SN EN 61000-4-12 : 2006

Introduction
1 Scope
2 Normative references
3 General
4 Definitions
5 Test levels
6 Test equipment
6.1 Test generators
6.2 Verification of the characteristics of the
     test generators
6.3 coupling/decoupling network
7 Test set-up
7.1 Earthing connections
7.2 Equipment under test
7.3 Coupling/decoupling network
7.4 Test generators
8 Test procedure
8.1 Laboratory reference conditions
8.2 Execution of the test
9 Test results and test report
Figures
1 Waveform of the ring wave (open-circuit voltage and
     short-circuit current)
2 Example of schematic circuit of the test generator
     for ring wave
3 Waveform of the damped oscillatory wave
4 Example of schematic circuit of the test
     generator for damped oscillatory wave
5 Example of test set-up for table-top equipment
     using the ground reference plane
6 Example of test set-up for floor-standing equipment
     using the ground reference plane
7 AC/DC power supply port, single phase, line-to-
     ground test
8 A.C. power supply port, three phase line-to-ground
     test
9 Input/output port, single circuit, line-to ground
     test
10 Input/output port, group of circuits with common
     return, line-to-ground test
11 AC/DC power supply port, single phase, line-to-
     line test
12 A.C.power supply port, three phases, line-to-line
     test
13 Input/output port, single circuit, line-to-line
     test
14 Input/output port, group of circuits with common
     return, line-to-line test
15 Provisions for line-to-line tests with test
     generator output not floating
16 Test of a system with communication ports with
     fast-operating signals (generator output earthed)
Annexes
A Information on the phenomena, selection of the test
B Selection of the test levels
C Impedance of the test generators
D Bibliography
ZA (normative) Normative references to international
     publications with their corresponding European
     publications

Applies to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, to non-repetitive damped oscillatory transients (ring waves) occurring in low-voltage power, control and signal lines supplied by public and non-public networks.