GB 17743-1999 Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
Some standard content:
GB17743-1999
This standard is formulated based on CISPR15:1996 "Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment" and its 1997 No. 1 amendment of the International Electrotechnical Commission's Special Committee on Radio Interference. It is equivalent to it in terms of technical content and writing format.
In this way, by making the limits and measurement methods of radio disturbance of lighting devices in my country equivalent to international standards, it meets the needs of international trade, technical and economic exchanges and international quality certification. This standard is recommended to be formulated for the first time.
For electronic dimming equipment suitable for stage, television, entertainment venues and other convenient uses, the control object is white light, which is in accordance with GB15734 "Limits and methods of measurement of radio disturbance characteristics of electronic dimming equipment". Appendix A and Appendix B of this standard are appendices to the standard, and Appendix C is a reminder appendix. This standard is proposed by the National Technical Committee for Radio Interference Standardization. This standard is under the jurisdiction of Branch F of the National Technical Committee for Radio Interference Standardization. The drafting unit of this standard: Shanghai Lighting Fixtures Research Institute. The main drafters of this standard are Chen Chaozhong, Shi Xiaohong, Wang Yongxi and Yao Zhishang. This standard is entrusted to the National Radio Interference Standardization Technical Committee F Subcommittee for interpretation. 157
GB 17743-1999
CISPR Foreword
1) IEC (International Electrotechnical Commission) is a worldwide international standardization organization composed of national electrotechnical committees (IEC International Committees). The purpose of IEC is to promote international cooperation on all standardization issues in the field of electrical and electronic equipment. To this end, IEC publishes international standards in addition to organizing other activities. The formulation of international standards is entrusted to technical committees, and any IEC national committee interested in the issues under discussion can participate in this formulation work. International organizations, governmental organizations and non-governmental organizations that have established relations with IEC can also participate in this formulation work. IEC maintains close cooperation with the International Organization for Standardization (ISO) in accordance with the agreement reached with it. 2) IEC's formal resolutions or agreements on technical issues are formulated by technical committees attended by representatives of international committees interested in the issue, expressing the closest possible international consensus. 3) These resolutions and agreements are published in the form of standards, technical reports or guidelines and are recommended for use by various countries. In this sense, they have been accepted by national committees.
4) In order to promote international unification, IEC National Committees adopt IEC international standards as their national or regional standards to the greatest extent possible.
5) IEC does not provide a marking procedure to indicate its approval, and IEC is not responsible for any product that claims to comply with a certain standard. This international standard was developed by CISPR-F Subcommittee "Interference with Household Appliances, Power Tools, Lighting Equipment and Similar Appliances". The text of this international standard is based on the following documents. Draft International Standard
Final Draft International Standard
CISPR/F/186/DIS
CISPR/F/211/FDIS
The changes in the main technical contents are as follows:
Voting Report
DIS/F/195/RVD
CISPR/F/222/RVD
Only the range of electromagnetic disturbance is limited. The immunity requirements for lighting equipment are formulated by IECTC34 Technical Committee. - Application of limits for all types of lighting equipment such as lamps, lamps and accessories. - Introduction to working conditions of lighting equipment.
- Changes in the measurement method of insertion loss.
Appendix A and Appendix B are integral parts of this standard. Appendix C is only for information.
1 Scope
National Standard of the People's Republic of China
Limits and methods of measurement of radio disturbancecharacteristics of electrical lighting and similar equipment
Limits and methods of measurement of radio disturbancecharacteristics of electrical lighting and similar equipment This standard applies to the radio frequency disturbance emitted (radiated and conducted) by the following equipment: GB 17743-1999
idt CISPR 15:1996
All lighting equipment intended for lighting, with the basic function of generating and/or distributing light, and intended to be connected to a low voltage power supply or to be operated by batteries;
- The lighting part of a multi-function equipment one of the main functions of which is lighting; - Independent auxiliary equipment used only for lighting equipment: - Ultraviolet and infrared radiation equipment;
- Rainbow advertising signs;
- Road/floodlighting intended for outdoor use; - Transport lighting (installed on cars, trains, etc.). This standard does not apply to: Www.bzxZ.net
- Lighting equipment used on aircraft and airports; Equipment for which the requirements for electromagnetic compatibility in the radio frequency range are clearly defined in other IEC or CISPR standards. Note: Examples are:
1) Lighting covers installed in other equipment, such as ruler lighting or rainbow finding devices; 2) Photocopiers,
3) Slide projectors;
4) Lighting equipment for road motor vehicles.
