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BS EN 50499:2019

BS EN 50499:2019

$167.15

Procedure for the assessment of the exposure of workers to electromagnetic fields

Published By Publication Date Number of Pages
BSI 2019 42
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The scope of this document is to provide a general procedure for the assessment of workers’ exposure to electric, magnetic and electromagnetic fields in a workplace in order to determine compliance with exposure limit values and/or action levels as stated in European Directive 2013/35/EU.

The purpose of this document is to

  • specify how to perform an initial assessment of the levels of workers’ exposure to electromagnetic fields (EMF), if necessary, including specific exposure assessment of such levels by measurements and/or calculations,

  • determine whether it is necessary to carry out a detailed risk assessment of EMF exposure.

This document can be used by employers for the risk assessment and, where required, measurement and/or calculation of the exposure of workers. Based on specific workplace and other standards, it can be determined whether preventive measures/actions have to be taken to comply with the provisions of the Directive.

The frequencies covered are from 0 Hz to 300 GHz.

NOTE 1 This document relates to the exposure limits as specified in the Directive 2013/35/EU. It is intended to protect workers from risks to their health and safety arising or likely to arise from exposure to electromagnetic fields (0 Hz to 300 GHz) during their work. However, this and other Directives can include additional measures for the protection of specific groups of workers and/or specific workplaces for which the employer is required to investigate other protective measures as a part of the overall risk assessment. See Annex A.

NOTE 2 Directive 2013/35/EU has been transposed into national legislation in all the EU member countries. It is intended that users of this standard consult the national legislation related to this transposition in order to identify the national regulations and requirements. These national regulations and requirements can have additional requirements that are not covered by this standard.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
8 3 Terms and definitions
10 4 General considerations on assessment
4.1 Introduction
4.2 Overview of risk assessment procedure
16 4.3 Indirect effects
17 4.4 Uncertainty for assessments using Clauses 7, 8 and 9
5 Initial assessment
21 6 Workplaces likely to require further assessment
22 7 Standards for specific workplaces
8 Methodology for assessing workplace exposure by comparison with the action levels
23 9 Methodology for assessing workplace exposure by comparison with the exposure limit values
24 10 Methodology for taking measures
25 11 End of assessment
26 Annex A (normative)Other health and safety issues: indirect effects of fields and workers at particular risk
A.1 Introduction
A.2 Indirect effects of fields on workers
A.3 Indirect effects on workers with medical devices
27 A.4 Indirect effects on equipment and materials
A.5 Pregnant workers
A.6 Zoning
28 Annex B (informative)Documenting the risk assessment
B.1 General
B.2 Form 1: Workplace containing only equipment in Table 1
B.2.1 General information
B.2.2 Assessment
29 B.3 Form 2: Workplace requiring detailed risk assessment
B.3.1 General information
B.3.2 Assessment
30 Annex C (informative)CE-marked equipment
C.1 CE-marked equipment
31 C.2 Identifying equipment that has been assessed
32 Annex D (informative)Simultaneous exposure to multiple frequencies and multiple sources
D.1 Terms and definitions
D.1.1 Exposure Ratio (ER or ER %)
D.1.2 Total Exposure Ratio (TER or TER %)
D.2 The TER approach
D.2.1 Explanation
33 D.2.2 ER for a single item of equipment
D.2.2.1 Obtaining or calculating the ER for a single item of equipment
D.2.2.2 Calculating single equipment ER from measured emission or exposure levels for non-thermal effects (below 10 MHz)
34 D.2.2.3 Calculating single equipment ER from measured emission or exposure levels for thermal effects (above 100 kHz)
35 D.2.3 Combining the separate equipment ERs into a TER
D.2.3.1 Simple assessment of the TER
D.2.3.2 Assessment of low frequency (non-thermal effects)
D.2.3.3 Assessment of high frequency (thermal effects)
36 D.2.3.4 Assessment of intermediate frequencies 100 kHz to 10 MHz, or if the applicable frequency of measurement assessments covers both the stimulation effects and thermal effects, or is unknown
D.3 Example of multiple exposure using separate TER assessments
37 Annex E (informative)Zoning
E.1 Introduction
E.2 Workplace zones
E.3 Implementation of zoning

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BS EN 50499:2019
$167.15