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SN EN 61000-4-8 : 1993 AMD 1 2001
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ELECTROMAGNETIC COMPATIBILITY (EMC); PART 4: TESTING AND MEASUREMENT TECHNIQUES; SECTION 8: POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST; BASIC EMC PUBLICATION
12-01-2013
Cooperating organizations
National foreword
Foreword
1. Scope
2. Normative references
3. General
4. Definitions
4.1 EUT
4.2 Induction coil
4.3 Induction coil factor
4.4 Immersion method
4.5 Proximity method
4.6 Ground (reference) plant
4.7 Decoupling network, back filter
5. Test levels
6. Test equipment
6.1 Test generator
6.2 Induction coil
6.3 Test and auxiliary instrumentation
7. Test set-up
7.1 Ground (reference) plane
7.2 Equipment under test
7.3 Test generator
7.4 Induction coil
8. Test procedure
8.1 Laboratory reference conditions
8.2 Carrying out the test
9. Test results and test report
Figures
1. Example of application of the test field by the
immersion method
2. Schematic circuit of the test generator for power
frequency magnetic field
3. Example of test set-up for table-top equipment
4. Example of test set-up for floor-standing equipment
5. Example of investigation of susceptibility to
magnetic field by the proximity method
6. Illustration of Helmholtz coils
B.1 Characteristics of the field generated by a square
induction coil (1 m side) in its plane
B.2 3 dB area of the field generated by a square
induction coil (1 m side) in its plane
B.3 3 dB area of the field generated by a square
induction coil (1 m side) in the mean orthogonal
plane (component orthogonal to the plane of the coil)
B.4 3 dB area of the field generated by two square
induction coils (1 m side) 0,6 m spaced, in the
mean orthogonal plane (component orthogonal to the
plane of the coils)
B.5 3 dB area of the field generated by two square
induction coils (1 m side) 0,8 m spaced, in the
mean orthogonal plane (component orthogonal to the
plane of the coils)
B.6 3 dB area of the field generated by a rectangular
induction coil (1 m x 2,6 m) in its plane
B.7 3 dB area of the field generated by a rectangular
induction coil (1 m x 2,6 m) in its plane (ground
plane as a side of the induction coil)
B.8 3 dB area of the field generated by a rectangular
induction coil (1 m x 2,6 m) with ground plane, in
the mean orthogonal plane (component orthogonal to
the plane of the coil)
Annexes
A. Induction coil calibration method
B. Characteristics of the induction coils
C. Selection of the test levels
D. Information on power frequency magnetic field strength
ZA. (normative) Other international publications quoted
in this standard with the references of the relevant
European publications
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
National annex NC (informative) Additional cross-references
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