Pertains to single- or multiple-conductor, round, flat, or coiled appliance wiring material products classified as follows: a) Class I - internal wiring of equipment (single- or multiple-conductor constructions with or without an insulating covering, covering or jacket): i) Group A - not subject to mechanical abuse; and ii) Group B - potentially subject to mechanical abuse; b) Class II - external/interconnecting wires (single- or multiple-conductor constructions with a jacket): i) Group A - not subject to mechanical abuse; and ii) Group B - potentially subject to mechanical abuse.