Electrical Plans and Symbols Review
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Questions and Answers

What is the primary purpose of an electrical plan?

  • To provide technical representation of proposed electrical systems (correct)
  • To specify the color schemes of electrical components
  • To outline the budget for electrical work
  • To list all local electrical codes and regulations
  • Which of the following is typically included in the electrical power layout of an electrical plan?

  • Location of fire exits
  • Location of light fixtures only
  • Location of service equipment and disconnecting means (correct)
  • Location of the main entrance of the building
  • What type of electrical symbol can be used to represent a compact fluorescent lamp in an electrical plan?

  • Specific symbol defined in electrical standards (correct)
  • Square with a diagonal line
  • Straight line with a zigzag pattern
  • Circle with a cross inside
  • Which of the following symbols is used to denote the location of a convenience outlet in an electrical plan?

    <p>A circle indicated with a letter 'O'</p> Signup and view all the answers

    What information is NOT typically found in the appendix of the Philippine Electrical Code?

    <p>Interconnection details of electrical wires</p> Signup and view all the answers

    What is the function of a circuit homerun?

    <p>To run a direct line from a circuit breaker to a fixture</p> Signup and view all the answers

    Which type of outlet is specifically mentioned as a refrigerator outlet?

    <p>Three-prong cooking range outlet</p> Signup and view all the answers

    Which of the following types of switches can control a light fixture from three different locations?

    <p>Three-way switch</p> Signup and view all the answers

    What does the symbol 'S3w' represent in electrical terms?

    <p>Three-way switch</p> Signup and view all the answers

    What type of loads are included in the schedule of loads?

    <p>Appliance and lighting loads</p> Signup and view all the answers

    In a riser diagram, which of the following is NOT typically included?

    <p>Maintenance schedules</p> Signup and view all the answers

    What is indicated by the term 'PEC standards' in electrical work?

    <p>Philippine Electrical Code standards</p> Signup and view all the answers

    Which of the following outlets is NOT typically included in the list provided?

    <p>Heating outlet</p> Signup and view all the answers

    Study Notes

    Electrical Reviewer

    • Includes parts of electrical plans, service entrance requirements, and steps for securing electrical permits.
    • Electrical plans provide a technical representation of electrical systems for buildings and houses.
    • These plans include symbols for electrical components, connections, and power lines.

    Parts of an Electrical Plan

    • Electrical Lighting: Includes the locations of lighting outlets and switches, along with their corresponding symbols.
    • Electrical Power Layout: Shows the locations of outlets for various appliances (e.g., convenience outlets, ACU, telephones, intercom, TV outlets, CCTV, fire detection, and alarm systems). Also details service equipment and kilowatt-hour meters.

    Electrical Symbols and Configurations

    • Standard electrical symbols are used, and can be found in appendix A of the Philippine Electrical Code.
    • Symbols are used for devices and equipment.
    • Symbols for lights (e.g., tubular/compact fluorescent lamps).
    • Symbols for outlets (e.g. Duplex Convenience Outlets, Weatherproof Duplex, Refrigerator Outlets).
    • Symbols for other components (e.g., wall brackets).

    Electrical Symbols (Page 2)

    • Symbols for various outlets are shown, including range outlets, air-conditioning outlets, water heater outlets, washing machine outlets, garbage disposal outlets, and telephone outlets.
    • Symbols for TV antenna outlets, master antenna TV outlets, and telephone terminal outlets are also included.
    • Symbols for switches: single pole, three-way, and four-way switches.

    Schedule of Loads

    • Tables showing lighting and power loads, computations, and motor loads (e.g., different types of lamps, outlets, and appliances).
    • Data such as wattage per lamp, circuit, and amperage are included.

    Riser Diagram

    • Describes the number of branch circuits, conductors, conduit size, and protection for branch circuits. Includes different types of feeders and service entrance conductors.
    • Data on protective devices is included (e.g., size of service entrance conductors, and main protective devices).

    General Notes/Specifications

    • Design follows Philippine Electrical Code (PEC) standards.
    • Electrical work meets relevant authority requirements.
    • Nature of the service, including voltage, phase, and frequency, is detailed.

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    Description

    This quiz covers key concepts related to electrical plans, including lighting arrangements, power layouts, and standard symbols used in electrical systems. It highlights essential service entrance requirements and the process for securing electrical permits. Perfect for anyone looking to deepen their understanding of electrical design standards.

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