On newly installed, structurally repaired or structurally overhauled systems, what test is conducted at 200% of WLL and held for not less than 10 minutes?

On newly installed, structurally repaired or structurally overhauled systems, what test is conducted at 200% of WLL and held for not less than 10 minutes?

• A. Static Load Test
• B. Proof Load Test
• C. Operational Test
• D. Acceptance Test

Answer: (A)

When a lifting system is newly installed or has been structurally repaired or overhauled, you verify its strength by applying a static overload and holding it. The specified test uses 200% of the Working Load Limit and is held for at least 10 minutes. Because the load is applied statically and held, this checks the structure’s ability to carry a significant overload without permanent deformation, cracking, or excessive deflection, confirming a safe margin beyond the normal working load. This is distinct from tests that cycle loads or focus on function in operation or acceptance criteria, which serve different purposes.

When a lifting system is newly installed or has been structurally repaired or overhauled, you verify its strength by applying a static overload and holding it. The specified test uses 200% of the Working Load Limit and is held for at least 10 minutes. Because the load is applied statically and held, this checks the structure’s ability to carry a significant overload without permanent deformation, cracking, or excessive deflection, confirming a safe margin beyond the normal working load. This is distinct from tests that cycle loads or focus on function in operation or acceptance criteria, which serve different purposes.