IEC 62479:2010

Overview

IEC 62479:2010 outlines straightforward methods for assessing the compliance of low-power electronic and electrical equipment with basic restrictions on human exposure to electromagnetic fields (EMF) in the frequency range of 10 MHz to 300 GHz. Developed by the International Electrotechnical Commission (IEC), this standard is relevant for manufacturers, compliance engineers, and certification bodies involved in the design, assessment, and approval of equipment with low electromagnetic emissions.

IEC 62479:2010 provides practical guidance and routes for determining whether a product’s EMF emissions remain within internationally accepted exposure limits. If equipment does not clearly comply using these simplified procedures, more comprehensive standards, such as IEC 62311 or other specific EMF product standards, should be referenced.

Key Topics

• Scope of Application: Focuses on low-power electrical and electronic devices where the EMF exposure is unlikely to exceed public or occupational safety limits.
• Assessment Methods: Presents four primary routes for demonstrating compliance, including inherent compliance due to physical characteristics, low input/output power, adherence to product-specific power limits, or via calculations and/or measurements.
• Low-Power Exclusion Levels: Defines thresholds for available antenna power or average total radiated power. Devices below these thresholds are deemed compliant without detailed exposure analysis.
• Exposure from Multiple Sources: Considers cumulative EMF exposure from products with more than one transmitting component.
• Uncertainty in Measurements: Sets default and maximum allowed uncertainty values for assessment methods, with guidance for calculating expanded measurement uncertainty.
• Reporting Requirements: Specifies essential documentation and information that must be included in EMF assessment reports for demonstration and repeatability of results.

Applications

IEC 62479:2010 is widely used in the conformity assessment of devices such as:

• Consumer electronics (e.g., laptops, tablets, audio/visual equipment)
• Information technology equipment (ITE) and multimedia equipment (MME)
• Wireless devices, including those operating close to the body
• Industrial and commercial low-power electronic equipment

Typical users of this standard include product manufacturers, importers, regulatory authorities, and certification laboratories. The standard’s simplified approach enables efficient determination of compliance for devices with inherently low emissions, streamlining processes for market access and regulatory approvals.

Compliance benefits:

• Reduces the complexity and cost of EMF testing for low-power equipment.
• Facilitates global market entry by aligning with international EMF safety benchmarks.
• Supports manufacturers in demonstrating due diligence regarding human health and safety.

Related Standards

For equipment that cannot be shown to comply using the methods in IEC 62479:2010, the following EMF standards and guidelines are commonly referenced:

• IEC 62311: Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields (0 Hz – 300 GHz).
• ICNIRP Guidelines: International recommendations for EMF exposure limits.
• IEEE C95.1: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields.
• ISO/IEC 17025: Requirements for the competence of testing and calibration laboratories, relevant for EMF assessment procedures and reports.

These related standards address scenarios where more rigorous or detailed evaluation is needed, or where the operational parameters of the equipment exceed the low-power exclusion thresholds set by IEC 62479:2010.

By following IEC 62479:2010, manufacturers and compliance professionals can efficiently assess and document the EMF safety of low-power devices, ensuring both regulatory compliance and public safety in the rapidly evolving landscape of electronic and wireless products.