PPT-SciencePoint ELECTRICAL CIRCUIT DIAGRAMS

Introduction to GLOBE SWITCH BATTERY WIRE A SIMPLE ELECTRICAL CIRCUIT Teacher Guide Click on the light switch to turn the globe on and off Hide Teacher Guide Show Teacher Guide GLOBE SWITCH. . Copyright © Texas Education Agency, 2011. All rights reserved.. 2. Objectives . Working safely in a construction environment. . Electrical Hazards in the workplace.. Conditions that affect the severity of electrical shock. ANR Building, Davis. Staff Meeting. February, 2015. Electrical Hazards/Injuries. Electrical equipment used in office areas is potentially hazardous . and can cause:. Shock. – most common hazard, occurs when the human body becomes part of the path through which the current flows. Electrical circuits require protection to prevent fire or electrocution in the event of a fault. There are two main types of circuit protection used RCD’s and MCB’s. . (RCD) Residual Current Device. p730 - 735. Essential Questions. How does the wiring in a circuit change its ability to supply power to devices?. How do we represent physical circuit elements in schematic drawings?. Objective(s. ): . INTRODUCTION. Electrical diagrams are drawings in which lines, symbols, letter and number combinations are used to represent electrical circuits. . In some plants, electrical diagrams may also be called prints, or blue prints. Bellwork. : Use the Ohm's law equation to determine the missing values in the following circuits.. Drawing Electrical. Circuit Diagrams. name variable unit symbol . source of . emf. ε volts V . ON . 400 KV GSS(RRVPNL). BIKANER. CONTENTS. INTRODUCTION. SUBSTATION. TRANSFORMER. CVT. CURRENT TRANSFORMER. POTENTIAL TRANSFORMER. CIRCUIT BREAKER. ISOLATOR. BUSBAR. INSULATOR. PLCC. WAVE TRAP. RELAY. and Ohm’s Law. The basics of electrical measurement. . Voltage is electrical pressure, which is potential force or the difference in electrical charge between two points. Voltage pushes electrical currents though a wire but not through its insulation.. Making Electricity Useful. Circuit Diagrams. Electrical circuits can be shown in diagrams using symbols:. 9.0V. Circuit Diagram Symbols. :. AC. DC. battery. AC power supply. DC power supply. bulb. resistor. Sections 5.1-5.2: pages 186-201; 208-214. Potential difference (in a circuit). Energy GAINED by electrons:. The electrons in a wire gain potential energy when passing through the cell or battery.. Electromotive force (emf) . Up to this point we have learned that static electricity can build up to a point where it results in the discharge of that energy in the form of a spark or lightning strike.. Next we will draw on your prior knowledge (gr. 6) to help learn about currents and circuits. . Electrical Safety Statistics. On average, there are 70 electrocution fatalities due to consumer products each year. . http://www.cpsc.gov/en/Research--Statistics/Electrocutions1/Electrocutions/. Approximately half of home electrical fires involve electrical distribution or lighting. Sixth Edition. Chapter 45. Wiring Schematics and Circuit Testing. Copyright © 2018, 2015, 2011. . Pearson Education, Inc.. . All Rights Reserved. LEARNING OBJECTIVES (1 of 2). 45.1. . Interpret wiring schematics and explain the . SYMBOLS OF THE COMPONENTS. Cells in series & parallel. An open & closed switch. An ammeter. A voltmeter. Resistors in series & parallel. Bulbs in series & parallel. A variable resistor.