Extension cords used with portable tools and appliances and temporary and portable lights shall be designed as what?

• A. Designed for hard or extra hard use
• B. Designed for standard use
• C. Designed for indoor use only
• D. Designed for weatherproof use

Answer: (A)

On worksites, extension cords used with portable tools and temporary lights must stand up to heavy handling, moisture, and rough surfaces. Cords designed for hard use are built with tougher jackets, thicker insulation, and reinforced connections so they can endure frequent flexing, dragging, and exposure without exposing conductors or creating hazards. This durability directly reduces the risk of electric shock or fire that can come from damaged cords in demanding environments. Other options don’t address the level of wear and environmental stress typical of construction settings, and while weatherproofing matters for moisture, it’s the overall rugged build of hard-use cords that makes them the appropriate choice for this use.