Learning Outcomes

Circuit Breakers - Introduction, Types and Parts

Circuit Breakers - Specifications and Size Calculation

Circuit Breakers - Arc Formation

Lesson Summary

In this short course, you will be introduced to circuit breakers. You will learn how they work during abnormal conditions, and how to select the right type of this automatically operated electrical switch. We will also cover arc formation in circuit breakers in the last part of this course.

Course Assessment

Learn the working principles of different types of circuit breakers and their specifications in this free online course.

Low Voltage Circuit Breaker Designing

Master the basics of various circuit breakers, the working principles of these vital electrical switches as well as their different parts at your own pace in this free online course. You will find out about different specifications and be taught how to calculate the size of an appropriate breaker. Enroll today to find out more about circuit breakers and how they are used in domestic, commercial and industry settings.

In this free online course, you will learn about the working principles of electrical switches and protective devices known as circuit breakers. We will explain the fundamentals of a circuit breaker and teach you about the different types and their specifications. We will also show you how to select an appropriate size for the connected load. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. It will act like a normal switch under normal conditions that can be used to trip the circuit for the purpose of maintenance. The basic function of all circuit breakers is to interrupt heavy current flow after a fault is detected in an electrical circuit. Unlike a fuse, which operates once and then must be replaced, these electrical switches can be reset, either manually or automatically, to resume normal operation.
This short course will not only give you an idea of how to select an appropriate circuit breaker based on the type of electrical load but you will also come to know the working principles of a miniature circuit breaker in detail. You will familiarize yourself with the size calculation of the circuit breaker as per the US National Electrical Codes’ (NEC) rule. On finishing this course, you will know the definition of a circuit breaker and the difference between short circuit and overload current. After explaining the technical specifications, the material moves to arc extinction, where you will learn more about high and low resistance interruption. As you will see, a suitable energy dissipating device must be incorporated in the design, as the arc can lead to the danger of fire or explosion. You will find out what an arc consists of, what methods are used in the arc extinction process, what forms of protection may be employed to reduce the rate of erosion of contacts, and how the blast principle - where we use air, oil, gas or water - works.
By the end, you will be able to understand and design a circuit breaker for any low voltage electrical system projects and know the correct way to make a selection. You will also be amazed to find out how much information you can receive in a bite-sized course like this one! To reinforce the information obtained in these topics, you will have the chance to test your knowledge by going through several questions before the final assessment.

[2025] 470+ Hours of Free LinkedIn Learning Courses with Free Certification

7 Best TikTok Marketing Courses for 2025

The Business of Online Education: A Deep Dive Into Coursera’s Financials

9 Best GIS Courses for 2025: Navigating Spatial Data

How Online Course Platforms Track Learners in 2022

Coursera, Udemy, and the $10M+ Video Privacy Battle: Class Action Update

SEO Content Strategy Demystified: Coursera, MasterClass, and edX

7 Best Autodesk Maya Courses for 2025: Exploring 3D Animation

262K Courses, 833M Enrollments: Breaking Down Udemy’s Massive Catalog

Duolingo Q1 2026: Toward 100M DAUs with Record Engagement and Slower Paid Growth

Udemy Announces Layoffs Without Saying ‘Layoffs’

7 Best Reverse Engineering Courses for 2025

Udacity’s 2021: Year in Review

10,000+ Free Courses from Tech Giants: Learn from Google, Microsoft, Amazon, and More

8 Best Geology Courses for 2025

Inside the Coursera-Udemy Deal: Three Bids, Two Years and a Rival Suitor

Aims & Objectives of ISO/IEC 17025:2017

Accrediting to ISO/IEC 17025:2017

Main Sections of ISO/IEC 17025:2017

This module presents the fundamental aspects of ISO/IEC 17025:2017 along with its aims and objectives. The module also explains different forms of standardized verbs used throughout the standard. Moreover, you will also learn the benefits of accrediting to ISO/IEC 17025. Lastly, an overview of the section's standard is also given.

