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Electrical and non-electrical equipment in hazardous areas
Rating: 3.8 out of 5(20 ratings)
369 students

Electrical and non-electrical equipment in hazardous areas

Basic Knowledge: types of protection for electrical equipment
Created byGrzegorz Kulczykowski
Last updated 7/2025
English
English [Auto],

What you'll learn

  • Identification of Explosion-Proof Markings.
  • Selection of Equipment for Hazardous Zones
  • Classification of Explosion Protection Types
  • Evaluation of Intrinsically Safe Systems

Explore related topics

Course content

2 sections • 15 lectures • 57m total length

  • Introduction to the course0:37

    Explore electrical and non-electrical equipment used in hazardous areas with explosion risk, and learn at your own pace.

  • Ex zones and equipment categories5:18

    Explore ex zones and equipment categories in hazardous areas, decipher explosion protection markings, and understand group, category, zone mappings, gas and dust designations, and certification requirements.

  • Short test
  • Types of Ex protection1:32
  • Types of Ex protection
  • Flameproof enclosure2:44
  • Flameproof enclosure
  • Increased safety enclosure2:24
  • Increased safety enclosure test
  • Protection of equipment with intrinsic safety2:03
  • Protection of equipment with intrinsic safety
  • Intrinsically safe system4:14

    Explore intrinsically safe systems, detailing intrinsically safe circuits, associated apparatus, and energy limits, with examples and matching of input/output parameters to ensure protection in hazardous areas.

  • Intrinsically safe system
  • Other types of Ex protection of electrical equipment - part 14:48
  • Other types of Ex protection of electrical equipment
  • Other types of Ex protection of electrical equipment - part 28:19
  • Other types of Ex protection of electrical equipment
  • Protection of equipment "n" and "t"5:46
  • Protection of equipment
  • Types of protection of non-electrical equipment7:19
  • Types of protection of non-electrical equipment
  • Explosion Groups4:00

    Explosion groups classify gases and dusts and determine equipment markings; surface atmospheres use two, underground mines use one, and group two c is most hazardous while two a is least.

  • Explosion Groups
  • Temperature classes2:40
  • Temperature classes
  • EPL - Equipment Protection Level2:55

    Explore the equipment protection level (epl) as a risk-based method for selecting explosion-protected equipment in hazardous areas, using M, G, D applications and a, b, c protection levels.

Requirements

  • Basic knowledge of electrical engineering or automation
  • Understanding of the construction and operation of electrical devices (e.g. motors, relays, power supplies),
  • Familiarity with core concepts such as voltage, current, power, IP protection ratings, and safety zones
  • Ability to read technical documentation
  • Understanding of safe working practices with electrical equipment.

Description

ASE Safety Academy has prepared a dedicated e-learning course titled:

Electrical and Non-Electrical Equipment in Hazardous Areas – Basic Knowledge

This training covers the types of protection used for electrical and mechanical equipment designed for use in explosive atmospheres. We will explain the meaning of each part of the explosion protection marking found on the nameplate of equipment intended for hazardous areas, along with detailed discussions of individual types of protection.

The course curriculum includes, among others, the following topics:

  • Nameplate marking

  • Explosion protection marking (Ex marking)

  • Hazardous area zones and equipment categories

  • Types of protection for electrical equipment (in accordance with IEC 60079)

  • Types of protection for non-electrical equipment (in accordance with ISO 80079)

  • Explosion groups (Gas and Dust Groups)

  • Temperature classes (T-class)

  • Equipment Protection Levels (EPL)

The training concludes with a final exam, which can be retaken multiple times. A certificate is awarded upon passing with a minimum score of 70%.

Upon completing the course, the participant will:

  • Have a solid understanding of the basic types of protection used in explosion-proof equipment;

  • Be able to read and interpret the Ex marking of both electrical and non-electrical equipment used in hazardous areas;

  • Understand, at a basic level, how to select equipment appropriate to a given hazardous area zone.

Who this course is for:

  • Technicians, engineers, installers, technical inspectors, or designers working in industries such as energy, chemical, petrochemical, pharmaceutical, food processing, or any sector involving hazardous (Ex) zones

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