Always turn off power when working inside a control panel or on any other electrical device turn off the service breaker feeding the control panel or electrical device usually located outside of the control panel. The following is a brief description of the information presented in each module of the handbook.
Electrical Wiring Theory Wiring Practices Electrical Wiring
Basic electrical wiring theory pdf. Construction electrician your understanding and knowledge of basic electrical theory will able to conduct the navys mission. Voltage always follows the path of least resistance it takes less than 1 amp of current to stop your heart. This current varying in parallel circuits brought about kirchoffs next big law in basic electrical engineering kirchoffs current law kcl. Technical learning college ceu training for water wastewater. Basic electrical theory troubleshooting. Turning off the breakers in the control panel only.
Safetyis the most important thing. Electrical theory is a basic building block that every potential electrician must understand from the start. For safety all modern circuits include a bare copper or green insulated grounding wire. This law basically states that current into a node will equal the current out of the node. Electricity makes no sound doesnt have an odour and cant be seen. Electrical theory and application voltspdf 31504 rev12 page 2 2004 ll kiln mfg inc.
Looking at the node connection between two loops in the diagram below we already know that to be true. There are three basic. Current enters a circuit loop on hot wires and returns along neutral wires. Understand the components of electricity and matter. Determine voltage amperage and resistance. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology.
In other words the net current in a node is zero or 0 iin iout. The complete guide to electrical wiring current with 20142017 electrical codes by blackdecker. The electrical science handbook consists of fifteen modules that are contained in four volumes. Understand the theory of magnetism. These wires are color coded for easy identification. Reading and communication skills are other aspects one must develop and improve to be a successful worker in the electrical field.
Answers to check your understanding 367 appendix a. Hot wires are black or red and neutral wires are white or light gray. Identify the material and devices in use in electrical current flow. Basic mathematical skills are used everyday by construction electricians. Identify the elements involved in electrical current flow. Electricity can kill you.
0 2923ma 1163ma 176ma. The physical demands of the job are one important part of the skills needed to succeed. Abbreviations symbols and codes 371 appendix b. Module 2 basic. A sound understanding of these basics prepares you for the more complex math skills youre likely to use on construction projects ranging from whole numbers fractions decimals ratios proportions percentages and square roots to measurements and calculations using geometric shapes. Understand the principles of electromagnetism and electromagnetic induction.
Understand the theory of electricity. The grounding wire conducts current in the event of a ground fault and helps reduce the chance of severe. Chapter 10 alternating current theory and electrical machines 193 chapter 11 polyphase or three phase electrical systems 221 chapter 12 overcurrent short circuit and earth fault protection 233 unit 4 installation buildings and structures 259 chapter 13 statutory regulations and codes of practice 261 chapter 14 electrical installations and wiring systems 279 contents v. Identify the types of electrical circuits used in vehicles. Introduction to electrical theory description working as an electrician requires many skills.
Gallery of Basic Electrical Wiring Theory Pdf