General and Structural Guidelines for Laboratories

Resource Requirements for Testing Laboratories

Contracts, Validation, Sampling & Handling

Technical Records, Uncertainty, Results Validity, & Reports

In this module, you will encounter the essential requirements given in clauses 4, 5, 6, and 7 of ISO/IEC 17025;2017. However, the explanation of Clause 7 is provided till sub-clause - 7.8. Through this module, you will learn about the general, structural, resource, and process requirements of ISO/IEC 17025:2017.

Information Management, Complaints & Nonconformities (NCs)

Management System Requirements

Taking Corrective Actions

In this module, you will see discussions on ISO/IEC 17025:2017 beginning from sub clause 7.9 that puts forward the complaint requirements put forth by the standard. Furthermore, it presents the standard's requirements regarding management systems. Moreover, it also contains necessary measures to be taken for corrective actions.

ISO/IEC 17025:2017 - Laboratory Management System- Course Assessment

Learn about laboratory management systems laid out by the ISO 17025 international standard in this free online course.

ISO/IEC 17025:2017 - Laboratory Management Systems

This short course is designed for individuals and laboratories looking forward to their standardisation. We explain management standards defined by the ‘ISO/IEC 17025 general requirements for testing and calibration laboratories competence’ devised by ISO. This comprehensive course explains all the basic and essential requirements of the standard. It also provides a simplified clause-by-clause explanation of its four main sections.

Fundamentals of Pest Control

Pest Identification and Assessment

Non-Chemical Pest Control Methods

Chemical Pest Control Methods

This module will teach you the fundamentals of pest control, types of pests and their impact, pest life cycles and behavior, factors influencing pest infestations, pest identification and assessment, non-chemical pest control methods, genetic control and sterile insect, chemical pest control methods, and integrated pest management (IPM) approach.

Monitoring and Prevention

Sustainable Pest Management

Urban and Structural Pest Control

Topics you will learn in this module include but are not limited to pest monitoring techniques, preventive measures and exclusion strategies, ecological impact of pesticides, selective pesticide use and resistance management, organic and biodynamic pest management, pest management in residential areas, and commercial and industrial pest control.

Pest Control and Management - Assessment

This free online course teaches you how to use chemical and non-chemical pest control techniques to manage infestations.

Pest Control and Management

Pests make environments unhygienic and are a major cause of diseases, some of which may be lethal and difficult or expensive to cure. Effective pest management and control are necessary to keep a living and working environment free from health hazards. This course provides the knowledge and skills required to establish and maintain a successful pest control management programme and describes various pests, their life cycles and their behaviour.

Foundations of Construction Safety Management

Safety Management for Hazardous Environments

High-risk Site Activities and Demolition Safety

This module covers risk identification and mitigation in construction work and how to evaluate and manage risk in compliance with CDM regulations. You'll also learn how behaviour affects safety on construction sites, including safety measures for scaffolding, excavation, demolition and more.

Course Assessment - Site Management Safety Training Scheme (SMSTS)

Learn how to manage safety on construction sites in accordance with UK legal provisions in this free online course.

Site Management Safety Training Scheme (SMSTS)

Construction workers are often vulnerable to injuries and hazards so ensuring safety is maintained consistently is crucial for both site managers and workers. This course covers the essential knowledge needed for maintaining safety on construction sites. You'll learn to identify and assess risks while adhering to UK industry regulations. In addition, we'll discuss safety measures to take during erecting scaffolding, excavations and demolitions.

Introduction to Hot Work

Classification of Hot Work Areas

Roles and Responsibilities

Hot Work Permit

Hot Work Risk Assessment

Essential Safety Precautions

This module will familiarize you with hot work processes, including their potential hazards and safety precautions. You'll learn how to assess the risks associated with hot work and determine appropriate control measures. You'll also understand the hot work permit system and the roles & responsibilities of those involved in the permitting process.

Hot Work Safety - Course Assessment

Learn how to manage the hazards associated with hot work processes in this free online health and safety course.

Hot Work Safety

This hot work safety training equips you with the essential knowledge to recognize and mitigate hot work hazards. You'll understand the hot work risk assessment process and hierarchy of controls for effectively reducing risks. The course explains the hot work permit system along with the roles and responsibilities of those involved in the permitting process. You'll also gain a clear understanding of hot work permitted and prohibited areas.

