What is a three prong extension cord called?

NEMA 5-15R: Three-prong receptacle.





This will be what you would typically see in your home (USA & Canada) as a power outlet or on the female end of a power extension cord.

Do they make extension cords with 3 prongs?

DEWENWILS 3 Foot Extension Cord, 16 AWG SJTW Weatherproof Power Cable for Indoor Outdoor Use, 3 Prong Grounded Outlets Plugs, ETL Listed, White, 2 Pack.

What is the female end of an extension cord?

You cannot have an extension cord with two female ends. It wouldn’t make any sense. The female connector of an extension cord is a socket that receives the male connector of an appliance.

Why do extension cords have 3 outlets?

Standard extension cords are available with either two or three prongs. One prong is “hot,” the second is “neutral,” and the third serves as a path to the ground wire. This third prong drastically reduces the risk of shock and electrical fires by giving power surges a safe place to dissipate.

Are all three prong cords the same?





Yes…. they are all IEC cables and they are interchangeable. Just makes sure that stuff like power amps that draw lot’s of current have the ones with heavier gauge wire in them.

Can I plug a 2 prong cord into a 3 prong extension cord?

You can plug a 2-prong plug into a 3-prong extension cord in the same way you would a 3-prong plug. But if you want the added safety of a third prong, you can use a 2-3 prong adapter. These devices have a small grounding prong that can be connected to a grounding source.

Is it safe to use a 3-prong plug in a 2-prong outlet?

Using a ground plug adapter for a three prong cord and a two slot outlet with older electrical systems that do not have a dedicated grounding wire will lead to potential shock. A true grounding system is the safest way to go, and is required by code in all new construction.

What is a 3 pin plug?

3 pin plugs are designed so that mains electricity can be supplied to electrical appliances safely. A 3 pin plug consists of three pins (hence the name). Each pin must be correctly connected to the three wires in the electrical cable. Each wire has its own specified colour so as it can be easily identified.

Which way should a 3-prong outlet be installed?



The electrical code allows outlets to be installed with the ground plug hole facing up, down or sideways. It’s up to you, there is no standard electric outlet orientation. So that means there really is no such thing as upside down outlets. One way isn’t safer than the other — as long as the outlet is wired correctly.

Why are 3 prong outlets upside down?

Electricians may position the outlet in an upside-down position so that you can quickly identify the switch-controlled receptacle. Since it stands out visually to most people right away – it provides convenience to the occupants to easily remember which outlet is switch controlled.

Why are outlets upside down in hospitals?

Because if a cord or wire were to fall down on a partially plugged in right-side up outlet you would short out between the hot and the neutral. When the outlet is “upside down” in the above situation the wire would touch ground first.

What is code for installing electrical outlets?



The US National Electrical Code, Section 210.52, states that there should be an electrical outlet in every kitchen, bedroom, living room, family room, and any other room that has dedicated living space. They must be positioned at least every twelve feet measured along the floor line.

What is code height for electrical outlets?

Electrical receptacle outlets on branch circuits of 30 amperes or less and communication system receptacles shall be located no more than 48 inches (1219 mm) measured from the top of the receptacle outlet box nor less than 15 inches (381 mm) measured from the bottom of the receptacle outlet box to the level of the …

How high should outlets be off the ground?

about 12 inches

Standard Height for Outlet Boxes
The standard height for wall outlet boxes is about 12 inches from the top of the floor covering to the bottom of the receptacle box (or 16 inches to the top of the box).

How many plugs should be in a room?



According to US regulations, no single point measured along the floor line of the room walls should be more than 6 ft away from an electrical outlet. This means that a standard, 12 x 14 ft room needs at least 4 to 6 electrical outlets, depending on the wall space.

Can you put outlets and lights on the same circuit?

Yes, you can. The average home uses an indoor distribution board that houses the breakers of the majority of circuits in the home. A circuit controlled by a 15A circuit breaker (which a lot of contractors use for general lighting) can also accommodate outlets.

How often should outlets be replaced?

Outlet and wire degradation – Outlets and the wires behind them can age in as little as five years. This can make them quite susceptible to harm. Over time, wires can settle, and this changes the way they make contact. If the changes are just right, they can cause sparking, arcing and fires.