INTERPRET TECHNICAL DATA.pptx...........

TLE 8

1. INTERPRET TECHNICAL DRAWINGS & PLANS

2. ELECTRICAL WIRING DIAGRAM The flow of current in a conductor or wire can be represented by diagram. There are two types of diagram: pictorial diagram and schematic diagram.

3. Two types of Diagram Pictorial diagram is a sketch of electrical circuit that shows the external appearance of each component. It is much like a photograph of the circuit and uses simple images of parts. Schematic diagram is a sketch showing the components of the circuit using standard electrical symbols. It shows the actual number of components and how the wiring is routed but not the actual location.

4. Pictorial Diagram Schematic Diagram

5. Two types of Diagram

6. Types of Circuit Series Circuit is a circuit in which lamps are arranged in a chain, so that the current has only one path to take. The current is the same through each load. Example of this is the Christmas lights. It consists of a number of bulbs that are connected side by side to meet the voltage requirement which is 220 volts for alternating current. Parallel Circuit is a circuit in which lamps are connected across the wires. The voltage across each load on parallel circuit is the same. The advantage of using parallel circuit is that even if one of the lamps fails, still the remaining lamps will function.

7. Types of Circuit

8. Types of Circuit

9. Types of Circuit

10. ELECTRICAL PLAN Electrical plan is a graphical presentation of electrical wiring connections to install in a particular house or building. It indicates the position of electrical fixtures such as convenience outlets, switches, lightings, door bells, and others to be installed.

11. Types of Circuit

12. Let’s try to draw the schematic diagrams of the following: 1. Two bulbs connected in series controlled by a single pole switch using direct current. 2. Four bulbs connected in parallel controlled by a single pole switch using alternating current.

13. TEST I. Multiple Choice Write the letter of your chosen answer. Is a graphical presentation of electrical wiring connections to install in a particular house or building. Pictorial Diagram C. Electrical Plan Schematic Diagram D. Series Circuit

14. 2. Is a circuit in which lamps are arranged in a chain, so that the current has only one path to take. The current is the same through each load. A. Pictorial Diagram C. Parallel Circuit B. Schematic Diagram D. Series Circuit

15. 3. Is a sketch of electrical circuit that shows the external appearance of each component. It is much like a photograph of the circuit and uses simple images of parts. A. Pictorial Diagram C. Parallel Circuit B. Schematic Diagram D. Series Circuit

16. 4. Is a circuit in which lamps are connected across the wires. The voltage across each load on parallel circuit is the same. A. Pictorial Diagram C. Parallel Circuit B. Schematic Diagram D. Series Circuit

17. 6. Is a sketch showing the components of the circuit using standard electrical symbols. A. Pictorial Diagram C. Parallel Circuit B. Schematic Diagram D. Series Circuit

18. TEST II. Directions: Draw the schematic diagrams of the following in circuits. Write them down in your activity notebook. 1. Three bulbs connected in series controlled by a single pole switch using direct current. 2. Three bulbs connected in parallel controlled by a single pole switch using direct current. 3. Three bulbs connected in parallel controlled by a single pole switch using alternating current.