Back before the days when parents “baby-proofed” their homes, my wife’s little sibling got quite a shock. Little sibling was the mischievous type and stuck her finger into a power outlet. It’s not actually a very easy thing to do, but at three-years-old, her fingertips were small. Fortunately, no lasting damage was done. But my wife will never forget her little sister’s blackened finger and the stringent safety measures by her parents that those mysterious little holes in the wall can kill you.
Now that my wife has married an electrician, she contends that we take every possible measure to ensure that the electrical system in our Los angeles home is safe. One important step was to ensure that its electrical wiring is properly grounded.
What is electrical grounding, anyway?
Grounding adds a safety factor for your family and your consumer electronics. Here’s how it works. Electricity travels the trail of least resistance. If an appliance like a toaster breaks, electricity can flow on the metal outside the toaster. Coming in contact with it could cause a serious shock, causing injury or even death. In case your electrical system is grounded and the toaster is blocked in with three prongs, the electricity won’t flow to the outside the toaster. Instead it will flow through the third prong back into the wires and harmlessly into Nature. Thus, the term “grounding. inch
A power system can be grounded with numerous kinds of devices. A “ground wire” is simply a cord attached to your electrical system that has been pushed safely into the ground. Metal conduits (electricians call them “conduit”) that hold and protect your electrical wires can also act as a grounding device. Sometimes, grounding is offered by managing a cord from your electrical system and attaching it to metal domestic plumbing conduits that run into the bottom. บริการตรวจสอบระบบไฟฟ้า
Grounding protects not only people but also sensitive consumer electronics. Without grounding, electrical charges build up in electrical wiring and create slight but continuous damage to delicate consumer electronics. This damage can shorten the lives of computers, phones, and any electrical appliance that has “smart” (computer) components, possibly your chiller or hair dryer.
How can i tell if my electrical system is grounded?
Homes built before 1950 were sometimes grounded. Homes built after 1950 were usually grounded. Even if your system was originally grounded, electrical wiring mistakes may have caused to become the grounding ineffective. Even with outlets that accept three prongs, it doesn’t imply that your electrical electrical wiring is grounded. The only way to know for sure is to have a qualified electrician check out your electrical system with a special tester.
My electrical outlets have three prongs — aren’t they grounded?
If your home has electrical outlets which accept three prongs, it may have a grounded system. The third prong allows an appliance to be grounded Whether it’s connected to a power system that has a grounding device. Sometimes three-pronged outlets have been installed in electrical systems that has no grounding device. This makes it look like the machine is grounded when it’s not. Do-it-yourselfers or handymen may install three-pronged outlets in an ungrounded system not realizing the risk to safety and not knowing that it violates the National Electrical Code.
Sleep sounder with a grounded electrical system
If you’ll sleep sounder knowing that your family and your appliances and consumer electronics are safer, ask an electrician to use a tester to check your electrical system for grounding. This can be done in a service call. In some cases, electricians will offer a grounding check as part of a free home safety evaluation, in particular when they’re doing other work in your home.