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Portable Electric Generator Safety Tips |
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Portable electric generators offer great benefits when outages affect your home. Below are guidelines for safely connecting and operating portable electric generators.
Don't connect your generator directly to your home's wiring. Connecting a portable electric generator directly to your household wiring can be deadly to you and others. A generator that is directly connected to your home's wiring can 'backfeed' onto the powerlines connected to your home.
Utility transformers can then "step-up" or increase this backfeed to thousands of volts enough to kill a utility lineman making outage repairs a long way from your house. You could also cause expensive damage to utility equipment and your generator. The only safe way to connect a portable electric generator to your existing wiring is to have a licensed electrical contractor install a transfer switch. The transfer switch transfers power from the utility power lines to the power coming from your generator.
Never plug a portable electric generator into a regular household outlet.
Plugging a generator into a regular household outlet can energize "dead" power lines and injure neighbors or utility workers. Connect individual appliances that have their outdoor-rated power cords directly to the receptacle outlet of the generator, or connect these cord-connected appliances to the generator with the appropriate outdoor-rated power cord having a sufficient wire gauge to handle the electrical load.
Don't overload the generator.
Do not operate more appliances and equipment than the output rating of the generator. Overloading your generator can seriously damage your valuable appliances and electronics. A portable electric generator should be used only when necessary, and only to power essential equipment.
Never use a generator indoors or in an attached garage. Just like your automobile, a portable generator uses an internal combustion engine that emits deadly carbon monoxide. Be sure to place the generator where exhaust fumes will not enter the house. Only operate it outdoors in a well-ventilated, dry area, away from air intakes to the home, and protected from direct exposure to rain and snow, preferably under a canopy, open shed or carport.
Do not store fuel indoors or try to refuel a generator while it's running.
Gasoline (and other flammable liquids) should be stored outside of living areas in properly labeled, non-glass safety containers. They should not be stored in a garage if a fuel-burning appliance is in the garage. The vapor from gasoline can travel invisibly along the ground and be ignited by pilot lights or electric arcs caused by water heater thermostats or turning on the lights. Always have a fully charged, approved fire extinguisher located near the generator. Never attempt to refuel a portable generator while it's running.
Turn off all equipment powered by the generator before shutting down your generator.
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