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GB/T 5095.2303-2021 English PDF

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US$264.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 5095.2303-2021: Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-3: Screening and filtering tests - Test 23c: Shielding effectiveness of connectors and accessories - Line injection method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5095.2303-2021	264	Add to Cart	3 days	Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-3: Screening and filtering tests - Test 23c: Shielding effectiveness of connectors and accessories - Line injection method	Valid

Similar standards

GB/T 17737.100 GB/T 21711.1 GB/T 5095.2501 GB/T 5095.2502 GB/T 5095.2307

Basic data

Standard ID: GB/T 5095.2303-2021 (GB/T5095.2303-2021)
Description (Translated English): Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-3: Screening and filtering tests - Test 23c: Shielding effectiveness of connectors and accessories - Line injection method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L23
Word Count Estimation: 14,191
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 5095.2303-2021: Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-3: Screening and filtering tests - Test 23c: Shielding effectiveness of connectors and accessories - Line injection method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Part 23-3.Screening and filtering tests - Test 23c. Shielding effectiveness of connectors and accessories - Line injection method ICS 31.220.10 L23 National Standards of People's Republic of China Electromechanical components for electronic equipment Basic test procedures and measurement methods Part 23-3.Shielding and Filtering Test Test 23c. Shielding effectiveness of connectors and accessories Line injection (IEC 60512-23-3.2018,Connectorsforelectricalandelectronicequipment- Testsandmeasurements-Part 23-3.Screeningandfilteringtests-Test23c. Lineinjectionmethod, IDT) Released on 2021-03-09 Implemented on 2021-10-01 State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅲ 1 Scope 1 2 Normative references 2 3 Terms and definitions 2 4 Test method 2 4.1 Test requirements 2 4.2 Applicable frequency range 2 5 Test equipment 3 6 Preparation of the test sample 3 6.1 General 3 6.2 Circular connector 3 6.3 Rectangular connector 4 6.4 Printed Board Connector 4 6.5 Impedance matching of primary and secondary circuits 5 6.6 Calibration of test equipment 5 7 Measurement of shielding effect 6 7.1 Measurement 6 7.2 Method of calculating shielding effectiveness (attenuation) from surface transmission impedance 6 8 Requirements 7 9 Rules to be stipulated by relevant standards 7 Reference 8

Foreword

GB/T 5095 "Basic test procedures and measurement methods for electromechanical components for electronic equipment" is divided into several parts according to the test methods. Part 23 of GB/T 5095 is shielding and filtering test. The parts that have been released or planned to be released are as follows. ---Part 23-3.Shielding and Filtering Test Test 23c. The shielding effect line injection method of connectors and accessories; ---Part 23-4.Shielding and filtering test test 23d. reflection of transmission line in the time domain; --- Part 23-7.Shielding and Filtering Test Test 23g. The effective transfer impedance of the connector. This part is part 23-3 of GB/T 5095. This section was drafted in accordance with the rules given in GB/T 1.1-2009. The translation method used in this part is equivalent to the IEC 60512-23-3.2018 ``Test and Measurement of Connectors for Electrical and Electronic Equipment No. Part 23-3.Shielding and Filtering Test Test 23c. Line Injection Method for Shielding Effect of Connectors and Accessories". The Chinese documents that have a consistent correspondence with the international documents cited in this section are as follows. ---GB/T 4210-2015 Electrotechnical terminology electromechanical components for electronic equipment (IEC 60050-581.2008, IDT); ---GB/T 5095.1-1997 Basic test procedures and measurement methods for electromechanical components for electronic equipment Part 1.General (IEC 60512-1.1994, IDT); ---GB/T 31723.406-2015 Metal Communication Cable Test Method Part 4-6.Electromagnetic Compatibility Surface Transfer Impedance Line injection method (IEC 62153-4-6.2006, IDT). This section has made the following editorial changes. ---The standard name is composed of "Connector Test and Measurement for Electrical and Electronic Equipment Part 23-3.Shielding and Filtering Test Test 23c. The Shielding Effect Line Injection Method for Connectors and Accessories is revised to the Basic Test Procedures and Measurements for Electromechanical Components for Electronic Equipment Measurement Method Part 23-3.Shielding and Filtering Test Test 23c. Shielding Effect Line Injection Method for Connectors and Accessories''; --- Delete "Note 2" and "Note 4" in "1 Scope". Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This part was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part is under the jurisdiction of the National Standardization Technical Committee of Electromechanical Components for Electronic Equipment (SAC/TC166). Drafting organizations of this section. Sichuan Huafeng Enterprise Group Co., Ltd., China Electronics Standardization Institute. The main drafters of this section. Pang Bin, Zhu Ming, Xiao Miao, Liu Xiaofeng, Wang Qilong. Electromechanical components for electronic equipment Basic test procedures and measurement methods Part 23-3.Shielding and Filtering Test Test 23c. Shielding effectiveness of connectors and accessories Line injection

1 Scope

This part of GB/T 5095 specifies the measurement of shielded connectors or shielded accessories and terminated shielded cables without providing overall shielding The standard test method for the shielding effect of the connector. Note 1.According to the geometry of the connector, in fact, it is not always possible to achieve continuous complete shielding. This test method is suitable for shielded connectors and connector accessories with shielding capabilities, and can test the following connectors with different structures. ---Circular connector; ---Rectangular connector; ---Printed board connector; ---Connector shielding accessories. Note 2.For the definition of accessories, see IEV581-24-10.Shielded accessories, that is, accessories that provide shielding functions for unshielded connectors, which can provide electrical continuity Appropriate shielding shell, inter-matching connector device, also can be the metal mounting surface of the free-end cable connector shell and the fixed-end connector shell The shielding layer between the shielded cables. A cable shield clamp is provided on the shell of the free end connector. The principle of this test method is to use the inherent shielding characteristics of the connector/accessory/cable assembly, and its surface transfer impedance can be expressed as shielding The ratio of the longitudinal voltage in the layer to the current on the surface of the housing. The test method is based on two impedance-matched circuits, and the test principle is shown in Figure 1.The connector under test is incorporated in the secondary circuit 02.primary The injection line that activates the electromagnetic field impedance matching in loop 01 is arranged in parallel on the surface of the test sample. This test method is also suitable for measuring the shielding of connectors equipped with triaxial contacts, twisted-pair shielded cables, and connectors used in data bus systems. effect. Description. Z01---primary loop characteristic impedance; P1 ---primary loop power; Z02 --- secondary loop characteristic impedance; P2f --- secondary loop remote power; L --- length of coupling section; P2n --- near-end power of secondary loop. Figure 1 Principle of line injection method ......

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Question 1: How long will the true-PDF of GB/T 5095.2303-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 5095.2303-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 5095.2303-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 5095.2303-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.