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This course accepted in:

 

• Alabama (P.E.)

• Alaska (P.E.)

• Arkansas (P.E.)

• Florida (P.E.) (AOP)

• Georgia (P.E.)

• Idaho (P.E.)

• Illinois (P.E.)

• Indiana (P.E.)

• Iowa (P.E.)

• Kansas (P.E.)

• Kentucky (P.E.)

• Louisiana (P.E.)

• Maine (P.E.)

• Maryland (P.E. Category A)

• Minnesota (P.E.)

• Mississippi (P.E.)

• Missouri (P.E.)

• Montana (P.E.)

• Nebraska (P.E.)

• Nevada (P.E.)

• New Hampshire (P.E.)

• New Jersey (P.E.)

• New Mexico (P.E.)

• New York (P.E.)

• North Carolina (P.E.)

• North Dakota (P.E.)

• Ohio (P.E.)

• Oklahoma (P.E.)

• Oregon (P.E.)

• Pennsylvania (P.E.)

• South Carolina (P.E.)

• South Dakota (P.E.)

• Tennessee (P.E.)

• Texas (P.E.)

• Utah (P.E.)

• Virginia (P.E.)

• West Virginia (P.E.)

• Wisconsin (P.E.)

• Wyoming (P.E.)

 

 

 

Abbreviations:

AOP-Areas of Practice

LAR-Laws & Rules

P.E.-Professional Engineers

 

Explore all PDH CEU CPC CPD and Webinars for Engineers

Introduction to Area Classification

Course No. E-1004

Credit: 1 PDH

Course Fee: $28.95 Purchase course

Subject Matter Expert: Rebecca Johnson, P.E.

 

Overview

Area classification is based on the properties of the flammable substances that may be present in an area and the likelihood that the flammable substance will be present. Area classification is used to determine the type of equipment that can safely be located in an area. Since facilities in a wide variety of industries involve the use of flammable substances, it is necessary for industry to have rules to guide engineers in the design and selection of equipment necessary to safely operate the facilities.

Article 500 of the National Electrical Code (NEC) defines area classification based on Classes, Divisions and Groups. The Class designates in broad terms the type of flammable substance that may be present in an area (i.e. flammable gas vs. combustible dust). The Division designates the likelihood of the flammable substance being present. Finally, the Group further defines the Class by designating the specific substance (or range of ignition properties) that may be present (i.e. acetylene vs. propane). Article 505 of the NEC is similar to Article 500, but it uses Zones instead of Divisions to designate the likelihood that a flammable substance may be present. Additionally, Article 505 uses different character designations (Roman numerals combined with alphabetic letters) for Groups relative to Article 500, which uses Alphabetic letters.

This course covers the basics of NEC 500 and NEC 505. The student will learn the different types of Class, Division, Zone and Group designations used by the code. This course is relevant to electrical engineers looking for a refresher course on area classification, as well engineers in other disciplines who are involved in the design, specification, selection or location of commercial or industrial equipment, including mechanical equipment, electrical equipment and controls and instrumentation.

The student must take a multiple-choice quiz consisting of ten questions at the end of this course to obtain PDH credits.

 

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • The purpose and need for area classification.
  • The fire triangle - three elements required for a fire to start and sustain itself
  • Class, Division and Group designations used in NEC 500
  • Class, Zone and Group designations used in NEC 505
  • Industry examples of area classification designations
  • Equipment protection techniques associated with area classifications
  • Equipment marking for area classification

 

Course

Click on the following link to the PDF document to review the course material before taking the quiz for credit.

"Introduction to Electrical Area Classification"

 

Having trouble downloading the PDF file?

If clicking the link does not bring you to the PDF file, then right-click the link. Click "Save Target As" and save on your desktop. To view the file, double-click the icon on your desktop and return to this page to take the quiz. You may want to bookmark this page for your convenience. If you have questions, Live Support Chat can help.

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To receive PDH credit for this course, you must pass a multiple-choice quiz. Click the button below to Purchase Course and Take Quiz. To take the quiz, your computer must be set to accept cookies. See how to check your cookie settings.

 

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