Understanding “Arc Flash” Simply put‚ an arc flash is a phenomenon where a flashover of electric current leaves its intended path and travels through the air from one conductor to another‚ or to ground. The results are often violent and when a human is in close proximity to the arc flash‚ serious injury and even death can occur. Arc flash can be caused by many things including: Dust Dropping tools Accidental touching Condensation Material failure Corrosion Faulty
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Abstract— Arc flash (AF) protection is very important for all power and process industries to maintain the safety of equipment and personnel at the workplace. This describes causes and characteristics of AF faults and gives an overview of existing AF protection methods. This proposes design and development of a microcontroller based AF protection system which utilizes physical characteristics‚ viz. unique signature of the light‚ current and pressurized sound signals during AF within tap changer/switchgear
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Journal of Knowledge Management Practice‚ Vol. 12‚ No. 3‚ September 2011 A Study Of The Predictive Effect Of Pre-Service Teacher Personal Knowledge Management Competency On Their Instructional Design Skills Eric Cheng‚ The Hong Kong Institute of Education‚ Tai Po‚ Hong Kong ABSTRACT: This paper aims to examine the relationship between the personal knowledge management (PKM) competency of pre-service teachers and their instructional design skills. Supporting the sustainable development
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CASE 7.1: 123 Flash Chat 1. Which prospecting methods do you think Eric should use? Eric‚ has just started working in Flash Chat‚ a company which provides software programs for other companies that allow to employees communicate and exchange ideas on improvements with managers‚ anonymously. This program is totally new as it’s the first time that will be sold in the marketplace. Consequently‚ Eric should use the Internet in order to generate prospects because is known to be the fastest-growing
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most useful tools that your digital camera has is its built in flash. For a lot of people‚ though‚ the only time that they use the flash is when the scene is too dark. Yet‚ there are many more uses for your flash than you may suspect. The purpose behind this tutorial is to explain how to use that built in flash to your advantage in certain situations and when to turn it off. How to Turn On/Off Your Flash For most cameras‚ the flash button is designated with a lightning bolt. A lot of compact
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Q1. Based on the data in case Exhibit I‚ what inferences can be drawn from the survey responses regarding the herbal shampoo category? As per Exhibit 1 the following inferences can be drawn from the survey regarding herbal shampoo category: * The respondents felt that herbal shampoos need to be used in large quantity for lather and that the protein content is important for making hair strong‚ shiny and soft. * Respondents chose their shampoo based on their hair type and texture. * They feel that
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Aloha products Aloha Products is a United States-based coffee-processor company that has been providing non-specialty and low-priced coffee for over a hundred years. It purchases the raw materials or what buyers and sellers refer to as “green coffee” from brokers and trade firms then processes the coffee and sells the final product to customers. Large companies such as Nestle and P&G directly import the unprocessed or green coffee beans from coffee plantations in tropical countries such as Brazil
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Journal: Find your FIRM (20 points) FIRM Panel 3710780800J There was nothing on the FEMA site‚ but I just got a flash flood warning on my phone. We have had rain almost everyday for a month‚ and the red clay dirt does not absorb the water quickly and the water table is already high. As you can see our flood risks come from seasonal rains. Journal: Porous Rocks (20 points) How did the two glasses compare in their final water level? The water level in the glass with the pumice stone decreased
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The editors of “Flash Fiction” asked themselves the question‚ “How short can a story be and still truly be a story?” (11). With this in mind‚ they settled on a maximum word count of 750‚ with a minimum of 250. They debated keeping it as “one story to a page‚ just a little book of little stories‚” but soon realized that‚ without the turn of a page during a story‚ the reader is easily bored (13). Instead‚ they allowed the stories to begin and end naturally in the book’s layout. “Pumpkins” is a
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Flash Foresight Assignment Chapter One: Start With Certainty – Use Hard Trends to see what’s coming. It’s so easy to focus on what we can’t do; what we can’t resolve‚ where we don’t see eye-to-eye‚ what we don’t know. With this focus‚ coming to any kind of common understanding is just about impossible. Where should we focus? We should focus because it allows us to see what we agree upon and what we can and do desire. What is Cyclic Change? Cyclic change is change that does not cycle back
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