GB/T 17215.821-2017 Electricity metering equipment (AC)—Acceptance inspection—Part 21: Particular requirements for electromechanical meters for active energy (classes 0.5, 1 and 2) (English Version)
This part of GB/T 17215.8 specifies the special requirements for the acceptance inspection of newly manufactured electromechanical active energy meters (class 0.5, class 1 and class 2) (hereinafter referred to as "instrument") that are directly connected or connected through transformers , the delivery quantity of the same batch of these instruments shall not be less than 50 units. For the acceptance method of less than 50 units delivered in the same batch, it should be negotiated between the manufacturer and the user. The process described here is mainly for the acceptance inspection between the producer and the consumer.