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C.2.2.1 The TV receiver is fed by an r.f. TV input signal with a level of 65 dB(pV) across 75 Q and with the following test modulations.

1. Color television

Radio-frequency signal: a full TV signal with modulated picture chrominance and sound carrier:

• the sound modulation factor is 54 % at 1 000 Hz;

• the picture modulation content is a color bar test pattern according to Recommendation ITU-R ВТ.471-1:

• 100 % reference white level bar;

• 0 % reference black level bar;

• 75 % amplitude (reference made to the white level); and

• 100 % saturation.

2. Monochrome television

Radio-frequency signal: a full TV signal with modulated picture and sound carrier:

• sound modulation: see item a) above;

• the picture modulation is a monochrome test pattern with a black and white level according to item a) and an average overall picture content of 50 % of the reference white level.

C.2.2.2 The receiver shall be tuned according to IEC 60107-1.

The white reference level corresponds to 80 cd/m² and the black level to less than 2 cd/m².

The magenta bar corresponds to 30 cd/m².

The volume control is set in such a manner that one-eighth of rated output power is obtained, measured at the loudspeaker terminals, at a frequency of 1 000 Hz. In the case of stereophonic equipment, this output shall be present at both outputs.

NOTE For devices that operate on base-band signals, suitable video and audio input signals should be used, and the same settings made for brightness, contrast and volume controls.

C.3 Test conditions for audio amplifiers

C.3.1 Conditions

Audio amplifiers which draw a supply current which varies less than 15 % of the maximum current with input signal voltages between zero and a rated source e.m.f. (as defined in IEC 60268-3) shall be tested with no input signal.

Other audio amplifiers shall be tested under the following conditions:

• rated supply voltage;

• normal position of user controls. In particular, any controls affecting the frequency response set to give the widest flat response achievable;

• input signals and loads as given in C.3.2.

C.3.2 Input signals and loads

The following test procedure applies.

1. Connect suitable resistors, equal to the rated load impedance(s), to each amplifier output for supplying loudspeakers. To monitor the output voltage waveform of the audio amplifier of a powered loudspeaker, the audio analyzer/oscilloscope is connected to internal wiring at a point representing the electrical output of the amplifier.

NOTE 1 In the case of powered loudspeakers with internal audio amplifiers, the load is the loudspeaker and associated crossover network.

2. Apply a sinusoidal signal at 1 kHz (see Note 2) to a suitable input. For multi-channel amplifiers in which the surround sound channel amplifiers cannot be alternatively used as a second set of left and right channel amplifiers, set the controls so that the surround sound channel amplifiers are supplied with signal at a level 3 dB lower than the signal applied to the left and right channels.

NOTE 2 For products not intended to reproduce 1 kHz signals, a frequency geometrically centred within the reproducing bandwidth of the amplifier is applied.

3. Adjust the input signal and/or amplifier gain control(s) so as to obtain an output signal for the left and right channels having 1 % total harmonic distortion, simultaneously. If 1 % total harmonic distortion cannot be obtained, adjust the signal voltage and/or gain controls to obtain the highest achievable power output at each output simultaneously. Confirm that the output signals of the surround sound channel amplifiers are 3 dB lower than the output signal at the outputs of the left and right channels.

4. Measure the output voltages of all channels and then readjust the input signal voltage and/or controls to obtain voltages of 0,354 (1Л/8) times the voltages obtained at the end of step c) above.

5. In the case of products with provision for connection to external loudspeakers, proceed as specified in 6.2.

For products with internal loudspeakers and without provision for connection to external loudspeakers, note the r.m.s. output voltage of the sinusoidal signal at the output of each amplifier. Substitute the sinusoidal signal by a pink noise signal, bandwidth-limited as specified in 6.1 of IEC 60268-1. Confirm the r.m.s. value of the pink noise signal as it appears at the output of each amplifier output is equal to the r.m.s. value of the sinusoidal waveform for that channel set as in step d) above. Proceed as specified in 6.2.С.4 Test conditions for video-cassette recorders

Measurements shall be made in the playback mode with the standard tape speed.

C.5 Test conditions for lighting equipment

C.5.1 General conditions

Measurements shall be made in a draught-free atmosphere and at an ambient temperature within the range from 20 °С to 27 °С. During measurement the temperature shall not vary by more than 1 K.

C.5.2 Lamps

Discharge lamps shall be aged for at least 100 h at rated voltage. Discharge lamps shall be operated for at least 15 min before a series of measurements is made. Some lamp types require a stabilization period exceeding 15 min. Information given in the relevant IEC lamp performance standard shall be observed.

