Overview
IEC PAS 63184:2021 provides assessment methods for evaluating human exposure to electric and magnetic fields generated by wireless power transfer (WPT) systems in the 1 kHz to 30 MHz frequency range. It specifies models, instrumentation, measurement procedures, numerical methods and uncertainty evaluation to determine compliance with electromagnetic human exposure guidelines - covering external fields, specific absorption rate (SAR), internal electric fields, current density and contact currents for both stationary and dynamic WPT systems.
Key topics and requirements
- Assessment procedures and conformity - workflows for evaluating direct and indirect effects of WPT systems, including coil-current based evaluation and incident-field comparison against reference levels and basic restrictions.
- Measurement methods - standardized approaches to measure incident E- and H-fields, SAR in phantoms, and contact currents; equipment, setup and verification procedures.
- Computational assessment - numerical modeling methods (quasi-static approximations, FEM, FDTD and hybrid approaches referenced in informative annexes) to compute induced fields, SAR and current density.
- Combination methods - guidance on integrating measurement and simulation to assess induced quantities and validate results.
- Calibration & verification - dosimetric probe calibration, E/H-field calibration methods and measurement system validation (normative annexes).
- Uncertainty and validation - protocols for uncertainty estimation of measurements and numerical results, code verification, model validation and averaging algorithms for spatial/volume averaging of fields.
- Use cases & examples - informative annexes with practical examples such as electric vehicle (EV) WPT, heavy-duty vehicle procedures and drone WPT assessments.
Applications
- Demonstrating regulatory compliance of WPT chargers (EV charging pads, industrial contactless power systems, drone charging) with human exposure limits.
- Defining test methods for EMF test laboratories to measure fields, SAR and contact currents around WPT products.
- Guiding product designers and system integrators to evaluate exposure early in design using numerical modeling and combined measurement approaches.
- Supporting regulatory bodies and conformity assessors in creating reproducible, validated exposure assessments for deployment and certification.
Who should use this standard
- Manufacturers of wireless power transfer systems
- EMC/EMF testing laboratories and certification bodies
- Dosimetry and computational electromagnetics engineers
- Regulatory agencies and safety assessors
- Researchers developing WPT technologies and exposure mitigation strategies
Related standards
IEC PAS 63184:2021 is intended to be used together with relevant national and international electromagnetic exposure guidelines and standards on measurement equipment and human exposure limits (for example, applicable ICNIRP or IEEE exposure limits where referenced by regulators).