Buy DIN EN () Electricity Metering Equipment (a.c.) – Part 1: General Requirements, Tests And Test Conditions – Metering Equipment (class. BS EN Electricity metering equipment (a.c.). General requirements, tests and test conditions. Metering equipment (class indexes. Find the most up-to-date version of CEI EN at Engineering
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BS EN 50470-1:2006
It applies to electromechanical or static watt-hour meters for indoor and outdoor application, consisting of a measuring element and register s enclosed in a meter case. The tests shall be carried out according to ENunder the following conditions: Electromagnetic disturbances of long duration shall not cause 504701- additional percentage error more than the critical change values specified in the relevant particular requirements standards.
The test levels are regarded as minimum values to guarantee the proper functioning of the meter under normal working conditions. The construction of meters shall be such as to minimize the risks 50470–1 short-circuiting of the insulation between live parts and accessible conductive parts due to accidental loosening or unscrewing of the wiring, screws, etc.
EN – European Standards
The mechanical strength of the meter shall be tested with the following tests. Electricity metering equipment a. Equipement de comptage d’electricite c. The meter shall show no damage or change of information and shall operate correctly. Metering equipment class indexes A, B and C.
Testing and measurement techniques — Radiated, radio-frequency, electromagnetic field immunity test IEC If the terminal block is integral with the meter base, it is sufficient to carry out the test only on the terminal block. Expressions of the performance of electrical and electronic measuring equipment have been taken from EN For rack-mounted meters, the mechanical properties are not covered in this standard.
Dr If for any reason the insulation tests have to be repeated, then they may be 500470-1 on a new specimen. EN EN Electricity metering equipment a.
550470-1 Simulated solar radiation at ground level IEC A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
Longer retention time of the non-volatile memory should be the subject of purchase contract. For current circuits, the voltage is considered 504470-1 be the same as for the related voltage circuit. Immunity to electrostatic discharges This test is not applicable to electromechanical meters.
It also applies to operation indicator s and test output s. It is permissible to indicate the connection diagram by an identification figure in accordance with national standards.
EN – Electricity metering equipment (a.c.) — Part 1: General req –
50740-1 requirements, tests and test conditions – Metering equipment class indexes A, B and C – This European 504770-1 applies to newly manufactured watt-hour meters, measuring active electrical energy, intended for residential, commercial and light industrial use, for use on 50 Hz electrical networks. NOTE 2 Values higher than 4 h should be subject of purchase contract. Testing and measurement techniques — Voltage dips, short interruptions and voltage variations immunity tests IEC It generally comprises electromagnets with their control devices [IEC3.
Dr If the instrument transformers are taken into account in the meter constant, the transformer ratio s shall be marked.
Click to learn more. The test shall be carried out according to ENunder fn following conditions: Tests — Tests A: During the test, the duration of which shall be 2 h, the meter shall be exposed neither to draught nor to direct solar radiation.
Electricity metering – Data exchange for meter reading, tariff and load control – Part Metering equipment class indexes A, B and Wn Status: In the case of modifications to the meter made after the type test and affecting only part of the meter, it will be sufficient to perform limited tests on the characteristics that may be affected by the modifications.
Current transformers IEC The function of the meter shall not be impaired. Unless otherwise specified, for all these tests the meter shall be in its normal working position with the cover and terminal covers in place.
The SI unit for active power is the watt. During the test the behaviour of the equipment shall not be perturbed and the additional percentage error shall not exceed the critical change values specified in the relevant standards. Dr — — — meter in operating condition: Testing and measurement techniques — Electrostatic discharge immunity test IEC It is distributed for review and comments.
Standard symbols may also be used see EN Search all products by. Classification of groups of environmental parameters and their severities — Section 1: The minimum time between the impulses shall be 3 s.