The frequency range covered is 9kHz~400 GHz. Multifunctional equipment that complies with different clauses of this standard and/or other standards at the same time shall meet the various provisions of each clause/standard for the relevant functions in operation.
The limits in this standard are determined on a probabilistic basis to ensure interference suppression within an economically reasonable range while still achieving adequate radio protection and electromagnetic compatibility. Additional requirements may be made in exceptional cases. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were valid. Parties using this standard should investigate the possibility of using the most recent versions of the following standards. GB/T4365-1995 Electromagnetic compatibility terminology (idtIEC50 (161): 1990) CISPR16-1: 1993 Specification for radio disturbance and immunity measuring equipment GB7000.1--1996 Luminaires - General safety requirements and tests (idtIEC598-1: 1992) Approved by the State Administration of Quality and Technical Supervision on April 26, 1999, implemented on May 1, 2000
QB 2276-—1996
CISPR 11: 1990
3 Definition
GB 17743--1999
Starters for fluorescent lamps (idtIEC155: 1993) Measurement methods and limits of electromagnetic disturbance characteristics of industrial, scientific and medical (ISM) radio frequency equipment This standard adopts the definitions described in GB/T4365. Continuous disturbances may be either broadband, e.g. caused by switching operations or by discharges of gases during instability in the lamp electrode area, or narrowband, e.g. caused by electronic control devices operating at specified frequencies. NOTE: Instead of the concepts of "broadband" and "narrowband", this standard distinguishes between two related types of disturbances by the type of detector used. Therefore, limits have been specified based on measurements with quasi-peak detectors and average detectors. Using this approach, combinations of broadband and narrowband disturbances can also be evaluated. 4 Limits
4.1 Frequency range
In 4.2, 4.3 and 4.4, limits are given that vary with the frequency range. No measurements are required at frequencies where no limits are specified. NOTE: The World Association of Radiocommunication Administrations (WARC) lowered the lower frequency limits in the range of 1 kHz to 148.5 kHz in 1979; for frequencies falling within the scope of application of this standard, a test at 150 kHz is sufficient. , because 148.5kHz falls within the receiver bandwidth. 4.2 Insertion loss
The minimum values of insertion loss in the frequency range of 150kHz~1605kHz are shown in Table 1. Table 1 Minimum insertion loss
Frequency range, kHz
150~160
160~1400
1400~1605
*Decreases linearly with the logarithm of the frequency. 4.3 Interference voltage
4.3.1 Power terminal
The power terminal interference voltage limit in the frequency range of 9kHz~30MHz is shown in Table 2a). Table 2a) Power terminal interference voltage limit
Frequency range
9 kHz~50 kHz*
50 kHz~150 kHz*
150 kHz~0.5 MHz
0. 5 MHz~ 2. 51 MHz
2. 51 MHz~3. 0 MHz
3.0 MHz~~5. 0 MHz
5 MHz~～30 MHz
At the transition frequency, the lower limit applies. Quasi-peak
Minimum, dB
Limit, dBμV
Average
* *In the frequency range 9 kHz to 150 kHz, the limits are provisional and will be revised after several years of experience. ***In the ranges 50 kHz to 150 kHz and 150 kHz to 0.5 MHz, the limits decrease linearly with the logarithm of the frequency. Note: In Japan, the limits in the frequency range 9 kHz to 150 kHz do not apply, while the quasi-peak limit of 56 dBμV and the average limit of 46 dBμV between 2.51 MHz and 3 MHz apply. 4.3.2 Load and control terminals
The disturbance voltage limits for loads and control terminals in the frequency range of 150kHz to 30MHz are shown in Table 2b). 160
Frequency range, MHz
0.15~0.50
Table 2b)
*At the switching frequency, the lower limit applies, radiated electromagnetic disturbance
GB 17743—1999
Load and terminal disturbance voltage limits
Limit, dBuV
Quasi-peak value
Average value
In the frequency range of 9kHz to 30MHz, the current quasi-peak value limit of the magnetic field component of the radiated disturbance field strength measured around the lighting equipment with a loop antenna with a diameter of 2m, 3m or 4m is shown in Table 3. The limit for a loop antenna with a diameter of 2 m applies to equipment with a length not exceeding 1.6 m, the limit for a loop antenna with a diameter of 3 m applies to equipment with a length between 1.6 m and 2.6 m, and the limit for a loop antenna with a diameter of 4 m applies to equipment with a length between 2.6 m and 3.6 m.
