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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Please assess the standard in the following categories, using the numbers: During the test of a current circuit, the terminals of the other circuits shall be connected to earth and the impulse voltage shall be applied between one of the terminals of the current circuit and earth.
After iex test, the meter shall show no damage and shall comply with the dielectric strength tests of 7. During the test, the duration of which shall be 2 h, the meter shall be exposed neither to draught nor to direct solar radiation. For this range, relaxed accuracy requirements may be specified 3.
INTERNATIONAL STANDARD IEC 62052-11
The change of error measured when the meter is back at nominal working temperature shall not exceed the limits given in Table 8. 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. Tests — Test Sa: The register shall be able to record and display, starting from zero, for a minimum of 1 h, the energy corresponding to maximum current at reference voltage and unity power factor.
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 Isc or 60 Hz networks, with a voltage up to V. NOTE 1 Longer retention time of the non-volatile memory should be the subject of a purchase contract.
Short duration electromagnetic phenomena are considered as disturbance according to the definition given in 3. An 60252 pulse transmission 2 is achieved when, under test conditions, the receiving head is aligned with its optical axis on the optical pulse output. This standard distinguishes between — meters intended to be used indoors and outdoors; and — protective class I and protective class II meters.
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In the case of an electronic display the corresponding non-volatile memory shall have a minimum retention time of four months. The active tariff rate shall be indicated. For rack-mounted meters, the mechanical properties are not covered in this standard. 62025 each test, the impulse voltage is applied ten times with one polarity and then repeated with the other polarity. For the terminal block and terminal cover of such a meter, reinforced insulation is sufficient.
The tests shall be carried out under the following conditions: The contact with the glow wire may occur at any random location. Testing and measurement techniques — Section 6: Types of electrical measuring instruments — Part 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.
Consolidated editions 662052 IEC is now publishing consolidated versions of its publications. Electrical connections shall be so designed that contact pressure is not transmitted through insulating material. The committee has decided that the contents of this publication will remain unchanged until 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.
The maximum current of the meter is 1,2 I n1,5 I n or 2 I n. For combined temperature and humidity test, see 6. For current circuits, the voltage 60252 considered to be the same as for the related voltage circuit. Specific terms according to the type of instrument IEC 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 The terminal cover shall enclose the actual terminals, the conductor fixing 62502 and, unless otherwise specified, a suitable length of the external conductors and their insulation.
The insulating properties of laquer, enamel, ordinary paper, cotton, oxide film on metal parts, adhesive film and sealing compound, or similar unsure materials, shall not be regarded as sufficient for supplementary insulation.
For dated references, only the edition cited applies. NOTE 2 Values higher than 1 h should be the subject of purchase contract. It is usually designed and operated to obtain the highest accuracy and stability in a controlled laboratory environment 3. Information on the subjects under consideration and work in progress iwc by the technical committee which has prepared this publication, as well as the list of publications issued, is also available from the following: Is my electricity meter single phase or three phase?
The clearance and creepage distances between terminals of circuits with reference voltages over 40 V shall not be less than stated in Table 3a. Tests — Tests A: Simulated solar radiation at ground level IEC Outdoor meters shall withstand solar radiation.
The meter shall show no damage or change of information and shall operate correctly. The cover shall not be removable without the use of a tool. When the meter is not energized, the electronic display need not be visible. It comprises one or more magnets and their adjusting devices. Current transformers IEC If the meter has a measuring element for more than one type of energy multi-energy metersor when other functional elements, such as maximum demand indicators, electronic tariff registers, time switches, ripple control receivers, data communication interfaces, etc.
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