During ageing, stabilization and measurement, lamps shall be installed as in normal use. Self­ballasted lamps shall be operated in cap-up position.

C.5.3 Luminaires

The luminaire is measured as manufactured. It shall be tested with reference lamps, or with lamps having electrical characteristics close to their nominal values. In case of doubt measurements are made with reference lamps. When the luminaire incorporates more than one lamp, all lamps are connected and operated during the test. When the luminaire is assigned for use with more than one type of lamp, measurements shall be made with all the types and the luminaire shall comply each time. In the case where the luminaire is equipped with a glow starter, a starter in accordance with IEC 60155, shall be used.

Incandescent lamp luminaires which do not incorporate an electronic transformer or a dimming device are deemed to fulfil the harmonic current requirements and need not be tested.

If separate tests with reference lamps have proved that ballasts for fluorescent or other discharge lamps or step-down converters for tungsten halogen or other filament lamps, comply with the requirements, the luminaire is deemed to comply with these requirements and need not be checked. Where these components have not been approved separately, or do not comply, the luminaire itself shall be tested and shall comply.

If a luminaire has a built-in dimming device, the harmonic currents shall be measured at the maximum load of the lamps as specified by the manufacturer. The setting of the dimming device is varied in five equidistant steps between the minimum and the maximum power in order to obtain comprehensive results.

C.5.4 Ballasts and step-down converters

Ballast for fluorescent or other discharge lamps or step-down converters for tungsten halogen or other filament lamps shall be tested with reference lamps, or with lamps having electrical characteristics close to their nominal values. In case of doubt, measurements are made with reference lamps.

In the case where a ballast can be used, with or without a series capacitor, or where a ballast or step-down converter is designed for several types of lamps, the manufacturer shall indicate in his catalogue for which type of circuit and lamps the ballast fulfils the harmonic requirements, and the ballast shall be tested accordingly.

C.6 Test conditions for independent and built-in incandescent lamp dimmers

The dimmer is tested with incandescent lamps having the maximum power allowed for the dimmer. The control is set to firing-angle of 90° ± 5°, or if controlled by steps, to that step closest to 90°.

C.7 Test conditions for vacuum cleaners

The air inlet of the vacuum cleaner is adjusted according to normal operation as defined in IEC 60335-2-2.

Vacuum cleaners with electronic control shall be tested in three modes of operation, each for an identical time interval that is at least 2 min long, with the control adjusted:

• to maximum input power,

• to 50 % ± 5 % of the maximum active input power, or, if that is not possible (e.g. controlled in steps), to the point closest to 50 % that is supported by the equipment design,

• and to minimum input power.

These three time intervals need not be consecutive, but the application of limits according to 6.2.3.4 is done as if the intervals were consecutive. In that case, the entire test observation period is made up of the three identical time intervals, without taking into account harmonic current values outside these three intervals.

If the vacuum cleaner includes a control to select a temporary high-power ('booster') mode of operation, which automatically returns to a lower power mode, this high-power mode is not considered for the calculation of the average values. This mode shall be tested only against the limits for single 1,5 s smoothed r.m.s. values (see 6.2.3.4).

C.8 Test conditions for washing machines

The washing machine shall be tested during a complete laundry program incorporating the normal wash-cycle, filled with the rated load of double hemmed, pre-washed cotton cloths, size approximately 70 cm x 70 cm, dry weight from 140 g/m² to 175 g/m².

The temperature of the fill water shall be

• 65 °С ± 5 °С for washing machines without heating elements and intended for connection to a hot water supply;

• from 10 °С to 25 °С for other washing machines.

For washing machines with a programmer, the 60 °С cotton programme without pre-wash, if available, shall be used, otherwise the regular wash programme without pre-wash shall be used. If the washing machine contains heating elements which are not controlled by the programmer, the water shall be heated to 65 °С ± 5 °С before starting the first wash period.

If the washing machine contains heating elements and does not incorporate a programmer, the water shall be heated to 90 °С ± 5 °С or lower if steady conditions are established, before starting the first wash period.

C.9 Test conditions for microwave ovens

The microwave oven is tested with 100 % nominal power. It is operated with a potable water load of initially 1 000 g ± 50 g in a cylindrical borosilicate glass vessel, having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm. The load is placed at the centre of the shelf.

