John Yoon, McGuire Engineers, Chicago

John Yoon

John Yoon, PE, LEED AP ID+C; is lead electrical engineer at McGuire Engineers, Chicago. He is a member of the Consulting-Specifying Engineer editorial advisory board.

Articles by John Yoon

Generation September 14, 2022

Five more reasons generators fail when you need them the most

Here are five additional reasons why generators fail

By John Yoon
Electrical June 20, 2022

Electrical distribution systems: Fuses versus circuit breakers

How does an electrical engineer decide between fuses and circuit breakers? The answer: It depends

By John Yoon
Generation May 31, 2022

Five reasons emergency generators fail when you need them

Here are five common reasons why generators fail

By John Yoon
Codes & Standards: Electrical, Power January 28, 2022

How to specify metal-clad cable and busways

Wiring methods like metal-clad cable and busways, using premanufactured components, can offer significant labor savings, but their limitations should be understood before specifying them

By John Yoon
Courtesy: McGuire Engineers
Codes & Standards: Electrical, Power October 26, 2021

Commercial wiring methods: Back to basics

A working understanding of commonly used wiring methods is critical for electrical engineers who design power systems for buildings

By John Yoon
Figure 6: Installation of generators to support mission critical and health care facilities is common. However, their use is expanding to address concerns regarding the reliability of electrical utility sources. The 2020 National Electrical Code now requires that all stationary generators be listed in accordance with the applicable standard, UL 2200. Courtesy: McGuire Engineers
Codes and Standards December 21, 2020

NEC changes enhance resiliency

The 2020 edition of the National Electrical Code added changes to improve resiliency electrical system design

By John Yoon
Lab-planning details that matter April 27, 2020

Emerging wireless lighting control standards

Emerging wireless technology is disrupting the lighting controls industry

By John Yoon
Codes & Standards: Electrical, Power November 15, 2019

NFPA 110-2019 concepts and changes

Understand NFPA 110 and its relation to emergency power supplies

By John Yoon
Codes & Standards: Fire, Life Safety March 29, 2019

Visual perception and its impact on emergency illumination design

Emergency lighting provides illumination and wayfinding to allow building occupants to quickly and safely evacuate.

By John Yoon
Codes & Standards: Fire, Life Safety March 28, 2019

World Trade Center building emergency lighting disasters

While overshadowed by the 9/11 attack, an earlier WTC terrorist bombing on Feb. 26, 1993, was an incredibly significant event in its own right.

By John Yoon
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