Western Power Metering

Site

Metering Services Section – Technical Services Group – Electrical Standards Laboratory

Accreditation No.

47

Site No.

40

Date of Accreditation

12 Nov 1951

Address

114 Ayres Road
Forrestdale, WA 6112
Australia

westernpower.com.au

Contact

Mr C Black P: +61 (08) 93597522

Availability

Services not available to external clients

Scope of Accreditation

Print scopes
Metering Services Section – Technical Services Group – Electrical Standards Laboratory

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
Service Product Determinant Technique Procedure Limitations
DC and low frequency electrical metrology - Electrical instrument calibrators Instrument calibrators AC current; AC voltage; DC current; DC voltage; Resistance Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

DC voltage

0.001% + 0.1 μV up to 1.1 kV

AC voltage   

0.1% at 30 mV from 30 Hz to 40 Hz
0.03% from 0.03 V to 0.1 V and 30 Hz to 40 Hz
0.02% from 0.1 V to 1 V and 30 Hz to 40 Hz
0.01% from 1 V to 100 V and 30 Hz to 40 Hz
0.02% from 100 V to 219 V and 30 Hz to 40 Hz
0.1% from 1 mV to 2.2 mV and 40 Hz to 20 kHz
0.02% from 2.2 mV to 300 mV and 40 Hz to 20 kHz
0.006% from 300 mV to 219 V and 40 Hz to 20 kHz
0.005% from 220 V to 1000 V and 50 Hz to 1 kHz
0.5% from 3 mV to 10 mV and 20 kHz to 100 kHz
0.2% from 10 mV to 30 mV and 20 kHz to 100 kHz
0.1% at 30 mV from 20 kHz to 100 kHz
0.03% from 0.03 V to 0.1 V and 20 kHz to 50 kHz
0.06% from 0.03 V to 0.1 V and 50 kHz to 100 kHz
0.04% from 0.1 V to 0.3 V and 20 kHz to 100 kHz
0.03% from 0.3 V to 1 V and 20 kHz to 100 kHz
0.02% from 1 V to 219 V and 20 kHz to 100 kHz

DC current
0.002% + 0.1 μA up to 100 mA
0.01% from 100 mA to 20 A
0.05% from 20 A to 150 A
0.2% from 15 A to 4 000 A

AC current
0.015% from 5 mA to 20 A at 50 Hz
0.025% from 5 mA to 20 A and 50 to 400 Hz
0.1% from 20 A to 20 kA at 50 Hz

Resistance

0.05% or 0.1 μΩ (whichever is greater) up to 1 mΩ
0.02% from 1 mΩ to 1 Ω
0.0007% from 1 Ω to 100 kΩ (decade values)
0.002% from 1 Ω to 100 kΩ
0.003% from 100 kΩ to 1 MΩ
0.005% from 1 MΩ to 10 MΩ
0.05% from 10 MΩ  to 100 MΩ
0.5% from 100 MΩ to 1 GΩ
3% from 1 GΩ to 300 GΩ

DC and low frequency electrical metrology - Electrical measurement and test equipment Ammeters; Appliance testers; Current clamps; Digital multimeters (DMM); Power analysers; Residual current devices (RCD) testers; Watt meters AC current; DC current Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

DC ammeters

Including clamp-on meters using multiple turns technique

0.002% + 0.1 μA up to 100 mA
0.01% from 100 mA to 20 A
0.05% from 20 A to 150 A
0.2% from 150 to 4 000 A

AC ammeters

Including clamp-on meters using multiple turns technique
0.015% from 5 mA to 20 A at 50 Hz
0.025% from 5 mA to 20 A and 50 to 400 Hz
0.1% from 20 A to 20 kA at 50 Hz



Appliance testers; Digital multimeters (DMM); Galvanometers and null detectors; Ohm meters; Residual current devices (RCD) testers; Watt meters Resistance Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

including insulation testers to 10 kV

0.05% or 0.1 μΩ (whichever is greater) up to 1 mΩ
0.02% from 1 mΩ to 1 Ω
0.0007% from 1 Ω to 100 kΩ (decade values)
0.002% from 1 Ω to 100 kΩ
0.003% from 100 kΩ to 1 MΩ
0.005% from 1 MΩ to 10 MΩ
0.05% from 10 MΩ to 100 MΩ
0.5% from 100 MΩ to 1 GΩ
3% from 1 GΩ to 300 GΩ

Appliance testers; Digital multimeters (DMM); Power analysers; Residual current devices (RCD) testers; Voltmeters; Watt meters AC voltage; DC voltage Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

