Which statement is true regarding service conductors near working openings such as windows or doors?

Which statement is true regarding service conductors near working openings such as windows or doors?

• A. They must be at least 3 feet away
• B. They must be at least 1 foot away
• C. They can be within 1 foot if shielded
• D. They must be outside the building and 5 feet away

Answer: (A)

Safety around energized service conductors hinges on keeping a clear space between the conductors and any building opening where people can pass, such as a window or a door. The established minimum is three feet. That distance helps prevent accidental contact and reduces the risk of arcing or damage if someone or something comes near the energized conductors, even when doors or windows are open. So, keeping three feet away from these openings is the standard you’d apply in the field. Shorter distances aren’t allowed because shielding or other tricks don’t substitute for the required clearance. Being farther away, like five feet outside, meets the idea of distance but isn’t the specific minimum the code dictates; the key point is that the distance must be at least three feet.

Safety around energized service conductors hinges on keeping a clear space between the conductors and any building opening where people can pass, such as a window or a door. The established minimum is three feet. That distance helps prevent accidental contact and reduces the risk of arcing or damage if someone or something comes near the energized conductors, even when doors or windows are open.

So, keeping three feet away from these openings is the standard you’d apply in the field. Shorter distances aren’t allowed because shielding or other tricks don’t substitute for the required clearance. Being farther away, like five feet outside, meets the idea of distance but isn’t the specific minimum the code dictates; the key point is that the distance must be at least three feet.