Watt-hour, var-hour and maximum demand indicators for telemetering -- Part 2: Measuring instruments used transaction or certification
遥测用瓦时、无功时和最大需量指示器第2部分:交易或认证用测量仪器

2009-01-01

Alternating-current watt-hour meters (for direct connection) -- Part 2: Measuring instruments used in transaction or certification
交流电能表（直接连接用）第2部分:交易或认证用测量仪器

2009-01-01

Alternating-current watt-hour meters (for connection through instrument transformer) -- Part 2: Measuring instruments used in transaction or certification
交流电能表（通过互感器连接）第2部分:交易或认证用测量仪器

2009-01-01