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PDFWAC 480-100-318

Meter readings, multipliers, and test constants.

(1) Electric utilities must use electric meters or other such devices to accurately record or indicate the quantity of electricity sold to customers. Such measuring devices will allow utilities to calculate a customer's consumption in units of kilowatt hours or other units as filed in the company's tariffs.
(2) Electric utilities that decide to either measure a customer's consumption with a device that employs a multiplier or calculate consumption from recording devices must provide customers, upon request, information sufficient to enable the customer to compute the quantity consumed.
(3) Indirect reading meters and those that operate from instrument transformers must have the multiplier plainly marked on the dial of the instrument or be otherwise suitably marked.
(4) The watt-hour constant for the meter itself must be placed on all watt-hour meters (as specified in ANSI C12.1). Information about the ANSI C12.1 regarding the version adopted and where to obtain it is set out in WAC 480-100-999, Adoption by reference.
[Statutory Authority: RCW 80.01.040 and 80.04.160. WSR 01-11-004 (Docket No. UE-990473, General Order No. R-482), ยง 480-100-318, filed 5/3/01, effective 6/3/01.]
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