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JJF 1540-2015 English PDF

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US$369.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1540-2015: Calibration specification for online testers of winding temperature rise
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1540-2015	369	Add to Cart	4 days	Calibration specification for online testers of winding temperature rise	Valid

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Basic data

Standard ID: JJF 1540-2015 (JJF1540-2015)
Description (Translated English): Calibration specification for online testers of winding temperature rise
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Classification of International Standard: 17.220
Word Count Estimation: 16,142
Date of Issue: 2015-06-15
Date of Implementation: 2015-09-15
Quoted Standard: GB 755; GB 4706.1; GB 9706.1
Regulation (derived from): AQSIQ Announcement 2015 No.72
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This Standard applies to power frequency (50 Hz or 60 Hz) line winding temperature rise tester under conditions (hereinafter referred to as the tester) calibration resistor function. This Standard does not apply to online inverter winding temperature rise tester calibration.

JJF 1540-2015: Calibration specification for online testers of winding temperature rise

---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.
(Online winding temperature tester calibration specification) People's Republic of China National Metrology Technical Specifications Online Winding Temperature Calibration Specification Issued on. 2015-06-15 2015-09-15 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Online winding Calibration temperature test norms eratureRise Focal point. the National Technical Committee on Electromagnetic measurement Main drafting unit. Zhejiang Institute of Metrology China Institute of Metrology Participated in the drafting unit. electrical Hangzhou Institute of Research Ltd. Jiangsu Province Institute of Metrology Guangdong Provincial Institute of Metrology This specification commissioned the National Technical Committee Electromagnetic responsible for the interpretation of measurement The main drafters of this specification. Luo Jin (Zhejiang Institute of Metrology) Yefen Bin (Institute of Research Hangzhou Electric Co., Ltd.) Shao Haiming (China Institute of Metrology) Drafters participate. Chen Zhiming (Zhejiang Institute of Metrology) Fan Yi (Jiangsu Province Institute of Metrology) Ni Wei (Zhejiang Institute of Metrology) Gu Ying (Guangdong Institute of Metrology)

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Overview (1) 4 Metrological characteristics (1) 4.1 DC resistance (1) 4.2 load voltage changes affect the amount of (1) 5 calibration conditions (1) 5.1 Environmental conditions (1) 5.2 Power supply (1) 5.3 standards and other measuring equipment (2) 6 calibration items and calibration methods (2) 6.1 calibration items (2) 6.2 Calibration Method (2) 7 Calibration Results The expression (4) 8 Recalibration interval (4) Appendix A calibration original record format (5) Appendix B Calibration Certificate page format (6) Appendix C calibration certificate calibration results page format (7) Appendix D resistance temperature measurement calculation formula (8) Appendix E Measurement Uncertainty Example (9)

Introduction

This specification based JJF 1071-2010 "National Calibration Specifications writing rules" establishment. The drafting of this specification with reference to the use of the relevant provisions of the following national standards. GB 755 fixed and rotary motor of Energy; Part 1 GB 4706.1 Safety of household and similar electrical appliances. General requirements; GB 9706.1 Medical Electrical equipment - Part 1. General requirements for safety. The specification for the first time to develop. Online Winding Temperature Calibration Specification

1 Scope

This specification applies to power frequency (50Hz or 60Hz) line winding temperature rise tester under conditions (hereinafter referred to as test Tester) calibration resistor function. This specification does not apply to online inverter winding temperature rise tester calibration. 2. References This specification refers to the following documents. GB 755 rotary motor fixed and performance. Part 1 GB 4706.1 Safety of household and similar electrical appliances. General requirements. GB 9706.1 Medical Electrical Equipment Part 1. General requirements for safety. For dated references, only the edition applies to the specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 Overview

Tester is a measure of motors and transformers and other electrical products in the charged state of the work for electronic winding temperature rise Equipment, mainly by the DC current source, filter, A/D converters, optical isolators and microcontrollers and other components, Winding temperature measurement is widely used in medical electronics, home appliances and farm equipment and other products. Tester belong to resistance measuring instrument, its working principle is the direct current output by the constant current source to test internal winding, A voltage signal is amplified, after A/D conversion and the CPU into the display circuit, respectively measured electrical windings No pressure loading and loading resistance value obtained at power measured winding temperature resistance method (calculation formula see Appendix D) Working temperature rise for some time.

4 Metrological characteristics

4.1 DC Resistance Tester DC resistance measurement range of 0.1Ω ~ 10kΩ, the maximum permissible error does not exceed ± 0.2%. 4.2 load voltage change rate on In winding the charged state, the applied voltage variation of resistance tester indication of the impact does not exceed ± 0.2%. Note. All the above technical indicators are not used for determining eligibility for reference only.

5 calibration conditions

5.1 Environmental conditions Ambient temperature. 20 ℃ ± 5 ℃; Relative humidity. 35% ~ 75%. 5.2 Power supply a) voltage. 220V ± 22V; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1540-2015_English be delivered?

Answer: Upon your order, we will start to translate JJF 1540-2015_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 JJF 1540-2015_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1540-2015_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.