EN 50470-1 PDF

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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EN – Electricity metering equipment (a.c.) — Part 1: General req –

The effect of transient electromagnetic disturbances shall be such that: An insulation test according to 7. Dr If the instrument transformers are taken into account in the meter constant, the transformer ratio s shall be marked. General requirements, tests and test conditions – Metering equipment class indexes A, B and C.

Slight damage, which does not impair the protection against indirect contact or the penetration of solid objects, dust and water is acceptable. Take the smart route to manage medical device compliance.

This standard distinguishes between: If the terminal block is integral with the meter base, it is sufficient to carry out the test only on the terminal block. You may experience issues viewing this site in Internet Explorer 9, 10 or The test levels are regarded as minimum values to guarantee the proper functioning of the meter under normal working conditions.

In this case, the adjustment of the amplifier must be controlled by a field sensor. Information on cookies usage. Electricity metering – Data exchange for meter reading, tariff and load control – Part The SI unit for active power is the watt. Particular requirements – Static payment meters for active energy classes 1 and 2. After the test, the meter shall show no damage and shall comply with the dielectric strength tests of 7.

The auxiliary circuits with a reference voltage below or equal to 40 V shall be connected to earth. Equipement de comptage classes de precision A, B et C. Objects cannot be created from editing field codes. Individual instruction manuals are not necessarily required.

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BS EN 50470-1:2006

To comply therewith they shall fulfil the following test. If contact discharge is not applicable because no metallic parts are outside, then apply air discharge with a 15 kV test voltage.

Classification of groups of environmental parameters and their severities — Section 1: Electromagnetic disturbances of long duration shall not cause an additional percentage error more than the critical change values specified in the relevant particular requirements standards. When the terminal arrangements differ, all the dielectric strength tests shall 504701 carried out for each arrangement.

Equipement de comptage d’electricite c. It does not apply to: Simulated solar radiation at ground level IEC Tests — Test Ka: In the case of multiple values presented by a single display it shall be possible to display the content of all relevant memories.

EN – European Standards

During the test, the quality of the insulation shall not be impaired by dust or abnormal humidity. The insulating fn of lacquer, 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. Specific terms according to the type of instrument Graphical symbols for use on equipment Electromagnetic compatibility EMC — Part Unless otherwise specified, for ne these tests the meter shall be in its normal working position with the cover and terminal covers 550470-1 place.

Unless otherwise specified, the normal conditions for insulation tests are: 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.

It may be a single-position socket for one meter or a multiple-position socket for two or more meters [IEV modified] aft 3. The damp heat test also serves as a corrosion test.

Testing and measurement techniques — Voltage dips, short interruptions and voltage variations immunity tests IEC The principal unit for the measured values shall be the kilowatt-hour kWhor the megawatt-hour MWh. In this subclause, the expression “all the terminals” means the whole set of terminals of the current circuits, voltage circuits and, if any, auxiliary circuits having a 504701 voltage over 40 V.

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In the case of modifications to the meter made after rn type test and affecting only part of the meter, it will 54070-1 sufficient to perform limited tests on the characteristics that may be affected by the modifications.

Dr — — — — — — variant 1; upper temperature: Where the terminal cover makes it possible, the conductive foil shall approach the terminals and the holes for the conductors within a distance rn not more than 2 cm. The minimum time between the impulses shall be 3 s.

EN 50470-1:2006

An influence quantity is a disturbance if for that influence quantity the rated operating conditions are not specified 3. Longer retention time of the non-volatile memory should be the subject of purchase contract. The result of the test is satisfactory if the meter fn and terminal cover do not sustain damage, which could affect the function of the meter and it is not possible to touch live parts.

For example 550470-1 test set-up see Figure 504470-1. The components shall be reliably fastened and secured against loosening. It is distributed for review and comments. The mechanical strength of the meter shall be tested with the following tests.

It is advisable to choose the next number immediately above or below in order to have whole numbers of turns. Tests — Test Eh: Any protective coating shall not be liable to damage by ordinary handling nor damage due to exposure to air, under normal working conditions.

Dr The operation indicator, if fitted, shall be visible from the front.