This standard specifies the limits and measurement methods for radio disturbance characteristics of electronic dimming equipment. This standard applies to electronic dimming equipment that controls incandescent lamps in places such as stages, televisions, and entertainment venues. Electronic dimming equipment in other places can also refer to this standard. The frequency range applicable to this standard is 0.01 to 30MHz. GB 15734-1995 Limits and measurement methods for radio disturbance characteristics of electronic dimming equipment GB15734-1995 Standard download decompression password: www.bzxz.net

ICS33.100
National Standard of the People's Republic of China
GB15734—1995
Limits and methods of measurement of radio disturbance characteristics of electronic lighting control equipment
Limits and methods of measurement of radio disturbance characteristics of electronic lighting control equipmentPublished on November 6, 1995
State Administration of Technical Supervision
Implementation on December 1, 1996
National Standard of the People's Republic of China
Limits and methods of measurement of radio disturbance characteristics of electronic lighting control equipment1 Subject content and scope of application
This standard specifies the limits and measurement methods of radio disturbance characteristics of electronic lighting control equipment. GB15734—1995
This standard applies to electronic dimming devices for incandescent lamps in places such as stages, televisions, and entertainment venues. Electronic dimming devices in other places of use can also be implemented as a reference. The frequency range applicable to this standard is 0.01~30MHz. 2 Reference standards
GB/T2900.33 Electrical terminology
Power electronics technology
GB3907 Basic measurement methods for industrial radio interference GB/T4365 Electromagnetic compatibility termswww.bzxz.net
GB6113 Electromagnetic interference measuring instrument
3 Terms
The terms used in this standard comply with the provisions of national standards GB/T4365 and GB/T2900.33. The following terms apply only to this standard.
3.1 Phase control phasecontrol
Control of changing the starting point of the current cycle in the electronic dimming circuit. 3.2 Suppression inductor Inductor specially designed for suppressing radio disturbance of dimming equipment, radio conducted disturbance voltage limit of electronic dimming equipment 4.1 The radio conducted disturbance voltage limit of electronic dimming equipment with a current not exceeding 50A shall comply with the provisions of Table 1. Table 1 Radio conducted disturbance voltage limit of electronic dimming equipment with a current not exceeding 50A Limit, dBμv
Frequency band, MHz
0.01~0.15
Power supply end
86~681)
Load end
95~681)
Approved by the State Administration of Technical Supervision on November 6, 1995 Power supply end
93~70)
Secondary machine||t t||Load end
107~7812
Power end
Third-level machine
Load end
102~721)
109~71)
Implemented on 12/01/1996
Frequency band, MHz
0.15~0.50
Power end
First-level machine
Note: 1) Indicates that the value decreases linearly with frequency. 5 Measurement of radio conducted disturbance voltage
5.1 Measurement conditions
5.1.1 Grid conditions
GB15734—1995
Continued Table 1
Limit value, dBμ
Secondary machine
Load end
5.1.1.1 Voltage fluctuation range: Phase voltage 220V±10%. 5.1.1.2 Frequency: 50~60Hz.
5.1.2 Environmental conditions
5.1.2.1 Temperature: 15~35℃.
5.1.2.2 Relative humidity: <85%.
Power supply end
Load end
Power supply end
Level 3 machine
Load end
5.1.2.3 Environmental disturbance: When the test sample is connected to the measurement circuit but before the power is turned on, the disturbance voltage caused by the environment indicated on the disturbance measuring instrument should be at least 20dB lower than the disturbance voltage limit of the test sample. 5.2 Measuring equipment
5.2.1 Measuring instrument
The measuring instrument should comply with the provisions of Chapter 2 of GB3907, and the detection method is quasi-peak detection. 5.2.2 Artificial power supply network
A 50Ω, 50μH V-type artificial power supply network is used. 5.2.3 Voltage probe
It is composed of a resistor with a resistance greater than 1500Ω and a capacitor with a capacitance greater than 0.005uF in series. 5.3 Measurement Arrangement
The measurement arrangement of the disturbance voltage at the power supply end and the load end is arranged as shown in Figure 1. For detailed requirements, see GB3907 Article 4.2 Measurement Arrangement. 2
5.4 Test Product Operating Conditions
Power Supply Noise Rejection Tester
Noise Rejection Test Image
GB15734—1995
Auxiliary Terminal
Electrical Dimming
Dimming Circuit
Switch Position: 1—Measurement at the power supply end; 2—Measurement at the load end, 3, 4—Load end 5.4.1 The circuit under test is with rated load.
Electrical Positive Probe
5.4.2 The phase-controlled electronic dimming device is set to a conduction angle of 90°, and other forms of electronic dimming devices are set to the maximum disturbance position during dimming.
5.5 Disturbance Voltage Measurement
5.5.1 The disturbance at the power supply end is measured at the measurement end of the artificial power supply network. 5.5.2 The load-end disturbance voltage is measured at the output end by a voltage probe, and the disturbance voltage is calculated as follows: U
Where: U——disturbance voltage, μV;
R——probe resistance, Q;
Ro—input impedance of the disturbance measuring instrument, Q
U. ——indicated voltage of the disturbance measuring instrument, V. 6 Sampling method and evaluation of measurement results
6.1 Sampling method
Random sampling test, the relationship between the number of dimming circuits of the equipment under test and the number of samplings shall comply with the provisions of Table 2. Table 2 Relationship between the number of dimming circuits of the equipment under test and the number of samplings Number of circuits of the equipment under test
Sampling number
97~192
Result evaluation
15734—1995
According to the provisions of Article 8.2 of GB3907, the non-central t distribution evaluation method is selected. Additional Notes:
This standard was proposed by the Ministry of Culture of the People's Republic of China. This standard is under the jurisdiction of the National Radio Interference Standardization Technical Committee. This standard was drafted by the Zhejiang Stage Electronic Technology Research Institute, with participation from China Central Television and Shanghai Electric Science Research Institute. The main drafters of this standard are Yu Jian, Zhang Xia, Zhan Yougen, Ren Linsong, Zhang Min, Jiang Chunbao, and Yang Dexin. 4
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