basics of switchboards switchgear panelboards garth stevens morrison maierle electrical engineering

The Basics of Switchboards, Switchgear, and Panelboards By Garth Stevens, PE – Article 240 of the National Electrical Code (NEC) covers overcurrent protection and notes that all electrical conductors shall be protected. Overcurrent protective devices (OCPDs) consist of fuses and circuit breakers. Both were patented by Thomas Edison — the circuit breaker in 1879 and the fuse in 1890. Although fuses were the first OCPDs to be widely used in homes and commercial buildings, circuit breakers have also had a rich history of protecting electrical installations and are very common today. This article covers the basics of panelboards, switchboards, and switchgear, which are the threeRead More →

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Arian Bloomfield

Arian Bloomfield named new Buildings Market Group Leader Morrison-Maierle is pleased to announce the promotion of Arian Bloomfield, PE, as its new Buildings Market Group Leader. He will be responsible for the organization and business development of the company’s structural, electrical, and mechanical engineers throughout its 12 offices in Montana, Wyoming, Washington, and Arizona. Bloomfield, who also holds certifications in LEED (Leadership in Energy & Environmental Design) accredited Professional (LEED AP BD+C) and GG (Green Globes) will lead a staff of 35 across the firm from his home office in Missoula, Montana. He came to Morrison-Maierle 10 years ago as a recent graduate of MontanaRead More →

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Carroll College Hunthausen Activity Center Caroll College’s Hunthausen Activity Center (HAC) is a campus-based PE center for non-varsity athletic use in Helena, Montana. The HAC is a Morrison-Maierle  “design-build” project that contains of a 24,427-square-foot facility containing a gym, racquetball court, cardio and weights areas, two multipurpose rooms, grand hall, lounge areas, office area, climbing tower, and bouldering wall. This building replaces a facility that was built in 1969. At that time, the college had 183 varsity athletes. Today Carroll has 380 varsity athletes so there was no room for students to exercise. This new facility helps the college meets the needs of their ever-growingRead More →

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Jabs Hall team achieves LEED Gold certification Montana State University’s Jabs Hall, home of the Jake Jabs College of Business and Entrepreneurship, was awarded  LEED Gold certification from the U.S. Green Building Council for energy-efficient and sustainable design and construction Thursday, April 21, at the building. The Jake Jabs College of Business and Entrepreneurship is proud to have Jabs Hall recognized as a LEED Gold building. The LEED (Leadership in Energy and Environmental Design) certification program recognizes best-in-class building strategies and practices, and it is widely recognized as the foremost program for the design, construction and operation of “green” buildings. To receive LEED certification, buildingRead More →

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