Which type of drawings should elevator constructors utilize exclusively?

Elevator constructors should utilize final and approved drawings exclusively because these drawings represent the definitive design and specifications that have been thoroughly reviewed and sanctioned by the relevant authorities or stakeholders. Final and approved drawings include all necessary details such as dimensions, materials, and installation procedures, ensuring that the construction process adheres to safety standards and design requirements.

Using final and approved drawings minimizes the risk of errors or discrepancies during installation, helping to ensure that the elevator operates safely and reliably. These drawings serve as a legally binding reference for compliance, and following them helps prevent potential liabilities associated with construction defects or safety issues.

While conceptual drawings, preliminary sketches, and field measurements may provide valuable insights or initial planning stages, they do not capture the necessary details or official approval required for the actual construction process. Therefore, relying solely on final and approved drawings is essential for successful and compliant elevator installation.