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Selective Coordination for Critical Systems per the 2014 NEC

Selective coordination has been required for multiple elevators, supplied from a single feeder, since the 1993 National Electrical Code (NEC®). This requirement was based on a...

Critical Operations Data Systems

In a world that almost surely would cease to function from day to day without the ability to access basic data, what happens when...

Article 708, Critical Operations Power Systems – Some Existing Technologies to...

NEC-2008 has a new Article 708, Critical Operations Power Systems (COPS). COPS are defined as "power systems for facilities or parts of facilities that...
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