
National Association of Testing Authorities, Australia
Scope of Accreditation
National Measurement Institute (NMI)
Site
Power Systems Technology Project
Accreditation No.
1
Site No.
14318
Date of Accreditation
29 Mar 2000
Contact
Availability
Services conditionally available to external clients
Scope of Accreditation
ISO/IEC 17025 (2017)
Calibration
- The uncertainty of measurement is reported as an expanded uncertainty having a level of confidence of 95% unless stated otherwise
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DC and low frequency electrical metrology - High-voltage/high-current standards and equipment | Capacitors | Capacitance | Comparison with a reference standard |
Maximum voltage of 15 kVrms Test frequency of 0.1 Hz |
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Capability Measurement of dielectric dissipation factor and capacitanceWith Calibration and Measurement Capability of - 0.0002 for dielectric dissipation factors from 0.0005 to 0.002 at 0.1 Hz, up to 15 kVrms. 2% from 9 nF to 12 nF for capacitance |
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Current transformer test sets | Current error; Phase displacement | Direct measurement against a reference standard | Calibrations at 50 Hz and 60 Hz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability With Calibration and Measurement Capability of -0.0003% for current ratio error 0.0003 crad for phase displacement |
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Current transformers | Current error; Phase displacement | Comparison with a reference standard |
Including by the methods of - IEC 61869, AS 60044, IEC 60044 |
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Capability With Calibration and Measurement Capability of -0.0002% to 0.0015% for current ratio error from -12.5% to 12.5% 0.0003 crad for phase displacement from -18.9 to 18.9 crad On-site accuracy tests 0.002% for current error from -12.5% to 12.5% 0.002 crad for phase displacement from -18.9 to 18.9 crad |
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High voltage dividers | Voltage ratio | Comparison with a reference standard | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability Including on site calibrationDC voltage ratio of Dividers and Probes With Calibration and Measurement Capability of -
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High voltage measurement systems | Voltage error; Voltage ratio | Comparison with a reference standard | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability Including on site calibrationDC voltage ratio and DC voltage error for DC voltage measurement systems including Voltmeters With Calibration and Measurement Capability of -
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Voltage error; Voltage ratio | Comparison with a reference standard | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability AC voltage measurement systems;Voltmeters; Dividers; Probes; and including on site calibrations; AC voltage ratio; AC voltage error; With Calibration and Measurement Capability of - 0.1% to 550 kVpeak/√2 and 550 kVrms at 50 Hz and 60 Hz |
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Capacitance | Direct measurement against a reference standard |
Capacitance from 5 pF to 200 pF up to 550 kV rms Dielectric dissipation factor from 0 to 0.2 up to 550 kVrms |
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Capability With Calibration and Measurement Capability of - High voltage capacitors |
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Impulse voltage measurement systems | Voltage error; Voltage ratio | Indirect measurement against a reference standard |
Including by the methods of - IEC-60060 and AS 1931 - High-voltage test techniques; AS 61083, IEC 61083 - Instruments and software used for measurement in high-voltage impulse tests |
