Can You Use A Sewing Machine With An Extension Cord?
Sewing machines are a staple appliance in many households. They allow you to mend clothes, craft projects, and even start a small business altering garments or creating custom apparel. But what about when you need to use your sewing machine in a location that doesn’t have a nearby outlet? This is when an extension cord comes in handy.
An extension cord can provide power to your sewing machine from a distant outlet. However, there are some important factors to consider when using an extension cord for a sewing machine. Choosing the right cord and following proper safety precautions will allow you to expand your sewing capabilities.
In this comprehensive guide, we’ll cover everything you need to know about using an extension cord with your sewing machine.
What to Consider When Using an Extension Cord with a Sewing Machine
There are a few key factors to evaluate when selecting an extension cord for your sewing machine:
- Cord length – Choose a cord length that reaches your sewing machine without excessive slack. Excessive cord length can increase fire and tripping hazards.
- Cord gauge – The gauge refers to the thickness of the internal wires. A higher gauge number indicates a thinner wire. For most sewing machines, a 14 or 16 gauge cord should suffice.
- Amperage rating – Check your sewing machine’s power rating and match it to an appropriately rated extension cord. Using an under-rated cord can cause overheating.
- Safety approvals – Opt for an extension cord approved for indoor use with markings from safety organizations like UL or ETL. Avoid worn or frayed cords.
- Polarized plug – Polarized plugs with one prong wider than the other are safest since they correctly maintain electrical polarity.
In addition to choosing the right cord, it’s also critical to follow safety best practices when using an extension cord for your sewing machine.
Best Practices for Safe Use of an Extension Cord with a Sewing Machine
Using an extension cord with your sewing machine opens up your sewing possibilities. But make sure you adhere to the following safety guidelines:
- Avoid overloading outlets – Plugging too many high-wattage appliances into one outlet via an extension cord can risk overheating and fire.
- Secure the cord – Use tape or cord covers to secure the extension cord firmly along its length to prevent tripping hazards or cord damage.
- Unplug when not in use – Make it a habit to unplug your sewing machine when it is not being used. Accidental start-ups are a risk.
- Inspect regularly – Periodically inspect the extension cord for any damage like fraying or cracked insulation. Discard damaged cords.
- Keep cord clean and dry – Don’t allow the extension cord to come into contact with water or excessive dirt. Wet cords are very dangerous.
- Don’t modify the cord – Avoid splicing, cutting, or modifying the extension cord in any way. This voids the safety rating.
- Avoid excessive loads – Don’t use lightweight household extension cords for heavy industrial sewing machines. Match cord ratings.
Why Extension Cords Are Discouraged by Some Manufacturers
Some sewing machine manufacturers recommend against using extension cords with their machines. There are a couple reasons for this caution:
- Power fluctuations – Extension cords can sometimes cause small fluctuations in power flow. Some computerized sewing machines are sensitive to unstable power delivery.
- Safety liability – Since extension cords pose some safety risks if used improperly, manufacturers minimize liability by recommending against their use.
However, by selecting the proper cord and following safety advice, these concerns can usually be avoided. The convenience of using an extension cord will outweigh the small risks for most sewists.
Signs You Need a Better Extension Cord for Your Sewing Machine
Here are some signs that indicate it’s time to upgrade the extension cord you’re using with your sewing machine:
- The cord becomes warm or hot during use
- Your machine runs slowly or lacks power
- The safety circuit breaker trips frequently
- You notice lights dimming when the machine starts operating
- The cord has any frays, cracks, or exposed wiring
Any of these are clues that the extension cord cannot properly handle the electrical load of the sewing machine.
Can You Use an Extension Cord with a Vintage Sewing Machine?
Vintage sewing machines from over 50 years ago were designed to plug directly into wall outlets, so using an extension cord does introduce a degree of risk.
That said, as long as you choose a heavy gauge extension cord no longer than 6-10 feet, it should be safe for most vintage machines. Any longer than 10 feet is not recommended.
Pay close attention for signs of overheating and make sure to unplug the machine when not in use. Avoid leaving a vintage sewing machine plugged into an extension cord unattended.
Troubleshooting Sewing Machines Used with Extension Cords
If you notice your sewing machine acting up when powered via an extension cord, here are some things to try:
- Use a heavier gauge (thicker) extension cord
- Use a shorter length extension cord
- Make sure the cord is approved for indoor use only
- Inspect that all connections are secure
- Reset the machine and allow it restart and recalibrate
- Try a different outlet in case the circuit is overloaded
- Test the machine by plugging directly into a wall outlet
- Contact the manufacturer if issues persist after directly plugging into a wall outlet
In many cases, an improperly rated or faulty extension cord is the root of the problems. Replacing the extension cord solves the issues.
Safety Tips When Using an Extension Cord for Your Sewing Machine
To safely use an extension cord for your sewing machine, keep these safety tips in mind:
- Keep it dry – Never run the cord through puddles or wet grass. Use a cord cover if needed.
- Use a short cord – Long extension cords increase risk of voltage drops and overheating.
- No sharp bends – Avoid tightly wrapping the cord or bent angles that can damage wiring.
- Indoor rating only – Don’t use outdoor-rated extension cords inside as they pose a fire risk.
- Mount it off the floor – Mount the cord off the floor to prevent tripping hazards or damage.
- Watch cord temperature – If the cord feels hot during use, switch to a higher rated cord.
- Replace damaged cords – Inspect frequently and replace at first sign of fraying or cracks.
- Unplug when not in use – Always unplug appliance cords when not in use to improve safety.
Frequently Asked Questions
Can you use any extension cord for a sewing machine?
No, you need to match the cord to the power demands of the sewing machine. Using an under-rated extension cord can damage the motor or cause unsafe conditions.
What gauge extension cord should be used for a sewing machine?
For most home sewing machines, a 14 or 16 gauge extension cord is recommended. Larger industrial machines may require a heavier 12 gauge cord.
Can I use an extension cord with a computerized sewing machine?
You can use an extension cord with a computerized sewing machine as long as you choose a heavy enough gauge and short length. Avoid excessive lengths over 10 feet.
Is it safe to use a household extension cord for a sewing machine?
Standard 16 gauge household extension cords are usually fine for sewing machines under 100 watts. Higher wattage machines may require a computer or appliance-rated extension cord.
Can extension cords cause a sewing machine to burn out?
It’s unlikely, but inadequate extension cords that overheat can potentially damage sewing machine motors and circuit boards over time in some cases.
The Bottom Line
With proper precautions, using an extension cord with your sewing machine is convenient and safe. Ensure you use a heavy enough gauge cord of the shortest length necessary. Follow all safety practices and inspect cords routinely for damage.
Using quality extension cords within safety guidelines gives you maximum flexibility and expands the range of your sewing capabilities. Just be vigilant and exercise common sense precautions whenever using an extension cord.