What is the minimum illumination requirement for general construction areas?

The minimum illumination requirement for general construction areas is set at 5 foot-candles. This standard is essential for ensuring safety on construction sites, as adequate lighting is crucial for visibility, helping workers see tools and equipment clearly, identifying potential hazards, and preventing accidents. Insufficient lighting can lead to mistakes, poor spatial awareness, and increased risk of injuries.

Setting the requirement at 5 foot-candles strikes a balance between providing enough light for safety while recognizing that construction areas may not always need the same level of illumination as more specialized environments. The adequate lighting helps in tasks such as reading blueprints, handling materials, and navigating the site safely during the early morning or late evening hours when natural light may be insufficient.