BS 7640-1(1993) : 1993 AMD 8679

Committees responsible
National foreword
Introduction
Section 1. General
1.1 Scope
1.2 Normative references
Section 2. Definitions
2.1 Impulse techniques and insulation
2.2 Characteristics related to disruptive discharge
     and test voltages
Section 3. General requirements relating to test
            procedures and test objects
3.1 General requirements for test procedures
3.2 General arrangement of the test object
3.3 Atmospheric conditions
Section 4. Tests with direct voltage
4.1 Definitions for direct voltage tests
4.2 Test voltage
4.3 Test procedures
Section 5. Tests with alternating voltage
5.1 Definitions for alternative voltage tests
5.2 Test voltage
5.3 Test procedures
Section 6. Tests with impulse voltage
6.1 Definitions for impulse tests
6.2 Test voltage
6.3 Test procedures
Section 7. Tests with impulse current
7.1 Definitions for impulse current tests
7.2 Test current
7.3 Test procedures
Section 8. Composite tests
8.1 Definitions for composite tests
8.2 Tests with hybrid impulse generators
8.3 Test procedures with the hybrid impulse generator
     alone
8.4 Test procedures with the hybrid impulse generator
     and mains
8.5 Test procedure with the conventional 1, 2/50
     impulse generator and mains
Annexes
A (informative) Arrangements for composite tests
B (informative) Information to be given in the test
     report
Figures
1 Evaluation of impulse voltage waveshape
2 Examples of impulses with oscillations or overshoot
3 Evaluation of impulse current waveshape
A.1 Circuit arrangement for composite tests

Covers the high voltage testing of low voltage equipment (having a rated voltage of not over 1 kV a.c. or 1,5 kV d.c.). Applies to: dielectric tests with alternating voltage; tests with impulse current; dielectric tests with direct voltage; dielectric tests with impulse current; tests with combination of the above. Includes annexes and diagrams. BS AMD 8679 RENUMBERS THIS STANDARD TO BS EN 61180 PT1