New Jersey Division of Fire Safety Issues Post-Hurricane Fire Safety Advisory
State Fire Officials Warn of Electrocution Risk from "Backfeeding"
of Power Lines
TRENTON, N.J. - New Jersey Department of Community Affairs (DCA)
Commissioner Lori Grifa today issued a warning to residents
regarding the
potential dangers of portable generators and "backfeeding" in the
aftermath
of Hurricane Irene.
Portable generators, widely used when power lines are down, can
prove fatal to homeowners, utility workers and even your neighbors when used
improperly. A generator connected to a home's wiring or plugged into a regular
household outlet can cause 'backfeeding' along power lines and electrocute
anyone who comes in contact with them-even if the line seems dead.
'Backfeeding' happens when a portable generator is connected
directly to the home's wiring without having a functional transfer switch.
Without a transfer switch, a portable generator's electricity can be sent back
into the power grid from your house. This will energize the utility's
power lines on the street and poses an electrocution hazard for those who may
not know that the voltage is present on the shared lines.
The general public - as well as first responders - should assume
that all power lines are energized and the risk of electrocution is high if
proper measures are not observed.
"Even though power may be out in your immediate area, improperly
connected portable generators are capable of 'backfeeding' power lines thought
to be inactive," said Commissioner Grifa. "In addition, as the utility's
power is restored, your portable generator and house wiring may be severely
damaged from improper usage."
Acting Division of Fire Safety Director William Kramer, Jr., also
warns that although portable generators can be very helpful to during outages,
"it is imperative that the public follow safety guidelines when using one."
Portable Generator Safety Tips:
- Never connect a generator directly to your home's wiring
unless your home has been wired for generator use. This can
cause backfeeding along power lines and electrocute anyone
coming in contact with them, including lineworkers making
repairs. Have a licensed electrician install the equipment
necessary to safely connect emergency generators to your home.
- Always plug appliances directly into generators. Connecting
the generator to your home's circuits or wiring must be done by
a qualified, licensed electrician who will install a transfer
switch to prevent backfeeding.
- Use heavy-duty, outdoor-rated extension cords. Make sure
extension cords are free of cuts or tears and the plug has three
prongs. Overloaded cords can cause fires or equipment damage.
- Ensure your generator is properly grounded.
- Never overload a generator. A portable generator should only
be used when necessary to power essential equipment or
appliances.
- Turn off all equipment powered by the generator before shutting it down.
- Keep the generator dry. Operate it on a dry surface under an
open structure.
- Always have a fully charged fire extinguisher nearby.
- Never fuel a generator while it is operating.
- Read and adhere to the manufacturer's instructions for safe
operation. Never cut corners when it comes to safety.
The Division of Fire Safety serves as the central fire service
agency in the State. The Division is responsible for the development and
enforcement of the State Uniform Fire Code, as well as for implementing public
education and firefighter training programs. For more information, log on to
http://www.nj.gov/dca/divisions/dfs/
on the DCA website.
