Generator Safety

a standby generator

When a storm knocks out power for extended periods of time, generators may be used to:

  • Help keep food safe
  • Keep lights on
  • Keep safety and medical equipment operating

However, only a small percentage of generators are hooked up or used correctly.

Generator Types

Generators come in 2 types:

  • Portable generators – stand alone and are not directly connected to your home’s electrical system.
  • Standby or backup generators – connect to your home’s electrical system to provide backup power during an outage.

Generator Safety

Improper generator usage can lead to damage, injury, or death. Always notify Tri-County Electric Cooperative (TCEC) when installing a permanent generator and always install a double-throw switch. For smaller portable generators, a switch is not necessary.

Portable Generators Tips

portable generator

Set-Up

  • Nothing should be plugged into the generator when you turn it on. This prevents a surge from damaging your generator and appliances.
  • Do not plug directly into a home outlet or electrical system.
  • Use an extension cord to plug appliances into an outlet on the generator.

Enclosed Spaces

  • Never operate a generator in an enclosed area, such as a garage or basement.
  • Generators produce gases, including deadly carbon monoxide. They require proper ventilation.

Wet Conditions

  • Use caution when operating in wet conditions.
  • Ensure your hands are dry before touching the generator.
  • Protect the generator by operating it under an open, canopy-like structure on a dry surface.

Fueling

  • When you refuel the generator, make sure the engine is cool to prevent a fire, should the tank overflow.
  • Never store fuel near the generator, unless a proper container or fuel tank is used

Other Tips

  • Keep children and pets away from the generator to avoid burns.
  • When venturing outside after a severe storm, whether to check a generator or for any other reason, stay away from downed power lines.
  • On tractor-driven units, always turn off the tractor and PTO control to service the generator. Set the tractor brake before starting the generator.

Standby Generator Tips

  • Notify TCEC that you are installing a generator so it can be noted on your account for the safety of lineworkers.
  • Standby generators should have a transfer safety switch installed by a professional.
  • Follow all manufacturer instructions to properly ground the generator.
  • Consult a qualified electrician for assistance, and be sure any new wiring is inspected.

Transfer Switches are Essential

Any time a generator powers loads through the permanent wiring system of the home, farm, or business, a transfer switch must be used. Adding a standby generator requires a transfer switch, also called a double-throw switch.

  • This switch disconnects the electric load from the electric utility grid.
  • It is usually located between the utility meter and the loads to be served.
  • It is a requirement of the National Electrical Code (see NEC Article 702.6).
  • It is also required by TCEC for 2 very good reasons:
    1. It prevents the backflow of current into the utility’s lines during an outage.
    2. It prevents damage to the generator when service has been restored.

For smaller portable generators used to power household appliances, a transfer switch is not necessary.