Table 3 Limits for radiated electromagnetic disturbances
Frequency range
9kHz~70 kHz
70 kHz~150 kHz
150 kHz~2.2 MHz
2.2 MHz~3.0 MHz
3.0 MHz~30 MHz
At the transition frequency, the lower limit applies. *
8858**
58~~26* *
Decreases linearly with the logarithm of the frequency. It increases linearly with the logarithm of the frequency. ***
Limits for loop antennas of different diameters", dBμA3m
51~22*
15 ~16***
Note: In Japan, the limits for the frequency range of 9kHz to 150kHz are not applicable. 4.5 Limits at specified frequencies
75~~45**
45~16**
912"
Certain frequencies designated by the International Telecommunication Union (ITU) are used as fundamental frequencies for industrial, scientific and medical (ISM) radio frequency equipment (Resolution 63 (1979) of the ITU regulations). These frequencies and related field strength limits are listed in Table 4. Table 4 Disturbance field strength limits at specified frequencies used by ISM equipment Centre frequency
24 125
122500
245000
6.765~6.795
13.553~~13.567
26.957~27.283
40. 660~~ 40. 700
433.050~434.790
902~928
2400~2500
5 725~~5 875
24 000~~24 250
61 000~~61 500
122 000~123 000
244 000~246 000
Measure the disturbance field strength limit at a distance of 10m
dB(μV/m)
100 (magnetic field component)
100 (magnetic field component)
100 (magnetic field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)
100 (electric field component)|| |tt||100 (Electric field component)
100 (Electric field component)
100 (Electric field component)
Corresponding to the frequency
allocation table of ITU radio regulations
661,662
(Region 1 only)
707 (Region 2 only)
*The use of these frequency bands shall be subject to special authorization by the relevant administration and the consent of the administrations of other radiocommunication institutions that may be affected. 161
GB17743-1999
The disturbance voltage limits for the terminals in the frequency bands of 6.765MHz~6.795MHz, 13.553MHz~13.567MHz and 26.957MHz~27.283MHz are under consideration. Note: In individual countries, different or additional frequencies may be specified for use by ISM equipment. 5 Application of limits
5.1 General
The application of the limits for the various lighting equipment mentioned within the scope of application of this standard is given in 5.3 to 5.9. The radiation requirements do not apply to lamps other than self-ballasted lamps, nor to accessories installed in luminaires, self-ballasted lamps or semi-luminaires (see Note 2 to 5.4.1).
The disturbance caused by manually or automatically controlled switches (inside or outside the equipment) that connect or disconnect the power supply should be ignored. This includes manual on/off switches, or switches driven, for example, by sensors or pulse control receivers. However, switches that operate repeatedly (for example, advertising signal switches) are not included in this case.
5.2 Specified frequencies
All lighting equipment operating at the specified frequencies described in 4.5 shall comply with: the field strength limits given in Table 4;
Except for the limits of the specified frequency bands listed in Table 4 being considered, the disturbance voltage limits are given in 4.3; and the radiated disturbance limits outside the frequency bands specified in 4.5 are given in Table 3. 5.3 Indoor luminaires
5.3.1 General
The following applies to all indoor luminaires regardless of the use environment. 5.3.2 Incandescent luminaires
Incandescent luminaires operating on alternating current or direct current, or not equipped with dimming devices or electronic switches, do not generate electromagnetic disturbances. Therefore, they are considered to meet all relevant requirements of this standard without further testing. NOTE The term "incandescent bulb" mentioned in this standard refers to all types of incandescent bulbs, including halogen lamps. 5.3.3 Fluorescent lamps
When fluorescent lamps are of the starter switch operated type and are designed to use one of the following lamp types, the minimum insertion losses shall comply with the provisions of Table 1.
