GENERATOR SAFETY
Preventing Electrocutions Associated with Portable Generators Plugged Into Household Circuits
When power lines are down, residents can restore energy to their homes or other structures by using another power source such as a portable generator. If water has been present anywhere near electrical circuits and electrical equipment, turn off the power at the main breaker or fuse on the service panel. Do not turn the power back on until electrical equipment has been inspected by a qualified electrician.
If it is necessary to use a portable generator, manufacturer recommendations and specifications must be strictly followed. If there are any questions regarding the operation or installation of the portable generator, a qualified electrician should be immediately contacted to assist in installation and start-up activities. The generator should always be positioned outside the structure.
When using gasoline- and diesel-powered portable generators to supply power to a building, turning the main breaker to the off position doesn’t guarantee the electricity produced by the generator will not back feed on to the powerlines. Simply turning the breaker to the off position does not create a visual opening and separation from the utility. If the breaker is damaged or isn’t properly functioning, electricity could still flow back onto the utility and cause serious injury or death to the line workers. It is recommended that a qualified electrician install a transfer switch to properly separate the utility when a generator is in use.
Effects of Backfeed
The problem of backfeed in electrical energy is a potential risk for electrical energy workers. Electrocutions are the fifth leading cause of all reported occupational deaths. Following the proper safety guidelines and instructions of your generator can reduce this risk.
Other Generator Hazards
Generator use is also a major cause of carbon monoxide (CO) poisoning. Generators should only be used in well ventilated areas.