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This standard specifies the technical requirements and testing methods for transformer-operated smart meters used for accurate measurement of active and reactive energy. It defines essential parameters such as accuracy class, communication capabilities, data logging, and power consumption to ensure seamless operation in utility networks. The standard also includes security features to prevent tampering, remote communication functionalities, and interoperability with smart grid applications. Meters conforming to IS 16444 (Part 2) must support bidirectional energy measurement, offer robust protection against voltage surges, and ensure secure data transmission. Testing procedures assess performance under varied load conditions, electromagnetic interference, and compliance with national power distribution standards, making BIS certification a critical requirement.

BIS certification under IS 16444 (Part 2) ensures compliance with national quality and safety standards, strengthening product credibility and acceptance in the market. For manufacturers, certification facilitates regulatory approval, enhances competitiveness, and builds trust among utility providers and consumers. For end users, certified smart meters guarantee accurate billing, seamless communication with energy management systems, and enhanced security against unauthorized access. Certification also streamlines procurement processes for government and private-sector power distribution networks, ensuring standardized and efficient energy metering solutions.