C.10 Test conditions for information technology equipment (ITE)

C.10.1 General conditions

ITE (including personal computers) which is marketed without “factory-fitted options” and without expansion slot capabilities is tested as supplied. ITE, other than personal computers, which is marketed with “factory-fitted options” or has expansion slots, is tested with additional loads in each expansion slot that result in the maximum power consumption attainable using the “factory-fitted options” specified by the manufacturer.

For the testing of personal computers with up to 3 expansion slots, load cards configured for the maximum permitted power for each expansion slot shall be added to each respective expansion slot. For the testing of personal computers with more than 3 expansion slots, additional load cards shall be installed at the rate of at least one load card for each group of up to 3 additional slots (i.e. for 4, 5 or 6 slots a total of at least 4 load cards shall be added. For 7, 8 or 9 slots a total of at least 5 load cards shall be added, etc.).

Modular equipment, such as hard drive arrays and network servers, are tested in their maximum configuration.

In all configurations, the use of additional load cards shall not cause the total DC output power available to be exceeded.

NOTE 1 The above does not mean that multiple options of the same type, such as more than one hard drive, should be fitted, unless that is representative of the user configuration, or the product is of a type (such as Redundant Arrays of Inexpensive Disks (RAID)) for which such a configuration is not abnormal.

NOTE 2 Common load cards for expansion slots such as PCI or PCI-2 are configured for 30 W but may be adjusted as Industry standards change.

Emission tests shall be conducted with the user’s operation controls or automatic programs set to the mode expected to produce the maximum total harmonic current (THC) under normal operating conditions.

Power saving modes which may cause large power level fluctuations shall be disabled, so that all, or part, of the equipment does not automatically switch off during the measurements.

For ITE systems designed for use with a manufacturer-supplied power distribution system, such as one or more transformers, UPS or a power conditioner, compliance with the limits of this standard shall be met at the input supplied from the public low-voltage distribution network.

C.10.2 Optional conditions for measuring emissions of IT equipment with external power supplies or battery chargers

For IT equipment with external power supplies or battery chargers, manufacturers may choose

• either to test the whole equipment according to C.10.1 (General conditions),

• or to test the equipment by measuring the AC input power and the harmonic emissions of the associated power supply or battery charger according to 6.2.2 with the DC output side loaded by a resistive load, provided that, with the resistive load applied, the peak-to-peak ripple voltage across the load is not greater than 5 % of the DC output voltage.

The resistance value of the load shall be such that the active power dissipated in the load is equal to the DC output power rating, or, if that is not available, to the DC output voltage rating multiplied by the DC output current rating marked on the power supply/battery charger unit.Power supply/battery charger units whose AC input power measured according to 6.2.2 under the above load conditions is 75 W or less are deemed to conform without further testing, as specified in Clause 7.

C.11 Test conditions for induction hobs

Induction hobs are operated with an enamelled steel pan which contains approximately half its capacity of water at room temperature, and positioned at the centre of each cooking zone, in turn. Thermal controls are adjusted to their highest setting.

The diameter of the base of the pan is to be at least the diameter of the cooking zone. The smallest pan complying with this requirement is used. The maximum concavity of the base of the pan is 3D/1 000 where D is the diameter of the flat area of the base of the pan. The base of the pan is not to be convex.

The concavity is checked at room temperature using an empty pan.

C.12 Test conditions for air conditioners

If the input power of the air conditioner is controlled by an electronic device so that the revolution speed of the fan or compressor motor is changed in order to get the suitable air temperature, the harmonic currents are measured after the operation becomes steady-state under the following conditions:

• The temperature control shall be set to the lowest value in the cooling mode and to the highest value in the heating mode.

• The ambient temperature for testing shall be 30 °С ± 2 °С in the cooling mode, and 15 °С ± 2 °С in the heating mode. If in the heating mode the rated input power is reached at a higher temperature, the air conditioner shall be tested at this ambient temperature but no higher than 18 °С. The ambient temperature is defined as the temperature of the air inhaled from the indoor and from the outdoor unit of the appliance.

If the heat is not exchanged to the ambient air but to another medium for example water, all settings and temperatures shall be chosen so that the appliance is operated with the rated input power.

If the air conditioner does not contain power electronic elements (e g. diodes, dimmers, thyristors, etc.), it need not be tested against harmonic current limits.

C.13 Test conditions for kitchen machines as defined in IEC 60335-2-14

Kitchen machines as listed in the scope of IEC 60335-2-14 are deemed to conform to the harmonic current limits of this standard without further testing.

