Be Careful: All About Arc Flashes
Be Careful: All About Arc Flashes

Be Careful: All About Arc Flashes

Posted by Sarah Douglass on Sep. 26, 2013 in Fundamentals

Sometimes, things go wrong. But, as electrical engineers, it’s our job to prevent errors, injuries, or worse – catastrophes. One of the problems that can occur when a piece of equipment is being worked on is arc flash – which is a dangerous release of energy. What Causes Arc Flashes? Arc flashes are caused by […]

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208 or 480 Volt Service?

Posted by Joe Weagraff on Feb. 22, 2011 in Engineering, Fundamentals

Selecting an electrical distribution voltage for a multi­-tenant commercial building is often based on prior lease agreements, previous projects, incomplete information, or intuition. Our research provides guidelines with economic justifications. Each type of service has its advantages. 208V requires less electrical equipment in the Tenant lease space and is therefore less expensive for the Tenant. […]

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2010 Lighting Codes and Standards Update Controls

2010 Lighting Codes and Standards Update Controls

Posted by Mike Ruff on Jul. 01, 2010 in Engineering, Guidance

Like the National Electric Code, ASHRAE 90.1 is updated every three years, and the 2010 edition will be published this year—requiring building energy performance to increase by 30% of the baseline performance of the 2004 edition. What effects may this have on budgets and designs? Area Controls: Each area with floor to ceiling walls is […]

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