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Articles by Denney Howard
Video: Arc flash mitigation
Learning objectives Understand major codes and standards related to arc flash mitigation design, such as NFPA 70E and IEEE 1584.1, plus other industry practices. Learn design techniques, including pros and cons, that will reduce arc flash incident energy. Use electrical power system software to simulate different mitigation approaches and system operations. Know that mitigating arc flash through design is paramount to electrical safety.
How to mitigate arc flash hazards in medium-voltage electrical systems
Mitigating arc flash hazards in medium-voltage systems could be performed in synergy to achieve optimal system reliability and safety Protective relays are the brain and intelligence behind a medium-voltage protective device. They are critical infrastructure for proper medium-voltage system operation and protection and increase system reliability.
Four areas that affect electrical safety in electrical, power systems
Learning Objectives Understand the key issues associated with arc flash and electrical safety in general. Appreciate the importance of electrical room design and safe working space. Learn the basics of safe lighting design for both maintenance and egress. Electrical safety insights Electrical safety requires several areas of expertise: System design, arc flash mitigation, room design, testing and commissioning and egress lighting.
Case study: Laboratory combines lighting and life safety lighting
SmithGroup was tasked with designing the lighting for a laboratory renovation for a major university system located in the Midwest. Because it was a laboratory, target illuminance within the laboratory space was designed around a 50 footcandle (fc) average at the work plane. Rather than designing separate egress lighting, it was more cost-effective to connect select light fixtures to a life safety power source than to provide separate dedicated emergency lighting fixtures.
How to better protect against electrical hazards in the workplace | Consulting - Specifying Engineer
Understanding arc flash safety can save lives. Learning Objectives Know how an arc flash assessment is conducted. Understand the lockout/tagout procedure and how it is used. Identify when to use the NFPA 70E methods for arc flash personal protective equipment. Arc flash insights To protect workers from arc flash hazards, commercial facilities should conduct safety assessments of their electrical systems.
Case study: Promoting electrical safety in the Texas Department of Transportation | Consulting - Specifying Engineer
Arc flash insights: Regular arc flash assessments are crucial for ensuring electrical safety. By examining and modeling each facility’s electrical system, potential risks can be identified and necessary safety measures can be implemented. Personal protective equipment (PPE) plays a vital role in mitigating arc flash hazards. The Texas Department of Transportation (TxDOT) provides a strong example of a regularly planned, large-scale effort to ensure safety.
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