--a straight fluorescent lamp with a nominal diameter of 15 mm, 25 mm or 38 mm; a circular fluorescent lamp with a nominal diameter of 28 mm or 32 mm; a U-shaped fluorescent lamp with a nominal diameter of 15 mm, 25 mm or 38 mm; a single-ended fluorescent lamp with a nominal diameter of 15 mm without an integral starter; a straight single-tube fluorescent lamp with a nominal diameter of 12 mm with an integral starter, double or quadrilateral. 5.3.4 Other lamps
Indoor lamps other than those described in 5.3.2 or 5.3.3 shall comply with the supply terminal voltage limits specified in Table 2a). Lamps with a lamp current operating frequency exceeding 100 Hz shall comply with the field strength limits specified in Table 3. When the light output of the luminaire is adjusted by an external device, the disturbance voltage at the control terminals shall not exceed the limits specified in Table 2b). 5.4 Independent accessories dedicated to lighting equipment
5.4.1 General
Independent accessories are electrical or electronic devices used to adjust the current or voltage of gas discharge lamps or incandescent lamps outside the luminaire. Examples are dimmers, transformers and converters for bulbs, ballasts for discharge lamps (including fluorescent lamps), and semi-luminaires for compact fluorescent lamps and incandescent lamps. Note
The requirements specified in 15.4 are to verify the electromagnetic emission characteristics of the accessories themselves separately. Since the circuits are diverse, it is impossible to describe the requirements for installation. In this regard, it is recommended that the manufacturer provide guidance on the correct use of accessories. 162
GB 17743-1999
The requirements of 25.4 can be used to test accessories intended to be installed inside the luminaire. However, the above test is not necessary. Moreover, even if the accessories comply with the requirements of this clause, the luminaire is always tested. 5.4.2 Independent dimming devices
5.4.2.1 Types of devices
There are two types of dimming devices, one that is similar to a dimmer and directly adjusts the voltage, and the other is a device that has a remote control function and uses a ballast or converter to adjust the light output.
5.4.2.2 Independent direct dimming devices
Device with semiconductors shall comply with the terminal voltage limits in Table 2a) and Table 2b). Otherwise, no limits are specified. 5.4.2.3 Independent remote control devices
Independent remote control devices that generate DC or low frequency (<500Hz) control signals have no limit requirements. This standard does not apply to devices operated by radio frequency or infrared. Other independent remote control devices shall comply with the terminal voltage limits in Table 2a) and Table 2b). 5.4.3 Stand-alone transformers and converters for incandescent lamps 5.4.3.1 General
Transformers for incandescent lamps change the voltage but not the frequency of the supply, whereas converters also change the frequency. Both devices have the function of regulating the light output of the lamp.
5.4.3.2 Stand-alone transformers
For transformers for incandescent lamps that do not regulate the voltage through active electronic components, the provisions of 5.3.2 shall apply. Stand-alone transformers for other incandescent lamps shall comply with the terminal voltage limits in Table 2a) and Table 2b). 5.4.3.3 Stand-alone converters
Stand-alone electronic converters for incandescent lamps shall: a) comply with the terminal voltage limits in Table 2a) and Table 2b); or b) comply with the supply terminal voltage limits in Table 2a) and the field strength limits in Table 3 if the converter has a non-detachable load supply cable or if the manufacturer has strict installation instructions for the location, type and maximum length of the cable to the lamp.
5.4.4 Separate ballasts for fluorescent lamps and other gas discharge lamps 5.4.4.1 Separate ballasts designed for use with fluorescent lamps of the type mentioned in 5.3.3 and operated from a starter shall comply with the minimum values of insertion losses specified in Table 1.
5.4.4.2 Other separate ballasts shall comply with the voltage limits at the supply terminals given in Table 2a). For ballasts supplying lamps with current operating at frequencies exceeding 100 Hz, the field strength limits given in Table 3 shall be complied with. If the light is dimmed by external means, the voltage limits at the ballast control terminals shall not exceed the limits given in Table 2b). 5.4.5 Semi-luminaires
A semi-luminaire (sometimes called an adapter) for use with a compact fluorescent lamp or an incandescent lamp is a device having, on one side, a screw or socket cap for fixing to a standard incandescent lampholder and, on the other side, a lampholder for insertion of an interchangeable light source. Semi-luminaires shall comply with the supply terminal voltage limits specified in Table 2a). Semi-luminaires with a light source operating frequency exceeding 100 Hz shall comply with the field strength limits specified in Table 3. 5.5 Self-ballasted lamps
Self-ballasted lamps have the ballast and starting device enclosed in a single unit with the lamp. These self-ballasted lamps are fitted with screw or socket caps that can be plugged directly into appropriate lamp holders. Self-ballasted lamps shall comply with the supply terminal voltage limits in Table 2a). If the operating frequency of the light source exceeds 100 Hz, self-ballasted lamps shall comply with the field strength limits specified in Table 3. 5.6 Outdoor lighting fixtures
5.6.1 General
The term "outdoor lighting" mentioned in this standard refers to general lighting used in public areas, such as streets, promenades, circular paths, highways, tunnels, parking lots, service stations, outdoor sports and entertainment venues, as well as security lighting and floodlighting for buildings, etc. In addition, the requirements described in 5.6 also apply to outdoor lighting fixtures in private places, industrial areas and similar places. However, the above lighting equipment may be subject to special radiation requirements, which are not included in this standard, such as lighting equipment for airports.
