Want your facility’s electrical system to remain safe, uneventful?
That’s the objective. Because electricity in long-term care has never JUST been electricity. It’s oxygen concentrators, ceiling lifts, med fridges, nurse call buttons and elevators transporting residents who can no longer walk on their own.
Remove it for ten minutes and a peaceful Tuesday becomes a major emergency.
Here’s the problem:
Very little of the risk resides in the resident areas. It resides behind a locked door in the electrical room that few if any people enter.
What you’ll uncover:
- Why Long-Term Care Buildings Are Different
- Arc Flash: The Hazard You Never See Coming
- Overloads And Ageing Panels
- How Electrical Fires Start In Care Homes
- Building A Safer Electrical Backbone
Why Long-Term Care Buildings Are Different
A hospital can evacuate. An office block can evacuate. A nursing home… can’t.
Many people living in long-term care are wheel chair bound, have diminished mental capacity, or are attached to some type of life sustaining equipment that must remain on. That one fact completely alters the way the electrical system needs to be planned, protected and serviced.
Care homes often reside in older buildings too. Many were wired several decades ago when buildings used a fraction of the electricity. Then came the powered beds, WiFi equipment, additional HVAC and charger stations at every nurse station.
The load grew. The infrastructure often didn’t.
One more wrinkle: Facilities located in seismic zones need equipment that will maintain power distribution integrity when the earth shifts around them. That’s why electricians specify seismic qualified switchgear versus commodity hardware. Seismic qualified switchgear undergoes shake-table testing to make sure breakers, busbars and enclosure don’t shift or fall out of alignment after violent motion. Instead of arcing and dropping the building’s load, seismic switchgear stays put and operational. Compact sealed medium voltage systems like Spike Electric GIS(opens in new tab) are often specified on upgrades because their seismic-rated construction integrates with the limited space of older care facilities’ electrical rooms.
Aging wiring. Rising demand. Vulnerable occupants. That’s where arc flash and fire hazard reside.
Arc Flash: The Hazard You Never See Coming
Arc flash occurs when electrical energy discharges through air from one conductor to another. It occurs in a fraction of second.
And the numbers are ugly…
An arc flash can propel temperatures to exceed 35,000° F. To put that in perspective, that is about four times hotter than the sun’s surface. It comes accompanied by a pressure blast, jet of molten metal, and noise loud enough to blast through eardrums.
Government safety data suggests up to 10 arc flash incidents daily nationwide. These incidents contribute to thousands of disabling electrical injuries annually.
Where does it happen in the care home? They typically happen in:
- Main switchgear and distribution panels
- Motor control centers serving HVAC and pumps
- Transfer switches tied to the emergency generator
- Older panelboards being worked on while energized
The maintenance technician standing in front of that panel absorbs the direct hit. However the occupants aren’t safe either because an arc flash event will likely take out the power as well. Now the building is being powered by a generator that was never tested to perform like this.
Overloads and Aging Panels
Here’s something most facility managers underestimate…
Overloads are seldom announced with trumpets. Electrical circuits don’t become hazardous overnight. They become hazardous gradually, over decades, as more things are plugged into a system that was never enlarged.
The warning signs are quiet:
- Breakers that trip “for no reason”
- Warm cover plates or panel doors
- Lights that dim when the HVAC kicks in
- A faint burning smell near an outlet
- Power strips daisy-chained into other power strips
That one deserves repeating. Power strips plugged into power strips are by far the most common finding during care facility inspections, yet it’s one of the least expensive things to fix.
Why is heat such a big deal? Heat is what happens between an overload and a fire. Loose connections, corroded lugs and undersized conductors all produce heat. Heat breaks down insulation. When insulation breaks down it eventually fails, and then you have an arc or ignition source laying dormant inside of a wall.
How Electrical Fires Start in Care Homes
The good news first.
The majority of fires remain small. According to federal fire data, 83% of fires in nursing homes never leave the item of origin, due in large part to sprinklers and effective compartmentation.
But electrical fires(opens in new tab) don’t fail like cooking fires do. If you only look at larger, non-confined fires, electrical malfunction causes 18% of them, second only to appliances. Those are fires that actually grow, harm occupants, and force the type of evacuation these buildings are worst at.
The chain usually looks like this:
- A connection loosens or insulation breaks down
- Resistance climbs and that point starts running hot
- Nearby material reaches ignition temperature
- Smoke reaches an occupied space before anyone sees flame
Smoke is what kills people in this situation. Those with decreased lung function or who have limited mobility/confusion can succumb much faster than an otherwise healthy adult would. These people can’t always evacuate themselves.
Building a Safer Electrical Backbone
So what actually moves the needle? Four things, roughly in order of impact.
Get an Arc Flash Study Done
An arc flash hazard analysis determines the incident energy level at each piece of equipment and clearly defines the level of protection needed. NFPA 70E requires these studies be done every five years or when modifications have been made to the system. Most healthcare facilities have undergone significant changes since anyone has looked.
Label Everything
Each panel, switch and disconnect should have a simple to read arc flash label that identifies incident energy, boundary distance and minimum required PPE. Labels are inexpensive. They dramatically alter worker behavior when approaching a live panel.
Upgrade the Gear, Not Just the Wiring
New switchgear designed with arc-resistant construction, faster acting protection and sealed insulation helps minimize the likelihood of an arc occurring and the potential damage it may cause. Sealed switchgear designs also protect against dust, humidity and salt air; the three silent killers of older switchgear. Plus, if your facility is located in a known seismic zone, then seismic qualified switchgear should be your starting point versus your upgrade.
Build a Real Inspection Rhythm
Thermal scans detect hot spots months before failure. Torque verifications of connections, breaker testing and load banking generators all fall into a fixed calendar schedule, not a “we’ll get to it” list.
Tying It All Together
Loss of electrical safety is not something you check off on a list in long-term care. It’s the headline you don’t want to read on what was otherwise a normal Tuesday.
To quickly recap:
- Older buildings carrying modern loads create hidden risk
- Arc flash endangers staff and knocks out power residents depend on
- Overloads build heat slowly, then fail all at once
- Electrical malfunction drives a big share of serious facility fires
- Studies, labelling, modern equipment and scheduled inspections cut the risk hard
None of these steps are glamorous. But taken together they provide a building full of immobile occupants with a real margin of safety.
And that’s worth getting right.