HP&D news and information blog
The Spring issue of NETA World contains an interesting article on testing grounding systems written by regular contributor, Jeff Jowett, a Senior Applications Engineer for Megger. Jowett explains why, “for large and complex grounding systems,” SmartGround® Multimeter (SGM) in the hands of a qualified grounding specialist “affords incontestable results.”
Join OSHA-Authorized General Industry Trainer David Rewitzer, PE, CEM of Hood Patterson & Dewar (HP&D) on Friday, June 28, 2019 for a 1-day Arc Flash Awareness seminar during which participants will learn about the nature of the arc flash problem, OSHA position and enforcement, arc flash labeling, NFPA-70 2018 changes, PPE requirements, and more. The class will take place from 7 a.m. to 3 p.m. (lunch will be provided) on Friday, June 28th in the P&D Seminar Room at 850…
As data center facilities increase in size, complexity, and energy consumption, new data center projects often require dedicated substations. When that is the case, the data center becomes an extension of the substation and is subject to its same inherent risks.
Regardless of who owns the substation, the risks to personnel and property remain the same – damaging or potentially lethal voltages caused by line-to-ground faults and lightning strikes. Read more…
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.
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