GB/T 19954.1-2016 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 19954.1-2016: Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 1: Emissions Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete GB/T 19954.1: Historical versions
Similar standardsGB/T 19954.1-2016: Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 1: Emissions---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT19954.1-2016 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 33.160.20 M 74 Replacing GB/T 19954.1-2005 Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 1. Emissions 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 ContentsForeword ... 4 1 Scope ... 6 2 Normative references ... 7 3 Terms and definitions ... 8 4 Electromagnetic environment ... 10 5 Disturbance phenomenon ... 11 6 Emission limits ... 11 7 Test conditions ... 15 8 Buyer/user documentations ... 16 Annex A (Normative) Measurement method for radiation magnetic field between 50 Hz ~ 50 kHz ... 18 Annex B (Normative) Inrush current measurement method ... 22 Annex C (Normative) Measurement method for telecommunications/network port conducted emission ... 24 Annex D (Normative) System evaluation and field measurement ... 25 Annex E (Informative) Apparatuses transmit or control signals with infrared emission ... 27 Annex F (Informative) Apparatuses used near the wireless microphone receiver and receiver antenna ... 28 Annex G (Informative) Description of the inrush current limit of “thermal switch” ... 30 Annex H (Informative) Background of this Part and the relevant immunity standard (GB 19954.2) and the use reason of measurement methods and limits ... 31 Bibliography ... 37ForewordGB/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 1 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 19954.1-2005 “Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 1. Emissions”. Main changes in this Part compared with GB/T 19954.1-2005 are as follows. - MODIFY the normative references; - ADD definitions, requirements and measurement methods for telecommunications or network ports in Clause 3 Terms and definitions, Clause 5 Disturbance phenomenon and Clause 6 Emission limits; - ADD additional information that shall be stated by the manufacturer in Clause 8 Buyer/user documentations; - ADJUST the location of Clause 6 Emission limits, Clause 7 Test conditions and Clause 8 Buyer/user documentations in this Part; ADJUST the clause and article number accordingly; - COMBINE Table 1 and Table 2 of GB/T 19954.1-2005 INTO Table 1 in this Part. DELETE Method B (disturbance power measurement) in disturbance phenomenon 1; - MODIFY Annex B (normative) Measurement method for inrush current; - ADD Annex C (normative) Measurement method for telecommunication/network port conducted emission; - DELETE Annex F (informative) Replaced test methods for signal, control and DC power supply port conducted emission in the frequency range of 0.15 MHz to 30 MHz; - MODIFY Annex G (informative) Inrush current limits of “thermal switch”. 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. Xu Wei, Ding Shaohua, Shen Xueqi, Lin Jingping, Zhu Lin, Guo Xiaoqi. The previous edition of the standard replaced by this this standard is as follow. - GB/T 19954.1-2005. Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use - Part 1. Emissions1 ScopeThis Part of GB/T 19554 specifies the limits and measurement methods of the apparatus covered by the applicable scope, which relate to the requirements of continuous and transient disturbances, conducted and radiated disturbances, 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 7.3. 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. See note 2. Annex E provides relevant information on infrared emitters with wavelengths of 0.7 μm to 1.6 μm. 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, such as when an apparatus is in close proximity to a high-sensitivity apparatus, the limits shall be tightened and additional measurements shall be made to limit its electromagnetic emissions. Professional user receiving apparatus may be very sensitive to disturbance. See Annex F for relevant information. This Part does not apply to. - consumer electronics products; - specially designed security system apparatus; - emission apparatus designed for wireless communications. NOTE 2. In order to avoid interference, the manufacturer shall consider the characteristics of other apparatuses that may be in the same environment, to determine whether it is necessary to set the emission limits in an additional frequency range.2 Normative referencesThe 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 4343.1 Electromagnetic compatibility - Requirements for household appliances electric tools and similar apparatus - Part 1. Emission GB 4343.2 Electromagnetic compatibility - Requirements for household appliances electric tools and similar apparatus - Part 2. Immunity - Product family standard GB/T 4365 Electrotechnical terminology - Electromagnetic compatibility GB 9254 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement GB 10963.1 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installation - Part 1. Circuit-breakers for a.c. operation GB 10963.2 Circuit-breakers for overcurrent protection for household and similar installation - Part 2. Circuit-breakers for a.c. and d.c. operation GB/T 12060.3 Sound system equipment - Part 3. Methods of measurement on audio amplifiers GB 13837 Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics - Limits and methods of measurement GB 17625.1 Electromagnetic compatibility - Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase) GB 17625.2-2007 Electromagnetic compatibility (EMC) - Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection GB/T 17625.7 Electromagnetic compatibility - Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤ 75 A and subject to conditional connection GB 17799.4 Electromagnetic compatib... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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