What is BS EN 50470-3-Electricity metering equipment about?
BS EN 50470 discusses electricity metering equipment. BS EN 50470-3 is the third part of BS EN 50470 that discusses requirements for static meters for active energy. BS EN 50470-3 applies to newly manufactured static watt-hour meters intended for residential, commercial, and light industrial use, of class indexes A, B and C, for the measurement of alternating current electrical active energy in 50 Hz networks.
BS EN 50470-3 applies to static watt-hour meters for indoor and outdoor application, consisting of a measuring element and register(s) enclosed together in a meter case. It also applies to operation indicator(s) and test output(s). BS EN 50470-3 distinguishes between:
- Meters of class indexes A, B and C
- Direct connected and transformer operated meters
- Meters for use in networks equipped with or without earth fault neutralizers
Note: BS EN 50470-3 does not apply to:
- Watt-hour meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems)
- Portable meters
- Reference meters
Who is BS EN 50470-3-Electricity metering equipment for?
BS EN 50470-3 on electricity metering equipment is useful for:
- Electric metering manufacturing
- Quality control personnel
Why should you use BS EN 50470-3-Electricity metering equipment?
Electric meter or energy meter measures the total power consumed over a time interval.
BS EN 50470‑3 provides general requirements and type tests methods. The test levels in BS EN 50470‑3 are regarded as minimum values to guarantee the proper functioning of the Static meters for active energy under normal working conditions. Other test levels in BS EN 50470‑3 might be necessary for special applications and should be agreed on between the user and the manufacturer.
