Its official, the new edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations was approved by the IEEE-SA Standards Board in September 2018, shifting the paradigm of how arc flash data collection, analysis, and calculations are performed. Read more…
Since the mid-twentieth century, the physical world around us has changed dramatically, so why is a grounding system test method adopted nearly 75 years ago still so widely used today? And what are the inherent problems when using an antiquated approach in the modern world? Read more…
A grounding system’s purpose is to use the earth as a current-carrying conductor to dissipate noise currents and conduct dangerous lightning and power fault currents. Earth is a very good electrical conductor due to its mass and its availability to everyone at all locations throughout the world. This global access to the earth allows grounding systems installed on opposite sides of the world to connect. Read more…
When Facility Operator Bob’s four 1000-ton chillers couldn’t support the facility’s cooling load, he turned to HP&D to figure out why. Our mechanical team thought that maybe the problem was speed; perhaps the water was moving through the system too quickly and needed to be slowed down. But is it really possible that less flow could mean more cooling? Read more to find out…
Join Josh Kelly, CSP, SMS to learn techniques to avoid collisions and traffic violations. Drivers learn safe, responsible and lawful driving behaviors through a self-assessment risk survey, a series of learning activities and discussions, and videos with real-life driver simulations and hazard recognition scenarios. This course will discuss: • Defensive driving techniques • Safe driving behaviors • Georgia traffic laws and violations • Sharing the road with other drivers and motorcyclists • Alcohol/drug…
Electricity is a serious workplace hazard, exposing employees to electric shock, burns, fires, and explosions. According to NFPA-70E, electrical shocks caused nearly 6000 fatalities from 1992 to 2012. Earn 8 CEU credits as David Rewitzer, PE, CEM exposes common myths about electricity while sharing important lessons on preventing electric shock in the workplace. Additional Speakers: Josh Kelly, Hood Patterson & Dewar, Inc. Ken Box, Schneider-Electric Lesley Varga, Quality Standby Services, LLC Mike Bukovitz, Tech4, LLC Registration Information The…
In an article appearing in the April 2018 issue of Consulting-Specifying Engineer magazine, Brandon Sedgwick, PE of HP&D shares his perspective on data center design and commissioning trends in this industry roundtable discussion.
Prior to the 2018 version, NFPA 70E simply cautioned that “greater emphasis may be necessary with respect to de-energizing” equipment with incident energy (IE) exceeding 40 cal/cm2, “when exposed to electrical hazards.” This nebulous direction was applied within the industry by simply labeling everything over 40 cals as “Dangerous – No PPE Exists.” In its new 2018 version, NFPA 70E eliminated this cautionary language. This may lead some to infer that working on energized equipment…
While ZSI may be an effective way to mitigate risks of injury and damage to electrical equipment in the event of a fault, it must be specified, applied, and installed properly – and thoroughly commissioned. All circuit breakers within the protected zone must be equipped with ZSI capability. ZSI installation depends on proper interconnect wiring between circuit breakers, and often, different switchgear lineups…
Senior commissioning agents Brandon Sedgwick, PE and Jeff Womack of HP&D will join other industry thought leaders at the 5th annual Critical Facilities Summit, taking place October 23-25, 2017 in Minneapolis, MN, to share experiences and lessons learned, and provide an in-depth look at leading trends in the design, management, and operation mission critical environments. Join Brandon as he shares Legends of the Fail from a commissioning agent’s logbook, and Jeff as he explains why Some Like it Hot – Commissioning in a Live Site…
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