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Arc Flash Awareness Training – December 8 in Atlanta, GA

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Join OSHA-Authorized General Industry Trainer David Rewitzer, PE, CEM of Hood Patterson & Dewar (HP&D) on Friday, December 8, 2017 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 2015 changes, PPE requirements, and more. The class will take place from 7 a.m. to 3 p.m. (lunch will be provided) on Friday, December 8 in the P&D Seminar Room at 850 Center Way, Norcross,…

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A Cookie Cutter Approach Can Cost You Dough

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How often is your standardized approach resulting in an over-designed ground grid? Stop wasting your dough by blindly erring on the side of caution simply because you don’t know what lies beneath. While standardizing a ground grid design seems like it would save time and money, this approach fails to consider a site’s soil composition and resistivity. Soil resistivity is affected by variables such as layer composition, moisture, molecular structure, salt content, other chemicals, etc. Making assumptions based merely on a site’s location, visible soil observations, or soil borings is not enough to determine its apparent resistivity. All variables, especially those affecting life-safety, must be incorporated to allow for site-specific considerations…

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Discontinuation of GE Multilin™ SR Relays

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GE Grid Solutions is discontinuing several relays from its Multilin SR family of products. These microprocessor-based multi-functional relays were widely used around the turn of the century for industrial protection and management applications in industrial environments, data centers, electrical service entrances, distributed generation (DG) interconnects, motors, transformers, and generators. GE announced, “manufacturing of SR750/760, SR469, SR745 and SR 489 will be discontinued on 1st of January 2020 due to the unavailability of critical components used within the product.” Options for customers with affected relays…

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Hilton Mills to Teach Grounding Testing Techniques & Troubleshooting at CEATI

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On November 15 & 16 of this year, CEATI will host its 8th Annual Grounding and Lightning Conference in Arlington, VA. This open forum is supported by more than 35 participating utilities and facilitates information exchange and networking. The conference brings together leading subject matter experts from around the world, including HP&D’s own Hilton Mills. Hilton will be presenting Grounding Testing Techniques & Troubleshooting, during which he will discuss the fall of potential (FoP) and computer-based test instrument…

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