{HEAD ~ A single sample} per {TAIL ~ mains cycle} applied to load current and supply voltage is sufficient to measure power consumption, energy consumption accumulation, and produce accumulated energy pulses appropriate to measurement of real power, true power and volt ampere power consumed by the load 
{ HEAD ~ A single sample } per { TAIL ~ mains cycle } applied to load current and supply voltage is sufficient to measure power consumption , energy consumption accumulation , and produce accumulated energy pulses appropriate to measurement of real power , true power and volt ampere power consumed by the load
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH