RV Extension Cords

What Are RV Extension Cords?

An RV extension cord is a heavy-duty power cable that allows you to extend the reach of your RV’s power supply when the built-in cord is not long enough to reach the campground’s power pedestal or electrical outlet. These extension cords are specifically designed to handle the electrical load that RVs require and are built with durable materials to withstand outdoor elements like moisture, UV rays, and temperature changes.

An RV extension cord typically has a male plug that connects to your RV’s power inlet and a female plug that connects to the power pedestal or electrical outlet at the campsite. They are designed to carry higher electrical loads and are equipped with reinforced insulation to prevent overheating and reduce the risk of electrical fires.

Why You Need an RV Extension Cord

While many RVs come with a built-in power cord that can reach most standard electrical outlets at campsites, there are situations where an extension cord is necessary. Here are a few reasons why having an RV extension cord is essential:

1. Increased Flexibility at Campsites

Campgrounds and RV parks often have varying distances between the electrical pedestal and the RV’s power inlet. In some cases, the built-in power cord that comes with your RV may not be long enough to reach the electrical outlet. An RV extension cord provides the flexibility to park your RV wherever you prefer, without worrying about whether or not the power cord will reach.

2. Access to Remote Campsites

If you are boondocking or staying at a campsite that doesn’t offer a direct electrical hookup, an RV extension cord can help you connect your RV to a power source if one is available nearby. This is particularly useful when there are no dedicated RV hookups and you need to extend the distance between your RV and the available power supply.

3. Enhanced Power Flexibility in Various Environments

Whether you’re in a park with limited hookup options or a remote location where you need to use a generator, an extension cord allows you to easily connect your RV to an alternative power source. This can be helpful for off-grid adventures where you may need to use a generator or other non-standard power source.

How to Choose the Right RV Extension Cord

Choosing the right RV extension cord is essential for ensuring the safety and efficiency of your RV’s electrical system. With so many options available, it’s important to consider the following factors when selecting an extension cord for your RV.

1. Cord Length

The length of your RV extension cord depends on the distance you need to cover. A standard RV power cord is usually between 25 to 50 feet, but if the power pedestal is farther away, you might need an extension cord that’s longer. When choosing a length, consider how far you typically park from the power source at campsites. Keep in mind that longer cords can be bulkier and harder to manage.

Common Lengths of RV Extension Cords

• 25 feet: Suitable for most campsites with power pedestals relatively close to the RV.
• 50 feet: Ideal for medium-range distances between the power pedestal and your RV.
• 100 feet: Best for remote or large campsites, allowing you to park your RV farther from the power outlet.

2. Cord Gauge (Wire Size)

The gauge of an extension cord refers to the thickness of the wire inside the cord. The lower the gauge number, the thicker the wire, which allows it to handle higher electrical loads over longer distances without overheating. Choosing the correct gauge is crucial for safely powering your RV.

• 12 Gauge: Typically used for short distances or smaller RVs with lower power demands.
• 10 Gauge: A good choice for medium to large RVs or for longer distances.
• 8 Gauge: Recommended for high-power demands or if you’re using the extension cord for longer distances (50 feet or more).
• 6 Gauge: The thickest wire and best for heavy-duty electrical needs or very long distances, often seen in commercial RV applications.

Choosing the Right Gauge

• For most RVs, 10-gauge or 12-gauge cords are sufficient for general use, especially for distances of up to 50 feet. However, if your RV has high-power demands (such as air conditioning units, space heaters, or other appliances), opt for an 8-gauge or 6-gauge cord.

3. Power Rating (Amps)

The power rating, typically measured in amps, refers to how much electrical load the extension cord can safely carry. It’s important to match the power rating of the cord with the electrical requirements of your RV and the power pedestal.

• 30 Amps: The most common power requirement for RVs. Most RVs with 30-amp hookups use a 30-amp extension cord.
• 50 Amps: Larger RVs or RVs with more electrical appliances, including multiple air conditioning units, may require a 50-amp extension cord.

Ensure that the extension cord you choose has an amp rating that matches the electrical needs of your RV and the power supply at the campsite.

4. Weather Resistance and Durability

Since your RV extension cord will often be exposed to the elements, it’s essential to choose a cord with weather-resistant materials that can withstand harsh conditions. Look for extension cords that feature durable, UV-resistant, and water-resistant coatings to protect the wire from moisture, sun damage, and freezing temperatures.

• Heavy-duty jackets made from thermoplastic or rubber materials provide added protection against wear and tear.
• Weatherproof seals and locking plugs ensure that your extension cord remains secure and free from moisture or debris, which can be harmful to the connection points.

5. Type of Plug (Male and Female Connectors)

Ensure that the plugs on your extension cord are compatible with your RV’s power inlet and the power pedestal at the campground. RV extension cords typically come with either 30-amp or 50-amp plugs.

• 30-amp cords feature a three-prong plug (with one prong being a ground) and are compatible with most RVs.
• 50-amp cords have a four-prong plug, which can carry more power and is typically used for larger RVs or those with higher electrical demands.

It’s essential to confirm that both the male plug (that connects to the RV) and the female plug (that connects to the power pedestal) match the outlet specifications for your RV’s power requirements.

RV Extension Cord Maintenance and Safety Tips

An RV extension cord is an essential part of your electrical system, so maintaining it properly is crucial to ensure its longevity and safety. Here are some tips to help you care for your extension cord and use it safely.

1. Store the Cord Properly

When not in use, always store your RV extension cord properly to prevent damage. Avoid leaving the cord exposed to the sun or letting it sit on the ground where it could be stepped on or run over by your RV. If possible, use a cord reel or coil the cord neatly to avoid kinks or tangles.

2. Inspect the Cord Regularly

Before each trip, visually inspect your extension cord for signs of damage such as fraying, exposed wires, or cracked insulation. Any visible damage to the cord should be addressed immediately, as it could lead to electrical hazards.

3. Avoid Overloading the Cord

Never overload your extension cord by running too many high-power appliances at once. Make sure the total wattage of the devices you’re using does not exceed the amp rating of your extension cord.

4. Use GFCI Outlets

Whenever possible, connect your RV extension cord to a GFCI (Ground Fault Circuit Interrupter) outlet. This type of outlet helps protect against electrical shocks, which can occur when moisture comes into contact with the electrical system. Many campgrounds and RV parks have GFCI outlets installed, but if yours doesn’t, consider investing in a portable GFCI unit for added safety.

5. Protect Your Cord From Moisture

If you’re using your RV extension cord in wet conditions, such as during rain, it’s essential to elevate the cord off the ground and prevent water from pooling around the connectors. This will reduce the risk of electrical short circuits or damage to the cord.