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JJF 1374-2012 English PDF

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US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1374-2012: Calibration Specification for Elevator Overspeed Governor Testers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1374-2012	399	Add to Cart	3 days	Calibration Specification for Elevator Overspeed Governor Testers	Valid

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Basic data

Standard ID: JJF 1374-2012 (JJF1374-2012)
Description (Translated English): Calibration Specification for Elevator Overspeed Governor Testers
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 17,190
Quoted Standard: JJF 1001; GB/T 7024-2008; GB/T 7588-2003; GB/T 10058-2009; GB/T 10059-2009
Regulation (derived from): AQSIQ Announcement No. 206 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the elevator speed governor tester calibration.

JJF 1374-2012: Calibration Specification for Elevator Overspeed Governor Testers

---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 Elevator Overspeed Governor Testers People's Republic of China National Metrology Technical Specifications Elevator governor tester calibration specification Issued on. 2012-12-12 2013-03-12 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Elevator governor tester calibration specification ElevatorOversp Focal point. the National Technical Committee of shock and vibration measurement speed Main drafting unit. Beijing Institute of Metrology detection Participated in the drafting unit. Beijing Blue Sky Technology Co., Ltd. Hao Friends Jiangxi Institute of Metrology This specification entrust national shock and vibration speed measurement technology committee responsible for the interpretation The main drafters of this specification. In Baoliang (Beijing Institute of Metrology detection) Li Gang (Beijing Institute of Metrology detection) Drafters participate. He Jin (Beijing Hao Friends of the Blue Sky Technology Co., Ltd.) Guobing Yi (Beijing Institute of Metrology detection) Yang Qiqi (Jiangxi Institute of Measurement and Testing)

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 Terms (1) 3.1 governor (1) 3.2 rated speed (1) 3.3 Safety gear (1) 3.4 uplink overspeed protection device (1) 3.5 feed acceleration (1) 4 Overview (2) 5 Metrological characteristics (2) Speed 5.1 (2) 5.2 feed acceleration (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 standards and other measuring equipment (3) 7 calibration items and calibration methods (3) 7.1 speed indication error of calibration (3) 7.2 feed acceleration record (5) 8 calibration results expression (5) 8.1 Calibration Data Processing (5) 8.2 Calibration of Uncertainty Evaluation (5) 8.3 calibration certificate (5) 9 Recalibration interval (5) Appendix A speed measuring indication error Evaluation of Uncertainty Example (6) Appendix B Calibration record contents (8) Appendix C calibration certificate contents (10)

Introduction

In the present specification JJF 1071 "National Calibration Specifications writing rules", JJF 1001 "universal metering and fixed term Justice ", JJF 1059" Evaluation and Expression of Uncertainty in Measurement "and JJF 1094" measuring instrument characteristics evaluation "basis Series of specifications developed. This specification primarily with reference to GB/T 7024 "elevators, escalators, moving walkways term", GB/T 7588 "Elevator manufacturing and installation of safety norms", GB/T 10058 "elevator technical conditions" and GB/T 10059 "elevator testing Method "and compiled. The specification for the first time to develop. Elevator governor tester calibration specification

1 Scope

This standard applies to the elevator governor tester calibration. 2. References This specification refers to the following documents. JJF 1001 common measurement terms and definitions GB/T 7024-2008 elevators, escalators, moving walkways term GB/T 7588-2003 elevator manufacturing and installation of safety norms GB/T 10058-2009 elevator technical conditions GB/T 10059-2009 Test methods Elevator For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 Terms

JJF 1001-2011 "common measurement terms and definitions" and GB/T 7024-2008 "elevators, escalators, Travelator term "the relevant definitions apply to this specification. Cited below some of the most relevant terms and definitions and Are some of the norms applicable to other terms and definitions. 3.1 governor overspeedgovernor [GB/T 7024-2008,4.68] When the elevator speed exceeds the rated speed of a certain value, it can cut off the safety circuit operation or lead to further security Full clamp or uplink overspeed protection device which is activated automatically slow down the elevator stopped until the safety device. 3.2 rated speed ratedspeed [GB/T 7024-2008,3.1.2] Design by the elevator car speed. Note. the elevator industry in the detection of the elevator governor elevator speed governor tester initial set value that is equal to the amount seized elevator Set speed value. 3.3 safety gear safetygear [GB/T 7024-2008,4.70] When the governor movements to stop the car or counterweight remain stationary, and can be clamped in a machine on the rails Mechanical safety devices. 3.4 uplink overspeed protection device upstreamoverspeedprotectiondevice When the car uplink speeds greater than the rated speed of 115%, at least make the car slow the deceleration device. 3.5 feed acceleration feedacceleration Elevator governor lift overspeed governor wheel drive tester from the initial velocity to the electrical contacts of the switching speed of the process Instantaneous acceleration values. Note. The "Feed acceleration" in the elevator industry commonly referred to as "servo acceleration." ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1374-2012_English be delivered?

Answer: Upon your order, we will start to translate JJF 1374-2012_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 JJF 1374-2012_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1374-2012_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.