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JJG 1168-2019 English PDF

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US$489.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 1168-2019: AC Peak Voltmeters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1168-2019	489	Add to Cart	4 days	AC Peak Voltmeters	Valid

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Basic data

Standard ID: JJG 1168-2019 (JJG1168-2019)
Description (Translated English): AC Peak Voltmeters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Classification of International Standard: 17.220
Word Count Estimation: 22,215
Date of Issue: 2019
Date of Implementation: 2020-03-31
Issuing agency(ies): State Administration for Market Regulation

JJG 1168-2019: AC Peak Voltmeters

---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.
(Verification Regulation of AC Peak Voltmeter) National Measurement Verification Regulations of the People's Republic of China AC peak voltmeter Published on December 31,.2019 2020-03-31 Implementation Issued by the State Administration of Market Supervision and Administration AC peak voltmeter Verification regulations Centralized unit. National Electromagnetic Measurement Technical Committee High-voltage Measurement Sub-Technical Committee Main drafting unit. National High Voltage Measuring Station State Grid Henan Electric Power Research Institute of Electric Power Research Yichang Metrology Verification Test Institute Participating in the drafting unit. State Grid Anhui Electric Power Co., Ltd. Electric Power Research Institute State Grid Hunan Electric Power Research Institute of Electric Power Research This regulation entrusts the National Electromagnetic Measurement Technical Committee High Voltage Measurement Sub-Technical Committee to interpret The main drafters of this regulation. Wang Siqi (National High Voltage Metering Station) Zhiqiang He (State Grid Henan Electric Power Research Institute of Electric Power) Zhang Jun (National High Voltage Metering Station) Chen Yu (Yichang Metrology Verification Test Institute) Participating drafters. Zhou Lihua (State Grid Anhui Electric Power Co., Ltd. Electric Power Research Institute) Luo Zhikun (State Grid Hunan Electric Power Co., Ltd. Electric Power Research Institute)

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and units of measurement (1) 3.1 Peak AC voltage (1) 3.2 Input impedance (1) 4 Overview (1) 4.1 Peak detection method (1) 4.2 Real-time sampling method (2) 5 Measurement performance requirements (2) 5.1 Measuring range (2) 5.2 Accuracy level and maximum allowable error of indicated value (2) 5.3 Indication resolution (3) 5.4 Repeatability of indication (3) 5.5 Input impedance (3) 5.6 Preset function of partial pressure ratio coefficient (3) 5.7 Peak response capability (3) 6 General technical requirements (3) 6.1 Appearance and marking (3) 6.2 Safety performance (3) 7 Control of measuring instruments (4) 7.1 Verification conditions (4) 7.2 The measurement standard used (4) 7.3 Verification items and verification methods (5) 7.4 Processing of verification results (8) 7.5 Verification period (8) Appendix A Verification of Original Record Format (9) Appendix B Format of the inner pages of the certificate of verification/certification result (14) Appendix C Verification Certificate/Verification Result Notification Verification Results Page Format (Page 3) (15)

Introduction

This regulation was written in accordance with JJF1002-2010 "Rules for Compiling National Measurement Verification Regulations". This regulation is issued for the first time. Verification Regulation of AC Peak Voltmeter

1 Scope

This regulation is applicable to AC with a measurement frequency of 10Hz~500Hz and a measurement voltage range of 1V~1.4kV The first verification, subsequent verification and in-use inspection of the peak voltage meter.

2 Reference documents

This regulation refers to the following documents. GB/T 13978-2008 digital multimeter GB/T 16927.3-2010 (IEC 60060-3.2006MOD) high voltage test technology part 3 Definition and requirements of field test For dated reference documents, only the dated version applies to the Regulations; for non-date quoted documents The latest version (including all amendments) is applicable to this regulation.

3 Terms and units of measurement

3.1 Peak value of AC voltage The maximum value of the AC voltage. But it does not count the small high-frequency oscillations caused by destructive discharge. [GB/T 16927.3-2010, definition 7.2.2] 3.2 Input impedance inputimpendence The equivalent impedance between the input terminals under operating conditions. [Rewrite the definition 3.2.12 of GB/T 13978-2008]

4 Overview

The AC peak voltage meter (hereinafter referred to as the peak table) is used to measure the 10 Hz ~ 500 Hz sinusoidal AC voltage peak The voltage measurement device of the value can be used alone or together with the voltage divider to realize the measurement function according to the voltage level, which is widely used Measurement of AC test voltage of electrical equipment. Peak table usually adopts peak detection method or real-time sampling method. 4.1 Peak detection method The principle and circuit of the peak detection method are shown in Figure 1. The peak meter is mainly composed of voltage follower, discrete diode, holding capacitor and control switch. Voltage signal passing After the voltage follower charges the holding capacitor C, the control switches s1 and s2 are used to control the sampling time, when the diode D conducts When on, the voltage on the holding capacitor C increases as the input signal voltage increases; when the input signal drops, two The diode D is cut off, and the holding capacitor C will keep the amplitude of the maximum input voltage signal unchanged, thereby achieving peak detection Features. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 1168-2019_English be delivered?

Answer: Upon your order, we will start to translate JJG 1168-2019_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 1168-2019_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 1168-2019_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.