International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 106

Methods for the assessment of electric, magnetic and electromagnetic fields associated with human exposure

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 106MT 61786 I. MagnePPUB2014-122021

History

Stage
Document
Downloads
Decision Date
Target Date
1CD
106/254/CD PDF file 1226 kB
2012-06-01 
AMW
106/253/RR PDF file 79 kB
2012-06-01 
ACDV
106/280A/CC Word file 69 kB
PDF file 401 kB
2013-07-052012-10
CCDV
106/282/CDV
PDF file 895 kB
PDF file 937 kB
2013-09-272013-09
AFDIS
106/312/RVC Word file 77 kB
PDF file 257 kB
2014-07-252014-03
DECFDIS
2014-07-262014-09
RFDIS
2014-08-052014-08
CFDIS
106/322/FDIS

2014-09-192014-10
APUB
106/326/RVD PDF file 122 kB
2014-11-242014-11
BPUB
2014-11-252014-12
PPUB
2014-12-112015-01
  

Abstract

IEC 61786-2:2014 provides requirements for the measurement of quasi-static magnetic and electric fields that have a frequency content in the range 1 Hz to 100 kHz, and DC magnetic fields, to evaluate the exposure levels of the human body to these fields. Specifically, this standard gives requirements for establishing measurement procedures that achieve defined goals pertaining to human exposure. Because of differences in the characteristics of the fields from sources in the various environments, e.g. frequency content, temporal and spatial variations, polarization, and magnitude, and differences in the goals of the measurements, the specific measurement procedures will be different in the various environments. Sources of fields include devices that operate at power frequencies and produce power frequency and power-frequency harmonic fields, as well as devices that produce fields independent of the power frequency, and DC power transmission, and the geomagnetic field. The magnitude ranges covered by this standard are 0,1 micro-Tesla to 200 mili-Tesla for AC (1 micro-Tesla to 10 Tesla for DC) for magnetic fields, and 1 V/m to 50 kV/m for electric fields. When measurements outside this range are performed, most of the provisions of this standard will still apply, but special attention should be paid to the specified uncertainty and calibration procedures. Examples of sources of fields that can be measured with this standard include:
- devices that operate at power frequencies (50/60 Hz) and produce power frequency and power-frequency harmonic fields (examples: power lines, electric appliances...);
- devices that produce fields that are independent of the power frequency.(Examples: electric railway (DC to 20 kHz);
- commercial aeroplanes (400 Hz), induction heaters (up to 100 kHz), and electric vehicles);
- and devices that produces static magnetic fields: MRI, DC power lines, DC welding, electrolysis, magnets, electric furnaces, etc. DC currents are often generated by converters, which also create AC components (power frequency harmonics), which should be assessed. When EMF products standards are available, these products standards should be used. With regard to electric field measurements, this standard considers only the measurement of the unperturbed electric field strength at a point in space (i.e. the electric field prior to the introduction of the field meter and operator) or on conducting surfaces. Sources of uncertainty during measurements are also identified and guidance is provided on how they should be combined to determine total measurement uncertainty.

Project

IEC 61786-2:2014 ED1

Measurement of DC magnetic, AC magnetic and AC electric fields from 1 Hz to 100 kHz with regard to exposure of human beings - Part 2: Basic standard for measurements

 

Remark:


 

Associated Documents:

106/357/RM

PDF file 258 kB
106/219/RR

PDF file 75 kB