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JJG 496-2016 English PDF

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Q: Should I purchase the latest version JJG 496-2016?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 496-2016 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$489.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 496-2016: High-voltage Divider at Power Frequency
Status: Valid

JJG 496: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 496-2016	489	Add to Cart	4 days	High-voltage Divider at Power Frequency	Valid
JJG 496-1996	279	Add to Cart	3 days	Verification Regulation of High Voltage Divider at Power Frequency	Obsolete
JJG 496-1987	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Similar standards

JJF 1234 JJG 229 JJG 376 JJG 892 JJG 843 JJG 506

Basic data

Standard ID: JJG 496-2016 (JJG496-2016)
Description (Translated English): High-voltage Divider at Power Frequency
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Word Count Estimation: 21,269
Date of Issue: 2016-11-25
Date of Implementation: 2017-05-25
Older Standard (superseded by this standard): JJG 496-1996
Regulation (derived from): State Administration of Quality Supervision, Inspection and Quarantine Notice No.116 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJG 496-2016: High-voltage Divider at Power Frequency

---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.
High-voltage Divider at Power Frequency National Metrological Verification Regulation of the People's Republic of China Frequency high voltage divider 2016-11-25 release 2017-05-25 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Frequency high voltage divider Verification procedures Replacing JJG 496-1996 Unit. National Electromagnetic Metrology Technical Committee High Pressure Metering Subcommittee Major drafting unit. National high voltage metering station State Grid Jiangsu Electric Power Company Electric Power Research Institute State Grid Hunan Electric Power Company Electric Power Research Institute Participated in the drafting unit. State Grid Shandong Electric Power Company Electric Power Research Institute Suzhou Huadian Electric Co., Ltd. This procedure is entrusted to the National Electromagnetic Metrology Technical Committee of the High Pressure Metrology Subcommittee. The main drafters of this procedure. Zhang jun (national high voltage metering station) Zhou Zhicheng (State Grid Jiangsu Electric Power Company Electric Power Research Institute) Ye Huisheng (State Grid Hunan Electric Power Company Electric Power Research Institute) Wang Siqi (National High Voltage Metering Station) Participate in the drafters. Zhu Zhenhua (State Grid Shandong Electric Power Company Electric Power Research Institute) Liu Shaobo (National High Voltage Metering Station) Yu Qing (Suzhou Huadian Electric Co., Ltd.)

Introduction (II) 1 Scope (1) 2 References (1) 3 terms and units of measurement (1) 4 Overview (1) 5 Measurement performance requirements (2) 5.1 Accuracy class (2) 5.2 Basic error and variation (2) 6 General technical requirements (3) 6.1 Appearance and structure requirements (3) 6.2 Dielectric strength (3) 6.3 Stability (3) 7 Metering device control (3) 7.1 Test conditions (3) 7.2 Verification Project (4) 7.3 Verification method (4) 7.4 Processing of test result (7) 7.5 Notification of test certificate and test result (8) 7.6 Verification cycle (8) Appendix A Verification of the original record format (9) Appendix B Verification Certificate/Verification Result Notification Page Format (Page 2) (12) APPENDIX C CERTIFICATE/QUALIFICATION RESULTS Notice Verification Result Page Style (Page 3) (13)

Introduction

JJF1002-2010 "Rules for the preparation of national metrological verification procedures", JJF1001 "General measurement terms and definitions" JJF1059.1 "Measurement Uncertainty Assessment and Representation" together form a basic series that supports the revision of this Code specification. This procedure is the revision of JJG 496-1996 version, compared with JJG 496-1996, in addition to editorial changes, Major technical changes include. - Added the terms and definitions of "frequency high voltage divider" (see 3.1); - an increase of two levels of accuracy (see 5.1); - modified "environmental conditions" (see 7.1.1); - modified the "insulation strength" reference (see 7.3.2); - Added the "basic error" test method (see 7.3.3). The previous version of this procedure is released as follows. --- JJG 496-1996. Code for high frequency voltage divider of frequency

1 Scope

This procedure applies to the rated voltage of 1kV and above the 45Hz ~ 55Hz high voltage measurement of the resistance, electricity Capacitive, capacitive and electronic voltage divider of the first test, follow-up test and use of inspection.

2 reference file

This procedure refers to the following documents. High voltage test technology - Part 1. General definitions and laboratory requirements GB/T 16927.1-2011 For dated references, only the dated edition applies to this rule; references that are not dated , The latest version (including all amendments) applies to this procedure.

3 terms and units of measurement

A voltage proportional device for converting the primary frequency high voltage into a secondary power frequency voltage for low voltage measurement.

4 Overview

Frequency high voltage divider by the high voltage of the high voltage impedance arm Z1 and the secondary voltage generated by the low voltage impedance arm Z2 string Joint composition, as shown in Figure 1. It is a frequency of high-voltage U1 converted to facilitate low-voltage instruments, instrumentation measurement of the secondary work Frequency voltage U2, and there is a clear proportional relationship between U1 and U2, as in equation (1). For high-voltage and low-voltage impedance arm are well shielded high frequency voltage divider, its partial pressure ratio can be used to resist the arm The value of the calculation, as shown in (2). In order to reduce environmental interference, power frequency high voltage divider secondary voltage output is usually used The shielded cable is connected to the measuring instrument. The shielded sheath of the cable and the capacitance between the core and the low voltage impedance of the voltage divider arm , The secondary measuring cable should be considered as part of the voltage divider. K = U1 U2 (1) K = Z1 Z2 Z2 (2) Where. K --- proportional constant, called the voltage divider ratio; U1, U2 --- primary voltage, secondary voltage rms (or peak), kV; Z1, Z2 --- high and low voltage impedance arm. Usually the frequency of high voltage divider is divided into the following categories. --- high and low voltage impedance arm by the resistor component of the voltage divider known as the resistance of the voltage divider; --- high and low voltage impedance arm composed of a voltage divider called a capacitor voltage divider; --- high and low voltage impedance arm by the resistor and capacitor in series or in parallel composed of voltage divider called resistance-type voltage divider; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 496-2016_English be delivered?

Answer: Upon your order, we will start to translate JJG 496-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 496-2016_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 496-2016_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.

Question 5: Should I purchase the latest version JJG 496-2016?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 496-2016 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.