The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Usually, yes: a two-prong plug can fit the two-slot part of many three-prong extension-cord receptacles. But that fit does not ground the appliance. Use the cord only if the appliance maker permits it and its ratings and indoor/outdoor marking suit the device and location. Never remove a ground pin or use an adapter to bypass grounding. If grounded equipment must be used at a two-slot wall outlet, have a qualified electrician assess the installation.
Does a two-prong plug fit a three-prong extension cord?
Many three-prong extension-cord receptacles have two slots that accept a two-prong plug. A two-prong plug may be polarized, with one blade wider than the other, so it fits only one way. Do not force a plug that does not fit; check the plug and cord instructions instead.
Fit is not the same as grounding. A two-prong plug has no grounding pin, so it does not connect the appliance to the extension cord’s grounding conductor. The third slot in the cord’s receptacle cannot create a grounding connection through a two-prong plug. CPSC distinguishes two-conductor cords without a ground from three-conductor cords with a grounding conductor in its home wiring hazards guide.
Is it safe for your appliance?
Some appliances are designed to use two conductors and do not have an equipment-grounding connection. Others are designed to require grounding; a two-prong connection is not a substitute for that required path. This general distinction cannot determine the design or condition of a particular appliance, cord, outlet, or installation.
Free tools Windows power users keep installed
One-click scans. No signup required.
#1 Best Overall
- Powerful Power: 16 gauge extension cord 6 ft NEMA 5-15P/R with pure copper conductor; black extension cord 6ft can provide 13A 125V 1625W of stable power; ETL listed; 6 foot extension cord indoor suitable for a variety of household appliances to meet daily needs
- Safety Protection: Strain relief design at the end of extension cord 6 feet; each 3 prong extension cord has been tested with 2000+ bends to ensure a solid connection with the equipment and reduce the risk of leakage; black extension cord 6ft plug is designed with rounded corners; can disperse the impact when falling; drop resistant and wear-resistant; suitable for carrying in mobile offices
- Flexible And Durable: Black extension cord 6ft is soft, flexible and durable; 6 foot extension cord 3 prong adapts to a variety of home and office environments; ideal for indoor extension cords
- Easy To Use: extension cord 6 foot plug socket with non-slip design on both sides; easy to plug and unplug; extension cord 6ft length is perfect for indoor spaces; 6 ft extension cord extend the range of space for equipment use, office life at ease
- Indoor Applications: Black extension cord 6 feet easily meets a variety of power needs in home or office; 6 ft extension cord is ideal for devices such as coffee makers, fans, juicers, laptops or televisions
Before using an extension cord, check the appliance maker’s directions and the cord’s markings. The cord must be suitable for the appliance’s electrical load and the conditions where it will be used. ESFI recommends choosing cords certified by an independent testing laboratory and using polarized and/or three-prong cords where appropriate. See ESFI’s extension-cord safety tips.
Check these cord details
- Current and voltage rating: The cord must meet the appliance’s requirements.
- Indoor or outdoor marking: Use a cord rated for the location and exposure; an indoor cord is not a substitute for one intended for outdoor use.
- Length and conductor size: Choose a suitable cord rather than assuming any cord will do.
- Plug fit and polarization: Do not force a plug or alter its blades.
- Condition and construction: Avoid damaged insulation, plugs, or strain relief, and look for independent laboratory certification. CPSC identifies wire size, strain relief, polarization, continuity, and, where applicable, outlet covers or outdoor jackets among cord safety characteristics in its extension-cord guidance.
Do not bypass a grounding connection
If equipment has a three-prong plug or otherwise requires grounding, keep a continuous grounding path. Do not remove the ground pin, use an adapter that interrupts grounding, or connect grounded equipment through a two-prong setup. OSHA’s workplace rule states: “Adapters which interrupt the continuity of the equipment grounding connection may not be used.” That requirement applies in its covered workplace context; it is not a complete set of residential electrical-code instructions. OSHA also describes the equipment-grounding conductor in its flexible-cord guidance.
Rank #2
- 12 IN 1 Surge Protector Power Strip: Features 8 AC outlets, 2 USB-C port, and 2 USB-A ports to give everything you need to power up all of your electrical appliances. The 4-side layout prevents power outlet obstruction, allowing simultaneous use of multi USB outlets and AC ports. Designed with extra space (1.65 inch) between outlets to accommodate even the largest plugs.
