How to Install and Wire a Sub Panel

This paragraph introduces the video's purpose, which is to teach viewers how to install an electrical subpanel. It emphasizes that the video is designed for individuals with little to no electrical experience, providing a step-by-step guide from start to finish. The video is structured into chapters for easy navigation, and additional resources such as a shopping list and a written tutorial are available for download. The creator shares his motivation for creating comprehensive tutorials to address the common frustration of incomplete information across different videos. The paragraph also mentions the collaboration with Jason Bonham and Jeff Bonham in demonstrating how to install an 80 or 100 amp subpanel, catering to viewers who desire detailed perfection in their projects.

The second paragraph delves into the decision-making process for choosing the appropriate subpanel and determining the number of circuits needed. It explains the importance of selecting a panel based on the load it will carry and suggests opting for a larger circuit for future expansion. The video mentions various reputable brands and suggests that higher quality often comes with a higher price. Additionally, it outlines the requirements for the subpanel's location, emphasizing accessibility and adherence to legal height and space regulations. The paragraph also touches on the necessity of obtaining a permit and having the installation inspected by an electrical inspector to ensure safety and catch potential mistakes.

This paragraph focuses on the process of running the feeder wire from the main panel to the subpanel, explaining the difference between service, feeder, and branch circuits. It details the selection of wire gauge based on the required load (e.g., using a number 2 wire for an 80 amp subpanel) and the importance of derating when the wire passes through insulation. The paragraph also clarifies the connection process at the main panel, where neutrals and grounds are bonded together, and at the subpanel, where they must be isolated. It provides a step-by-step guide on preparing and connecting the wires, including the use of a grounding bar and the application of an antioxidant compound.

The third paragraph emphasizes safety precautions when working with electrical equipment, stressing the importance of turning off the main breaker before opening the panel. It describes the process of connecting the other end of the cable to the main electrical panel, highlighting the need for care when handling the cable and the importance of using a connector. The paragraph also discusses the use of a service loop for future repairs and the process of stripping and connecting wires to their respective lugs. It touches on the differences between main service wiring and subpanel wiring, as well as the need for an 80 amp breaker in the main service for the subpanel.

The fourth paragraph covers the installation of the subpanel and the wiring of circuits. It explains the process of connecting the hot and neutral wires to the breaker and the importance of using deox on aluminum wiring to prevent corrosion. The paragraph also discusses the relocation of grounds to a ground bar and the transformation of the neutral bar in the subpanel. It provides an example of wiring a room addition, emphasizing the importance of correct wiring and adherence to inspector standards. The paragraph concludes with the preparation of circuits for a salon, including the use of knockouts and connectors.

The fifth paragraph focuses on the wiring of outlets and the protection they require. It describes the process of creating knockouts for wiring, the use of wire cutters, and the importance of proper wire connection without pinching. The paragraph discusses the requirement for arc fault protection in certain circuits, such as those in a salon, and the need for GSCI protection in others. It provides a detailed explanation of the difference between ground and neutral wires, the potential dangers of mixing neutrals from different circuits, and the proper way to twist and connect ground wires. The paragraph concludes with the wiring of a 20 amp circuit in the garage with GFCI protection, emphasizing the benefits of using a GFCI device for multiple outlets.

The final paragraph discusses the connection of outlets and the installation of a Ground Fault Circuit Interrupter (GFCI) device. It explains the process of stripping wires and connecting them to the outlet, paying attention to the distinction between the line (hot) wire and the load wire. The paragraph highlights the function of a GFCI device, which monitors the current on both hot and neutral wires to prevent electric shock. It describes the correct way to connect the wires to the GFCI device, the need for labeling other outlets as GFCI protected, and the importance of twisting and clamping ground wires together. The paragraph concludes with the temporary use of a GFCI device for jobs requiring temporary power.