1 Scope
2 Normative references
3 Definitions
4 Test circuits and measuring systems
4.1 General requirements
4.2 Test circuits for alternating voltages
4.3 Measuring systems for apparent charge
4.4 Requirements for measurements with
digital PD-instruments
4.5 Measuring systems for derived
quantities
4.6 Ultra-wide band instruments for
PD detection
5 Calibration of a measuring system in the
complete test circuit
5.1 General
5.2 Calibration procedure
6 Calibrators
6.1 General
6.2 Calibrators for the calibration of
a measuring system in the complete
test circuit
6.3 Calibrators for performance tests
on measuring systems
7 Maintaining the characteristics of calibrators
and measuring systems
7.1 Schedule of tests
7.2 Maintaining the characteristics of calibrators
7.3 Maintaining the characteristics of measuring
systems
8 Tests
8.1 General requirements
8.2 Conditioning of the test object
8.3 Choice of test procedure
9 Measuring uncertainty and sensitivity
10 Disturbances
11 Partial discharge measurements during tests
with direct voltage
11.1 General
11.2 Quantities related to partial discharges
11.3 Voltages related to partial discharges
11.4 Test circuits and measuring systems
11.5 Tests
Annex A (normative) Performance test on a calibrator
General
A.2 Reference method
A.3 Alternative method
Annex B (informative) Test circuits
Annex C (informative) Measurement on cables, gas insulated
switchgear, power capacitors and on test objects
with windings
General
C.2 Attenuation and distortion phenomena
C.3 Resonance phenomena, reflections
C.4 Location of discharges
Annex D (informative) The use of radio disturbance
(interference) meters for the detection
of partial discharges
Annex E (informative) Guidelines to digital acquisition
of partial discharge quantities
General
Instructions for processing analogue apparent
charge signals
Recommendations for recording test voltage,
phase angle and time of occurrence of a PD
pulse
Annex F (informative) Non-electrical methods of PD
detection
General
F.2 Acoustic detection
F.3 Visual or optical detection
F.4 Chemical detection
F.5 Reference documents
Annex G (informative) Disturbances
Sources of disturbances
Detecting disturbances
Reduction of disturbances
G.1.1 Screening and filtering
G.1.2 Balanced circuits
G.1.3 Electronic processing and recovering
of signals
Disturbance levels
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications