Lightning Alley is not just a catchy name for a street or the local bowling lanes. It's the name dubbed to a notorious region in central Florida that is in the heart of the most lightning-prone area in the entire country. And that lightning strike may come at the most inopportune time.
Not only can this force of nature cause bodily injury and severe damage to property, it also has the power to disrupt or destroy a police department's 9-1-1 communications system, which is intended to assist residents during an emergency. That's exactly what happened in the middle of one Florida storm.
When a Walmart in the city of Bushnell was relocated, the facility was donated to the county for their use. The Sumter County Sheriff's Department decided to open its new offices in this building, including housing its emergency communications there.
One serious problem was that the electrical system was built for a 1970's vintage department store, not a critical communications and public safety facility. During one lightning storm in particular, the 9-1-1 system failed, leaving county residents without police, fire or ambulance response.
Inspection of the existing electrical system showed that it was badly flawed, mainly due to improper connectors and poor bonding and grounding. The communications tower, for example, had its own independent and inadequate grounding. The emergency generators and building structure were all independently grounded, each with its own ground rod, exposing its poor design. The main grounding electrode consisted of a single galvanized steel rod from the 1970s, with very high resistance to earth.
A new system was designed and installed for under $40,000, a minimal cost considering the value of the equipment protected, and improved public safety it brought to the residents of Sumter County.
"To be effective, the entire grounding system needs to be properly designed, using listed connectors and corrosion resistant materials," said Dave Brender, National Program Manager for the Copper Development Association, CDA. "Lightning protection systems in particular must be well-grounded to work properly, and could make matters worse if they are not. Copper and its alloys are the most common materials in use for this application because they provide superior corrosion resistance and avoid oxidation problems at connections.
Copper is also easy to install and durable," Brender added.
Central Florida is not the only region in the U.S. affected by severe weather. Similar 9-1-1 and broadcast facilities are employed in areas all over the country where communications is critical and the chances for lightning strikes are quite high. Having proper copper-based grounding and bonding should be a top priority where an entire system can get crippled by lightning.
Related Stories
Energy Efficient Roofing | Oct 28, 2022
Rooftop mini turbines can pair with solar panels
A new type of wind turbine can pair well on roofs with solar panels, offering a double source of green energy generation for buildings.
Building Team | Oct 27, 2022
Who are you? Four archetypes shaping workspaces
The new lifestyle of work requires new thinking about the locations where people work, what their workflow looks like, and how they are performing their best work.
Codes and Standards | Oct 27, 2022
Florida’s Surfside-inspired safety law puts pressure on condo associations
A Florida law intended to prevent tragedies like the Surfside condominium collapse will place a huge financial burden on condo associations and strain architecture and engineering resources in the state.
Building Team | Oct 26, 2022
The U.S. hotel construction pipeline shows positive growth year-over-year at Q3 2022 close
According to the third quarter Construction Pipeline Trend Report for the United States from Lodging Econometrics (LE), the U.S. construction pipeline stands at 5,317 projects/629,489 rooms, up 10% by projects and 6% rooms Year-Over-Year (YOY).
Data Centers | Oct 25, 2022
Virginia county moves to restrict the growth of new server farms
Loudoun County, Va., home to the largest data center cluster in the world known as Data Center Alley, recently took steps to prohibit the growth of new server farms in certain parts of the county.
Museums | Oct 25, 2022
Seattle Aquarium’s new Ocean Pavilion emphasizes human connection to oceans
Seattle Aquarium’s new Ocean Pavilion, currently under construction, features several exhibits that examine the human connection with the Earth’s oceans.
Energy-Efficient Design | Oct 24, 2022
Roadmap shows how federal buildings can reach zero embodied carbon emissions by 2050
The Rocky Mountain Institute (RMI) has released a roadmap that it says charts a path for federal buildings projects to achieve zero embodied carbon emissions by 2050.
Higher Education | Oct 24, 2022
Wellesley College science complex modernizes facility while preserving architectural heritage
A recently completed expansion and renovation of Wellesley College’s science complex yielded a modernized structure for 21st century STEM education while preserving important historical features.
Transportation & Parking Facilities | Oct 20, 2022
How to comply with NYC Local Law 126 parking garage inspection rules
Effective January 1, 2022, New York City requires garage owners to retain a specially designated professional engineer to conduct an assessment and file a report at least once every six years. Hoffmann Architects + Engineers offers tips and best practices on how to comply with NYC Local Law 126 parking garage inspection rules.
Mixed-Use | Oct 20, 2022
ROI on resilient multifamily construction can be as high as 72%
A new study that measured the economic value of using FORTIFIED Multifamily, a voluntary beyond-code construction and re-roofing method developed by the Insurance Institute for Business & Home Safety (IBHS), found the return can be as high as 72%.