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IEC 62052 PDF

INTERNATIONAL. STANDARD. IEC. First edition. Electricity metering equipment (a.c.) –. General requirements, tests and test conditions –. IEC ELECTRICITY METERING EQUIPMENT (A.C.) – GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS – PART METERING. Buy IEC Ed. Electricity metering equipment (AC) – General requirements, tests and test conditions Part Metering equipment from SAI Global.

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Slight damage which does not impair the protection against indirect contact or the penetration of solid objects, dust and water is acceptable. The case shall be so constructed and arranged that any non-permanent deformation cannot prevent the satisfactory operation of the meter. The text of this standard is based on the following documents: If the meter is of a special type for example in the case of a multi-rate meter, if the voltage of the changeover device differs from the reference voltagethis shall be specified on the name-plate or on a separate plate.

The clearance and creepage distances between terminals of circuits with reference voltages over 40 V shall not be less than stated in Table 3a. Standard symbols may also be used see IEC The test shall be carried out according to IECunder the following conditions: If the meter terminals are marked, this marking shall appear on the diagram.

If the test output is an optical test output, then it shall fulfil the requirements according 5. Salt mist IEC The operation indicator, if fitted, shall be visible from the front. NOTE 3 The ratio of the highest to the lowest basic speed of the rotors of each of the meters of the same type shall not exceed 1,5.


ic General concepts IEC When the voltage is restored, the meter shall not have suffered degradation of its metrological characteristics. Information under points ab and c may be marked on an external plate permanently attached to the meter cover.

For dated references, only the edition 26052 applies. Documents Flashcards Grammar checker. The test shall be carried out according to IECwith the following temperatures: The type may have several values of reference current and reference voltage.


This standard distinguishes between — meters intended to be used indoors and outdoors; and — protective class I and protective class II meters.

For polyphase meters, this diagram shall also show the phase sequence for which the meter is intended.

For current circuits, the voltage is considered to be the same as for the related voltage circuit. NOTE For meters for special use in corrosive atmospheres, additional requirements ifc be fixed in the purchase contract for example salt mist test according to IEC Symbols originals IEC 62502 Please tell us in what capacity ies you bought the standard tick all that apply. The change of error measured when the meter is back at nominal working temperature shall not exceed the limits given in Table 8.

To make sure that we continue to meet your needs, your feedback is essential. Surge immunity test IEC The other auxiliary circuits shall not be tested.

Testing and measurement techniques — Section 2: During the test, a temporary degradation or loss of function or performance is acceptable, nevertheless the variation of the error shall be within the limits as specified in the relevant standard.

During the test, the behaviour of the equipment shall not be perturbed and the variation of the error shall be within the limits as specified in the relevant standards.


For electromechanical registers, register markings shall be indelible and easily readable. Modulated and unmodulated output pulses are permitted. The auxiliary circuits with a reference voltage below or equal to 40 V shall be connected to earth.

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If the terminal block is integral with the meter base, it is sufficient to carry out the test only on the terminal block. For each test, the impulse voltage is applied ten times with one polarity and then repeated with the other polarity.

It generally comprises electromagnets with their control devices. General terms relating to measurements — Part Static meters for reactive energy classes 2 and 3 Replaces particular requirements of IEC If the instrument transformers are taken into account in the meter constant, the transformer ratio s shall be marked.

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Stationary use at weatherprotected locations Amendment 1: The unmodulated output pulses shall have the shape shown in Figure D. All parts intended to be earthed shall be earthed. NOTE Considering the electromagnetic environment of electricity metering equipment, the following phenomena are relevant: Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt 60252 may participate in this preparatory work.

Immunity to conducted disturbances, induced by radio-frequency fields IEC