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UNE-EN 60664-4:2006
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Insulation coordination for equipment within low-voltage systems -- Part 4: Consideration of high-frequency voltage stress (IEC 60664-4:2005)
Hardcopy , PDF
Spanish, Castilian, English
29-11-2006
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Clearances
4.1 General conditions
4.2 Basic information
4.3 Homogeneous and approximately homogeneous fields
4.3.1 Conditions for approximately homogeneous field
4.3.2 Experimental data of breakdown characteristics
4.3.3 Dimensioning of clearances for homogeneous and
approximately homogeneous field conditions
4.4 Inhomogeneous fields
4.4.1 Conditions for inhomogeneous field
4.4.2 Experimental data of partial discharge and
breakdown characteristics
4.4.3 Dimensioning of clearances for inhomogeneous
field conditions
5 Creepage distances
5.1 Experimental data
5.2 Dimensioning of creepage distances
6 Solid insulation
6.1 General consideration
6.2 Influencing factors
6.3 Dimensioning of solid insulation
7 High-frequency testing
7.1 Basic requirements
7.2 Test voltage source
7.3 Conditioning
7.4 High-frequency breakdown test
7.4.1 Test method
7.4.2 Test result
7.5 High-frequency partial discharge test
7.5.1 General considerations
7.5.2 Test method
7.5.3 Test equipment
7.5.4 Test circuit
7.5.5 Required bandwidth of the test circuit
7.5.6 Dimensioning of the test circuit
7.6 Examples of test results
8 Non sinusoidal voltages
8.1 General considerations
8.2 Periodic impulse voltage
8.3 Harmonic analysis
8.4 Dimensioning procedure and testing
Annex A (informative) Insulation characteristics of
clearances at high-frequency
voltages
A.1 Basic information about the breakdown of clearances
A.2 Experimental data
A.2.1 Homogeneous and approximately homogeneous field
distribution
A.2.2 Inhomogeneous field distribution
Annex B (informative) Insulation characteristics of creepage
distances at high-frequency voltages
B.1 Withstand characteristics of creepage distances
B.2 Experimental conditions
B.3 Experimental data
Annex C (informative) Insulation characteristics of solid
insulation at high-frequency voltages
C.1 Degradation mechanism of solid insulation
C.2 Experimental results
Annex D (normative) Testing of insulation at high-frequency
voltages
D.1 Test voltage source
D.2 High-frequency partial discharge test
D.2.1 Test equipment
D.2.2 Test circuit
D.3 Examples of test results
Annex E (informative) Insulation stressed with non-sinusoidal
high-frequency voltages
E.1 Objective
E.2 Harmonic analysis
Annex F (informative) Dimensioning diagrams
Bibliography
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