Have you ever wondered about the difference between single-phase and three-phase circuits? If you currently reside in North America then you are likely accustomed to single-phase circuit power throughout your home. Although single-phase circuits are popular among residential homes and smaller commercial business buildings, some businesses may consider switching to three-phase circuits in order to reduce long-term electricity costs and improve the efficiency of their building’s electrical power supply. In order to provide you with a better understanding of the difference between single-phase and three-phase circuits, Expert Electric breaks down the difference, advantages and disadvantages of each below:

Single-phase circuits are generally used to power residential homes and smaller business buildings whereas three-phase circuits are common in large industrial buildings that require a more significant amount of electrical power. Not only does a single-phase circuit require a larger electrical current than a three-phase circuit, it is less efficient with its transferal of power. This is because its current only alternates between two wires; therefore, there is a point in the process where the electrical power in a single-phase circuit drops to zero. Since a three-phase circuit transfers the current between three wires, it is more efficient with the transferal of its electrical power and therefore never allows the power to drop to zero. This allows a three-phase circuit to provide electrical power to systems that demand more electricity.

The advantage of implementing a three-phase circuit is cost-savings. Three-phase circuits are more efficient with their transferal of electrical power; therefore, they are capable of powering much more at a lower cost. Office buildings and manufacturing plants can still operate with single-phase circuits although they would be more efficient with their power supply if they made the switch to three-phase circuits. The real difference between single-phase and three-phase circuits can be seen in large data centers and manufacturing buildings. These large facilities require more power to run their operations and will therefore witness greater efficiency and savings by making the switch.

Build Your Future is dedicated to showing America’s youth the rewarding career opportunities available in construction. BYF is once again declaring October “Careers in Construction Month.”

Careers in Construction Month provides an opportunity for industry and schools across the nation to partner locally to host construction career events and programs. With the ever growing need for skilled professionals in the construction industry, there has never been a better time for education and industry to work together to help students build successful construction career pathways.   Construction careers in today’s market are all about high-tech, high-stakes, huge earning potential and the opportunity to travel the world. You might think that a four-year degree is the only path to success, but skilled trades are an option for many.

Fans in the attic? The idea at first may sound odd. We usually think of fans as blowing somewhere in our home where we can feel their effects, like hanging from ceilings or mounted in windows. Few people spend more time in their attic than they absolutely must, so it seems useless to install fans there.

However, attic fans can form an important part of maintaining the overall efficiency of your air conditioning system. If you’ve taken all the steps you can to keep your HVAC system working its best (regular maintenance, duct cleaning, changing the filter, proper insulation), attic fans will take you a step beyond. We’ll explain why putting in attic fans will benefit you.

Attics are both heat traps and heat escape routes. You can use insulation to stop heat from escaping in winter, but what about summer, when heat gathers in the attic and creates excessively high temperatures that will seep into other parts of your home? (Go up into your attic on a hot day and see what it’s like. It can be miserable. You don’t want any of that to get to rooms you actually use.) To stop summer attic heat, you’ll need attic fans.

Attic fans should be wired to a thermostat that will turn the fan on based on the temperature. This saves energy since you won’t have to keep the fan on constantly or continually check on it. The movement of air in the attic will lower the high temperature.

The first benefit is the most obvious: your home will not get as hot during the summer. On average, the temperature in the attic will decrease 50 degrees with a fan, which means a drop of 10 degrees in your house.

This not only translates into comfort, it also means savings on your energy bills. A cooler house requires less work from an air conditioner to cool it. You’ll spend less, and your air conditioner will not receive extra stress that will lead to repairs and possibly an early replacement.

Attic fans will also extend the life of your roof. Rising moisture in your home will get into the roof, eventually creating mold in the insulation and the roof material. In winter, the freezing moisture can be extremely damaging. Attic fans move moisture away and keep it from settling.