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Code Compliance & Standards Flashcards

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

Read the first 7 Code Compliance & Standards flashcards as text

  1. When performing lockout/tagout under OSHA 29 CFR 1910.147, after isolation and lockout, what is the required next step before beginning work?

    Answer: Verify zero energy state by testing for absent voltage

    After lockout, the worker must verify the zero-energy state by attempting to start or test the equipment and confirming absence of voltage.

  2. According to NFPA 70E Table 130.5(C), which task is likely to require the highest incident energy PPE level?

    Answer: Racking in a medium-voltage circuit breaker with the door open

    Racking in medium-voltage circuit breakers with open doors exposes workers to the highest arc flash potential, requiring the highest PPE level.

  3. Under NEC Article 110.9, overcurrent protective devices must have an interrupting rating sufficient for the available:

    Answer: Short-circuit current at the point of installation

    NEC 110.9 requires that devices have an interrupting rating equal to or greater than the available short-circuit current at the point of installation.

  4. Which IEEE standard defines the requirements for transformer protection and the settings for differential relays on large power transformers?

    Answer: IEEE C37.91

    IEEE C37.91 provides guide for protective relay applications to power transformers, including differential relay settings and considerations.

  5. In electrical safety, what does 'flash hazard analysis' determine according to NFPA 70E?

    Answer: The incident energy level and required PPE for a specific work task

    Flash hazard analysis calculates the incident energy at a work location to determine required PPE category and arc flash boundary.

  6. AEP's transmission operations must comply with NERC Reliability Standards. Which NERC standard addresses transmission planning and steady-state voltage requirements?

    Answer: TPL-001

    NERC TPL-001 establishes transmission planning standards, including steady-state performance requirements under various contingency levels.

  7. Under OSHA 29 CFR 1910.269, what is the minimum insulation rating required for rubber insulating gloves used by qualified electrical workers at 15kV?

    Answer: Class 2 (17,000V rated)

    Class 2 rubber insulating gloves are rated to 17,000V and are the minimum required for work on 15kV class equipment.