How many sets of electrical prints must be marked up to indicate accurate as-built conditions?

In construction and electrical work, marking up sets of electrical prints is crucial for documenting changes that occur during the installation process, leading to accurate as-built conditions. The correct answer indicates that only one set of prints needs to be marked up.

Marking up one set of prints is essential because this version will serve as the reference for future maintenance, alterations, or for other stakeholders involved in the project. Typically, this marked-up set will reflect all significant modifications, such as the location of wiring, equipment, and any changes made during the installation. This approach ensures clarity and avoids confusion, as having multiple marked sets could lead to miscommunication about the final installation details.

While you may be tempted to consider multiple sets or "all sets," maintaining one carefully marked document is more practical for tracking revisions and changes. It streamlines the communication process, making it easier for all parties involved to stay updated with the precise details of the installation.