2023 IEEE IAS Electrical Safety Workshop (ESW)最新文献

Did You Really Test That Interlock? 你真的测试过联锁吗?

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/esw49992.2023.10188229

P. Sullivan

引用次数: 0

Learnings from a 480 Volt Arc-Flash Event 从480伏特电弧闪光事件中吸取教训

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/esw49992.2023.10188374

P. Sullivan, M. Scarborough

引用次数: 0

ARC Quenching Technology in Switchgear – Surpassing IEEE C37.20.7 开关柜中的电弧淬火技术-超越IEEE C37.20.7

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188289

R. Burns, Dan E. Hrncir, Austin M. Johnson

{"title":"ARC Quenching Technology in Switchgear – Surpassing IEEE C37.20.7","authors":"R. Burns, Dan E. Hrncir, Austin M. Johnson","doi":"10.1109/ESW49992.2023.10188289","DOIUrl":"https://doi.org/10.1109/ESW49992.2023.10188289","url":null,"abstract":"As electrical safety continues to be a focal point across the industry, there is a growing need to provide further protection from arc flash incidents. New technologies have emerged to meet this need, creating an opportunity for industry standards and guides to be revised to account for these technologies. Recent publications have shown how arc quenching technology can reduce the available incident energy exposure from switchgear. Those papers referenced testing performed with the latest IEEE C37.20.7 IEEE Guide for Testing Switchgear Rated Up to 52kV for Internal Arcing Faults test guidelines. The IEEE C37.20.7 Accessibility Type 2 and Suffix B rating combination has, for many years, been considered the cornerstone for safety in metal-enclosed switchgear. However, recent testing has shown that it's possible to exceed Type 2B requirements and increase the level of personnel protection that arc quenching technology can offer. This new level of protection has been demonstrated through arcing fault testing in equipment utilizing arc quenching technology that controls and contains the arcing energy inside of the switchgear even when circuit breakers are racked out or removed completely from their cells.","PeriodicalId":167800,"journal":{"name":"2023 IEEE IAS Electrical Safety Workshop (ESW)","volume":"14 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121947548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Best Practices for Non-Nationally Recognized Testing Laboratory Utilization Equipment Inspection Processes 非国家认可的测试实验室使用设备检验过程的最佳实践

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/esw49992.2023.10188235

Michael G. Anderson, Drew A. Thomas

引用次数: 0

Development of a DC Arc Generator Testbed for Data-Driven Fault Analysis 数据驱动型直流电弧发电机故障分析试验台的研制

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188343

Kristophor R. Jensen, Long Zhao

{"title":"Development of a DC Arc Generator Testbed for Data-Driven Fault Analysis","authors":"Kristophor R. Jensen, Long Zhao","doi":"10.1109/ESW49992.2023.10188343","DOIUrl":"https://doi.org/10.1109/ESW49992.2023.10188343","url":null,"abstract":"This work aims to develop a high-speed direct current arcing fault detection testbed and investigate the characteristics of direct current arcing signals based on a data-driven technique to improve arcing fault detection. The content of this paper will describe the steps taken to execute an experiment designed to examine the light-emissions produced during millisecond-long time intervals of arc generation between copper electrodes. This study includes building custom hardware, setting up a data collection environment, and analyzing the collected data with a singular value decomposition to search for distinguishing characteristics. The hardware built for this experiment includes a photodetector with high-bandwidth log transimpedance amplification. This experiment includes custom electronics, an oscilloscope, a photo-spectrometer, a direct current power supply, a current sensor, and adjustable copper electrode gap. Multiple arcs are generated in succession to build a database of arc generation events. The data collected includes microsecond light amplitude from the custom photodetector, arc current, arc voltage data, and light emission spectrum data. The data series are synchronized and analyzed with a data-driven technique, singular value decomposition, to reveal the dominant characteristics of the analyzed signal. This work has the potential for direct current arc protection applications to improve detection speed and accuracy.","PeriodicalId":167800,"journal":{"name":"2023 IEEE IAS Electrical Safety Workshop (ESW)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126344091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is Absence of Voltage “Live-Dead-Live” Testing According to NFPA 70E Adequate? 没有按照NFPA 70E进行电压“活-死-活”测试是否足够?

