![]() Figure 1: A conductor moving in a magnetic field*. ![]() ![]() If the conductor forms a closed loop, the induced voltage would cause a current to flow though the conductor. When the conductor is moved horizontally (right to left) a voltage is induced in the conductor due to the changing flux linkage. 1 shows a conductor being moved in a magnetic field. Unit of mechanical power is horsepower. Power in DC circuit is P V x I I x R x I - Different types of load have different effect on power source. The Basic Electrical Training Board is modeled after a typical riding lawn mower electrical system. Basics of electricity- DC power - Power consumed in industry is almost A.C. The flux linkage can vary either by a magnetic field that is changing with time (due to AC current) or by moving the conductor in a stationary magnetic field. PDF copy of service and diagnostic manual. Mathematically the law is stated as follows: í µí°¸= í µí± í µí±∅ í µí±í µí±¡ (1) where, E = induced voltage (in volts) N = number of turns in the conductor Φ = Flux linking the conductor Note that the induced voltage E depends on the rate of change of flux linking the conductor. The magnitude of the induced voltage is proportional to the rate of change in the magnetic flux. This relationship is now known as Faraday's law of electromagnetic induction, which states: If the flux linking a conductor forming a loop changes with time, a voltage is induced at its terminal. In 1831 Michael Faraday discovered the fundamental relationship between the voltage and magnetic flux in a circuit. Make sure that all of your connections are correct before turning on the power. Adhere to electrical safety rule at all times. Wiring & Schematic Diagrams.Caution: In these experiments high voltages are involved, which could be harmful or fatal if one is exposed to them. Specific topics include: - Electrical Fundamentals. This addition to the CFAA line-up of educational materials is yet another major step forward in the CFAA mandate of providing educational support for the Fire Alarm Industry. set meter to volts a/c red lead goes to one coil connection. This manual has been written specifically to meet the content requirements of Course 3 of the CFAA Fire Alarm Technology Program. 120vac locate the motor contactor and identify the coil connections (usually labeled a1 and a2). A Technician must also be able to knowledgeably discuss installation details relating to installation standards and electrical codes. A Fire Alarm System is an electrical/electronic system, and a competent Fire Alarm Technician must be able to fully understand how devices and systems operate. This manual has been written specifically to meet the content requirements of Course 3 of the CFAA Fire Alarm Technology Program.ĬFAA COURSE 3 Basic Electricity for the Fire Alarm Technician Simulated Exam & Re-proctored Examġ1 Videos include an overview of the following sections of Basic Electricity for the Fire Alarm Technician Manual:īASIC ELECTRICITY FOR THE FIRE ALARM TECHNICIANĪ Fire Alarm Systems Technician must have a basic understanding of electricity. Prepare for exam success with this new exam package! Guided videos will assist with your review of the course content, book references provided for questions to assist with study and practice quizzes include wrong answer reports to help test your knowledge before you move on to complete the Basic Electricity Exam. Watch 11 content videos, take practice quizzes, and complete your Basic Electricity Exam all in one convenient online course! It covers topics such as electrical hazards, safe work practices, lockout/tagout, grounding, and personal protective equipment. ![]() Please note: this course expires 180 days from date of purchase.Ĭourse 3 Basic Electricity for the Fire Alarm Technician with Video Exam Guide Electrical Safety Manual - Occupational Safety and Health AdministrationThis manual provides guidance and resources for developing and conducting electrical safety training for general industry workers. ![]()
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