Area Electrical Classification for Pilot Plants and Laboratories

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Course Overview

Engineers and scientists who are involved in classifying hazardous locations and specifying safe equipment installations with pilot plants, labs and research facilities will learn the essentials and critically examine proven procedures for safe operation. During this course, you will:

  • Review the basics of area electrical classification, applicable codes, and learn why the codes don’t address the issues, equipment, and scale of research, labs, and pilot plants
  • Define and determine “adequate” ventilation
  • Address heaters, purging, and heat tracing
  • Examine how classification is affected by combustible gas detection
  • Explore the classifications issues associated with hoods, benches, and ventilated enclosures.

Who Should Attend?

Who should attend?

This course is designed for engineers, scientists, electricians, electrical technicians, contractors, and supervisors who need to interpret appropriate industry standards and implement procedures for area electrical classification and equipment installations in pilot plants, laboratories and research areas. The course will be valuable to those in food, chemical, petrochemical, biofuels, nutraceutical, mineral, pharmaceutical, government and academic operations. 

Course Outline

Introduction and Basic Principles Refresher

  • Flash point
  • Autoignition temperature
  • Explosive limits

Area Electrical Classification Refresher

  • Class I areas only

Common Codes and Standards

  • How they address research concerns

Laboratory Classification and Issues

  • Hoods
  • Benches
  • Laboratory pilot plants

Adequate Ventilation

  • Definition
  • Issues

Approvals for Equipment

  • Use of IEC zone equipment

Heaters and Heat Tracing in Electrical Classified Areas

  • Purging
  • Limiting surface temperatures
  • Purchased units
  • Heat tracing

Process Seals

Flexible Connections

Combustible Gas Detection

  • Affect upon area electrical classification



Elaine Andrysick

Elaine M. Andrysick, joined Engineering Professional Development, University of Wisconsin-Madison, as a continuing engineering education specialist in 1988.  She is responsible for the development and delivery of high-value continuing engineering education short courses for practicing professionals in the areas of chemical and process engineering and laser material processing.  Also, she manages the University’s Laser Welding Certificate program.

Richard Palluzi

Richard P. Palluzi, PE, CSP, of Richard P. Palluzi LLC is a consultant to the pilot plant and laboratory research community on safety, design, and research project management. He retired as a Distinguished Engineering Associate after almost 40 years at ExxonMobil Research and Engineering, where he was involved in the design, construction, and support of pilot plants and laboratories for ExxonMobil’s research site in Clinton, New Jersey, as well as affiliates worldwide. Rich is the author of two books, and numerous articles and presentations as well as a past chair of the American Institute of Chemical Engineers Pilot Plant Committee, ExxonMobil’s Pilot Plant and Laboratory Safety Standards Committee, and ExxonMobil’s Safe Operations Team for their Clinton facility. Rich is on the National Fire Protection Association (NFPA) NFPA-45 Fire Protection for Laboratories Using Chemicals and NFPA-55 Industrial and Medical Gasses committees. He has BE and ME degrees in chemical engineering from Stevens Institute of Technology. 

Upcoming dates (0)

Take this course when it’s offered next!

Program Director

Elaine Andrysick

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