answersLogoWhite

0

Why do outlets have 3 holes?

Updated: 12/21/2022
User Avatar

Wiki User

9y ago

Best Answer

Live, neutral and earth. The supply is carried on the live and neutral, and the earth normally carries no current, but if there is a fault the earth is there as a safety factor and in some conditions it carries enough current to blow the fuse and make the circuit safe.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do outlets have 3 holes?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why are there holes in the prongs?

The metal contacts inside very old electrical outlets had bumps which interlocked with the holes in the plug. This kept the plug from easily falling out of the outlet. Modern outlets are simply designed to have more friction.Modern outlets have "bumps" or detents that serve this "locking" purpose.Manufacturers of certain items may also use these holes as a lockout by attaching a label etc. through one of the holes.For instance a warning label stating "WARNING! Before plugging in this device, be sure to ". Since the warning label must be removed to plug in the device, it is much more likely to be noticed and read than if it were on page 1 of the instructions.


Can two electrical outlets be in same stud wall cavity in a fire wall.?

I`m not an electrician but have done some commercial renovations and I believe you should not have holes in a bay on both sides of the wall. if the outlets or switches are on the same side its ok. but check with your electrical inspector.


What is a 3 prong outlet?

Simply put, it is any electrical outlet the has three holes that the female end plugs into. What this is referred to most of the time (but not always) is a regular 110V outlet. Older outlets had only two holes, one for the hot, one for the neutral. All newer installations have the third hole for the ground wire.


How many trap holes can you have in a Yu-Gi-Oh deck?

You can have 3 trap holes and 3 bottomless trap holes in a yugioh deck. That is, if you aren't playing in tournaments.


If 3 pretzels have three holes how much holes are in 16 pretzels?

16


What is the collective noun for outlets?

The collective noun for retail outlets is a chain of outlets. The collective noun for electrical outlets is a bank of outlets.


How many holes does a Gucci belt have?

An interlocking G's Gucci belt has 3 holes


What is the total 3 holes and 1 over 4 plus 2 hole and 3 over 4?

The total is 6 holes.


What is 3 holes time 3 over 9?

1


3 h in a bb?

3 holes in a bowling ball


What is the ISBN of Holes novel?

The ISBN of Holes - novel - is 978-0-440-41480-3.


Do airplanes have plug outlets?

It depends on the model of the plane that you will fly in. Some of them have outlets, but only in the front of the plane. Some of them have outlets on every 3-5 seats, and some of them may not have outlets at all unless it is for the flight attendants to plug in a coffee pot or something. Usually only first class gets the outlets, it is just one of those incentives to pay a lot of money for a first class ticket.