Human exposure to electromagnetic fields

Goals

formation-objectifs-seointro Human exposure to electromagnetic fields :

- Identify the risks of biological and health effects of electromagnetic fields on people.
- Implement the necessary protective measures to comply with regulations

The aim of this training course is to:
- Understand the basic restrictions (VLE) and action values (VA)
- Be able to take regulatory requirements into account
- Understand magnetic and electric field measurement methods according to the ANFR protocol
- Know and adapt the various means of protection

Program

1/ Physical quantities

Electric field and displacement (E and D)

Magnetic field and induction (H and B)

Impedancewave impedance (Zc)

Permittivity (µ) and permittivity (ε)

Impedance of biological tissues

Contact currents and induced current

Power surface density

Specific absorption rate (SAR)

Specific absorption energy (SAE)

Antenna gain and wave plane

Field attenuation with distance

2/ Biological effects

Biological and health effects

Actions against health risks

Presentation of the ICNIRP

Risk assessment method

Legal and technical definitions

ICNIRP protection classes

Proven biological effects

Heating measures

Effects of current according to frequency

Effects of E or H according to frequency

Field penetration into tissue

Acoustic effect of a pulse

Non-thermal effects

Various types of studies

Main scientific results

Difficulties of an epidemiological study

Electromagnetic hypersensitivity

Modulated or pulsed fields

Exposure limit values

3/ Reference levels and limit values

European regulations

Basic restrictions (VLE)

Distinction between the general public and workers

Low and high VA for workers

Overview of VA

Variation in SAR with frequency

Exceedance of sensory ELVs

Induced current density

Equivalent pulse frequency

Power integration time

Action currents

Reference fields

Assessment of multiple exposure

Case of medical implants

Limits of peak values

Evolution of levelsICNIRP

Regulation and standardisation

European Directive 1999/519/EC

French Decree 2016/1074 of 3 August 2016

European Directive 2013/35/EU

Main regulatory texts

Some product standards

Summary and risks of confusion

4/ Exposure measurements

Measurement of magnetic fields

Low-frequency field meter

Passive antenna with ICNIRP response

Measurement of HF electric fields

Field meter measurement precautions

Power density measurement

SAR measurement using a phantom

ANFR V3 measurement protocolANFR V3

Evolution of the protocol

Public safety perimeter

Radar-type pulsed field measurement

Measurement uncertainties and difficulties

Typical measurement report

The case of high-voltage power lines

The case of Linky smart meters

Radio pylons and shared sites

Risk assessment of a machine

5/ Working in strong fields

ETSI report 101 870

Classification/training of workers

Field monitoring method

Limit distance method

Access restriction by zoning

Individual " Individual dosimeters

High-field environments

The case of MRI

Conformity assessment EN 50499

Protective clothing

Marking and logo

DREP 302 143 instruction

Marking of a radio site

Examples of zoning

Example of information leaflet

STANAG 2345 medical form

Bibliography and websites