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Safety Standards & Regulations Flashcards

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

Read the first 7 Safety Standards & Regulations flashcards as text

  1. A tagout device alone (without a lockout device) may be used when:

    Answer: The employer can demonstrate that tagging provides the same protection as locking, and lockout is not feasible

    OSHA 1910.147(c)(3) permits tagout-only when the employer proves full employee protection equivalent to lockout, since lockout is always preferred.

  2. Which NEC article governs the installation of wiring methods and materials in hazardous (classified) locations?

    Answer: Articles 500–516

    NEC Articles 500–516 cover electrical installations in hazardous classified locations where flammable gases, vapors, or dusts may be present.

  3. What does the 'incident energy' measurement in an arc flash hazard analysis represent?

    Answer: The thermal energy released at a working distance during an arc flash event, measured in cal/cm²

    Incident energy is the amount of thermal energy (cal/cm²) an arc flash releases at a specific working distance, used to select appropriate PPE.

  4. Under OSHA's Electrical Safety standard, who is responsible for ensuring workers have appropriate PPE for electrical work?

    Answer: Both the employer and the employee share responsibility

    OSHA places the primary duty on employers to provide appropriate PPE and training, while employees are responsible for using it correctly.

  5. What is the minimum insulation voltage rating required for rubber insulating gloves used when working on 480V circuits?

    Answer: Class 0 (1,000V)

    ASTM F496 Class 0 gloves are rated for use up to 1,000V AC max-use voltage, making them the minimum acceptable choice for 480V work.

  6. What does NEC 110.3(B) require when installing listed electrical equipment?

    Answer: Equipment must be installed and used in accordance with its listing and labeling instructions

    NEC 110.3(B) mandates that listed or labeled equipment be installed and used in accordance with any instructions included in the listing or labeling.

  7. Which OSHA standard specifically addresses electrical safety requirements for the construction industry (as opposed to general industry)?

    Answer: 29 CFR 1926 Subpart K

    29 CFR 1926 Subpart K covers electrical safety standards specifically for the construction industry, separate from the general industry standard in 1910 Subpart S.