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
Laboratories | Apr 15, 2024
HGA unveils plans to transform an abandoned rock quarry into a new research and innovation campus
In the coastal town of Manchester-by-the-Sea, Mass., an abandoned rock quarry will be transformed into a new research and innovation campus designed by HGA. The campus will reuse and upcycle the granite left onsite. The project for Cell Signaling Technology (CST), a life sciences technology company, will turn an environmentally depleted site into a net-zero laboratory campus, with building electrification and onsite renewables.
Codes and Standards | Apr 12, 2024
ICC eliminates building electrification provisions from 2024 update
The International Code Council stripped out provisions from the 2024 update to the International Energy Conservation Code (IECC) that would have included beefed up circuitry for hooking up electric appliances and car chargers.
Urban Planning | Apr 12, 2024
Popular Denver e-bike voucher program aids carbon reduction goals
Denver’s e-bike voucher program that helps citizens pay for e-bikes, a component of the city’s carbon reduction plan, has proven extremely popular with residents. Earlier this year, Denver’s effort to get residents to swap some motor vehicle trips for bike trips ran out of vouchers in less than 10 minutes after the program opened to online applications.
Laboratories | Apr 12, 2024
Life science construction completions will peak this year, then drop off substantially
There will be a record amount of construction completions in the U.S. life science market in 2024, followed by a dramatic drop in 2025, according to CBRE. In 2024, 21.3 million sf of life science space will be completed in the 13 largest U.S. markets. That’s up from 13.9 million sf last year and 5.6 million sf in 2022.
MFPRO+ News | Apr 12, 2024
Legal cannabis has cities grappling with odor complaints
Relaxed pot laws have led to a backlash of complaints linked to the odor emitted from smoking and vaping. To date, 24 states have legalized or decriminalized marijuana and several others have made it available for medicinal use.
Multifamily Housing | Apr 12, 2024
Habitat starts leasing Cassidy on Canal, a new luxury rental high-rise in Chicago
New 33-story Class A rental tower, designed by SCB, will offer 343 rental units.
MFPRO+ News | Apr 12, 2024
Greystar becomes top apartment owner, manager, and developer in 2024
One firm set records for this year’s National Multifamily Housing Council Top 50 roundup of multifamily firms. Greystar now sits at number one in the NMHC’s lists for top apartment owner, manager, and developer in 2024.
Construction Costs | Apr 11, 2024
Construction materials prices increase 0.4% in March 2024
Construction input prices increased 0.4% in March compared to the previous month, according to an Associated Builders and Contractors analysis of the U.S. Bureau of Labor Statistics’ Producer Price Index data released today. Nonresidential construction input prices also increased 0.4% for the month.
K-12 Schools | Apr 10, 2024
A San Antonio school will provide early childhood education to a traditionally under-resourced region
In San Antonio, Pre-K 4 SA, which provides preschool for 3- and 4-year-olds, and HOLT Group, which owns industrial and other companies, recently broke ground on an early childhood education: the South Education Center.
University Buildings | Apr 10, 2024
Columbia University to begin construction on New York City’s first all-electric academic research building
Columbia University will soon begin construction on New York City’s first all-electric academic research building. Designed by Kohn Pedersen Fox (KPF), the 80,700-sf building for the university’s Vagelos College of Physicians and Surgeons will provide eight floors of biomedical research and lab facilities as well as symposium and community engagement spaces.