NABCEP PV Installation Professional Practice Exam

Question: 1 / 400

What is the required height for guardrail systems on unprotected sides of landings?

36 inches

42 inches

The required height for guardrail systems on unprotected sides of landings is 42 inches. This height is established to ensure safety and prevent falls from elevated surfaces. The 42-inch measurement is standardized to provide adequate protection for workers and pedestrians, creating a reliable barrier that minimizes the risk of accidental falls. A guardrail at this height effectively balances safety and functionality, allowing for visibility and movement, while still serving its primary purpose of fall protection.

Other potential height options do not align with the regulatory requirements dictated by safety standards. Heights below 42 inches may not provide sufficient fall protection, whereas higher guardrail heights could lead to complications in usage and compliance with safety protocols. Therefore, the standard of 42 inches stands as the correct requirement for guardrail systems on unprotected sides of landings.

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48 inches

54 inches

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