Why do you need double meters and double terminals for measurement?

1. Improve the reliability: the metering system is an important part of the power system, so the metering needs two meters and two terminals to ensure the normal operation of the power system when a certain electric energy meter or communication terminal equipment fails, so as to avoid the influence of the metering system failure on the electric energy metering and electricity bill settlement.

2. Improve safety: The purpose of adopting double meters and double terminals in metering is to prevent the electric energy meter or communication terminal equipment from being replaced, and to ensure the authenticity and accuracy of metering data, thus ensuring the fairness of electricity bill settlement.