Among the more obvious pieces of electrical safety advice you may have encountered is to never saw the third prong off of an electrical plug in order to fit it into a two-prong outlet. But just because we can recognize that as a self-evidently bad idea doesn’t mean everyone knows why it’s dangerous.

Two-prong outlets have only two wires: a hot wire and a neutral wire. But a three-prong outlet also has a ground wire, which is a safe place for unexpected bursts of current to go when they occur. Without that connection between the ground wire and the plug, wild current can go anywhere: into your electrical device, where sensitive components can be destroyed, or worse, into your body. Shock and electrocution are more likely to occur when no ground wire is present.

Moving On Up

Three-prong outlets didn’t become standard in North American homes until the late 1960s, so while modern homes should be in good shape, there are plenty of homes out there with old two-prong outlets.

As a quick fix, you might be tempted to use adapters that convert two-prong outlets to fit three-prong plugs. You should resist the urge to use these so-called “cheater plugs”, however -- the ground wire is there for safety, and simply bypassing it creates a potentially serious hazard.

Instead, you should seriously consider upgrading the outlet if you need to regularly use three-prong plugs in that area. If you live in an older home where most of the outlets are two-prong, this is an upgrade you’ll need to do sooner or later.

When it comes to upgrading two-prong outlets, there are two basic options. The best choice is to have ground wires installed so that the outlets are fully up to the current standard. Unfortunately, this can involve several hours of electrical service and may require some cutting into walls, depending on how many outlets are being upgraded and how the home is configured. It may be a big undertaking, but it’s a quality investment in your home and safety.

A cheaper alternative is to upgrade to a ground fault circuit interrupter outlet, or GFCI. These outlets are capable of shutting themselves off if an electrical shock risk is present, but they won’t protect sensitive electronics from surge damage. The trade-off is that there’s no need to run a ground wire.

Out With the Old, In With the Old?

If you don’t like either of these options but you’re having trouble with a two-prong outlet, it’s technically not a violation of code to replace the outlet with another two-prong version. Just keep in mind that this arrangement leaves both people and electronics vulnerable, so use these outlets with care and consider making a plan to upgrade later.

Ready to upgrade those old outlets? Start the process today by scheduling a no-obligation consultation with your licensed, local electricians.

We wrote the UK and China) have been developing this lighting-based data transmission, which could revolutionize the way we connect to the internet.

One of the advantages of Li-Fi is its ability to function in electromagnetic-sensitive areas such as in aircraft or nuclear power plants, without causing interference. Additionally, Li-Fi signals cannot travel through walls, a welcome feature for many users who wish to increase their digital privacy, although this comes with its obvious drawbacks, such as difficulty in creating “blanket” wireless coverage.

LED light bulbs and fixtures are the best alternatives for many reasons.

LED lights are available in several shades of white. These shades are referred to as a bulb’s correlated color temperature (National Institute of General Medical Sciences, states that, “Circadian rhythms are physical, mental and behavioral changes that follow a roughly 24-hour cycle, responding primarily to light and darkness in an organism’s environment.”

According to writes, “Several studies have documented the importance of light in reducing depression, decreasing fatigue, improving alertness, modulating circadian rhythms, and treating conditions such as hyperbilirubinemia among infants. Further, the presence of windows in the workplace and access to daylight have been linked with increased satisfaction with the work environment.” Windows are the best method of accessing daylight, but cool white LED lights along with the right color temperatures at the right times, can have the same effect on the body.

Warmer color temperatures lead to the release of melatonin, which causes drowsiness. This is appropriate during bedtime hours, but causes problems for those who need to stay awake, such as overnight nurses and doctors. Introducing natural or cool white light to hallways, operating rooms, and nurse stations can help hospital staff, especially overnight workers, feel more alert and energetic.

EPA has a list of cleanup procedures, such as having everyone leave the room, opening a doors or windows, shutting off heat and air-conditioning systems, and other specific instructions.

Fluorescent and incandescent bulbs also emit low doses of UV radiation that can damage not only facility materials but can also damage skin and eyes. According to a CBSLA.com discusses the results of another study that had similar findings. In this article, it is said that, “. . . exposure to the (fluorescent) bulbs could lead to premature aging and cancer.”

Continued UV exposure is also harmful to the eyes. A LED lights won’t flicker or emit any color spikes. Color fluctuations and flicker can cause negative effects, such as headaches and dizziness. When used for hospital lighting, LED bulbs and fixtures can improve overall health and eliminate the possibility of additional health risks posed by fluorescent and incandescent bulbs.

Seeing colors as they truly are is critical in health care environments. Inaccurate color rendering of skin or blood could lead to a misdiagnosis or failure to see signs of infection or jaundice. The spectral graph below can be helpful in understanding the advantage of high-CRI light sources. Lights with a low CRI will show fewer colors while high-CRI lights cover more of the spectrum. A light source’s ability to show more colors increases its accuracy in revealing the true colors of people, objects, and surroundings.

FreemanWhite, a health-care-focused design firm reports, “. . .light fixtures with a high CRI . . .  help caregivers assess rashes, lesions, and skin pigmentation.” They go on to say, “In the interest of avoiding liability claims, better lighting quality can enhance a caregiver’s ability to diagnose correctly, identify reactions, prevent secondary infections, and minimize readmissions.” High-CRI LED lights can also help prevent medication errors.

Another method of LED hospital lighting control is the use of occupancy sensors. These sensors will save money beyond those that result from reduced energy consumption. Sensors will also extend the life span of bulbs and fixtures even further by turning them off when no one is in the area. These sensors are best suited for low-traffic areas.