DC voltmeters

0.001% + 0.1 μV up to 1.1 kV

AC voltmeters

0.1% at 30 mV from 30 Hz to 40 Hz
0.03% from 0.03 V to 0.1 V and 30 Hz to 40 Hz
0.02% from 0.1 V to 1 V and 30 Hz to 40 Hz
0.01% from 1 V to 100 V and 30 Hz to 40 Hz
0.02% from 100 V to 219 V and 30 Hz to 40 Hz
0.1% from 1 mV to 2.2 mV and 40 Hz to 20 kHz
0.02% from 2.2 mV to 300 mV and 40 Hz to 20 kHz
0.006% from 300 mV to 219 V and 40 Hz to 20 kHz
0.005% from 220 V to 1000 V and 50 Hz to 1 kHz
0.5% from 3 mV to 10 mV and 20 kHz to 100 kHz
0.2% from 10 mV to 30 mV and 20 kHz to 100 kHz
0.1% at 30 mV from 20 kHz to 100 kHz
0.03% from 0.03 V to 0.1 V and 20 kHz to 50 kHz
0.06% from 0.03 V to 0.1 V and 50 kHz to 100 kHz
0.04% from 0.1 V to 0.3 V and 20 kHz to 100 kHz
0.03% from 0.3 V to 1 V and 20 kHz to 100 kHz
0.02% from 1 V to 219 V and 20 kHz to 100 kHz



Electricity meters; Power analysers; Varmeters; Watt meters Active power; Reactive power Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

Watthour meters

0.01%/cosΦ from 63.5 V up to 250 V and 125 A from 47 to 60 Hz (single phase)
0.02%/cosΦ from 63.5 V up to 440 V and 125 A from 47 to 60 Hz (three phase)

Varhour meters

0.05% from 63.5 V up to 250 V and 125 A at zero power factor and 50 Hz (single phase)
0.15% from 63.5 V up to 250 V and 125 A at 0.866 power factor and 50 Hz (single phase)
0.2% from 63.5 V up to 440 V and 125 A at zero power factor an 50 Hz (three phase)
0.5% from 63.5 V up to 440 V and 125 A at 0.866 power factor and 50 Hz (three phase)

Wattmeters
0.03%/cos φ up to 250 V and 125 A at 50 Hz


Phase angle meters; Power analysers; Power factor meters Phase angle; Power factor Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability  of -

Phase angle meters

0.3º from -180º to 180º
Power factor meters
0.005 from 1 to 0


DC and low frequency electrical metrology - Electrical standards AC/DC transfer instruments Current; Voltage Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

0.01% from 250 mV to 1kV at 50 Hz
0.02% from 250 mV to 1 kV and 50 Hz to 400 Hz
0.015% from 5 mA to 20 A at 50 Hz
0.025% from 5 mA to 20 A and 50 Hz to 400 Hz


Conductance boxes; Current shunts; Precision resistors; Resistance boxes Resistance Direct measurement against a reference standard

Precision resistors, resistance boxes and conductance boxes

Up to 1 mΩ and from 1 mΩ to 300 GΩ

DC shunts
Up to 1 000 A

Capability

With Calibration and Measurement Capability of -

0.05% or 0.1 μΩ (whichever is greater) up to 1 mΩ
0.02% from 1 mΩ to 1 Ω
0.0007% from 1 Ω to 100 kΩ (decade values)
0.002% from 1 Ω to 100 kΩ
0.003% from 100 kΩ to 1 MΩ
0.005% from 1 MΩ to 10 MΩ
0.05% from 10 MΩ to 100 MΩ
0.5% from 100 MΩ to 1 GΩ
3% from 1 GΩ to 300 GΩ


Current shunts Current Comparison with a reference standard

Capability

With Calibration and Measurement Capability of -
0.015% from 5 mA to 20 A at 50 Hz
0.025% from 5 mA to 20 A at 50 Hz to 400 Hz
0.1% from 20 A to 20 kA at 50 Hz

Voltage ratio boxes Voltage Comparison with a reference standard

Capability

With Calibration and Measurement Capability of -
0.001% up to 1 000V dc
Voltage standards - E.M.F. reference devices; Voltage standards - Standard cells Voltage Direct measurement against a reference standard

Capability

with Calibration and Measurement Capability of -

Standard cells

5 μV

Electronic e.m.f.reference devices

5 μV/V at 1 V, 1.018 V and 10 V

Time and frequency metrology - Frequency, time and waveform measuring equipment Counters; Time interval meters Frequency; Time interval Measurement against reference standard

Capability

with Calibration and Measurement Capability of -

Counters

1 in 108 from 1 Hz to 10 MHz

Time interval meters

1 in 10⁸ + 0.1 μs from 1 μs to 104s


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.