What are the two phases of residential electrical installation?

The two phases of residential electrical installation are Rough-in and Trim-out. During the Rough-in phase, the electrical framework is set up, which includes running wires, installing electrical boxes, and ensuring that all the necessary conduit and connections for the power supply are in place. This stage is crucial as it establishes the basic layout and safety measures before any fixtures or finishes are applied.

The Trim-out phase follows, during which all the visible components are installed. This includes attaching light fixtures, outlets, switches, and cover plates. During this phase, attention to detail is critical for aesthetic purposes and ensuring functionality. It's also when the final adjustments and necessary connections are made to prepare the system for use.

Other options do not accurately describe the phases in residential electrical installation. Installation and Maintenance refers to ongoing work rather than specific phases of installation. Design and Implementation are broader terms that encompass planning and execution but do not specifically identify the distinct phases of electrical work. Testing and Inspection, while important, typically occurs after the installation phases and is not a part of the initial installation process itself.