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Class I Applications
Class I Applications

This self-paced online course covers how to select wiring methods and equipment for use in Class I, Division 1 and 2 areas. These are areas that are classified due to the presence of flammable liquids, gases, or vapors.



Students will learn to:



  • Explain the difference between areas classified as Class I, Division 1 and Division 2

  • List and explain a variety of Division 1 wiring methods

  • List and explain a variety of Division 2 wiring methods

  • Explain the difference between flexible wiring and flexible cord

  • Explain when flexible cord and flexible conduit are permitted

  • Name two types of limited energy circuits

  • Explain the difference between explosionproof equipment and intrinsic energy methods

  • Define key terms, including explosionproof, nonincendive and intrinsically safe

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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers how to select wiring methods and equipment for use in Class I, Division 1 and 2 areas.

Class II Wiring Methods
Class II Wiring Methods

This self-paced online course covers the particular problems of Class II areas, such as areas with an ignitable quantity of combustible dust. Wiring and protection methods used in Class II areas must be chosen to keep the electrical equipment and wiring from providing an ignition source for the combustible dust.



Students will learn to:



  • Describe the primary protection method for Class II areas

  • List and describe wiring methods permitted in Class II, Division 1 areas

  • List and describe flexible wiring methods that are permitted

  • Describe how conduit and cable seals are used in Class II, compared to Class I

  • List and explain two methods of creating dust-ignitionproof enclosures

  • Understand how wiring is handled when Class I and Class II hazards are present at the same time and in the same area

  • Understand how the definition of "limited energy circuit"? varies in different contexts

  • Understand how the characteristics and hazards of metal dusts compare to other types of dust


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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers the particular problems of Class II areas, such as areas with an ignitable quantity of combustible dust.

Class III Areas
Class III Areas

This self-paced online course covers wiring methods and equipment that can be used in Class III areas. These areas are classified due to the presence of fibers or flyings.



Students will learn to:



  • Understand the hazards and concerns specific combustible fibers and flyings

  • Explain why stringent housekeeping requirements are important in Class III areas

  • Understand why surface temperature is a concern in Class III areas

  • Understand how the situation is handled when Class II and Class III hazards are present at the same time and in the same area

  • List and describe wiring methods that are permitted in Class III areas

  • List the two essential characteristics for equipment to be permitted in Class III areas

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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers the wiring methods and equipment for use in areas classified due to fibers or flyings.

Classification Basics
Classification Basics

This self-paced online course covers the basics of classification, including how to recognize areas that may be classified, the key issues and terminology used to classify areas, how to reduce the extent of classified areas, and reduce the quantity of special equipment needed.



Students will learn to:



  • Understand what makes an area classified

  • List and describe how the hazards of electrical equipment can be reduced in classified areas

  • Understand how circuits may be designed to reduce hazards in classified areas

  • Understand how the environment may be modified to reduce hazards

  • List and define key terms, including auto ignition temperature, flash point, ignitable mixture, flammable range, combustible material, flammable liquid, combustible liquid, combustible dust

  • Explain classification terminology, including the distinctions between Classes I, II, and III; the difference between Divisions 1 and 2; and Zones 0, 1, and 2

  • Be familiar with the typical classification of some common occupancies

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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers how to recognize areas that may be classified, the key issues and the terminology of classified areas.

Identifying Materials & Equipment
Identifying Materials & Equipment

This self-paced online course covers materials that can result in a classified area and equipment that is suitable for those areas. The degree of hazard and the types of electrical equipment needed to reduce the hazard are dependent on the properties of the specific flammable, combustible, or ignitable materials.



Students will learn to:



  • Determine the materials that can result in an area being classified

  • Select equipment that is suitable for those areas

  • Understand the methods and reasons for distinguishing between different types of materials

  • Understand the reasons for grouping materials based on their characteristics

  • Know the methods of identifying appropriate electrical equipment for a given classified area based on the flammable or combustible materials that are present


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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers the materials in a classified area and how to select equipment that is suitable for those areas.

Protection Method Concepts
Protection Method Concepts

This self-paced online course covers the similarities and differences among protection methods used for different types of classified areas and how to properly select or verify the proper use of protection methods for given areas. Protection methods are ways to keep the electrical system and equipment from providing an ignition source to the ignitable materials and mixtures that may be present.



Students will learn to:



  • List and describe requirements for explosionproof enclosures

  • List and explain types of dust-ignitionproof equipment

  • List and explain other methods of isolating electrical ignition sources in a classified area

  • List and describe grounding methods for classified areas

  • Understand the three elements of a lightning protection system


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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers the similarities and differences among protection methods used for different types of classified areas.

Sealing in Class I Areas
Sealing in Class I Areas

This self-paced online course covers the purpose and application of cable and conduit seals in Class I areas. Sealing requirements differ for conduits and cables and differ somewhat for different types of cables.



Students will learn to:



  • Explain the four general purposes of conduit and cable seals serve in Class I areas

  • Understand how pressure piling occurs and how to reduce it

  • List and explain three areas where conduit seals must be located

  • Understand the most likely place for an explosion to be initiated in the electrical system

  • List and explain installation requirements that apply to all conduit seals

  • Explain how and why cables and conduits behave differently in the event of fire or explosion

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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers the purpose and application of cable and conduit seals in Class I areas.

Zone Classification
Zone Classification

This self-paced online course covers how to employ correct protection methods where Class I areas have been classified by Zone. Zone classification offers an alternative to classifying areas by division using 3 zones rather than 2 divisions, and also offers some alternative protection methods.



Students will learn to:



  • Understand which Zone and Division areas are equivalent to each other

  • Understand when and why NEC standards allow Zone-classified and Division-classified areas to be adjacent

  • List and explain wiring methods permitted in various Zone-classified areas and how they compare to methods permitted in Division-classified areas

  • Explain how and why protection methods permitted in Zone-classified areas are different compared to Division-classified areas

  • Distinguish between flameproof and explosionproof equipment and explain where each is suitable

  • Explain how requirements for cable and conduit seals are different in Zone-classified areas

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0.10 CEUCertificate$ 39
Detailed Description

This self-paced online course covers how to employ correct protection methods where Class I areas have been classified by Zone.