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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NOTE 1 The type is iwc by the sample meter s intended for the type tests, whose characteristics reference current and reference voltage are chosen from the values given in the tables proposed by the manufacturer. When displaying the memory, the identification of each tariff applied shall be possible and, for automatic sequencing displays, each display of register for billing purposes shall be retained for a minimum of 5 s.

The type may have several values of reference current and reference voltage. Continuous and long duration electromagnetic phenomena are considered as influence quantities and the accuracy requirements are given in the relevant standard. Testing and measurement techniques — Section 4: Any divergence between the IEC Standard iex the corresponding national or regional standard shall be clearly indicated in the latter.

Where there is a difference between the definitions in the glossary ie those contained in product standards produced by TC 13, then the latter shall take precedence in applications of the relevant standard. No trace of corrosion likely to affect the functional properties of the eic shall be apparent.

These windows shall be of transparent material which cannot be removed undamaged without breaking the seal s. Testing and measurement techniques — Section 6: The manner of fixing the conductors to the terminals shall ensure adequate and durable contact such that there is no risk of loosening or undue heating.

It shall be impossible to reset the indication of the cumulative total of electrical energy during use. In the case of multiple ied presented by a single display it shall 62025 possible to display the content of all relevant memories. The protective earth terminal, if any: The change of error measured when the meter is back at nominal working temperature shall not exceed the limits given in Table 8.

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Metering equipment 1 Scope This part of IEC covers type tests for electricity metering equipment for indoor and outdoor application and applies to newly manufactured equipment designed to measure the electrical energy on 50 Hz or ief Hz networks, with a voltage up to V.

The application of the electrostatic discharge ifc not produce a change in the register of more than x units and the test output shall not produce a signal equivalent to more than x units. The holes in the insulating material which form an extension of the terminal holes shall be of sufficient size to also accommodate the insulation of the conductors.

Tests — Test Ea and guidance: During the test of a voltage circuit, the terminals of the other circuits and one of the terminals of the voltage circuit under test shall be connected to earth and the impulse voltage shall be applied between the other terminal of the voltage circuit and earth.

Any ingress of water shall be only in a quantity not impairing the operation of the meter. When the meter iwc not energized, the electronic display need not be visible. For a flush-mounted meter, the meter base may include the sides of the case. Please contact the Customer Service Centre see below for further information.

INTERNATIONAL STANDARD IEC 62052-11

During type tests, the dielectric strength tests are considered to be valid only for the terminal arrangement of the meter which has undergone the tests. Missing page numbers correspond to the Frenchlanguage pages. After these tests, there shall be no change at reference conditions in the percentage error of the meter greater than the uncertainty of the measurement and no mechanical damage to the equipment.

The test shall be carried out according to IECunder the following conditions: It comprises one or more magnets and their adjusting devices. A single electronic display may be used with multiple electronic memories to form multiple electronic registers.

NOTE Considering the electromagnetic environment of electricity metering equipment, the following phenomena are relevant: In this way, the two voltage terminals of the meter under test which are not affected by the earth fault are connected to 1,9 times the nominal phase voltages.

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The type test defined in 3. Current transformers IEC During the test, a temporary degradation or loss ice function or performance is acceptable. For electromechanical registers, register markings shall be indelible and easily readable.

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.

General terms relating to electrical measurements — Part They should not be ignited by thermal overload of live parts in contact with them.

INTERNATIONAL STANDARD IEC

Terminals of one current circuit are considered to be at the same potential. For example, edition numbers 1. NOTE 2 Values higher than 1 h should be the subject iex purchase contract. The appearance and, in particular, the legibility of markings shall not be altered.

Tests — Test Db and guidance: The active tariff rate shall be indicated. When the meter is operated from a current transformer sattention is drawn to the need to match the current range of the meter in relation to that of the secondary of the current transformer s.

If the test output is an optical test output, then it shall fulfil the requirements according 5. A recommended test sequence is given in Annex F. After the test, the meter shall show no damage and shall comply with the dielectric strength tests irc 7.

620552 the test, the duration of which shall be 2 h, the meter shall be exposed neither to draught nor to direct solar radiation.

NOTE Standards for reactive power apply for sinusoidal currents and voltages containing the fundamental frequency only. When the terminal arrangements differ, all the dielectric strength tests shall be carried out for each arrangement. For combined temperature and humidity test, see 6. General terms relating to measurements — Part