NBN EN 60664-1 : 2007

INTRODUCTION
SECTION 1: GENERAL AND DEFINITIONS
1.1 Scope
1.2 Normative references
1.3 Definitions
SECTION 2: BASIS FOR INSULATION COORDINATION
2.1 Basic principles
2.2 Voltages and voltage ratings
2.3 Frequency
2.4 Time under voltage stress
2.5 Pollution
2.6 Information supplied with the equipment
2.7 Insulating material
SECTION 3: REQUIREMENTS AND DIMENSIONING RULES
3.1 Dimensioning of clearances
3.2 Dimensioning of creepage distances
3.3 Requirements for design of solid insulation
SECTION 4: TESTS AND MEASUREMENTS
4.1 Tests
4.2 Measurement of creepage distances and clearances
Annex A (informative) - Basic data on withstand characteristics
                        of clearances
Annex B (informative) - Nominal voltages of supply systems
                        for different modes of overvoltage
                        control
Annex C (informative) - Partial discharge test methods
Annex D (informative) - Additional information on partial
                        discharge test methods
Annex E (informative) - Comparison of creepage distances specified
                        in table 4 and clearances in table A.1
Annex ZA (normative) - Normative references to international
                        publications with their corresponding
                        European publications
Figures
Tables

Defines the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria. It includes methods of electric testing with respect to insulation coordination. It also deals with insulation coordination for equipment within low-voltage systems. Applies to equipment for use up to 2000 m above sea level having a rated voltage up to a.c. 1000 V with rated frequencies up to 30 kHz, or a rated voltage up to d.c. 1500 V.