C.14 Test conditions for arc welding equipment which is not professional equipment

Testing shall be carried out at an ambient temperature between 20 °С and 30 °С. The test shall be started with the arc welding power source at ambient temperature. The arc welding power source shall be connected to a conventional load. It shall be operated at the rated maximum welding current /_2max and conventional load voltage given in Table C.1. The observation period shall be 10 thermal cycles (for short cyclic equipment where the first thermal cycle is less than or equal to 2,5 min) or one full thermal cycle (for long cyclic equipment where the first thermal cycle is greater than 2,5 min). Multi-process arc welding power sources shall be tested using the process which gives the highest input current. The definitions for conventional load, /_2max’ /₂ and U₂ are given in IEC 60974-1.

Table C.1 - Conventional load for arc welding equipment tests

C.15 Test conditions for high pressure cleaners which are not professional equipment

The high pressure cleaner is adjusted according to normal operation as defined in IEC 60335-2-79 except for the electronic power control.

High pressure cleaners with electronic power control shall be tested in three modes of operation, each for an identical time interval that is at least 2 min long, with the control adjusted:

• to maximum input power,

• to 50 % ± 5 % of the maximum active input power, or, if that is not possible (e.g. controlled in steps), to the point closest to 50 % that is supported by the equipment design,

• and to minimum input power.

These three time intervals need not be consecutive, but the application of limits according to 6.2.3.4 is done as if the intervals were consecutive. In that case, the entire test observation period is made up of the three identical time intervals, without taking into account harmonic current values outside these three intervals.

C.16 Test conditions for refrigerators and freezers

C.16.1 General

Refrigerators and freezers shall be tested with an empty cabinet. The temperature control shall be adjusted to the lowest setting. The measurement shall be started after the internal temperature has been stabilised.

NOTE Stabilisation of the temperature can alternatively be deduced, for example, from the input power going into a low power mode.

When the measurement is started, the ambient temperature shall be between 20 °С and 30 °С. During the test the ambient temperature shall be maintained within +2 °С.

C.16.2 Refrigerators and freezers with VSD

The observation period shall be one hour. A few seconds after starting the measurement, all doors and further internal compartments shall be fully opened for 60 s and then closed again and kept closed for the rest of the observation period.

NOTE 1 A timing accuracy of ± 6 s is deemed to be sufficient for the targeted measurement repeatability, see Note 3 below.

Deviating from 6.2.2, the value of the input power to be used for the calculation of limits shall be determined according to the formula below:

P_i= 0,78 x Z_m x U_r

where

P_t is the active input power in watts, to be used for the calculation of Class D limits (see Table 3);

/_m is the current in amperes of the appliance measured according to IEC 60335-2-24, 10.2;

U_r is the rated voltage in volts of the appliance. If the appliance has a rated voltage range, U_T has the value that has been used for measuring /_m.

NOTE 2 P, is used for the calculation of limits instead of the measured active input power to eliminate the influence of other loads than the VSD, e.g. lighting devices or heating elements for defrosting, on the limit calculation. This also increases the repeatability of the measurement.

NOTE 3 The 5 % repeatability, mentioned in 6.2.3.1, can be achieved only if the climatic conditions are strongly controlled and, for each test, the measurement is started at the same point in the control cycle of the EUT. If these conditions are not fulfilled, the repeatability of the average value of the individual harmonic currents over the entire test observation period can be as much as 10 % of the applicable limit.

C.16.3 Refrigerators and freezers without VSD

Refrigerators and freezers without any variable speed drive to control compressor motor(s) are tested according to Class A limits in a representative 2,5 min observation period according to Table 4 for long cyclic equipment.Bibliography

I EC 60974-6, Arc welding equipment - Part 6: Limited duty equipmentШДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

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проблем стандартизації, сертифікації та якості»

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Наказ від 12.02.2016 № 34

EN61000-3-2:2006/Al:2009

Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions
(equipment input current <= 16 A per phase)

прийнято національний стандарт
методом «підтвердження» за позначенням

ДСТУ EN 61000-3-2:2015/Зміна№ 1:2015

(EN 61000-3-2:2006/А 1:2009, IDT)

Електромагнітна сумісність. Частина 3-2. Норми. Норми на емісію гармонік струму

(для сили вхідного струму обладнання не більше ніж 16 А на фазу)

Копію цього стандарту можна отримати
у Національному фонді нормативних документів

3 наданням чинності від 2016-01-01E

EN 61000-3-2/А1