Introduction to Traffic Marshalling

Traffic Management

Temporary Traffic Control

Traffic Risk Assessment

Vehicle Signaling

Reversing Vehicles

Health and Safety

In this module, we will look at the fundamental objectives of traffic marshalling and the general duties of a traffic marshal. A traffic marshal's responsibilities when controlling traffic on a highway or construction areas shall be examined. Assessing risks along with health and safety concerns of traffic near construction areas will be assessed.

Construction Safety: Traffic Marshalling - Course assessment

Train as a traffic marshal or bankman who provides traffic management on construction sites in this free online course.

Construction Safety: Traffic Marshalling

This course takes an in-depth look at the role of traffic marshals on construction sites. Traffic management is important to maintaining health and safety as the presence of heavy machinery and large vehicles creates a need for the efficient direction of traffic. Traffic management in such a busy area faces hazards and safety risks, which we identify in this course. Sign up to train as a traffic marshal or bankman and add a skill to your CV.

Introduction to the AS Standards

Organization's Context and Leadership

QMS Planning and Support

This module introduces students to the AS standards for suppliers of the aviation industry. It explains the importance of regulations in the aerospace industry and navigates them through the journey of different AS standards. It also explains the requirements of Clauses 4, 5, 6, and 7 of this standard.

Organizational Operations

Operations and Evaluation

Organizational Improvement

This module explains the requirements of Clauses 8, 9, and 10 of AS9100D. These requirements are regarding organizational operations, evaluation, and continuous improvement of the organizational operations.

AS9100D Quality Management System (QMS) for Aerospace Industry - Course Assessment

Learn the requirements of AS9100D for the developers and suppliers of components for the aerospace & defense industries.

AS9100D Quality Management System (QMS) for Aerospace Industry

This course explains different clauses and their various requirements for the organizations that develop, design, or supply parts, components, and assemblies concerned with the aerospace and defense industries. After enrolling, the students will be able to navigate the differences between the different versions of the AS standards. Moreover, they will also get a simple and straightforward explanation of this standard's requirements.

Introduction to Hazardous Materials Handling - Learning Outcomes

Understanding Hazardous Materials

Legal and Regulatory Compliance

Importance of Hazard Communication

Risk Assessment and Management

Personal Protective Equipment (PPE) for Hazardous Materials Handling

Introduction to Hazardous Materials Handling - Lesson Summary

In this module, participants will have a solid foundation in understanding hazardous materials, legal and regulatory compliance, hazard communication, risk assessment, and the proper use of personal protective equipment. This knowledge is essential for creating a safe and compliant working environment in industries dealing with hazardous materials.

Hazardous Materials Storage and Transportation - Learning Outcomes

Proper Storage Practices for Hazardous Materials

Managing Segregation and Compatibility of Hazardous Materials

Emergency Preparedness for Hazardous Materials Storage

Transportation Regulations

Handling Hazardous Materials in Transit

Emergency Response Planning

Case Studies and Lessons Learned

Hazardous Materials Storage and Transportation - Lessons Summary

This module covers storing hazardous materials, segregation and compatibility, and developing emergency response plans. Learn DOT regulations, proper labelling, packaging, and security measures for transportation, best practices for loading/unloading and case studies.

Advanced Hazardous Materials Handling Techniques - Learning Outcomes

Decontamination Procedures

Confined Space Entry Protocols

Managing Hazardous Waste

Best Practices for Chemical Spill Response

Continuous Improvement in Hazardous Materials Handling

Advanced Hazardous Materials Handling Techniques - Lesson Summary

This module covers decontamination techniques to ensure health, safety, and regulatory compliance. Learn to manage decontamination zones, handle confined space hazards, and apply physical, chemical, thermal, and radiological decontamination. Develop skills in PPE selection, emergency response planning, and environmental protection.

Hazardous Materials Handling Mastery - Course Assessment

Gain expertise, ensure safety, and excel in hazardous materials handling with this comprehensive free online course.

Hazardous Materials Safety Specialist

This course covers the classification, legal compliance, and risk assessment of hazardous materials. It delves into communication standards, PPE usage, and storage guidelines. Transportation regulations and emergency response planning are also covered. Advanced techniques include decontamination, confined space entry, hazardous waste management, chemical spill response, and continuous improvement through safety audits and case studies.