NF EN 61259 : 1995

Foreword
Introduction
1. Scope and object
2. Normative reference
3. Definitions
4. Type tests
4.1 Test duties for making and breaking of bus-charging
     current
4.2 Arrangement of the disconnector for tests
4.3 Test frequency
4.4 Test voltages for making and breaking tests
4.5 Test circuits for making and breaking tests
4.6 Performance of making and breaking tests
4.7 Behaviour of the disconnector during making and
     breaking tests
4.8 Condition after test
4.9 Type test reports
4.10 Requirements for measurements
Annex ZA (normative) Other international publications
quoted in this standard with the references of the
relevant European publications

Gives test requirements for gas-insulated metal enclosed disconnectors used to switch small capacitive currents that occur when sections of busbars or grading capacitors are energized or de-energized. Applies to alternating current gas insulated metal-enclosed disconnectors for rated voltages of at least 72,5 kV.