5.6 does not apply to neon lights and other advertising sign lights. 5.6.2 Mounting system
Generally speaking, a set of outdoor lighting fixtures includes a support and one or more lamps. The support may be:
———a tube (bracket) or similar object; a pole (column) arm;
—the pole cap
a flying wire or hanging wire;
a wall or ceiling.
Unless otherwise specified, the radiation requirements specified in 5.6 apply to the luminaire (including the lamp) and not to the luminaire's support. 5.6.3 Integral switching devices
The interference caused by the operation of integral switching devices (such as pulse control receivers) shall be ignored. 5.6.4 Incandescent lamps
The provisions of 5.3.2 shall apply.
5.6.5 Fluorescent lamps
Fluorescent lamps using one of the fluorescent lamps mentioned in 5.3.3 and operated with a starter shall comply with the minimum values of insertion losses specified in Table 1.
5.6.6 Other luminaires
Except for outdoor luminaires mentioned in 5.6.4 or 5.6.5, other outdoor luminaires shall comply with the voltage limits of the supply terminals in Table 2a).
When the supply frequency of the lamp in the luminaire is greater than 100Hz, the luminaire shall be equipped with an electronic ballast and the luminaire shall comply with the field strength limits in Table 3.
Other limits for the electric field of the disturbance field strength are under consideration. When the light output of the luminaire is adjusted by an external device, the disturbance voltage at the control terminals shall not exceed the limits of Table 2b). 5.7 Ultraviolet and infrared radiating appliances
5.7.1 General
Ultraviolet and infrared radiating appliances are appliances for medical and hairdressing and skin care, appliances for industrial use and heating appliances for emergency areas. 5.7 applies to appliances mainly used in residential environments. Other appliances shall comply with the provisions of CISPR11. 5.7.2 Infrared radiating appliances
For appliances which do not contain any active electronic components and which contain only incandescent radiation sources (infrared emitters) operating at the mains frequency, the provisions of 5.3.2 shall apply.
5.7.3 Ultraviolet fluorescent lamp appliances
Ultraviolet appliances using ultraviolet lamps of the same type as fluorescent lamps referred to in 5.3.3 and operated with replaceable starters shall comply with the minimum values of insertion losses given in Table 1.
5.7.4 Other ultraviolet and/or infrared appliances Infrared and ultraviolet radiating appliances other than those described in 5.7.2 or 5.7.3 shall comply with the supply terminal voltage limits given in Table 2a).
Appliances using radiation sources with currents having a frequency exceeding 100 Hz (modulation) shall comply with the field strength limits given in Table 3. When the radiation of the appliance is modulated by external means, the disturbance voltage at the control terminals shall not exceed the terminal voltage limits given in Table 2b). 164
5.8 Transport lighting
5.8.1 General
Light sources are used in transport equipment for:
external lighting and signalling;
lighting of instruments on transport vehicles,
——-lighting in the cab and rooms.
GB 17743-1999
5.8 specifies the requirements for lighting equipment on ships and railway vehicles. Lighting equipment used on or in aircraft is subject to special requirements and is not included in the scope of this standard. Note: Lighting equipment for road vehicles is covered by the CISPRD Subcommittee. 5.8.2 External lighting and signalling devices
If the devices for lighting or signalling are equipped with incandescent lamps, they are considered to meet the relevant requirements of this standard without additional testing. If gas discharge lamps are used, the lamp and its ballast shall be installed in a unit and shall comply with the supply terminal voltage limits given in Table 2a) and the field strength limits given in Table 3.
