Ed Larsen

Ed Larsen

Ed is an Industry Standards Manager for Schneider Electric USA and is based in Cedar Rapids, Iowa. He is responsible for overcurrent protective device and motor control product standards and holds BS and MS degrees from the Milwaukee School of Engineering. He has been an employee of Square D/Schneider Electric for 40 years as an application engineer, marketing manager, product manager and engineering manager for control products and circuit breakers. Ed has authored technical articles and papers and frequently speaks on various product application and code compliance topics. He is a member of numerous industry technical committees and NFPA National Electrical Code Making Panels 2 and 11.

Frequently Asked Questions about Selective Coordination

This is the last in a series of posts discussing the National Electrical Code® (NEC®) requirements for selective coordination. In this post I will address some frequently asked questions and… Read more »

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Selective Coordination Design Guidelines with Molded-Case Circuit Breakers

This is the fifth in a continuing series of posts focused on a range of design and specification issues related to the National Electrical Code® (NEC®) requirements for selective coordination…. Read more »

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Selective Coordination with Molded Case Circuit Breakers

This is the fourth post in a series on achieving selective coordination – previous posts have provided an introduction to the topic, looked at its implementation in healthcare environments and… Read more »

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Selective Coordination and Emergency Power Supply Systems

Welcome to the third in a series of posts focused on National Electrical Code® (NEC®) requirements for selective coordination. In my previous post, I covered some of the specifics important… Read more »

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Implementing Selective Coordination for Health Care Facilities

My previous post, “Selective Coordination and the NEC: Defining Terms and Understanding Updates,” gave a general overview of selective coordination requirement changes in the 2014 edition of the National Electrical… Read more »

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Selective Coordination and the NEC: Defining Terms and Understanding Updates

With the National Electrical Code® (NEC®) putting greater emphasis on both power continuity and selective coordination, today’s engineers need to know how to meet both these requirements in their electrical… Read more »

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Meeting the Spirit – And Not Just the Letter – of Arc Flash Energy Reduction Requirements

Meeting the letter of the revised Section 240.87 in the 2014 National Electrical Code (NEC) is relatively easy – specifying and installing one of the outlined solutions will meet its… Read more »

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NEC Section 240.87 – Acceptable Methods for Arc Energy Reduction

With the introduction of the updated 2014 NEC Section 240.87, electrical designers now must incorporate some means of reducing the clearing time of any potential arc fault in installations involving… Read more »

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NEC 2014 – What’s Changed in Section 240.87 Regarding Arc Energy Reduction

The need to protect workers from the hazards of arc flash has been understood for decades – the National Fire Protection Association’s Standard NFPA 70E first addressed the issue in… Read more »

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