- Flat Extension Cord 10 ft: With an ultra thin flat head (only 0.3 inches), our flat plug power strip can easily fit in tight spots and hide behind furniture (sofa / bed / nightstand) with wall-flush alignment; The 45° right angle plug creates extra space for other receptacles below without blocking.
- 8-Point Safety Protection System: Combines 1050 Joules surge protection, 1382℉ fire retarding, 1250W overload protection, 10A over-current protection, and more to protect your appliance and electronics, providing you a safe and reliable indoor charging environment.
- Power Strip with USB C: 2 USB-A (5V/2.4A) and 2 USB-C (5V/3A), with a total USB output up to 15W. This USB charging station can auto-detect charged devices’ power draw and deliver optimal charging speed, compatible with all USB-powered devices like cell phones, earphones, tablets, smart watches, etc.
- Mountable Power Strip Outlet Extender: 2 mounting holes on the back enable this white extension cord for secure wall / desk / counter installation. The space-saving compact design, optimized for apartment / dorm room / home office use with UL-recognized cable and V-0 fire-retardant casing.
OSHA’s construction incident guidance illustrates the hazard of an adapter whose ground wire was not grounded: a grounding path that is absent or discontinuous may fail to provide the intended protection. The example is a warning about grounding failures, not proof that every adapter or every two-prong appliance is unsafe. See OSHA’s construction electrical incident guidance.
If the wall outlet has only two slots
A three-prong extension cord does not make a two-slot wall receptacle grounded. If grounded equipment needs to operate at that outlet, do not treat an adapter as a fix. Ask a qualified electrician to assess the installation and advise on an appropriate solution. OSHA’s guidance concerns covered workplace settings, while the right answer for a home depends on the actual installation and applicable local requirements.
Rank #3
- INCLUDES: 6 foot extension cord in Black; ideal for extending power when needed
- DEVICE COMPATIBILITY: 13 amp/125V power; 16 AWG
- VERSATILE: Use indoors with consumer electronics, tools, media equipment, and more
- EASY TO USE: Plugs into any standard 3-prong power outlet; accepts 2- or 3-prong device plugs
Inspect cords and stop using damaged ones
Do not use an extension cord with damaged insulation, a damaged plug, or other defects that could expose someone to injury. Replace it rather than attempting a makeshift repair. OSHA requires visual inspections of workplace extension cords before use in specified circumstances and removal from service when damage could expose an employee to injury; residential readers should follow the appliance and cord makers’ instructions and applicable local requirements.
Quick Recap
Rank #4
- Powerful Power: Black extension cord 10ft 2 pack can provide 13A 125V 1625W of stable power; Do not use equipment exceeding this power rating; 16 gauge extension cord 10 ft 2 pack NEMA 5-15P/R with pure copper conductor; ETL listed; 2 pack 10 foot extension cord indoor suitable for a variety of household appliances to meet daily needs
- Safety Protection: Strain relief design at the end of extension cord 10 feet 2 pack; each 3 prong extension cord has been tested with 2000+ bends to ensure a solid connection with the equipment and reduce the risk of leakage; black extension cord 10ft 2 pack plug is designed with rounded corners; can disperse the impact when falling; drop resistant and wear-resistant; suitable for carrying in mobile offices
- Flexible And Durable: Black extension cord 10ft 2 pack are soft, flexible and durable;2 pack 10 foot extension cord 3 prong adapts to a variety of home and office environments; ideal for indoor extension cords
- Easy To Use: extension cord 10 foot 2 pack plug socket with non-slip design on both sides; easy to plug and unplug; extension cord 10ft 2 pack length is perfect for indoor spaces;2 pack 10 ft extension cord extend the range of space for equipment use, office life at ease
- Indoor use: The 10 foot black extension cord can easily meet various power needs in homes or offices; the 10 ft extension cord is suitable for devices such as coffee makers, fans, juicers, laptops, or televisions; Do not use with space heaters, microwave ovens, high-power electric kettles, high-power hair dryers, electric hot pots, or similar appliances
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
