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JJF 1741-2019 English PDF

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US$1159.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1741-2019: Calibration Specification for Surge Simulators
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1741-2019	1159	Add to Cart	7 days	Calibration Specification for Surge Simulators	Valid

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Basic data

Standard ID: JJF 1741-2019 (JJF1741-2019)
Description (Translated English): Calibration Specification for Surge Simulators
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Classification of International Standard: 17.220
Word Count Estimation: 54,553
Date of Issue: 2019
Date of Implementation: 2019-12-27
Issuing agency(ies): State Administration for Market Regulation

JJF 1741-2019: Calibration Specification for Surge Simulators

---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.
(Calibration Specification for Surge (Shock) Mold) National Metrology Technical Specifications of the People's Republic of China Surge (impact) simulator calibration specification 2019-09-27 released 2019-12-27 Implementation Issued by the State Administration for Market Regulation Surge (impact) simulator Calibration specification SurgeSimulators Focal point. National Radio Metrology Technical Committee Main drafting unit. Liaoning Institute of Metrology China Institute of Metrology Participated in the drafting. Guangdong Institute of Metrology Jiangsu Institute of Metrology Shanghai Institute of Metrology and Testing Technology This specification entrusts the National Radio Measurement Technical Committee to be responsible for the interpretation The main drafters of this specification. Song Hao (Liaoning Institute of Metrology) Huang Pan (China Institute of Metrology) Lin Haoyu (China Institute of Metrology) Participating drafters. Tang Hong (Liaoning Institute of Metrology) Liu Wengang (Guangdong Institute of Metrology) Pinzhang Zhao (Jiangsu Institute of Metrology) Shi Bin (Shanghai Institute of Metrology and Testing Technology)

Introduction (Ⅱ) 1 scope (1) 2 Reference documents (1) 3 Terms and measurement units (1) 3.1 Surge (Shock) (1) 3.2 Front time (1) 3.3 Duration (1) 3.4 Residual surge (impact) voltage(2) 3.5 Undesired surge (impact) voltage(2) 4 Overview (2) 5 Metering characteristics (4) 5.1 Surge generator (4) 5.2 Surge generator connected to power line coupling and decoupling network (4) 5.3 Surge generator connected to asymmetric interconnection line coupling and decoupling network (6) 5.4 Surge generator connected to symmetric interconnection line coupling and decoupling network (7) 5.5 Communication surge generator (8) 5.6 Communication surge generator coupling and decoupling network (9) 6 Calibration conditions (9) 6.1 Environmental conditions (9) 6.2 Measurement standards and other equipment (9) 7 Calibration items and calibration methods (10) 7.1 Calibration of surge generator (11) 7.2 Calibration of the coupling and decoupling network of the surge generator connected to the power line (13) 7.3 Calibration of coupling and decoupling network of surge generator connected to asymmetric interconnection (16) 7.4 Calibration of coupling and decoupling network of surge generator connected to symmetric interconnection (17) 7.5 Calibration of communication surge generator (18) 7.6 Calibration of the coupling and decoupling network of the communication surge generator (19) 8 Calibration results (20) 9 Re-calibration interval (20) Appendix A Original Record Format (21) Appendix B. Internal page format of calibration certificate (33) Appendix C Calibration Uncertainty Evaluation Examples of Major Items (44)

Introduction

This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications", JJF 1059.1-2012 "Measurement The requirements in "Evaluation and Expression of Uncertainty of Measurement" shall be compiled. This specification refers to GB/T 17626.5 "Electromagnetic compatibility test and measurement technology surge (impact) immunity test Test” and IEC 61000-4-5.2014 “Electromagnetic compatibility test and measurement technology surge (impact) immunity test” Relevant clauses in the This specification is released for the first time. Surge (impact) simulator calibration specification

1 Scope

This specification applies to surge (impact) resistance in accordance with GB/T 17626.5 "Electromagnetic compatibility test and measurement technology" Disturbance Test" and IEC 61000-4-5.2014 "Electromagnetic Compatibility Test and Measurement Technology Surge (Impact) Immunity The calibration of the surge (impact) generator and coupling and decoupling network required in the “Degree Test” is also suitable for electromagnetic compatibility immunity Calibration of the surge (impact) simulator part of the comprehensive test system.

2 Reference documents

This specification refers to the following documents. GB/T 17626.5 Electromagnetic compatibility test and measurement technology surge (impact) immunity test IEC 61000-4-5.2014 Electromagnetic compatibility test and measurement technology surge (impact) immunity test (Electromagneticcompatibility-Testingandmeasurementtechniques-Surgeimmunity test) For dated reference documents, only the dated version applies to this specification; for undated references The latest version (including all amendments) is applicable to this specification.

3 Terms and units of measurement

The following terms and definitions defined in GB/T 17626.5 apply to this code. 3.1 Surge (impact) surge A transient wave of current, voltage or power transmitted along a line or circuit, which is characterized by a rapid rise first and then a slow decline. 3.2 Fronttime The wavefront time of the surge (impact) voltage is a virtual parameter, defined as two points. 30% peak and 90% peak The corresponding time interval between 1.67 times, the unit is μs. The wavefront time of the surge (impact) current is a virtual parameter, defined as two points. 10% peak and 90% peak 1.25 times of the time interval corresponding to between, the unit is μs. 3.3 duration The duration of surge (impact) voltage is that the surge (impact) voltage rises to 50% peak value and drops to 50% The time interval between the two peak points, in μs. The duration of surge (impact) current (differential mode) is a virtual parameter, defined as surge (impact) current 1.18 times the corresponding time interval between the two points rising to 50% peak and falling to 50% peak, the unit is μs. The duration of surge (impact) current (common mode) is a virtual parameter, defined as surge (impact) current 1.04 times the corresponding time interval between the two points rising to 50% peak and falling to 50% peak, the unit is μs. The short-circuit current duration of a surge simulator used for unshielded outdoor symmetrical communication lines is defined as surge (impact) current The time interval between the two points when the flow rises to 50% peak value and when it drops to 50% peak value, the unit is μs. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1741-2019_English be delivered?

Answer: Upon your order, we will start to translate JJF 1741-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1741-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1741-2019_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.