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Go Back To School Safely with Home Electrical 101

Published by Point Loma Electric, Plumbing, Heating & Air

Of all the aspects of a modern home, the electrical system probably gets the least amount of attention. Unless a bulb goes out, a breaker trips or something else goes wrong, most homeowners don’t give it much thought at all. But it pays to learn more about the key electrical components and systems that keep the lights on, especially when it comes to keeping the family safe. 

Fortunately, it doesn’t take an electrical engineering degree to understand the basics. This article will outline a few key aspects of every home’s electrical system and how they can be kept safe and problem-free.

Wiring and Wall Outlets

When discussing a home’s electrical system, the natural place to start is the wall outlets and wiring. Every outlet has at least two wires connected to it – hot and neutral. These wires carry electric current in a closed circuit between the outlet and the main electrical panel. If any current escapes this circuit, a third “ground” wire (present in most modern homes) carries the stray current to the home’s main grounding wire to be safely discharged into the earth.

Many older homes don’t have ground wires, which leaves them exposed to a greater risk of electric shock, fires, or damage to appliances and devices, especially in the event of a power surge. Other potential safety risks of older outlets include loose or damaged wires, corroded terminals, and worn prong contacts. Homeowners with old outlets or without grounded 3-prong outlets would do well to upgrade their outlets and wiring for safety’s sake. 

Outdoor Electrical Systems

Other things to watch out for in older homes (and even some newer ones) are code violations or potential electrical hazards in the outdoor electrical system. The National Electrical Code has different requirements for outdoor circuits than those inside the home. This is because outdoor electrical equipment often involves higher voltages and is exposed to moisture and other risk factors.

Most outdoor outlets (especially those in exposed areas or near a pool or hot tub) must be weather-rated and GFCI-protected. GFCIs (ground fault circuit interrupters) help prevent electrocution by cutting off power when an imbalance is detected in the current traveling through a given circuit. Many homes lack outdoor GFCI outlets – in some cases, indoor GFCIs (not weather-rated) have been installed outside.

Older homes may also have outdated conduit materials protecting underground cables or pool wiring. Older conduits made of metal have been known to rust and disintegrate, leaving wires exposed, so newer homes typically use PVC for buried wire conduits.

Always Let a Professional Handle Electrical Work

Upon discovering outdated or malfunctioning electrical equipment, it’s always best to call a professional electrician to solve the problem. Even if the issue seems like a simple one, the risks involved are simply too great. Electrocution can be fatal, even at a relatively low voltage – but there are less obvious risks, as well. 

Inadvertently damaging wires or incorrectly installing a receptacle or other fixture can lead to an electrical fire; improper grounding can lead to fried devices if there’s a power surge; out-of-code wiring or installs can lead to hefty fines. Professionals are up to date on the latest codes and follow strict safety protocols to ensure the job gets done right the first time – without the fear of death, injury, or disaster looming over the family’s heads!

About Point Loma Electric and Plumbing

The experts at Point Loma Electric and Plumbing have been honored to serve San Diego, CA since 1988. Their licensed, insured, drug-tested, and background-checked technicians are courteous professionals who specialize in handling the electrical and plumbing systems of older homes. Point Loma offers up-front pricing and guarantees satisfaction on every job. Call now for electrical service!

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Reviews

Hear It From Your Neighbors

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April 2025

I am very pleased with this company because they have great people working for them. [My technician] was organized and all were at the house in 2 days. Paper booties were worn. The electricians knew what they were doing and produce excellent work. I had 3 new circuits put in along with updating box. All this was done in one day. This co also sends a pix of technician who is coming to your house. Every person had lovely manners, and cleaned up, even vacuumed under stove when it was moved. A fine experience and I’d use them again.

Carol M.

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April 2025

I had a water leak at my house and its cause was extremely difficult to find. Our tech spent a long time carefully analyzing and testing all possible options until he found the cause of the leak, like really a true detective, that nobody else before him was able to find. He demonstrated not only that he is a truly top professional but the he also is kind, patient and understanding. He explained all the issues very well and was also mindful of my time and convenience. He works very fast, efficiently and reliably and is extremely nice human being.

Zofia D.

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April 2025

Point Loma Electric and Plumbing did electrical work in our house once and we liked the service the first time so we called them again. The technicians have been nothing but friendly and professional both times. They walked us through every step of the process. They showed up on time and completed the work in a timely manner. If we had any concerns they made sure the address them, if anything was needed, they handled it. We will definitely use Point Loma Electric and Plumbing again. Johnny who oversaw the work is the best!! Thank you

Tonya W.

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January 2025

Had an emergency water heater leak. Called Point Loma. Within the hour, James shows up and goes to work. And by the next day, we have a tankless water heater up and running. Thanks to James for the excellent customer attention, service and hard work!

Christine M.

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March 2025

Always great to work with them - years 2011 for new electrical panel, and 2025 for some minor upgrades. Erich and Leo corrected 3 problems with old wiring we were having. Very great team and very much appreciate their work.

Joleen L.

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May 2025

My a/c has not been working for some time. I called Point Loma Electrical and they sent Nicholas Mullins to stop by and check it out. What a great guy. He was very respectful, honest, evaluated the situation and made recommendations that I felt were straight forward. This company is top notch and I would recommend them to any of my friends and family. This is now my go to ac repair company.

Renae B.

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May 2025

We had Point Loma Elec rewire our entire 62 year-old house's electric. They worked efficiently and were thorough letting us know what was discovered and done each day. Timely, neat, and responsive and affordable with great financing. Highly recommend.

Lisa S.

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February 2025

This is a great team. I had to replace some fluorescent lights in the kitchen. I couldn't do it myself because the ballasts had to be replaced and that's above my skill level. Anthony and Matt came today and put in new led lights (with a 10 year warranty- fluorescent lights are ancient tech). Anthony and Matt were very professional and efficient. I would recommend them highly!

Jeffrey J.

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