Monthly Archives: January 2018

What is the Difference between AC and DC power?

electric polesIn today’s inventory of power choices of AC, DC, car phone chargers, rechargeable batteries, wireless chargers, solar cells … the list keeps growing. No longer is it only a choice between plugging it into the wall or going to the corner store to buy a few AA batteries. Have you often wondered what makes AC and DC power so different from each other?

AC = Alternating Current, DC = Direct Current.

Direct Current is the tried and true way to receive power. It can always be available, as long as you remember to have enough of them available. It is safe to use with no accidental surprises or storm delays.

Alternating Current allows us to enjoy the modern convenience of electrical outlets in our home and anywhere that we can plug into along the way. It requires no work in advance. It is available when we need it.

While the power of DC is a set amount that always flows in one direction, AC (alternating current) is constantly changing the direction of the flow of energy. This is what allows vast amounts of electric to travel from power stations, through transformers and finally into our homes.

Magic of Electricity

I hope we all know the perils of a downed power line. It is a prime example of the possible dangers of electricity. It is with the use of alternating current that we are able to harness that power.

High voltages of power are delivered from power plants to a transformer. That “transforms” that huge amount of voltage into reasonable voltages that can be used in our homes with the use of alternating current. That is why, when a transformer blows, the electricity can destroy the appliances in your home—they received too much electricity.

Outlets in U.S. homes are 120-volt and 60-cycle. 60-cycle means the current alternates direction 60 times per second. This enables the AC to be able to then distribute that power into small manageable amounts.

While electricity is truly a wonder of science, it can also be a home nightmare when not treated with respect. Douthit Electric has been providing Charlotte with quality electrical services since 1990. When you need help with your electrical service or installation, check out our money saving coupons and give us a call!

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Electrical Space Heater Safety

It’s winter and it’s cold … even here in Charlotte. If you have added electrical space heaters to those certain rooms that need a bit more warmth, here’s a few tips to help keep you and your family a little safer.

According to, heating equipment is the second leading cause of home fires in the United States. For that reason alone, it is a good idea to take all the precautions necessary to keep your home safe.

1. When you took that heater out of storage, did you inspect it thoroughly? Never use a heater that shows any sign of damage to its cord or plug.

2. Space heaters should be located at least 3 feet from anything that can burn. And let’s face it, that’s includes most things, so take special notice of the location you decide to place it.

3. Don’t use extension cords. Plug the heater directly into the outlet. Yes, we know it is tempting, but consider how much power it takes to run the heater through a cord that was probably designed for much smaller things.

4. If you have children or pets, identify their common play area and place the heater a safe distance.

5. A space heater should never be left on without supervision. They are meant to provide warmth on a temporary basis and do not have all the added safety features of a long-term heating unit.

A space heater can be a welcomed addition on an unusually cold day. It can provide extra heat to exactly where you want it. With certain precautions it can be just what you’re looking for in the room you spend time in.

Douthit Electric has been providing Charlotte with quality electrical services since 1990. When you need electrical repair or installation, check out our money saving coupons and give us a call!

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