5.8.3 Lighting of instruments on transport
Lighting of instruments on transport shall be considered to meet the requirements of instruments. 5.8.4 Lighting in the cab and rooms
The interior lighting equipment of ships and passenger trains is regarded as indoor lighting equipment and the relevant requirements of 5.3 shall apply. 5.9 Red lights and other advertising signs
Limits and measurement methods are under consideration. 6 Working conditions of lighting equipment
6.1 General
When measuring the interference and insertion loss of lighting equipment, the equipment shall operate under the conditions specified in 6.2 to 6.6. In addition, the special conditions given for different measurement methods in Chapter 7, Chapter 8 and Chapter 9 shall be observed. 6.2 Lighting equipment
The lighting equipment provided by the manufacturer shall be tested under normal working conditions. For example, the normal working conditions given in GB7000.1 shall be followed for lamps.
6.3 Power supply voltage and frequency
The power supply voltage should be within 2% of the rated voltage. The nominal power supply frequency should be equal to the rated frequency of the equipment. 6.4 Environmental conditions
The measurement should be carried out under normal laboratory conditions, and the ambient temperature should be within the range of 15℃ to 25℃. 6.5 Bulbs
6.5.1 Types of lamps used
The measurements of the terminal disturbance voltage and the radiated field shall be made on the lamps for which the lighting fixture is designed. The measurements shall be made with lamps of the maximum rated power permitted by the lighting fixture.
6.5.2 Ageing time of lamps
The measurements shall be made on lamps which have been in operation for at least the following time: 2 h for incandescent lamps
100 h for fluorescent lamps and other gas discharge lamps. 6.5.3 Stabilization time of lamps
Before the measurements are made, the lamps shall reach a stable state. Unless otherwise specified in this standard or specified by the manufacturer, the following stabilization times shall be maintained: 5 min for an incandescent lamp;
15 min for a fluorescent lamp;
30 min for other discharge lamps.
6.6 Replaceable starter
GB 17743—1999
When using the QB2276 glow starter, its capacitor is replaced with a 5000 (1±10%) PF capacitor. Unless otherwise specified, the starter should remain on the starter seat. Care should be taken to maintain its characteristics throughout the frequency range covered by the measurement. If the manufacturer has equipped the starter with a capacitor, the lamp should be measured as a regular product (including this starter capacitor). 7 Method of measurement of insertion loss
7.1 Method of measurement of insertion loss
7.1.1 For the lamps described in 5.3.3 and 5.6.5, the insertion loss is measured according to the following diagrams: - Figure 1, straight tube and U-shaped fluorescent lamps;
- Figure 2, circular fluorescent lamps;
Figure 3, single-ended fluorescent lamps with integral starters. For the simulation lamp, see the instructions in 7.2.4.
When a fluorescent lamp with a nominal diameter of 25 mm has a tube which is interchangeable with a tube with a nominal diameter of 38 mm, the insertion loss shall be measured using a dummy lamp with a nominal diameter of 38 mm, unless the manufacturer's instructions specify that only a tube with a diameter of 25 mm shall be used. 7.1.2 For separate ballasts as referred to in 5.4.4, the insertion loss shall be measured in the circuit associated with the ballast under test. The ballast shall be mounted together with the dummy lamp and starter on a piece of insulating material 12 mm ± 2 mm thick. This arrangement shall be considered as a luminaire and the relevant conditions of Clause 7 shall apply.
7.1.3 The ultraviolet radiation apparatus described in 5.7.3 is considered as a luminaire and the relevant conditions of Clause 7 shall apply. 7.2 Measurement arrangement and measurement procedure
The measurement arrangement shall consist of the following parts.
7.2.1 RF Generator
This is a sine wave generator with an output impedance of 502 and is suitable for the frequency range covered by this measurement. 7.2.2 Balun
A low capacitance balun is used to obtain a symmetrical voltage from the RF generator. The electrical and structural requirements are given in Appendix A.
7.2.3 Measuring Receiver and Network
The measuring receiver and network specified in CISPR16-1 shall be used, i.e. a 50Ω/50μH+5Ω (or 50Ω/50uH) artificial power network with a measuring receiver.
7.2.4 Simulated Lamp
The simulated lamp used in the circuits of Figures 1, 2 and 3 simulates the RF characteristics of a fluorescent tube, as shown in Figures 4a), 4b), 4c), 4d), 4e) and 4f).
When the dummy lamp is installed in the luminaire, it should be parallel to the metal parts of the luminaire. Any support necessary for this purpose should not significantly change the capacitance between the dummy lamp and the luminaire.
