The measurement class of a metering system e.g. above 100kW, below 100kW, unmetered.

BSC defined definition

A classification of Metering Systems which indicates how Consumption is measured i.e.

• Non Half Hourly Metering Equipment (equivalent to Measurement Class “A”)
• Non Half Hourly Unmetered Supplies (equivalent to Measurement Class “B”)
• Half Hourly Metering Equipment at above 100kW Premises (equivalent to Measurement Class “C”)
• Half Hourly Unmetered Supplies (equivalent to Measurement Class “D”)
• Half Hourly Metering Equipment at below 100kW Premises with current transformer (equivalent to Measurement Class “E”)
• Half Hourly Metering Equipment at below 100kW Premises with current transformer or whole current, and at Domestic Premises (equivalent to Measurement Class “F”)
• Half Hourly Metering Equipment at below 100kW Premises with whole current and not at Domestic Premises (equivalent to Measurement Class “G”)

BSC documentation

• BSC Section X, Annex X-2

Further information

• Guidance Note: Change of Measurement Class and Change of Profile Class

Related terms

• 100kw Metering System