Electrical connection It is the responsibility and obligation of the consumer to contact a qualified installer to assure that the electrical installation is adequate and is in line with the National Electrical Code ANSI/NFPA No. 70-latest edition, or with CSA Standard C22.1, Canadian Electrical Code, Part 1, and local codes and ordinances. Electrical ground is required on this appliance. These appliances are equipped with a copper conductor flexible cable.