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Capability Including laboratory and on site calibrationsWith Calibration and Measurement Capability of Calibration of lightning impulse voltage measurement systems 0.4% for voltage ratio, scale factor/voltage error up to 350 kVpeak 2% for front time up to 350 kVpeak 1% for voltage ratio, scale factor/voltage error from 350 kVpeak to 1 MVpeak 3% for front time from 350 kVpeak to 1 MVpeak 1% for time to half value up to 1 MV 0.6% absolute for Voltage linearity test at voltages up to 2.6 MVpeak Calibration of chopped lightning impulse voltage measurement systems 1% for voltage ratio, scale factor/voltage error to 350 kVpeak 2% for voltage ratio, scale factor/voltage error from 350 kVpeak to 700 kVpeak Calibration of switching impulse voltage measurement systems 1% for voltage ratio, scale factor/voltage error to 500 kVpeak 3% for time to peak to 500 kVpeak 2% for time to half value to 500 kVpeak 0.4% absolute for Voltage linearity test at voltages up to 1.8 MVpeak Step response of impulse voltage dividers 4 ns for Experimental response time TN from 0 ns to 50 ns 4 ns for Partial response time T. from 5 ns to 50 ns 7 ns + 1% of ts for settling time ts from 20 ns to 3000 ns 1% for step response overshoot β from 0% to 40% |
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Partial discharge test and measurement equipment | Electric charge - Coulombs; Rise time | Direct measurement against a reference standard |
Calibration of apparent charge of partial discharge calibrators from 0.5 pC to 10 nC Measurement of rise time of the partial discharge pulses from 10 to 100 ns |
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Capability Calibration of partial discharge calibratorsWith Calibration and Measurement Capability of - Apparent charge: 0.03 pC + 2.5% of reading Rise time of the partial discharge pulses: 3 ns |
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Voltage transformer test sets | Phase displacement; Voltage error | Direct measurement against a reference standard | Calibration at 50 Hz and 60 Hz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capability With Calibration and Measurement Capability of -0.0003% ratio error for voltage ratio error from -10% to 10% ratio error 0.0003 crad for phase displacement from -10 to 10 crad |
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Voltage transformers | Phase displacement; Voltage error | Direct measurement against a reference standard |
Including by the methods of - IEC 61869, AS 60044, IEC 60044 |
Method 1 Accuracy tests at 50 Hz and 60 Hz on voltage transformers with primary voltages from 20 Vrms to 160 kVrms and secondary voltages up to 240 V Method 2 Laboratory accuracy tests Accuracy tests at 50 Hz and 60 Hz on voltage transformers with primary voltages from 20 Vrms to 550 kVrms and secondary voltages up to 240 V On-site accuracy tests Accuracy tests at 50 Hz and 60 Hz on voltage transformers with primary voltages from 20 Vrms to 550 kVrms and secondary voltages up to 240 V |
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Capability With Calibration and Measurement Capability of -Accuracy tests in the laboratory (0.0003+(Primary Voltage(kV))/100000))% for voltage error from -0.11% to 0.11% (0.0003+(Primary Voltage(kV))/100000)) crad for phase displacement from -0.11 to 0.11 crad On-Site accuracy tests 0.005% for voltage error from -0.11% to 0.11% 0.005 crad for phase displacement from -0.11 to 0.11 crad |
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High frequency electrical metrology - Communications, electromagnetic field strength and EMC test equipment | Electrical fast transients (EFT) and surge generators | Pulse characteristics | Comparison with a reference standard |
By the method of IEC 62475 |
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Capability Calibration of surge generatorsWith Calibration and Measurement Capability of - 1.1% from 6 μs to 10 μs for Front time; 1.0% from 15 μs to 25 μs for Time to half value; 1.0% from 10 A to 550 A for Peak current; |
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Pulse characteristics | Comparison with a reference standard |
Measurement of Pulse high voltage and current electrical fast transient (burst) parameters; By the method of IEC 61000-4-4 |
Vp, tr, tw, repetition frequency and burst period within limits of IEC 61000-4-4 |
