IEC 62226-2-1-2004 PDF

Full title and description

St IEC 62226-2-1-2004 — Exposure to electric or magnetic fields in the low and intermediate frequency range — Methods for calculating the current density and internal electric field induced in the human body — Part 2-1: Exposure to magnetic fields — 2D models. This part introduces the coupling factor K to enable exposure assessment for complex, non-uniform magnetic-field situations and defines calculation methods for simple 2D human-body models.

Abstract

This international standard (first edition, 2004) defines the coupling factor K for non‑uniform magnetic fields and provides methods to calculate induced current density and internal electric field in simplified 2‑dimensional human models. It documents assumptions appropriate for the low‑frequency approximation (displacement currents neglected) and supplies worked examples and modelling guidance for assessing exposure in non‑uniform magnetic field environments.

General information

• Status: Published (first edition); stable publication.
• Publication date: 23 November 2004.
• Publisher: International Electrotechnical Commission (IEC), bilingual English/French.
• ICS / categories: 17.220.20 (Measurement of electrical and magnetic quantities).
• Edition / version: Edition 1.0 (2004).
• Number of pages: 113 pages (bilingual format).

Scope

Specifies methods for calculating induced current density and internal electric field in the human body when exposed to non‑uniform magnetic fields, using simplified two‑dimensional body models and the coupling factor K. The document is intended for the low to intermediate frequency range where the low‑frequency approximation (neglect of displacement currents) is valid and provides guidance and examples for assessing complex exposure situations such as perturbed or spatially varying magnetic fields.

Key topics and requirements

• Introduction and formal definition of the coupling factor K for non‑uniform magnetic fields.
• Analytical and numerical methods for 2D modelling of the human body to calculate induced current density and internal electric fields.
• Assumptions and applicability limits (low‑frequency approximation; frequencies up to a few kHz for the stated approximations unless otherwise verified).
• Boundary conditions, material property assumptions (conductivity), and model simplifications appropriate for exposure assessment.
• Worked examples and illustrative calculations to demonstrate application of the coupling factor and modelling procedures.

Typical use and users

Used by EMF exposure assessors, health & safety engineers, researchers in bioelectromagnetics, utilities and power‑system engineers performing human‑exposure assessments, and national standards bodies for adoption or national implementation. Technical committee TC 106 (methods for assessment of electric, magnetic and electromagnetic fields associated with human exposure) is responsible for the series.

Related standards

Part of the IEC 62226 series on exposure to low and intermediate frequency electric and magnetic fields. Closely related parts include IEC 62226-3-1 (exposure to electric fields — analytical and 2D numerical models) and other parts of the 62226 series that define coupling factors and modelling approaches; the part has been adopted/translated in various regional/national editions (EN/EN adoptions).

Keywords

coupling factor K; magnetic fields; low‑frequency exposure; human body modelling; induced current density; internal electric field; 2D numerical models; IEC 62226; TC 106; EMF assessment.

FAQ

Q: What is this standard?

A: IEC 62226-2-1:2004 is an international standard that specifies methods for calculating induced current density and internal electric fields in the human body for exposure to non‑uniform magnetic fields using 2D models; it introduces the coupling factor K for that purpose.

Q: What does it cover?

A: It defines the coupling factor K for non‑uniform magnetic fields, sets modelling assumptions (low‑frequency approximation), describes analytical and numerical calculation methods for 2D human models, and provides worked examples to apply the methods in exposure assessments.

Q: Who typically uses it?

A: EMF exposure assessors, bioelectromagnetics researchers, power‑industry engineers, occupational health and safety professionals, and standards organizations looking to harmonize national adoptions use this standard.

Q: Is it current or superseded?

A: This document is the first edition published in November 2004. Users should verify national adoptions and later parts/amendments in the IEC 62226 series (other parts of the series have later editions/amendments); consult the IEC publications catalogue or national standards bodies for current stability/withdrawal status before relying on it for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is part of the IEC 62226 series addressing exposure to low and intermediate frequency electric and magnetic fields and is coordinated by IEC TC 106. Other parts (for example Part 3‑1) address electric field exposure and provide complementary modelling guidance.

Q: What are the key keywords?

A: coupling factor K; non‑uniform magnetic field; induced current density; internal electric field; 2D human model; low‑frequency exposure; EMF assessment; IEC 62226.