Which statement best describes intrinsic safety in terms of energy management in hazardous areas?

• A. Intrinsic safety relies on shielding to prevent ignition.
• B. Harnessing the protective earth to ensure barrier operation.
• C. Intrinsic safety limits energy to prevent ignition; barriers and isolators (ex-certified) with proper gas group/temperature ratings constitute barriers; devices must be certified for hazardous areas.
• D. Using only standard non-certified equipment in hazardous areas.

Answer: (C)