Extension cords are a convenient way to extend the reach of electrical outlets in your home or office. Many people opt for cheaper dollar store extension cords as an affordable alternative to more expensive name brand cords. But are these bargain extension cords actually safe to use?
The Potential Dangers of Cheap Extension Cords
There are some potential risks associated with using cheap dollar store extension cords:
- Lower quality materials – Cheaper cords may use lower grade PVC insulation or lower copper content in the wiring which can present a fire hazard.
- Lack of safety features – Pricier extension cords often have features like lighted plugs, polarized plugs, and circuit breakers. Dollar store cords frequently lack these safety enhancements.
- Poor wire gauge rating – Wire gauge (the diameter of the internal metal wire) is closely tied to the amp rating and capacity of the cord. Dollar store cords often have thinner wire gauges unable to handle higher electrical loads.
- Questionable manufacturing – Dollar store cords are mass produced cheaply, often in factories with less stringent quality control and safety testing.
Key Extension Cord Safety Tips
If you do opt to use a dollar store extension cord, there are some basic safety tips to follow:
- Never exceed the rated wattage – Don’t overload cords with appliances that draw more power than the rating. This can cause overheating.
- One appliance per cord – Plugging multiple devices into one extension cord can easily overload it. Use a single cord per appliance.
- No permanent connections – Extension cords are designed for temporary, occasional use. Don’t use them as permanent power supplies.
- Indoor use only – Only use household extension cords indoors. Outdoor cords are rated to withstand weather and outdoor hazards.
- Check for damage – Inspect cords for cracked insulation and loose plug connections which increase fire risk.
- Proper gauge and length – Match the cord’s wire gauge rating to the expected electrical load. Also avoid excessive cord lengths which can cause voltage drops.
- Keep coiled when not in use – Unused cords should be neatly coiled to avoid tripping hazards.
What to Look for in a Quality Extension Cord
For a safer and longer lasting extension cord, consider the following features:
- Polarized plug – Prevent accidental shocks by looking for a cord with one prong wider than the other to correctly match electrical outlet polarity.
- Illuminated plug – Lighted end connectors make cords easier to plug in and unplug in low light conditions.
- Built-in circuit breaker – Resettable circuit breakers cut power if the cord is overloaded before overheating can occur.
- Outdoor rating – Outdoor extension cords have heavier duty insulation to withstand moisture, UV rays, and rugged use.
- High visibility – Bright colors like orange or yellow make cords easier to avoid tripping over.
- Heavy duty gauge – 12-16 gauge wires are best for powering high draw appliances like power tools or AC units.
- UL listing – Extension cords listed by Underwriter’s Laboratories have undergone standardized independent safety testing.
Top Extension Cord Safety Standards
These leading organizations and standards determine specifications and testing procedures for safe electrical extension cords:
- UL – Underwriters Laboratories sets UL 817 standard for cord safety ratings.
- ETL – Intertek’s ETL certified mark indicates a cord meets North American safety standards.
- CSA – Canadian Standards Association tests cords to CSA C22.2 standards for Canadian & US markets.
- CE – The European CE mark signifies compliance with EU low voltage safety directives.
- RoHS – Cords meeting Restriction of Hazardous Substances limits have eco-friendly lead-free wiring.
- Hi-visibility orange – International Safety Equipment Association standard for improved visibility cords.
Recommended Wire Gauges by Intended Use
Selecting the proper wire gauge rating is crucial to extension cord safety. Thicker wires are rated for higher amp loads. Here are typical gage recommendations by application:
| Device | Minimum Wire Gauge |
|---|---|
| Phone chargers, TVs under 48′′ | 18 gauge |
| Vacuums, power tools, window ACs | 16 gauge |
| Major appliances, outdoor power equipment | 14 gauge |
| High draw devices like freezers or pumps | 12 gauge |
When to Replace an Old Extension Cord
Here are some indicators that it may be time to retire an aging or damaged extension cord:
- Fraying, cracked, brittle or punctured outer insulation
- Exposed inner wiring
- Loose or faulty connections at either end
- No longer holds plugs snugly in place
- Significant outer cord damage from being crushed or sharply bent
- Cord gets abnormally warm during use
- Intermittent operation or flickering lights when used
Conclusion
Dollar store extension cords may not always adhere to the strictest safety standards, but they can be used wisely. Carefully inspect cords for damage, match their ratings to your electrical appliances, and avoid permanent or outdoor use. Replacing worn out older cords can also keep your home and devices safe. Opting for UL certified cords with enhanced safety features is worth the extra investment for heavy duty or outdoor conditions. With proper use and awareness of limitations, even budget extension cords can be a safe option for most basic indoor applications.