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GB/T 19954.2-2016 English PDF (GBT19954.2-2016)

GB/T 19954.2-2016 English PDF (GBT19954.2-2016)

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GB/T 19954.2-2016: Electromagnetic compatibility -- Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use -- Part 2: Immunity

This Part of GB/T 19554 specifies immunity test requirements, test signals, performance criteria and test methods for apparatus, involving immunity to continuous and transient, conducted and radiated electromagnetic disturbances, including electrostatic discharge, which are the necessary electromagnetic compatibility requirements.
GB/T 19954.2-2016
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 33.160.20
M 74
Replacing GB/T 19954.2-2005
Electromagnetic compatibility - Product family
standard for audio, video, audio-visual and
entertainment lighting control apparatus for
professional use - Part 2. Immunity
ISSUED ON. AUGUST 29, 2016
IMPLEMENTED ON. MARCH 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 6
3 Terms and definitions ... 7
4 Electromagnetic environment ... 9
5 Disturbance phenomenon ... 10
6 Immunity requirements ... 10
7 Test conditions ... 14
8 Buyer/user documentations ... 17
Annex A (Normative) Measurement method for the immunity of radiation
magnetic field between 50 Hz ~ 50 kHz ... 18
Annex B (Normative) Test method for audio common-mode immunity ... 25
Annex C (Normative) Far-infrared radiation apparatuses for outdoor
transmission ... 32
Annex D (Normative) Immunity test guidelines for audio, video, audio-visual and entertainment lighting control apparatuses ... 33
Annex E (Informative) Background information on this Standard ... 39
Bibliography ... 40
Foreword
GB/T 19954 ?€?Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use?€? includes the following two parts.
- Part 1. Emission;
- Part 2. Immunity.
This Part is Part 2 of GB/T 19954.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 19954.2-2005 ?€?Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 2. Immunity?€?.
Main changes in this Part compared with GB/T 19954.1-2005 are as follows. - ADD the definition of screened-cable port in Clause 3;
- ADJUST the location of Clause 6 Immunity requirements, Clause 7 Test conditions and Clause 8 Buyer/user documentations in this Part; ADJUST the clause and article number accordingly;
- ADD additional information that shall be stated by the manufacturer in Clause 8 Buyer/user documentations;
- MODIFY the calibration and test method of BP1 type port?€?s common-mode immunity in Annex B;
- ADD Annex D Performance indicators for the objective evaluation of the immunity test;
This Part is proposed by the 3rd Research Institute of China Electronics Technology Group Corporation.
This Part is under the jurisdiction of the National Technical Committee on Radio Interference of Standardization Administration of China (SAC/TC 79).
Drafting organizations of this Part. 3rd Research Institute of China Electronics Technology Group Corporation, China Quality Certification Center, Nanjing Rongxiang Test Equipment Co., Ltd.
Main drafters of this Part. Zhu Lin, Ding Shaohua, Shen Qixue, Lin Jingping, Xu Wei, Electromagnetic compatibility - Product family
standard for audio, video, audio-visual and
entertainment lighting control apparatus for
professional use - Part 2. Immunity
1 Scope
This Part of GB/T 19554 specifies immunity test requirements, test signals, performance criteria and test methods for apparatus, involving immunity to continuous and transient, conducted and radiated electromagnetic disturbances, including electrostatic discharge, which are the necessary electromagnetic compatibility requirements.
This Part applies to audio, video, audio-visual and entertainment lighting control apparatus for professional use as defined in Clause 3 and apparatus used in the electromagnetic environment described in Clause 4, including the professional digital apparatus defined in 3.5 and the components specified in 7.4.
This Part specifies that the disturbance signal frequency range is 0 Hz ~ 400 GHz, but does not make the requirements for the entire frequency band.
Annex C provides relevant information on infrared emitters with wavelengths of 0.7 ??m to 1.6 ??m.
This Part does not consider conditions of disturbance source or disturbed apparatus failure.
The apparatus defined in 3.4, 3.5 and 3.6 may be operated in any form of power supply, including.
- public low-voltage power grids;
- independent power grids with similar characteristics;
- DC power supplies for specific apparatus;
- built-in batteries of the apparatus;
- standby generators.
Some of the standards referenced in this Part may not apply to independent low- voltage power grids.
Note 1. In special cases, for example, when portable transmitters are in use near the apparatus, in addition to the specified limits, additional measurements may be carried out in order to improve the electromagnetic immunity of the apparatus.
This Part does not apply to.
- consumer electronics products;
- specially designed security system apparatus;
- emission apparatus designed for wireless communications.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 4365 Electrotechnical terminology - Electromagnetic compatibility
GB 9383 Sound and television broadcast receivers and associated equipment - Immunity characteristics - Limits and methods of measurement
GB/T 12060.3 Sound system equipment - Part 3. Methods of measurement on audio amplifiers
GB 17625.1 Electromagnetic compatibility - Limits - Limits for harmonic current emissions (equipment input current ??? 16 A per phase)
GB/T 17626.2 Electromagnetic compatibility (EMC) - Testing and measurement techniques - Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques - Radiated radio-frequency electromagnetic field immunity test
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test
GB/T 17626.5 Electromagnetic compatibility - Testing and measurement techniques - Surge immunity test
GB/T 17626.6-2008 Electromagnetic compatibility - Testing and measurement techniques - Immunity to conducted disturbances induced by radio-frequency fields GB/T 17626.11 Electromagnetic compatibility - Testing and measurement
techniques - Voltage dips, short interruptions and voltage variations immunity tests GB 17799.4 Electromagnetic compatibility (EMC) - Generic standards - Emission standard for industrial environments
GB/Z 18039.1-2000 Electromagnetic compatibility - Environment - Classification of electromagnetic environments
IEC 60268-1 Sound system equipment - Part 1. General
ITU-R 500-4 Method for the subjective assessment of the quality of television pictures
ITU-R 562-3 Subjective assessment of sound quality - Section 10C - Audio - Frequency characteristics of sound - Broadcasting signals
3 Terms and definitions
The following terms and definitions and those defined in GB/T 4365 are applicable to this document.
3.1
electromagnetic compatibility; EMC
A capability of apparatus or system working normally in its electromagnetic environment without causing any unbearable electromagnetic disturbance to anything in its electromagnetic environment.
[GB/T 4365-2003, 161-01-07]
3.2
port
A special interface for the specific apparatus in an electromagnetic environment (see Figure 1).
5 Disturbance phenomenon
This Part specifies the immunity requirements for the following disturbance phenomenon (see Table 1).
1 Radio frequency electromagnetic field;
2 Electrostatic discharge;
3 Magnetic field;
Note. There are two tests, using the uniform field (3a) and the non-uniform field (3b). This non-uniform field test is designed to measure the magnetic field that actually acts on the exterior surface of the apparatus cabinet and the immunity to poor screening. 4 Electrical fast transient burst, common mode;
5 Audio common mode;
6 Radio frequency common mode;
7 Surge, line-line and line-earth;
8 Voltage drop;
9 Voltage interruption.
6 Immunity requirements
The apparatus included in the scope of this Part shall comply with the requirements of this Part under a separate rated power supply. Some examples of power supplies are listed in Clause 1.
Immunity requirements are shown in Table 1.
interruption
Functional
earth port
4 Fast pulse
group common
mode
0.5 kV peak value
common mode
2 kV peak value
common mode
GB/T
17626.4 B 5, 6, 20
Functional
earth ...

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