(a) Heater Cords. All cord-and-plug-connected smoothing irons and electrically heated appliances that are rated at more than 50 watts and produce temperatures in excess of 121°C (250°F) on surfaces with which the cord is likely to be in contact shall be provided with one of the types of approved heater cords listed in Table 4.0.1.4.
(b) Other Heating Appliances. All other cord-and-plug-connected electrically heated appliances shall be connected with one of the approved types of cord listed in Table 4.0.1.4, selected in accordance with the usage specified in that table.