This part of IEC 62586 specifies product and performance requirements for instruments whose functions include measuring, recording and possibly monitoring power quality parameters in power supply systems, and whose measuring methods (class A or class S) are defined in IEC 61000-4-30.
These requirements are applicable in single, dual- (split phase) and 3-phase a.c. power supply systems at 50 Hz or 60 Hz.
These instruments can be used:
in the generation, transmission and distribution of electricity, for example inside a power station, substation or a distributed generator connection.
at the interface point between the installation and the network, e.g. in order to check the compliance of the connection agreement between a network operator and the customer.
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