Different people have different definitions of electrical emergencies. For some people, an electrical emergency is when there is a power outage that hinders them from using their devices. For others, it's when an electrical fault causes the outlets to release a burning odor. Whatever you consider an electrical emergency, it should be handled as soon as possible by an electrical contractor.
That said, while some electrical issues can wait a day or two before seeking electrical repairs, others need to be handled as soon as they arise.