Electrical work though is not as cut and dried as, say, doing laundry or cooking. In fact, according to About.com’s Timothy Thiele, many homeowners make mistakes when troubleshooting their electricity-related problems. Such incorrect practices can lead to fires and injuries.A common DIY electrical job faux pas is using a wire with the wrong amperage when adding an outlet or circuit to a breaker or fuse. For instance, using a 14-2 NM wire that is meant for 15 amps to a breaker or fuse that’s designed for 20 amps. Meanwhile, master electricians in Toronto are familiar with amperage specifications because of their training and experience in electrical work, safety, theory and regulations.