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188329

George T. Cole

{"title":"Is Absence of Voltage “Live-Dead-Live” Testing According to NFPA 70E Adequate?","authors":"George T. Cole","doi":"10.1109/ESW49992.2023.10188329","DOIUrl":"https://doi.org/10.1109/ESW49992.2023.10188329","url":null,"abstract":"As the second to last step for an electrically safe work condition (ESWC) to exist, testing for the absence of voltage, commonly called “Live-Dead-Live” testing, is one of the most critical tools to ensure the safety of workers from electric shock and arc flash hazards. It has been required by NFPA 70E® - Standard for Electrical Safety in the Workplace [1] since the 2004 edition, with slight changes between revisions. The 2021 version houses this very important practice in article 120.5(7) which states in part “Use an adequately rated portable test instrument to test each phase conductor or circuit part to test for the absence of voltage. Test each phase conductor or circuit part both phase-to-phase and phase-to-ground.” However, the term “phase-to-phase” is synonymous with only alternate current (ac) systems and “phase-to-ground” with only intentionally grounded ac systems. Contrary to this, ungrounded distribution systems and now with the proliferation of direct current (dc) circuits, especially with the electric vehicle charging stations, solar power plants and dc distribution systems, the terms “phase-to-phase” and “phase-to-ground” doesn't appear to be adequate or applicable in today's ever-changing world of electrical technology. Secondly is the frequency to reperform absence of voltage testing once the initial has been performed per 120.4(6) seems inadequate as currently stipulated. This paper will provide a basis that article 120 should be updated for greater technical accuracy and clarity which will provide greater safety margin for workers who are exposed to additional electrical hazards found in today's modern equipment.","PeriodicalId":167800,"journal":{"name":"2023 IEEE IAS Electrical Safety Workshop (ESW)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131222230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arc Rating Variability and Repeatability: Why Does Fabric Arc Rating Vary and Which Value is Correct? 电弧等级的可变性和可重复性:织物电弧等级为什么会变化，哪个值是正确的?

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188328

Aasim Atiq, Eduardo Ramirez-Bettoni, B. Shiels, C. Maurice, H. Hoagland

引用次数: 0

Why Can't A Person Use a Proximity Sensor to Verify a Zero Voltage State for Low Voltage Systems? 为什么一个人不能使用接近传感器来验证低压系统的零电压状态?

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/esw49992.2023.10188323

J. Rachford

引用次数: 0

The Impact of Abrasion and Cut Resistance on Rubber Insulating Gloves From Aramid Lined and Unlined Leather Protector Gloves 橡胶绝缘手套耐磨性和切割性对芳纶衬里和无衬里皮革保护手套的影响

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188318

Eduardo Ramirez-Bettoni, Aasim Atiq, Max Hackett, Eric Key

引用次数: 0

Sustainability of an Electric Arc Flash at a Voltage of 240 Vac and 150 Vdc 240伏和150伏电压下电弧闪光的可持续性

2023 IEEE IAS Electrical Safety Workshop (ESW) Pub Date : 2023-03-13 DOI: 10.1109/ESW49992.2023.10188259

K. Gray, S. Robert, Remi Halle

{"title":"Sustainability of an Electric Arc Flash at a Voltage of 240 Vac and 150 Vdc","authors":"K. Gray, S. Robert, Remi Halle","doi":"10.1109/ESW49992.2023.10188259","DOIUrl":"https://doi.org/10.1109/ESW49992.2023.10188259","url":null,"abstract":"The purpose of this paper is to present arc flash laboratory results related to the occurrence of an electric arc flash and the protection offered to workers during arc flash event. The goal was to carry out laboratory tests in order to evaluate the sustainability of an electric arc flash at a single phase voltage of 240 Vac, and the adequacy of the choice of the formula for evaluating the incident energy at 150 Vdc compared to the values obtained in the laboratory. For alternating current, there is a discrepancy according to the applicable standard for the same task. This discrepancy results in the application of different safety measures. Preliminary research tends to support the thesis of a non-sustainability of the electric arc flash at 240 Vac, whereas the use of the formula employed for the direct current would be far too conservative compared to laboratory tests. Following confirmation of the preliminary results, it would be possible to review the protection required during high-risk dc tasks and to rule on the dangerousness of several activities. Doing so could eliminate the need to wear PPE, or reduce the necessary protection associated with risky procedures.","PeriodicalId":167800,"journal":{"name":"2023 IEEE IAS Electrical Safety Workshop (ESW)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133955857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1