Home Improvement Information

What Are Circuit Breakers?


Circuit Breakers are devices that stop the electrical current of a circuit in the event of excess or very high voltage. Circuit breakers are handy, not only because they can protect against electrical fires but also because they can be reset. When a fuse blows out, it must be replaced each time, whereas circuit breakers are easily reset when tripped.

Each appliance in your home receives electrical currents by way of electrical circuit breakers. Circuit breakers are considered to be either main or individual. The main circuit breaker controls power to the entire house while individual circuit breakers transmit power to individual appliances.

Electrical circuit breakers are probably the most important safety feature in a building. A circuit breaker measures the amount of heat produced by the current or by the magnetic field created by the small coil inside the breaker. When the current becomes too high, the breaker will cut off the circuit to stop it. Fuses serve the same function but can only be used once. Anyone who has blown a fuse can tell you it is much easier to have circuit breakers.

Electrical circuit breakers are also useful for shutting down power to the entire house. If you need to do some electrical maintenance, either for the entire structure or individual electrical wires, shutting down the main breaker can be a safety tool. Although electrical waves are invisible, we all know they have great potential danger. You should label each individual electrical circuit breaker so it is easily accessible for future use.

Direct current, or DC circuit breakers, are commonly used in automobiles. DC circuit breakers, unlike alternate current (AC) breakers, only deliver currents in one direction. These types of circuit breakers are a renewable energy delivery source, and special precautions should be taken when using them.

Since all batteries have the capability of producing enormous amounts of energy when short-circuited, care should be taken to properly install the breaker, fuse and disconnects in a vehicle. Autos should have additional protection against over current for the battery and each of the branch circuits. Vehicle fires sometimes result when the owner does not take proper precautions.

DC circuit breakers often have plastic beads inside of the fuse. When the current becomes too heavy, these plastic beads can melt and fill the void inside the fuse and prevent an arc from forming. If the current is very heavy this can cause electrical fires. While DC circuit breakers are effective in preventing damage from an overload of current, they are only effective to a certain degree. Any power source using DC technology should have a backup master fuse to protect the vehicle against total short-circuit.

Circuit Breakers Info provides detailed information about circuit breaker panels, circuit breaker manufacturers, plus advice on how to replace and install circuit breakers and where to buy used and surplus circuit breakers. Circuit Breakers Info is the sister site of Electricians Web.


MORE RESOURCES:

The Associated Press

Home improvement retail sinks on data
Forbes, NY - Nov 19, 2008
AP , 11.19.08, 03:13 PM EST Shares of home improvement chains dipped Wednesday after the federal government said construction of new homes and apartments ...
How home improvement chains fared in 3rd quarter The Associated Press
Home Depot Posts 31% Fall in Net Income, Cuts View Wall Street Journal
Tough economy takes toll on Home Depot Atlanta Journal Constitution
Stockhouse - CNNMoney.com
all 529 news articles


Home Improvement Q&A
Connecticut Post, CT - 1 hour ago
By Alan J. Heavens Q: I have a composite deck, light gray in color, and, even though I clean it two times a year with a power washer, there still is this ...


Sector roundup: Solar, home improvement
Forbes, NY - Nov 19, 2008
CHICAGO (AP) - Shares of home improvement chains dipped Wednesday after the federal government said construction of new homes and apartments slowed at a ...


Ahead of the Bell: Home improvement retailers
Forbes, NY - Nov 19, 2008
The home improvement retailers are part of a sector that has "competitive dynamics, stable gross margins through the downturn, and clear cyclicality ...


Home improvement Q&A
Columbus Ledger-Enquirer, GA - Nov 20, 2008
(Want Alan J. Heavens' advice on a home-improvement project or purchase? E-mail him at aheavens@phillynews.com or write to him at The Inquirer, Box 8263, ...


AG Van Hollen: Home improvement company and owner charged with ...
Wisbusiness.com, WI - Nov 19, 2008
The complaint alleges that in November, 2005 defendants entered into a $55250 home improvement contract with a Menasha couple promising, among other things, ...


Economic Downturn Sparks New Home Improvement Trend
MarketWatch - Nov 18, 2008
With the harsh reality of uncertain economic times, and the average consumer shouldering $10000 or more in credit card debt, a new trend in home improvement ...


Best Home Improvement Show Clips
PRLog.Org (press release), Romania - 7 hours ago
PRLog (Press Release) – Nov 21, 2008 – We selected the best Home Improvement Show clips showing Tim “the tool man” Tailor and his assistant Al. Home ...


Canada.com

Endeavour Docks at Space Station on Home-Improvement Mission
Bloomberg - Nov 16, 2008
16 (Bloomberg) -- NASA’s space shuttle Endeavour docked with the International Space Station today just after 5 pm New York time on a home-improvement ...
Video: Space Shuttle Endeavour Blasts Into Night Sky AssociatedPress
Endeavour to launch on 'home improvement' flight Spaceflight Now
Shuttle Endeavour docks with ISS on 'home-improvement' mission RIA Novosti
EastDay.com - Space Fellowship
all 5,713 news articles


Law to protect homeowners from shoddy contractors
Indiana Gazette, PA - 1 hour ago
The Home Improvement Consumer Protection Act, sponsored by Sen. Robert “Tommy” Tomlinson, of Bucks County, will require most contractors to register with ...

Home-Improvement - Google News

home | site map
© 2006