Electricity metering. Payment systems - Particular requirements. Static payment meters for active energy (classes 1 and 2)
Electricity metering. Payment systems - Particular requirements. Static payment meters for active energy (classes 1 and 2)
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1 Scope This part of IEC 62055 applies to newly manufactured, static watt-hour payment meters of accuracy classes 1 and 2 for direct connection, for the measurement of alternating current electrical energy consumption of a frequency in the range 45 Hz to 65 Hz that include a load switch for the purpose of interruption or restoration of the electricity supply to the load in accordance with the current value of the available credit maintained in the payment meter . It does not apply to static watt-hour payment meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems). It applies to payment meters for indoor application only, where the payment meter shall be mounted as for normal service (i.e. together with a specified matching socket where a pplicable).
Payment meters are implementations where all the main functional elements are incorporated in a single enclosure, together with any specified matching socket . There are also multi-part installations where the various main functional elements, such as the measuring element, the user interface unit, token carrier interface, and the load switch are implemented in more than one enclosure, involving additional interfaces. This part of IEC 62055 does not apply to multi-part payment metering installations . Functional requirements that apply to payment meters
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