Extension cords are a lifesaver when it comes to powering up electrical appliances and devices that are located far from the power source. However, if you don’t know how to wire an extension cord plug, you may end up with a dangerous electrical hazard. In this article, we will go over the extension cord plug wiring diagram and provide you with all the information you need to safely wire an extension cord plug.
What is an Extension Cord Plug Wiring Diagram?
Before we dive into the wiring diagram, it’s important to understand what an extension cord plug wiring diagram is. In simple terms, it’s a diagram that shows you how to connect the wires of an extension cord to a plug so that electricity can flow through it safely. The diagram also indicates the correct color coding of wires and the number of wires required for the plug.
Components of an Extension Cord Plug
Before we discuss the wiring diagram, let’s take a closer look at the components of an extension cord plug. An extension cord plug consists of the following parts:
| Component | Description |
|---|---|
| Plug Body | A plastic or rubber casing that holds the internal parts of the plug together. |
| Prongs | The metal blades that extend from the plug and insert into the electrical outlet. |
| Terminal Screws | The screws that secure the wires to the plug. |
Extension Cord Plug Wiring Diagram
The wiring diagram for an extension cord plug may vary depending on the type of plug you are using. However, most plugs follow a similar wiring pattern. Here’s a step-by-step guide on how to wire an extension cord plug:
Step 1: Gather Your Materials and Tools
To wire an extension cord plug, you will need the following materials and tools:
- A 3-wire extension cord
- A plug
- A wire stripper
- A screwdriver
Step 2: Strip the Wires
Using a wire stripper, strip about an inch of insulation from the end of the extension cord wires. Be careful not to cut the wires.
Step 3: Connect the Wires to the Plug
Insert the stripped wires into the plug body, making sure they are in the correct terminals. The terminals should be labeled “L,” “N,” and “G.” Connect the black wire to the “L” terminal, the white wire to the “N” terminal, and the green or bare wire to the “G” terminal.
Step 4: Tighten the Terminal Screws
Using a screwdriver, tighten the terminal screws to secure the wires in place. Make sure the wires are tightly secured, but don’t over-tighten the screws as this may damage the wires.
Step 5: Close the Plug Body
Once the wires are securely connected, snap the plug body back together. Make sure the prongs are aligned correctly and firm against the plug body.
FAQs
Q. What is the difference between a 2-wire and 3-wire extension cord plug?
A. A 2-wire extension cord plug has two terminals – a hot wire and a neutral wire. A 3-wire extension cord plug has an additional terminal for the ground wire, which provides an extra layer of protection against electrical shock.
Q. What is the color coding for the wires in an extension cord?
A. In a typical 3-wire extension cord, the black wire is the hot wire, the white wire is the neutral wire, and the green or bare wire is the ground wire.
Q. Can I repair a damaged extension cord plug?
A. Yes, if the damage is minor, you can repair a damaged extension cord plug by following the wiring diagram and replacing the damaged parts. However, if the damage is extensive, it’s best to replace the entire extension cord.
Q. Can I use an extension cord for a high-powered appliance like a refrigerator or air conditioner?
A. No, it’s not recommended to use an extension cord for high-powered appliances as it can lead to overheating and fire hazards. Instead, it’s best to use a dedicated outlet or have a licensed electrician install an outlet near the appliance.
Q. Can I use an indoor extension cord for outdoor use?
A. No, indoor extension cords are not designed for outdoor use as they are not weather-resistant and can be damaged by rain or extreme temperatures. Always use outdoor extension cords for outdoor use.
Q. How do I properly store an extension cord?
A. To properly store an extension cord, coil it up neatly and secure it with a twist tie or cord reel. Avoid storing it in damp or hot locations, as this can damage the insulation and wires of the cord.
Conclusion
Wiring an extension cord plug may seem challenging, but with the right tools and knowledge, it can be a simple and safe task. Always follow the correct wiring diagram and take the necessary precautions to ensure your safety and those around you. Remember to use only high-quality extension cords that are appropriate for your appliance’s power requirements.
