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SPORTS

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PowerPoint Slideshow about 'SPORTS' - larryhuis


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Presentation Transcript

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Behavior Objectives

  • Define the basics of Electrical Systems

  • Explain the basic principles of Electricity.

  • Describe the different materials used in Home Electrical Systems.


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Wiring

  • Electrical wiring is one of the three installations including plumbing, hearing ,and air conditioning.

  • Electrical wiring consists of wires, boxes, and devices that control the distribution and use of electricity. (wires, boxes, switches)


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Wiring

  • Electrical wiring powers lights, heating units, and appliances such as refrigerators, ovens and washing machines.


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Wiring Safety

  • Personal contact could cause serious injury or even death.

  • An electrical short may cause a fire.


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Wiring

This is why installation requires professional installation.


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Equipment and Materials

  • Conductors – These are the wires that carry current from the source.

  • Boxes and Covers – Covers, conceal and protect devices, such as switches and receptacles, placed in boxes in boxes.

  • Switches – Switches control the current to lights and appliances


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Equipment and Materials

  • Fuses and Circuit Breakers – Protect conductors from overloads, shutting off power to the circuit in case of a fault in the circuit or a too-heavy current draw that would heat up the wire and cause it to fail.

  • Receptacles (outlets) – Allows convenient connection of appliances and lights to a circuit.

  • Conduit– Pipes or enclosed channels through which conductors are run

  • Connectors – Secure connections between two or more conductors and conduit.


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Electricity

  • Electricity – is the flow of electrons in a conductor. (measured in amps)

  • Electrical Current – the force applied in order to achieve the flow of electrons.


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Electricity

  • Direct Current – Current flows in one continuous direction. (ex. Battery)

  • Alternating Current – The process of rapidly changing the direction of voltage. (ex. Home circuits)


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Services

  • Substation – a series of transformers that step down voltage before it is delivered to a large number of customers.

  • Step-Down Transformer – Each building has a step-down transformer to further step down the voltage.


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Electrical Circuits

  • Electrical Circuit – a complete path for current to flow.

  • Source – provides the electric energy to the circuit.

  • Conductor – the path for the electric energy.

  • Load – Utilizes the current to perform a useful purpose

  • Control Device – A device used to perform a certain task.



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Wires

Wires – Power (Red or Black)

Neutral (white)

Bare (ground)


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Recording your Knowledge

Place the correct word that goes with the definition.

1.___________ These are the wires that carry current from the source.

2.___________ This item conceals and protects devices, such as switches and receptacles, placed in boxes in boxes.

3. __________ This item controls the current to lights and appliances.

4. __________ Allows convenient connection of appliances and lights to a circuit.

5. __________ Pipes or enclosed channels through which conductors are run.

6. __________ Secure connections between two or more conductors and conduit.

7. __________ is a complete path for current to flow.

8. __________ is a series of transformers that step down voltage before it is delivered to a large number of customers.

Conductors Conduit

Boxes and Covers Connectors

Switches Electrical Circuit

Receptacles Substation


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