Day: August 1, 2016

IEEE 1584 – Required Certification for Products/Services?

I have heard a rumour that IEEE1584 are up to their old tricks again. Back in 2012 it was to introduce royalties for use of the equations. This time I […]

New to Arc Flash, Short Circuit and Coordination studies

Hi. I currently work as an Engineer in the energy management field. I would like to branch off in to doing Arc Flash, Short Circuit and Coordination Studies. How would […]

ArcPro and Windows 10

Has anyone found a way to run ArcPro on Windows 10? I cannot even install it on Windows 10. Not sure about any 3rd party programs that could emulate a […]

X factor for Disconnect switches

Hello What is the optimal X factor for disconnect switches. I assumed it is 2 because that’s the default value that ETAP gives you. Am I correct for assuming this? […]

PE/Certification (moved from IEEE 1584 Certification thread)

There is a long and well documented fight between the NSPE as the “political arm” of professional engineering and various industry groups which have all but made “industrial exemption” here […]

Arc Flash Shields in disconnect boxes

I repair UL listed appliances that are sometimes directly wired into a fused or unfused disconnect box if they exceed 50A. Sometimes I need to test the voltage on both […]

Existing Overdutied Equipment

This week’s question is a continuation of last week’s topic regarding overcurrent devices that do not have an adequate interrupting rating. When the calculated short circuit current is greater than […]

PPE Selection when Interacting with non-labeled Equipment

Hi All, To put my question in context, I train Industrial Maintenance and Construction Electricians at a Community College. Some of the students are new to the field and are […]

Fiber Optic Arc Flash Detection Modeling

I will start by stating that I am not 100% familiar with these types of systems [Fiber Optic Light Detecting]. In recent MV switchgear submittal the manufacturer [I assume at […]