A label on the inside of the panel will indicate the amperage capacity. Electrical receptacles for three-pronged plugs. Receptacles placed within six feet along wall surfaces. Wiring neatly done. All connections inside a plastic or metal electrical box.
All electrical boxes have a proper cover.
15 or 20 amp fuses blow regularly. Extension cords used as a permanent part of the system. Lights dim when an electric appliance is turned on. Use of adapters to increase the number of appliances plugged into one receptacle. Three or more electrical panels in a single family home.