Single-phase 2-wire and polyphase meters of greater accuracy than in Part 8; not polyphase meters depending on balanced conditions of load or supply.
BS 37-10:1961
Original price was: $264.16.$132.00Current price is: $132.00.
Specification. Electricity meters-Alternating current high precision kilowatt-hour meters for efficiency testing of electrical plant
BSI Group , 12/29/1961
