This is a test of commonsense. Complete the next sentence:

How to put out electrical fires
Call emergency services.
If a fire is developing and you cannot get the electricity turned off or it is growing rapidly, call the fire department. Even after you call you may be able to get it out yourself, but it is better to be safe than sorry when it comes to a fire.
In general, fire fighters will be better equipped to fight a fire that has live electricity in the mix than you will be. Tell the person you talk to that you are dealing with an electrical fire, so that the fire fighters know what they are getting into.