IEC 62053-41-2021 pdf free download – Electricity metering equipment – Particular requirements – Part 41: Static meters for DC energy (classes 0,5 and 1).
This part of lEC 62053 applies only to static watt-hour meters of accuracy classes 0,5 and 1 forthe measurement of DC electrical energy in DC systems, and it applies to their type tests only.
NOTE 1 For other general requirements,such as safety，dependablity，etc., see the relevant pars of lEC 62052orlEC 62059.
This document applies to electricity metering equipment designed to:
measure and control electrical energy on electrical networks with two poles where one of
the poles is connected to earth and with voltage up to 1 500 v DC;
NOTE 2 There are DC networks with other configurations or with more than 2 poles (for example networks withearth and both a positive and a negative pole).
have all functional elements,including add-on modules，enclosed in, or forming a single
meter case with the exception of indicating displays;
operate with integrated or detached indicating displays, or without an indicating display;be installed in a specified matching socket or rack;
optionally，provide additional functions other than those for measurement of electricalenergy.
The electricity metering equipment covered by this document may be used for measuring DCelectrical energy in the following, or similar, application areas:
in EV (electrical vehicle)charging stations or in EV charging infrastructures，if themeasurement is placed on the DC side;
in information technology (IT) server farms;
in Dc supply points for communication equipment;
in low voltage DC networks for residential or commercial areas, if the measurement is placed
on the DC side;
in solar PV(photovoltaic) systems where DC power generation is measured;. in DC supply points for public transport networks (e.g. trolleybus, etc.).
Meters designed for operation with low power instrument transformers, LPITs as defined in the
IEC 61869 series，may be tested for compliance with this document only if such meters andtheir LPITs are tested together and meet the requirements for directly connected meters.
NOTE 3 Modern electicity meters typically contain additional functions such as measurement of voltage magnitude,current magnitude，power，etc:;measurement of power quality parameters;load control functions; delivery， time,test,accounting，recording functions; data communication interfaces and associated data security functions. Therelevant standards for these functions may apply in addition to the requirements of this document. However， therequirements for such functions are outside the scope of this document.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies.
For undated references，the latest edition of the referenced document (including anyamendments) applies.
IEC 61000-4-19:2014, Electromagnetic compatibility(EMC) – Part 4-19: Testingandmeasurement techniques -Test for immunity to conducted, differential mode disturbances and
signalling in the frequency range 2 kHz to 150 kHz at a.c. power ports
IEC 62052-11:2020， Electricity metering equipment – General requirements,tests and testconditions – Part 11: Metering equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in lEC 62052-11:2020, aswell as the following, apply.
lSO and lEC maintain terminological databases for use in standardization at the followingaddresses:
.IEC Electropedia website: http://www.electropedia.orgl
.Iso Online Browsing Platform website: http://www.iso.orglobp
3.1
direct current systemDC system
electrical system fed by unidirectional voltage
[SOURCE: IEC 60050-601:1985,601-01-04]
3.2
direct current
electric current that is time-independent or, by extension, periodic current the direct componentof which is of primary importance.IEC 62053-41 pdf download.