1.1 This Standard covers the electrical safety of electricity meters rated up to 600 VAC, which measure,
monitor, record, transmit, or receive electrical energy generation or consumption information.
1.2 Meters covered by this Standard may be provided with one or two-way communication capabilities,
by means of carrier signals, telephone, cable, wireless communication, or other methods.
1.3 Meters covered by this Standard may additionally provide signals, either by direct connection or
wirelessly, for the control of electrical loads or electrical power generation equipment in response to
signals received from the utility or local communication networks.
1.4 This Standard applies to detachable meters (Type “S” meters or “S-base” meters), and bottomconnected
meters (Type “A” meters or “A-base” meters), intended for installation in ordinary (nonclassified)
locations. These may or may not be intended to be under the exclusive control of the serving
utility.
1.5 This Standard does not apply to equipment intended as test equipment or equipment intended to
make measurements for analysis in a laboratory or industrial setting.