This standard covers ordinary watt-hour meters, precision watt-hour meters, and special watt-hour meters used in combination with instrument transformers in single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire circuits. This specification specifies watt-hour meters with transmitting devices (hereinafter referred to as meters), excluding dense watt-hour meters, precision power accounting meters that measure the total amount of current combining multiple circuits, and ordinary power accounting meters. In addition, other than the matters stipulated in this standard. According to JIS C 1210. In addition, for meters equipped with additional equipment, this standard applies to the electricity meter section with the additional equipment attached. In this standard, regarding the transmitter of electricity meter with transmitter used for centralized meter reading and automatic meter reading, see Annex 1, Current transformer for multi-circuit totalizer used in combination with multi-circuit totalizer. Refer to Annex 2 and Annex 3 for combinations with transformers and tolerance limits for total errors.
JIS C 1216:1995 history
2009JIS C 1216-1:2009 Alternating-current watt-hour meters (for connection through instrument transformer) -- Part 1: General measuring instrument
1995JIS C 1216:1995 Alternating-current watt-hour meters (for connection through instrument transformer)