One of the most popular tools in any home is the extension cord.  For a long time, rooms would be built with only one or two outlets, creating the need for additional power strips and extension cords as we moved into a more digital world.  As more devices found their way into our homes, the NEC updated standards for home construction to require additional outlets and electrical accessibility in each room.  Unfortunately, most homes still lack the proper number of outlets, and when a cable can’t reach, most of us will reach for an extension cord.

Most of the time, this isn’t a problem.  Extension cords function exactly as their designed to.  When you need a longer cord to place a fan or give a little extra reach to your vacuum cleaner, there’s nothing dangerous going on.  Where extension cords become risky is in their overuse.  Many people buy the longest, cheapest cord they can find and this is where danger sets in.

Electricity and metal have a very interesting relationship.  As current, the flow of electricity over a conductor, increases in a wire, the temperature increases.  Current is also adjusted as resistance increases to keep power at the same level.  When you add wiring to a circuit, the resistance of the wire itself stacks with the rest of the components on that circuit.  While one electrical cord doesn’t add much in the way of resistance, multiple cords will continue to increase the amount of power being used in the system.  As the current increases to keep up with the new demand, the temperature in the wiring also increases.

This relationship is used to great effect in your circuit breaker, where the difference in heat forces a breaker trip that protects your system.  In an extension cord that isn’t designed to handle the load being placed on it, insulation melts and fires can start.

Keep in mind that extension cords are always temporary.  Never use an extension cord for anything permanent.  They are designed to help you reach electricity for a task and nothing more.  When in doubt (or if you hear buzzing coming from the wiring, socket, or circuit breaker) switch to a higher amperage circuit and a lower gage wire for your extension cord (the lower the gage, the thicker the wire and the more current it will be able to handle).

According to the Electrical Safety Foundation International, Guidelines for using an extension cord are as follows:

Remember that the more power you need, the more current you’ll be using.  Any device that includes a motor or heating element will either need an industrial-grade extension cord (power tools) or should not be used with an extension cord at all.

For the best in quality electrical repair work and installations, contact the professionals at Custom Electric!  Be sure to check back here each week for helpful advice, news, and guides or follow us on Facebook and Twitter!

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Smoke detectors are an important part of safety in the home. These cheap little devices can save your home and your life. If your lucky, the only time you’ve heard one go off is when the toast burnt. It’s easy for us to forget to check on them or even forget to test them after purchasing a new home. But they should not only be checked regularly, but require correct installation. Let’s go over some of the basics of having smoke detectors in the home.

Having smoke detectors placed in various locations around your home allows for fast and effective detection. Once the smoke detector siren sounds, it will warn you that there is a potential fire. You can quickly check the nature of the problem and hopefully prevent any further damage. It will also wake you at night before any harm can come to anyone in your home. The siren also helps firefighters quickly locate the fire in the home so they can focus their efforts.

Because smoke rises, smoke detectors are always placed on the roof for ideal detection. There are two common types of smoke detectors, photoelectric and ionization. Photoelectric sensors use a beam of light within the detector to sense any smoke in the air. The beam will shoot in a straight line when the air is clear. In the presence of smoke the light will scatter, this is when the alarm will go off. Ionization detectors use a chamber with a small electrical current. When smoke enters the chamber and the level of ions in the air changes, the electrical current drops and the alarm will sound.

It is recommended that there are smoke detectors on each floor of your home. If doors to rooms are closed often, it is best to have a detector installed in that room. The device should be placed away from rooms that create steam, such as showers or a laundry room, as this steam could trigger the smoke detector. Most smoke detectors use double sided tape to stick the device to the ceiling. You will need to drill the mount to your ceiling and attach the smoke detector to the sticky mount. Ensure that the batteries you use are working properly.

Smoke detector testing should be done on a monthly basis because batteries can die and sensors can become faulty. Each smoke detector will have a button on it to manually sound the siren. Push this button for a few seconds to ensure the siren is working correctly and the batteries are still active. To test the sensor, you can use an aerosol can of smoke to spray into the smoke detector. It may take a couple minutes for the siren to deactivate, as the smoke needs to clear from inside of the chamber first.

Smoke detectors are vitally important to keeping your home and family safe. We can help you to install smoke detectors around your home and position them to give you the best coverage.