The length of the dummy lamp should be equal to the length of the fluorescent tube of the luminaire for which the luminaire is designed. The length of the metal tube should be as specified in the data sheet of the relevant dummy lamp of this standard.
7.2.5 Measurement arrangement
The length of the unshielded connecting wire between the converter and the input terminals of the dummy lamp should be as short as possible and should not exceed 0.1 m. The length of the coaxial connecting wire between the luminaire and the measuring network should not exceed 0.5 m. In order to avoid parasitic currents, there should be only one grounding point in the measuring network, to which all grounding terminals should be connected. 7.3 Lamp truth
Except for the possible adjustment and replacement of the lamp as indicated in 6.6, the measurements should be made with a regular production luminaire. When more than one lamp is installed in the luminaire, each lamp is replaced in turn by a dummy lamp. The insertion loss of a lamp with multiple lamps connected in parallel shall be measured for each lamp and the minimum value of the measured insertion loss shall be compared with the relevant limit value. When measuring a lamp working in series, both lamps are replaced by dummy lamps, the input terminals of one dummy lamp are connected to the balanced/unbalanced converter, and the input terminals of the remaining dummy lamp are connected to a 1502 resistor (high frequency type). If the lamp has a frame of insulating material, the back of the lamp shall be placed on a metal plate to connect the reference ground of the measurement network. 7.4 Measurement process
7.4.1 The insertion loss is obtained by comparing the voltage U1 obtained by connecting the output terminals of the converter to the terminals of the measurement network and the voltage U2 obtained by connecting the converter to the network through the lamp. 7.4.2 Voltage U
The output voltage U of the converter (between 2mV and 1V) is measured by a measuring receiver. For this purpose, a direct connection is made between the converter and the input terminals of the measuring network. The voltage U1 is measured between either of the two input terminals of the network and earth and should have approximately the same value, that is, regardless of the arrangement of the measuring network. For checking the characteristics of the balanced/unbalanced converter and the effects of magnetic saturation, see Annex A.
7.4.3 Voltage U2
The voltage U measured between the luminaire and the converter and the measuring network may have different values, so that U may depend on the two positions of the measuring network switch. The higher voltage reading is recorded as U2. 7.4.4 Insertion loss is given by the formula 201 g yuan
dB.
Note: With this measurement method, there is a good correlation between the insertion loss values measured when using simulated lamps and actual lamps on the same luminaire. 7.4.5 When measuring the insertion loss of fluorescent lamps operated in series according to Figure 1 or Figure 2, or according to 7.3, if it is known that the insertion loss measured for the simulated lamp in a given direction is the minimum, the measurement is only carried out in this direction. (For example, for luminaires with a single ballast, the simulated lamp is inserted so that the relevant input terminal is connected directly to the neutral supply terminal of the luminaire). If there is any doubt about this, measurements should be made in all possible directions of the simulated lamp.
8 Method of measuring disturbance voltage
8.1 Measurement arrangement and procedure
8.1.1 Supply terminal voltage measurement
The disturbance voltage shall be measured at the supply terminals of the lighting equipment according to the arrangement of the relevant equipment in Figures 5 and 6. The output terminals of the artificial power network (V-type network) shall be approximately 0.8 (1 ± 20%) m away from the ab terminal and connected by two power wires in a 0.8 m long three-core flexible cable. 8.1.2 Load and control terminal voltage measurement
A voltage probe shall be used for measurements at the load terminals or control terminals (see Figure 5). It consists of a resistor of at least 1500Ω in series with a capacitor whose reactance is negligible relative to the resistance of the resistor (in the range of 150kHz to 30MHz). (See CISPR16-1, Clause 12)
The measurement result shall be corrected for the voltage distribution between the probe and the measuring device. Only the resistive part of the impedance shall be considered for the correction. 8.1.3 Dimmer
If the lighting equipment contains a dimming controller or is dimmed by an external device, the following method shall be used for measuring the disturbance voltage. 8.1.3.1 At the power supply end
Preliminary measurements or searches shall be made over the entire frequency range of 9kHz to 30MHz at full luminous output. In addition, at the following frequencies and at the frequencies where the maximum disturbance is found during the preliminary measurements over the entire frequency range, the controller settings shall be adjusted to achieve the maximum disturbance at maximum load.
9 kHz, 50 kHz, 100 kHz, 160 kHz, 240 kHz, 550 kHz, 1 MHz, 1.4 MHz, 2 MHz, 3.5 MHz, 6 MHz, 10 MHz, 22 MHz, 30 MHz.