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Capability Calibration of burst generators;with Calibration and Measurement Capability of - 0.5% from 240 ms to 360 ms for burst period; 0.5% from 0.5 ms to 18 ms for burst duration; 1.0% from 5 kHz to 100 kHz for repetition frequency; 6.0% from 35 ns to 150 ns for pulse width; 8.0% from 3 μs to 6 μs for rise time; 7.0% from 125 V to 4000 V for peak voltage |
ISO/IEC 17025 (2017)
Infrastructure and Asset Integrity
Service | Product | Determinant | Technique | Procedure | Limitations |
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Evaluation of high voltage/power equipment and components - Performance | Cables | AC voltage; DC voltage; Dielectric dissipation; Impulse voltage; Leakage current; Partial discharge | High voltage |
Dielectric withstand tests - wet or dry; AC voltage;DC voltage; Lightning impulse; Switching impulse voltage; Partial discharge voltage; By the methods of - AS/NZS 1026 - Electric cables - Impregnated paper insulate, AS/NZS 1429 - Electric cables - polymeric insulated, AS/NZS 3599 - Electric cables - Aerial bundled - Polymeric insulated, AS/NZS 3808 - Insulating and sheathing materials for electric cables, IEC 60526 - High-voltage cable plug and socket connections for medical X-ray equipmen. |
Including on-site testing up to 1 MV Dielectric withstand tests, both wet and dry,up to 600 kV AC voltage up to 600 kV DC voltage up to 1 MV Leakage current from 1 μA up to 5 mA Lightning impulse up to 2.6 MV Switching impulse voltage up to 1.8 MV Partial discharge and RIV test voltage up to 380 kV |
Electricity grid and industrial power supply equipment and systems | AC voltage; Corona onset and extinction voltage; Dielectric dissipation; Impulse voltage; Radio influence voltage measurement | High voltage |
Voltage withstand tests on High voltage switchgears and reactors: including on-site testing Dielectric withstand tests - wet or dry;AC voltage; DC voltage; Lightning impulse; Switching impulse voltage; Partial discharge voltage; RIV test; Corona test; by the methods of - AS/NZS 60265, IEC 60265 - High-voltage switches IEC 60289 - Reactors, AS 2650, IEC 60694 - common specifications for high-voltage switchgear and control gear standards, IEC 60700 - Thyristor valves for high-voltage direct current (HVDC) power transmission, AS 60947, IEC 60947 - Low-voltage switchgear and control gear, AS 62271, IEC 62271 - high-voltage switchgearand control gear; IEEE std C37.66:IEEE standard requirements for capacitor switches for AC systems, |
High voltage switchgears and reactors Dielectric withstand tests, both wet and dry up to 600 kV AC voltage up to 600 kV Lightning impulse up to 2.6 MV Switching impulse voltage up to 1.8 MV Partial discharge, RIV test and corona test voltage up to 380 kV |
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Partial discharge | Partial discharge |
Partial discharge by the methods of - AS 60270; IEC 60270 |
For test voltages up to 380 kV ACrms |
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AC voltage; DC voltage; Dielectric dissipation; Impulse voltage | High voltage |
Dielectric withstand tests - wet or dry; AC voltage;DC voltage; Lightning impulse voltage; Switching impulse voltage; by the methods of - IEC 60060; AS 1931; AS 60060 (High Voltage test techniques only). |
Dielectric withstand tests, both wet and dry up to 600 kV AC voltage up to 600 kV DC voltage up to 1 MV Lightning impulse up to 2.6 MV Switching impulse voltage up to 1.8 MV |
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Insulators | AC voltage; Corona onset and extinction voltage; DC voltage; Dielectric dissipation; Impulse voltage; Leakage current; Partial discharge; Radio influence voltage measurement | High voltage |
