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Electrical Safety and Personal Protective Equipment Flashcards

7 cards from real 309A practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Electrical Safety and Personal Protective Equipment flashcards as text

  1. What does LOTO stand for in electrical safety procedures?

    Answer: Lockout/Tagout

    LOTO stands for Lockout/Tagout, a safety procedure that ensures dangerous equipment is properly shut off and isolated before maintenance begins.

  2. According to CEC Rule 2-308, what is the minimum clear working space required in front of panelboards rated at 600V or less?

    Answer: 900 mm

    CEC Rule 2-308 requires a minimum of 900 mm of clear working space in front of electrical equipment operating at 600V or less.

  3. What class of rubber insulating gloves provides adequate protection for working on 600V systems?

    Answer: Class 0 (rated to 1000V AC)

    Class 0 gloves are rated for a maximum use voltage of 1,000V AC, providing the appropriate safety margin when working on 600V systems.

  4. What is the primary purpose of a Ground Fault Circuit Interrupter (GFCI)?

    Answer: Protecting people from electric shock caused by ground faults

    A GFCI detects ground fault currents as low as 4–6 mA and quickly opens the circuit to prevent lethal electric shock.

  5. Which of the following is NOT a recognized energy form that must be controlled under a lockout/tagout procedure?

    Answer: Sound energy

    LOTO procedures control electrical, mechanical, hydraulic, pneumatic, chemical, thermal, and gravitational energy, but sound energy is not a recognized hazardous energy source in this context.

  6. Which statement best describes arc flash?

    Answer: A dangerous release of energy from an electric arc producing intense heat, pressure, and light

    Arc flash is a rapid release of energy from an electric arc that can cause severe burns, hearing damage, and fatal injuries from heat and pressure waves.

  7. According to the CEC, in which locations is GFCI protection required in a residential installation?

    Answer: In bathrooms, garages, outdoors, and unfinished basements

    The CEC requires GFCI protection in bathrooms, garages, outdoors, and unfinished basement areas because these locations have increased risk of shock from moisture.