8.1.3.2 At the load and/or control end
GB 17743-1999
Preliminary measurements or searches shall be made over the entire frequency range of 150kHz to 30MHz at full luminous output. In addition, at the following frequencies and at the frequencies where the maximum disturbance is found in preliminary measurements over the entire frequency range, the settings of the controller shall be adjusted to achieve the maximum disturbance while maintaining the maximum load.
160 kHz, 240 kHz, 550 kHz, 1 MHz, 1.4 MHz, 2 MHz, 3.5 MHz, 6 MHz, 10 MHz, 22 MHz, 30 MHz.5 MHz, 6 MHz, 10 MHz, 22 MHz, 30 MHz.
8.1.4 Measurements with an average detector
When the limit measured by the receiver with a quasi-peak detector complies with the limit measured with the average detector, the test fixture is considered to comply with both limits and it is not necessary to make measurements with the average detector. 8.2 Indoor and outdoor luminaires
Measurement arrangement see Figure 6a).
When multiple lamps are installed in a luminaire, all lamps shall be operated simultaneously. If the user may insert the lamp into the lighting fixture in different orientations, all conditions of the luminaire shall be measured and the maximum value compared with the relevant limit. For fluorescent lamps equipped with a replaceable starter, the same terminal for connecting the starter shall be connected in the two possible measurement positions. If the luminaire is metallic and has a grounding terminal, the terminal shall be connected to the reference ground of the V-type network. If the luminaire has a grounding terminal but the manufacturer states that the device is not to be grounded, it shall be measured twice: once with the grounding terminal connected and once without connection. In both cases the luminaire shall meet the requirements. If the luminaire is metal or plastic (or a combination of both) and is not intended to be grounded, it shall be mounted symmetrically 0.4 m above a metal plate of at least 2 m x 2 m. The plate shall be connected to the reference ground of the V-network. If the measurement is made in a shielded room, the 0.4 m may refer to the distance from one of the inner walls of the shielded room. The base of the luminaire shall be placed parallel to the reference wall of the shielded room and at least 0.8 m from the outer surfaces of the shielded room. For outdoor luminaires, if the ballast is mounted outside the luminaire (in the pole), the power terminal disturbance voltage is measured at the ballast power input terminals.
8.3 Independent dimming devices
8.3.1 Direct operation devices
The arrangement of the dimming devices is as shown in Figure 5. If there are connecting wires between the load and control terminals, their length shall be 0.5m1m. Unless otherwise specified by the manufacturer, the dimming devices shall be measured with the maximum permissible load including the incandescent lamp specified by the manufacturer. First, the dimming devices shall be measured in accordance with the provisions of 8.1.3.1, then, if there is a disturbance voltage at the load and control terminals, they shall be measured in accordance with the provisions of 8.1.3.2.
8.3.2 Devices with remote control function
This device shall be connected to a measuring circuit consisting of a resistor, capacitor and/or inductor specified by the manufacturer. The measurement arrangement is shown in Figure 5. The terminal voltages at the power terminals and the control terminals shall be measured in accordance with the corresponding provisions of 8.1.3. 8.4 Independent transformers and converters for incandescent lamps 8.4.1 The measurement of independent transformers shall apply the relevant provisions of 8.3.1. 8.4.2 Separate electronic converters with non-detachable cables or for which the manufacturer provides strict installation instructions shall be mounted together with the maximum loaded lamp on a piece of insulating material 12 mm ± 2 mm thick. The supply cable between the converter and the lamp shall be non-detachable or of the type and maximum length specified in the installation instructions. The device shall be mounted on a metal plate slightly larger than the insulating material, which shall be connected to the reference earth of the V-network.
8.5 The disturbance voltage of separate ballasts for fluorescent lamps and other gas discharge lamps shall be measured in the circuit associated with the device under test (as shown in Figure 6b). The device shall be placed with the mounted lamp on a piece of insulating material 12 mm ± 2 mm thick and then on a metal plate slightly larger in diameter than the insulating plate, which shall be connected to the reference earth of the V-network. If the device is provided with an earth terminal, this earth terminal shall also be connected to that reference earth. If a starter or ignitor must be used to start the lamp, then the starter or ignitor shall be suitable for the ballast and the lamp. The instructions given in 6.6 shall apply.
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