits for electromagnetic environment
GB/T 15089 Classification of power-driven vehicles and trailers
GB 18285-2005 Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine under two-speed idle conditions and simple driving mode conditions
GB/T 19596 Terminology of electric vehicles
GB/T 29259 Road vehicle — Electromagnetic compatibility terminology
IEC 62311:2008 Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields(0 Hz~300 GHz)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3730.1, GB/T 4365-2003, GB/T 5337, GB 8702-2014, GB/T 15089, GB 18285-2005, GB/T 19596, GB/T 29259 as well as the following apply.
3.1
magnetic induction strength
force applied by vector field B on the charged particle at a certain speed, which is equal to vector product of speed and B and then multiplied by particle charge, expressed as Tesla (T). The magnetic induction strength is equal to the product of magnetic field strength multiplied by magnetic permeability μ0 in air, i.e. B=μ0H.
[Definition 3.8 in GB 8702-2014]
3.2
general public exposure
all electric, magnetic and electromagnetic fields exposure borne by public, excluding occupational exposure and medical exposure
3.3
internal combustion engine
machine that converts chemical energy from fuel combustion into thermal energy and then into mechanical energy inside the engine cylinder.
3.4
internal combustion engine vehicle; ICEV
vehicle powered entirely by an internal combustion engine.
3.5
idling
state of engine running without load. That is, the clutch is in the engaged position and the gearbox is in the neutral position (the vehicle with automatic gearbox in the "parking" or "P" position); for the vehicle with the carburetor fueling system, the choke valve is in the fully open position; the accelerator pedal is in the fully released position.
3.6
standby
state of drive motor system being powered at high voltage while not running.
GB/T 37130-2018 The following standards are cited：
