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IEC TS 62996:2017

Current
Current

The latest, up-to-date edition.

Industrial electroheating and electromagnetic processing equipment - Requirements on touch currents, voltages and electric fields from 1 kHz to 6 MHz
Published date

15-09-2017

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Organization and use of this document
5 Prospective source voltage limits
6 Assessment of the source impedance
7 Touching and access considerations
8 Impedances of parts of the body, and touch current
   densities
9 Capacitively coupled currents in the body due to an
   external electric field or insulated live part
10 Electric shock - immediate nerve and muscle
   reactions
11 Electric shock - local overheating and burns of
   parts of the body
12 Requirements and risk group classification
13 Non-sinusoidal touch currents
14 Warning marking and risk group classifications
Annex A (informative) - Examples of calculations
Annex B (informative) - Rationales, references and
        volunteer studies in the non-thermal case
Annex C (informative) - Additional information and
        rationales - skin data and impedances of parts
        of the body
Bibliography

IEC TS 62996:2017(E) addresses the safety assessments in the frequency range between 1 kHz and 6 MHz and provides limits for touch and touch currents for industrial installations or equipment for electroheating (EH) and electromagnetic processing of materials (EPM). Indirect contact by capacitive currents to parts of an earthed human body in an open space are also included, since the current is then distributed analogously in the part of the body and differs from cases of induced electric shock.

DevelopmentNote
Stability Date: 2020. (09/2017)
DocumentType
Technical Specification
PublisherName
International Electrotechnical Committee
Status
Current

Standards Relationship
PD IEC/TS 62996:2017 Identical

IEC TS 62997:2017 Industrial electroheating and electromagnetic processing equipment - Evaluation of hazards caused by magnetic nearfields from 1 Hz to 6 MHz
18/30366694 DC BS EN 60519-3. Safety in installations for electroheating and electromagnetic processing Part 3. Particular requirements for inductively coupled and resistive equipment and processing installations
IEC TR 63167:2018 Assessment of contact current related to human exposure to electric, magnetic and electromagnetic fields
PD IEC/TS 62997:2017 Industrial electroheating and electromagnetic processing equipment. Evaluation of hazards caused by magnetic nearfields from 1 Hz to 6 MHz

IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
IEC GUIDE 117:2010 Electrotechnical equipment - Temperatures of touchable hot surfaces
IEC 60519-6:2011 Safety in electroheat installations - Part 6: Specifications for safety in industrial microwave heating equipment
EN 50444:2008 Basic standard for the evaluation of human exposure to electromagnetic fields from equipment for arc welding and allied processes
IEEE C95.1-2005 IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz
IEC TS 62997:2017 Industrial electroheating and electromagnetic processing equipment - Evaluation of hazards caused by magnetic nearfields from 1 Hz to 6 MHz
IEEE C95.6-2002 IEEE Standard for Safety Levels With Respect to Human Exposure to Electromagnetic Fields, 0-3 kHz
IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
IEC 60519-9:2005 Safety in electroheat installations - Part 9: Particular requirements for high-frequency dielectric heating installations
IEC 61010-1:2010+AMD1:2016 CSV Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
IEC 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
IEC TS 60479-2:2007 Effects of current on human beings and livestock - Part 2: Special aspects
IEC 60990:2016 Methods of measurement of touch current and protective conductor current

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