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GB/T 37141.2-2018 English PDF

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US$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 37141.2-2018: Guide to UV imaging detection of electrical equipment in high altitude regions -- Part 2: Transmission lines
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37141.2-2018	599	Add to Cart	5 days	Guide to UV imaging detection of electrical equipment in high altitude regions -- Part 2: Transmission lines	Valid

Similar standards

DL/T 345 DL/T 805.4 DL/T 435 GB/T 43794 GB/T 37141.1 GB/T 40221

Basic data

Standard ID: GB/T 37141.2-2018 (GB/T37141.2-2018)
Description (Translated English): Guide to UV imaging detection of electrical equipment in high altitude regions -- Part 2: Transmission lines
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F23
Classification of International Standard: 29.240.20
Word Count Estimation: 30,359
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37141.2-2018: Guide to UV imaging detection of electrical equipment in high altitude regions -- Part 2: Transmission lines

---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.
Guide to UV imaging detection of electrical equipments in high altitude regions--Part 2. Transmission lines ICS 29.240.20 F23 National Standards of People's Republic of China UV imaging of electrical equipment at high altitudes Detection guidelines - Part 2. Transmission lines highaltituderegions-Part 2.Transmissionlines Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Detection conditions 1 5 Detection method 2 6 Altitude correction of ultraviolet photon number 3 7 Discharge type and cause judgment 3 8 Defect classification and processing 3 9 detection cycle 3 10 Data Management 4 Appendix A (Normative) Requirements for UV imaging equipment 5 Appendix B (informative) The value of the ultraviolet photon distance correction constants C1 and C2 Appendix C (informative) Discharge parameters and feature quantities 7 Appendix D (informative) Correction of photon number of different UV imaging equipment 8 Appendix E (informative appendix) Typical discharge type of transmission line, evaluation method of equipment discharge state, diagnosis of discharge type and cause 10 Appendix F (informative) UV detection report for charged equipment 24 Reference 25

Foreword

GB/T 37141 "Guidelines for Ultraviolet Imaging Detection of Electrical Equipment in High Altitude Areas" is divided into the following sections. --- Part 1. Substation; --- Part 2. Transmission lines. This part is the second part of GB/T 37141. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part was proposed by China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Plateau Electrical Products Environmental Technology Standardization Technical Committee (SAC/TC330). This section was drafted by. Chongqing University, Kunming Institute of Electrical Apparatus, State Grid Sichuan Electric Power Company Electric Power Research Institute, South China Overhaul Test Center of UHV Transmission Company of Power Grid Co., Ltd., Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Guangdong Yuan Optoelectronics Co., Ltd. Cable Industry Co., Ltd., Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Qingdao Changsheng Solar Power Technology Co., Ltd., Qinghai Electric Power Company Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Yunnan Electric Power Research Institute (Group) Co., Ltd., Ann Huisenyuan Electric Co., Ltd., Suzhou Electric Apparatus Research Institute Co., Ltd., China Electric Power Research Institute Wuhan Branch, National Power Investment Yunnan International Power Investment Co., Ltd. The main drafters of this section. Jiang Xingliang, Hu Qin, Zhang Zhijin, Zhou Qiongfang, Zhang Xinghai, Fan Songhai, Wang Ke, Liu Rui, Xia Gulin, Deng Jun, Zhao Ronghao, Xu Xiaowei, Peng Jing, Jiang Luzhen, Ma Xiaohong, Zhang Xun, Gao Bo, Yang Ajuan, He Hongsheng, Qin Yuanming, Wang Baoying, Li Ximin, Chen Yong, Yan Shibin, Tian Qingsheng, Wang Lei, Kang Yi, Wu Xiqiu, Hu Alcohol, Xie Xiongjie, Wang Jun.

Introduction

This part is based on the research results of the discharge UV detection conducted by the relevant units in the actual transmission lines and laboratories. The methods and criteria presented in this section are derived from examples observed in field and laboratory tests. Taking into account environmental parameters and instrument models, Version differences, different models and batches of UV imagers may not observe a completely consistent discharge in the same environment. UV imaging of electrical equipment at high altitudes Detection guidelines - Part 2. Transmission lines

1 Scope

This part of GB/T 37141 specifies the detection strip for the detection of corona and arc discharge on AC transmission lines using UV imaging equipment. Parts, detection methods, altitude correction of ultraviolet photon number, discharge type and cause determination, defect classification and processing, detection cycle and data management. This section applies to AC transmission lines in the area of 1000m ~ 5000m above sea level. The DC transmission line corona and arc discharge can be implemented with reference to this section.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. DL/T 345 Guidelines for the application of ultraviolet diagnostic technology for live equipment DL/T 664 Infrared Diagnostic Application Specification for Live Equipment

3 Terms and definitions

The following terms and definitions defined by DL/T 345 and DL/T 664 apply to this document. 3.1 Photon number photonnumber The number of photons detected by the UV imaging device that reflect the intensity of the discharge. 3.2 Average photon number meanphotonnumber The average of the number of photons (3.1) detected during the specified time period. 3.3 Gain gain The ratio of the ultraviolet imaging device to detecting the amplification of the photon signal. 3.4 Detection distance detectiondistance The linear distance between the detected area and the lens of the UV imaging device.

4 Detection conditions

4.1 Environment 4.1.1 Wind speed is less than 5m/s. 4.1.2 Ambient temperature -30 ° C ~ 45 ° C. 4.1.3 Avoid interference such as electric welding, light source, and combustion. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 37141.2-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 37141.2-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 37141.2-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 37141.2-2018_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.