BS 8431: Electrical Static Meters for Secondary Metering and Sub-metering.

Energy meters, mainly kWh meters, are a common requirement of electrical control panels, in many cases as part of a multiple function unit. Energy measurement is recognized as an essential element of energy management. This assists with the drive to reduce carbon emissions and to improve the commercial efficiency of manufacturing, commercial organizations and public services.

Although the basic principles of energy management are well understood, for energy to be well managed it needs to be adequately measured.

BS 8431 specifies requirements for newly manufactured electronic secondary meters or sub-meters. It covers meters which measure either electrical energies alone or electrical energies together with other electrical parameters associated with the energy. It applies to meters that measure active energy, apparent energy, reactive energy (capacitive, inductive and/or total), and ampere squared hours (A²h)

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