National Grid
Power Outage When the power goes out, follow these safety precautions:
  • Disconnect sensitive appliances, such as computers, televisions and microwaves, to avoid potential power surge damage when electricity is restored.
  • Keep refrigerator and freezer doors shut—food will stay six to nine hours in a refrigerator without spoiling. Frozen foods will keep about 24 hours.
  • Use generators safely—for detailed information, see the Generators section.
  • Flooding—If your home has flooding, check with an electrician before turning on anything.
  • Keep warm! Burn only wood or newspapers in your fireplace or woodstove.
Portable Space Heaters If you use a portable space heater to keep warm, take special precautions:
  • Some types of kerosene and propane portable space heaters get hot enough to ignite nearby draperies, carpet, paper, clothing or furniture.
  • It's important to periodically check nearby objects to see if they feel hot. It's also important to choose a model that has an Underwriters Laboratories label, which means it has passed certain safety tests.
  • If you must use a portable space heater, check to make sure it has a safety information label and an automatic shutoff device that turns the heater off if it tips over or becomes too hot.