Online Conductors eLearning

Overcurrent Protection ...rent is a current that exceeds the amperage rating of the conductors (cable), equipment (motors, instruments) or other devices in a circuit. Without adequate protection, an overcurrent can damage conductors and equipment and potentially harm people. Protection devices, such as fuses and circuit breakers, are installed in a circuit to detect an overcurrent condition and selectively protect  more...

Introduction to High Temperature Superconductors ...e student will become familiar with high temperature superconductors, the Meissner effect, the zero resistance effect, availability of experimentation kits, how to make a superconductor from scratch, applications for superconductors, and superconductor patent information. By possibly implementing existing superconductor technology in devices such as electromagnets, the student can increase  more...

Controlling Electrical Hazards ... and skills: Identifying materials that are electrical conductors and insulators The effects of electric current in the human body Dangers of static electricity Protection against electrical hazards including insulation, grounding, circuit-protection devices, lockout/tagout and personal protective equipment Protection around overhead power lines State Board Acceptance This  more...

Electrical Conductors ...n colloquially as an electrical wire. Wires are very good conductors, which mean that they have very little resistance. In fact, their resistance is so small that often we consider it to be zero. (In other words, we often treat wires as perfect conductors). In the United States, conductors are measured by American wire gauge (abbreviated AWG) for smaller ones, and circular mils for larger  more...

Introduction to Matter Energy and Electricity ...t. This continuous movement of free electrons through the conductors of a circuit is called a current, and it is often referred to in terms of "flow," just like the flow of a liquid through a hollow pipe. The force motivating electrons to "flow" in a circuit is called voltage. Voltage is a specific measure of potential energy that is always relative between two points. When  more...

Reactance in AC Circuits - Fundamental Concepts ...han by resistance. Steady electric currents flowing along conductors in one direction undergo opposition called electrical resistance, but no reactance. Reactance is present in addition to resistance when conductors carry alternating current. Reactance also occurs for short intervals when direct current is changing as it approaches or departs from steady flow (e.g., when switches are closed or  more...

Facility Lightning Protection Fundamentals ... to an air terminal and thus discharge the energy through conductors to the earth. This course will refresh your general knowledge of LPS or provide you with general information so that you can ensure that the structure to be protected receives the proper number of Air Terminals, down conductors, and uses appropriate materials. Additionally you will be exposed to surge arrestors and  more...

Introduction to Solid State Semiconductors ...to electronic circuitry that is built entirely out of semiconductors. A semiconductor is a solid whose electrical conductivity is somewhat between good conductors and insulators. Why are semiconductors so special? Almost all electronics that we have today are built around semiconductors. These are special because we can very easily control how current passes through them. We don't have  more...