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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It shall be impossible to reset the indication of the cumulative total of electrical energy during use.
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The type test defined in 3. Salt mist IEC For rack-mounted meters, the mechanical properties are not covered in this standard.
In the case of an electronic display the corresponding non-volatile memory shall have a minimum retention time of four months. The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. During the test, a temporary degradation or loss of function or performance is acceptable. For polyphase meters, this diagram shall also show the phase sequence for which the meter is intended.
The protective earth terminal, if any: The distance of the optical pulse output from further adjacent ones or from an optical status display shall be sufficiently long that the transmission is not affected. After installation, it shall not be possible to loosen the protective earth terminal without the use of a tool.
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 60 Hz networks, with a voltage up to V.
NOTE The type is represented 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.
The contact with the glow wire may occur at any random location. When the voltage is restored, the meter shall not have suffered degradation of its metrological characteristics. The terminals of the circuits which are not subjected to impulse voltage shall be connected to earth.
The distortion factor is usually expressed as a percentage 3. For combined temperature and humidity test, see 6. The impulse voltage shall be applied between all the electric circuits and earth. Metering equipment This English-language version is derived from the original bilingual publication by leaving out all French-language pages.
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. Immunity to conducted disturbances, induced by radio-frequency fields IEC NOTE 2 Where the number of ampere-turns would lead to a number of turns other than a whole number, the product of the number of turns of the windings by the value of the basic current may differ from that of the sample meter s representative of the type.
For undated references, the latest edition of the referenced document including any amendments applies.
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NOTE For meters for special use in corrosive atmospheres, additional requirements shall be fixed in the purchase contract for example salt mist test according to IEC 662052 The clearance and creepage distances between terminals of circuits with reference voltages over 40 V shall not be less than stated in Table 3a.
When the terminal arrangements differ, all the dielectric strength tests shall be carried out for each arrangement. NOTE For areas where overhead supply networks are predominant, a higher peak value than given in Tables 3a and 3b of the test voltage may be required. Testing and measurement techniques — Section 4: The auxiliary circuits with a reference voltage below or equal to 40 V shall be connected to earth.
Electrostatic discharge immunity test. During this test no flashover, disruptive discharge or puncture shall occur.
Static meters for reactive energy classes 2 and 3 Replaces particular requirements of IEC Examples of markings are shown in Table 4. The 6202 collaborates closely with the International Organization for Standardization ISO in accordance with conditions determined by agreement between the two organizations. The damp heat test also serves as a corrosion test. Short duration electromagnetic phenomena are considered as disturbance according to the definition given in 3.
Information under points d to k shall be marked on a name-plate preferably placed within the meter.
INTERNATIONAL STANDARD IEC 62052-11
Testing and measurement techniques — Section Any protective coating shall not be liable to damage by ordinary handling nor damage due to exposure to air, under normal working conditions. Expression of the performance of electrical and electronic measuring equipment has been taken from IEC Testing and measurement techniques — Section 2: Each type has one designation only.
For current circuits, the voltage is considered to be the same as for the related voltage circuit. The type may have several values of reference current and reference voltage.
On-line information is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda. An optimum pulse transmission 2 is achieved when, under test conditions, the receiving head is aligned with its optical axis on the optical pulse output.
The meter shall withstand the impulse voltage test and the a.