Comparison of methods for selecting personal protective equipment for arc flash hazards

Author(s):  
D.R. Doan ◽  
H.L. Floyd ◽  
T.E. Neal
2018 ◽  
Vol 16 (1) ◽  
pp. 29
Author(s):  
Juliansyah Kennedy Sugiharto ◽  
Syamsir Abduh

<p><em>Protection system is a safety system on electrical equipment in case of interference. One of the electrical hazards is the arc flash. According to IEEE 1584-2002 arc flash is a blast of heat, hot gas, and liquid metal caused by short circuit interference on the equipment. There are 3 cases of arc flash that occurred in PT Holcim Indonesia Tbk. Bogor, West Java. Th</em><em>e aim of this </em><em>research is to find out the amount of arc flash energy in accordance with IEEE 1584-2002 standard, to know </em><em>how much </em><em>the energy, and also</em><em> to</em><em> classify Personal Protective Equipment (PPE) category for the workers according to NFPA 70E-2009 standard. This study was applied to the 5th mill finishing area at PT Holcim Indonesia Tbk. Bogor, West Java. The results showed on the area of the Finish Mill 5 the value of the energy incident is 16.92 cal/cm<sup>2</sup> on BUS MD-1, 1.39 cal/cm<sup>2</sup> on BUS RM-1, 1.35 cal/cm<sup>2</sup> on BUS FN-2, 2.17 cal/cm<sup>2</sup> on BUS TR-71, 1.41 cal/cm<sup>2</sup> on BUS TR-72, and 1.34 cal/cm<sup>2</sup> on  BUS TR-73.</em><strong><em> </em></strong></p><p><em>Sistem proteksi merupakan suatu sistem pengaman pada peralatan listrik jika terjadi gangguan. Salah satu bahaya listrik  adalah  arc flash. Menurut IEEE 1584-2002 arc flash merupakan ledakan panas, gas panas, dan logam cair yang diakibatkan oleh gangguan hubung singkat (short circuit) pada peralatan. Terdapat 3 kasus arc flash  yang terjadi di PT Holcim Indonesia Tbk. Bogor, Jawa Barat. Penelitian ini bertujuan untuk mengetahui besar energi arc flash yang sesuai dengan standar IEEE 1584-2002, untuk mengetahui besar energi serta mengklasifikasi kategori Personal Protective Equipment (PPE) bagi pekerja sesuai dengan standar NFPA 70E-2009. Studi ini diterapkan  pada area Finish Mill 5 pada PT Holcim Indonesia Tbk. Bogor, Jawa Barat. Hasil penelitian menunjukkan pada area Finish Mill 5 nilai insiden energinya yaitu  16,92 kal/cm<sup>2</sup> pada BUS MD-1, 1,39 kal/cm<sup>2</sup> pada BUS RM-1, 1,35 kal/cm<sup>2</sup> pada BUS FN-2, 2,17 kal/</em><em>cm<sup>2</sup></em><em> pada BUS TR-71, 1,41 kal/cm<sup>2</sup> pada BUS TR-72, dan 1,34 kal/cm<sup>2</sup> pada BUS TR-73.</em></p>


2020 ◽  
Vol 59 (04) ◽  
pp. 294-299 ◽  
Author(s):  
Lutz S. Freudenberg ◽  
Ulf Dittmer ◽  
Ken Herrmann

Abstract Introduction Preparations of health systems to accommodate large number of severely ill COVID-19 patients in March/April 2020 has a significant impact on nuclear medicine departments. Materials and Methods A web-based questionnaire was designed to differentiate the impact of the pandemic on inpatient and outpatient nuclear medicine operations and on public versus private health systems, respectively. Questions were addressing the following issues: impact on nuclear medicine diagnostics and therapy, use of recommendations, personal protective equipment, and organizational adaptations. The survey was available for 6 days and closed on April 20, 2020. Results 113 complete responses were recorded. Nearly all participants (97 %) report a decline of nuclear medicine diagnostic procedures. The mean reduction in the last three weeks for PET/CT, scintigraphies of bone, myocardium, lung thyroid, sentinel lymph-node are –14.4 %, –47.2 %, –47.5 %, –40.7 %, –58.4 %, and –25.2 % respectively. Furthermore, 76 % of the participants report a reduction in therapies especially for benign thyroid disease (-41.8 %) and radiosynoviorthesis (–53.8 %) while tumor therapies remained mainly stable. 48 % of the participants report a shortage of personal protective equipment. Conclusions Nuclear medicine services are notably reduced 3 weeks after the SARS-CoV-2 pandemic reached Germany, Austria and Switzerland on a large scale. We must be aware that the current crisis will also have a significant economic impact on the healthcare system. As the survey cannot adapt to daily dynamic changes in priorities, it serves as a first snapshot requiring follow-up studies and comparisons with other countries and regions.


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