"This Standard applies to self-contained household refrigerators and freezers designed to be installed and used in residential occupancies in accordance with the Canadian Electrical Code@ Part I@ CSA Standard C22.2@ and the National Electrical Code@ ANSI/NFPA 70. These requirements apply to household refrigerators and freezers intended for connection to 15 or 20 A@ 100 to 140 V or 15 A@ 200 to 250 V@ single phase@ alternating-current (ac) circuits; and combination ac/dc circuits or direct-current (dc) circuits where the dc voltage does not exceed 30 V. The terms ""appliance""@ ""refrigerator""@ ""product""@ ""equipment""@ and ""unit"" are used interchangeably and refer to all household refrigerators@ combination refrigerator-freezers@ freezers@ and refrigerated kitchen units or any part thereof covered by this Standard unless specifically noted otherwise. The equipment is air-cooled employing hermetic refrigerant motor-compressors or is of the absorption type employing electricity as a heat source. These requirements apply to (a) freestanding@ wall-hung@ recessed@ and built-in refrigerators and freezers; (b) refrigerators and freezers for use in recreational vehicles; (c) refrigerated kitchen units; and (d) accessories. A product that contains features@ characteristics@ components@ materials@ or systems new or different from those in use when the Standard was developed@ and that involves a risk of fire@ electric shock@ or injury to persons@ shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the level of safety for the user of the product as originally anticipated by the intent of this Standard."