Which factor should be reviewed before beginning overhead rough-in for electrical installations?

Before starting overhead rough-in for electrical installations, it's essential to review both the blueprints and local codes. Blueprints provide the specific layout and design needed for the installation, outlining the location of electrical components such as wiring, devices, and fixtures. By understanding the design intent as specified in the blueprints, the electrician can accurately and efficiently carry out the installation in compliance with the project specifications.

Local codes are equally important as they dictate the legal standards and safety regulations that must be followed during the installation. These codes ensure that the work adheres to safety practices, potentially preventing hazards that could arise from violations. Local codes encompass requirements related to wiring methods, clearances, and circuit capacities, which are crucial for a safe and effective electrical system.

Incorporating both blueprints and local codes ensures that the overhead rough-in is not only built to specification but also complies with all legal and safety standards. This comprehensive approach mitigates the risk of rework and enhances overall safety and reliability in the electrical installation process.