Dielectric withstand tests - wet or dry; AC voltage;DC voltage; Lightning impulse; Switching impulse voltage; Partial discharge voltage; RIV test; Corona test; Leakage current; By the methods of - IEC 60071 - Insulation co-ordination, IEC 60383 - insulators for overhead lines with a nominal voltage above 1000 V, AS/NZS 2947, IEC 60383 - insulators - porcelain and glass for overhead powerlines-voltages greater than 1000 V a.c, AS 60720, IEC 60270 - characteristics of line post insulators, IEC 61109 - composite insulators for a.c. overhead lines with a nominal voltage greater than 1000 V, IEC 61467 - insulators for overhead lines-insulator strings and sets for lines with a nominal voltage greater than 1000 V-AC power arc tests, AS 4435, IEC 61952 - insulators-composite for overhead power lines-voltage greater than 1000 V a.c, AS IEC 62073 - Guidance on the measurement of wettability of insulators of insulator surfaces, AS 62217, IEC 62217 - polymeric insulators for indoor and outdoor use with anominal voltage > 1000 V- General Definitions, test methods and acceptance criteria, AS 1154 - Insulator and conductor fittings for overhead power lines, AS 1824 - insulation co-ordination, AS 3609 - Insulators-porcelain stay type-voltage greater than 1000 V a.c, AS 4398 - Insulators-ceramic or glass-station post for indoor and outdoor use-voltage greater than 1000 V a.c, AS 4899 - Pin insulators-porcelain and glass for overhead power lines-voltagegreater than 1000 V a.c., EC 60672 - ceramic and glass insulating materials, ANSI/SIA A92.2 - 2009 - American National Standard for Vehicle-MountedElevating and Rotating Aerial Devices. |
Including on-site testing up to 1 MV Dielectric withstand tests, both wet and dry up to 600 kV AC voltage up to 600 kV DC voltage up to 1 MV Leakage current from 1 μA up to 5 mA Lightning impulse up to 2.6 MV Switching impulse voltage up to 1.8 MV Partial discharge, RIV test and corona test voltage up to 380 kV |
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Transformers and inductors | DC voltage; Dielectric dissipation; Impulse voltage; Partial discharge | High voltage |
Direct Voltage tests on Power Transformers: Dielectric withstand tests - wet or dry;AC voltage; Lightning impulse; Switching impulse voltage; Partial discharge voltage; by the methods of - AS 2374, AS/NZS 60076 ; IEC 60076. Direct Voltage tests on Instrument Transformers by the methods of - IEC 61869, AS 60044, IEC 60044. Dielectric withstand tests, both wet and dry by the methods of - IEC 60060 and AS 1931 (High voltage tests only |
Direct Voltage tests on Power Transformers Direct Voltage tests on Instrument Transformers Dielectric withstand tests, both wet and dry Partial discharge voltageLightning impulse Switching impulse voltage |
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AC voltage; Dielectric dissipation; Impulse voltage; Partial discharge | High voltage |
Tests on current transformers and voltage transformers: Dielectric withstand tests - wet or dry;AC voltage; Lightning impulse; Switching impulse voltage; Partial discharge voltage; By the methods of - IEC 61869 , AS 60044, IEC 60044 |
Tests on current transformers and voltage transformers: Dielectric withstand tests - wet or dryAC voltage up to 600 kV Lightning impulse up to 2.6 MV Switching impulse voltage up to 1.8 MV Partial discharge voltage up to 380 kV |
ISO/IEC 17025 (2017)
Manufactured Goods
Service | Product | Determinant | Technique | Procedure | Limitations |
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Assessment of emissions and immunity - EMC emission standards | Overhead power lines and high voltage equipment | Corona onset and extinction voltage; Radio influence voltage measurement | Not applicable |
By the methods of - AS 60437 and IEC 60437 - Radio interference test on high-voltage insulators, IEC 61284 - Overhead Lines Requirements and Tests for Fittings, AS 62271 - High-voltage switchgear and control gear, AS 1154 - Insulator and conductor fittings for overhead power lines, AS 2650 - Common specifications for high-voltage switchgear and control gearstandard, AS/NZS CISPR 16.1 and AS/NZS CISPR 16.2 - Specification for radio disturbance and immunity measuring apparatus and methods, CISPR 18-1, CISPR 18-2 and CISPR 18-3 - Radio interference characteristics ofoverhead power lines and high-voltage equipment |
Radio influence voltage measurement and determination of corona onset and extinction voltages; Test voltage up to 400 kV |
The only data displayed is that deemed relevant and necessary for the clear description of the activities and services covered by the scope of accreditation.
Grey text appearing in a SoA is additional freetext providing further refinement or information on the data in the preceding line entry.
Accreditation No.
1
Site No.
14318
Print date
26 Jun 2022