Only a very small number of global test houses currently have the testing of power quality meters in their portfolio. Of these providers, NMi is the only independent lab that is fully ISO17025 accredited. At the end of June, the Dutch Accreditation Council granted us official recognition to perform all the conformity assessment tests for Class A & S instruments in accordance with IEC 61000-4-30 including IEC 62,586-2, the product standard for the power quality meters used by us.
Tested power quality meters, stable network
More and more Utilities are using power quality meters to monitor the quality of their network. When purchasing power quality meters, they are faced with the difficult choice of selecting manufacturer(s). Major investments are often involved and it is therefore important to make a properly substantiated decision.
Since the beginning of this year, we have been offering a new service to provide this substantiation: the testing of power quality meters in accordance with the IEC 61000-4-30 standard, a harmonised document that guarantees the measurement quality. This service has now been accredited, thereby guaranteeing that the tests are performed in the most reliable manner.
Identical readings can be expected from power quality meters if they are in full compliance with the specific requirements described in IEC 61000-4-30 edition 3. Manufacturers are thus able to demonstrate that their meters are both reliable and worth the investment.
Accredited test results
The Certificates of Conformity and associated test reports that we issue from today for power quality meters, all include the logo of the Dutch Accreditation Council, thus evidencing that all power quality tests are conducted by an accredited and certified test lab. This of course gives the certificates considerable added value for meter manufacturers who want to differentiate their products and require independent verification for their instrument.