things to check after lightning strike
United States. Once the fire department has given an all-clear, you will need to call your local electrician to perform a surge inspection. Concealed Lightning Strike Damage to Electrical Wiring. We have come across many lightning strikes that have exploded electrical equipment off the walls of homes, and that same power surge that damages electronics also damages the wiring in the walls. Resistance in the normal current path due to a damaged connection caused by the energy of a Lightning Strike would never be detected by a megger test. The test current has been known to destroy lights bulbs and printed circuit boards that have been inadvertently left in the electrical system as it is being tested. In most cases, you will be able to notice evidence of a lightning strike to your house, sometimes long after the hit. Meggers cannot test the resistance of the conductor material itself. This receptacle and wiring inside the walls had to be replaced. You might need to evacuate your home, if the damage is too severe. Lightning strike damage to sprinkler systems often goes undetected for months. If you do a megger test and the resistance of the conductor insulation fails the only thing that you know is that somewhere along the entire length of the circuit the insulation had become defective. Top Five Colossal Symptoms of Lightning Strike Damage to Your Sprinkler System. Concealed damage from lightning strikes and surges to your electrical system can be detected with CurrentSAFE instruments. During the CurrentSAFE process our technicians inspect the wiring inside the walls using minimally evasive tools. Top 5 Garden Tips and Tricks To Do In February, Our WiFi Irrigation Controller Reviews Surprised Us, How to Spotlight Top Sprinkler System Repairs You Want This Year, Color Inspiration palette to do Daring Things from This Unique Source. If the electrical panel is equipped with a whole-house surge protection device, the surge will stop there. A very important part of an electrical system test is to determine the resistance in the path of the electrical current. Increased resistance in the normal current path caused by a … Check anywhere there are GFI circuits. What to do after lightning strikes? Some homeowner insurance policies provide coverage for power surge damage that is a direct result of lightning strikes. We see this quite often when someone calls us, because the sprinkler system came on and just won’t shut off. Falling bricks and shingles can cause severe damage to your roof. If that does not turn off the water then locate the main shut off … Increased resistance in the normal current path caused by a Lighting Strike can create a poor electrical connection which can build up sufficient enough heat to start a fire in an outlet or junction box. A direct lightning strike can emit shock waves powerful enough to move chimney bricks, roof shingles, and other roofing components. In this case the first thing to do is to unplug the controller. The question is where do you start to look for the problem. As a result of lightning strike damage or a power surge the controller could send out power to multiple zones at the same time, even when the controller is in the “Off” position. Cars are havens from lightning—but not for the reason that most believe. A very important part of an electrical system test is to determine the resistance in the path of the electrical current. The Megger test sends a 500 volt to 1,000 volt DC current across an electrical system that is designed for 240 volts AC. Meggers cannot test the resistance of the conductor material itself. So instead of testing for damage the megger test can cause damage. With the CurrentSAFE Service we methodically check every inch of wire in the electrical system, and every switch, every receptacle, and every light fixture outlet to insure that no latent defects from the Lightning Strike exist. The CurrentSAFE Service is a completely nondestructive test in virtually all aspects. Lightning is unpredictable and so is the damage caused by it. Surges during lightning strikes can damage wiring, here is an example from a CurrentSAFE inspection. Signs of a Lightning Strike. The test voltage is two to four times greater than the normal operating voltage, and can be very destructive. “You can also get burns from a lightning strike, at the entrance and exit sites.” A megger test is very limited and only measures one value in the electrical system. It is like trying to find the so called needle in the hay stack. According to statistic compiled by the Insurance Information Institute, did you know, that among homeowners nationwide, Ohio ranks in the TOP 10 States for Lightning Strikes and Surge related losses?! Meggers only test the resistance of the conductor insulation. We have performed … If your house is struck by lightning, the first thing you should do is call the fire department. Damage from lightning however, can also be concealed inside of walls. For example, if all the navigation and communications systems are operated by the flight crew in flight after the lightning strike and no anomalies are found, checks to the operated systems would not normally be required. The level of checks after a lightning strike to the airplane is determined by flight crew information and the airplane condition after the incident. Now if you think your home electrical system was in some way damaged by lightning or through a surge, it needs to be tested with CurrentSAFE. “It really messes with your neurological system,” she said. Twenty-eight people are killed by lightning in the United States each year, according to NOAA's 10-year average of annual lightning fatalities. Common signs that your home was struck include: Signs of a home struck by lightning, if siding is present on the home, you can often see black scorch marks on the siding, located around the perimeter of the home. Cooper Electric is experienced in dealing with insurance companies to mitigate damages caused by lightning strikes and surges on your electrical wiring. When lightning strikes a nearby power line, it travels the path of least resistance from the power line to the meter and then into the home’s electrical panel. The testing makes sure there is no concealed damage or finds the hidden damage that would have otherwise been left to create a bigger problem like fire. The most common cause of death in a lightning strike is cardiac arrest.” If you do survive a strike, you’re likely to suffer from headaches, body pain, fatigue, difficulty sleeping, short-term memory loss and personality changes. You cannot create more damage with any test instrument that is used in the CurrentSAFE Service. Low voltage lighting on deck, air conditioner/heat (thermostats, our system itself was fine), generator, greenhouse, were all DOA but I wouldn’t have known it if I hadn’t checked. More time out enjoying your healthy landscape might make you more healthy too. Cooper Electric's CurrentSAFE, is an electrical hazard detection service that finds and eliminates electrical hazards. Lightning's extreme heat will vaporize the water inside a tree, creating steam that may blow the tree apart. CurrentSAFE is the test we perform on homes after lightning strikes, electrical surges, and overall electrical hazard detection. The electrical system of a home or business is one of the most frequent points of entry of increased voltage from a lightning or surge event.
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