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E-26 (rev. 2) Reverification Periods for Electricity Meters and Metering Installations
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Reverification Periods for Electricity Meters and Metering Installations, in PDF format, 81 KB
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Table of Contents
1. Purpose
2. Authority
3. References
4. Definitions
5. Policy
6. Additional Information
Date: 2004-10-04
Bulletin: E-26-E (rev. 2)
Category: Electricity
Supersedes: E-26-E (rev. 1)
Documents: see clause 6.1
1.0 Purpose
The purpose of this bulletin is to communicate the reverification periods for electricity meters and metering installations as established pursuant to the Electricity and Gas Inspection Act and to provide associated policies.
2.0 Authority
2.1 The reverification periods set out in this bulletin have been established in accordance with section 12 of the Electricity and Gas Inspection Act.
2.2 No requirement in this bulletin shall be construed as limiting the powers of the President in his capacity as director under the Electricity and Gas Inspection Act and Regulations.
3.0 References
3.1 Electricity and Gas Inspection Act (R.S. 1985, c. E-4), s. 12.
3.2 Electricity and Gas Inspection Regulations (SOR/86-131) , ss. 3(1), s. 19.
3.3 Bulletin Gen-24: Verification, Reverification and Sealing of Electricity and Gas Metering Installations.
3.4 Provisional Specification PS-E-11: Electricity Meter Pattern Approval Applications - Quality and Reliability Information Requirements.
4.0 Definitions
4.1 New Meter
A meter newly produced by a manufacturer under the controlled conditions and documented procedures of the manufacturer’s quality management system.
4.2 Renewed Meter
A previously-used meter restored to the technical and metrological state of a new meter according to the original manufacturer’s specifications under the controlled conditions and documented procedures of an accredited organization’s quality management system which is recognized by Measurement Canada.
4.3 Reserviced Meter
A previously-used meter subjected to calibration or light repair under the controlled conditions and documented procedures of an accredited organization’s quality management system which is recognized by Measurement Canada.
4.4 Reverification
Any subsequent confirmation of a meter’s conformance to legal requirements following its initial verification of conformance with those same requirements.
4.5 (Initial) Reverification Period
The period within which a new or renewed meter shall be submitted to reverification or alternatively removed from service.
4.6 Extension to a reverification
An amount of time added to the reverification period of a meter or lot of meters which has or have already been in use for a period of time upon determining that the meter or lot of meters conforms to legal requirements. The meter or lot of meters may have been 100 percent-inspected or inspected by authorized statistical sampling methods per clause 3.2, as the case may be.
5.0 Policy
5.1 General
5.1.1 The President of Measurement Canada, in his capacity as director under the Electricity and Gas Inspection Act, will make determinations of meter reverification periods and extensions thereto.
5.1.2 Meters shall be reverified within appropriate periods, established on the basis of their stability of performance, application, and usage. Reverification periods shall be established such that meter inspection or removal is carried out prior to any probable change in accuracy that is of significance in the course of the meters’ use.
5.2 Initial Reverification Periods
5.2.1 For a meter type set out in an item of column I of the table in the Annex, each meter of such type or sub-type shall be submitted to reverification, together with resealing or marking, or to cancellation of the seal or mark, as the case may require, within the period set out in column II of that item from verification, and, subject to clause 5.3, within the same period from each reverification.
5.2.2 For a meter type not set out in an item of column I of the table in the Annex, the meter’s reverification period shall be established in accordance with clause 5.1.
5.3 Extensions to Reverification Periods
5.3.1 For a homogeneous lot of meters in service which is inspected by compliance sampling methods authorized under clause 3.2 and which meets reverification requirements established for this purpose, the reverification period of the meters in the lot shall be extended by an amount of time based on the extent of the lot’s compliance, not to exceed two-thirds of the initial reverification period assigned to each meter.
5.3.2 For a meter which is recalled per its original or a subsequent reverification period, which is not part of lot under clause 5.3.1, and which is reserviced to meet reverification requirements, the reverification period of the meter shall be extended by an amount of time equal to:
a) five-sixths of its initial reverification period, effective January 1, 2005; and
b) two-thirds of its initial reverification period, effective January 1, 2009.
5.3.3 For the purposes of clauses 5.3.1 and 5.3.2, the calculated extension to a reverification period shall be rounded to the nearest integer number of years.
5.4 Shortening of Reverification Periods
A reverification period for a particular meter class, type, or design may be formally shortened to ensure continued accuracy and compliance with legal requirements, if results at preceding inspections are unsatisfactory.
5.5 Lengthening of Reverification Periods
5.5.1 A reverification period for a particular meter class, type, or design may be formally lengthened when all of the following criteria are satisfied:
a) the meter manufacturer, or its representative with the manufacturer’s full support, requests such consideration of Measurement Canada and submits an application in accordance with clause 3.4;
b) the performance results at preceding reverification inspections, including interim inspections performed under designed experiments, provide definite indications that such action will not adversely affect confidence in the accuracy of the meters; and
c) the evidence submitted in accordance with clauses (a) and (b) above is evaluated and found to be acceptable by the President.
5.5.2 A lengthened reverification period may be made retroactive when the requirements of clause 4.2 of PS-E-11 are met.
5.6 Reverification Periods for Combination Meters
In the case of a combination meter that performs, under one cover, the functions of more than one of the meters set out in column I of the table in the Annex, the reverification period for the combination meter shall be that of the individual metering function with the shortest reverification period.
5.7 Reverification Date Calculations
5.7.1 Subject to clause 5.7.2, a meter shall be considered due for reverification on or before December 31 of the calendar year calculated as the sum of the meter’s verification year or reverification year, as the case may be, and the applicable period set out in column II of the table in the annex.
5.7.2 Subject to clause 5.7.3, for a reverification performed in accordance with clause 5.3.1, the meters in the lot, less any nonconforming meters, shall be considered due for reverification on or before December 31 of the calendar year calculated as the sum of the year in which the first sample meter was removed from service and the extension referred to in clause 5.3.1.
5.7.3 Where a lot of meters fails to meet the requirements for an extension of its reverification period, the meters in the lot shall be considered due for reverification on the date established by the previous verification or reverification, as the case may be, unless the President so determines otherwise.
5.7.4 For a reverification performed in accordance with clause 5.3.2, the meter shall be considered due for reverification on or before December 31 of the calendar year calculated as the sum of the year the meter was reverified and the extension calculated as per clauses 5.3.2 and 5.3.3.
6.0 Additional Information
6.1 This bulletin supersedes Consumer and Corporate Affairs Canada - Legal Metrology Branch document “Notice - Electricity Meter Verification Periods” dated 1986-01-25, E-26-E dated 2003-11-10, and E-26-E (rev. 1) dated 2004-01-16.
6.2 For additional information regarding this bulletin, please contact the Senior Program Officer responsible for electricity measurement.
Alan E. Johnston
President
Annexe 1
You will find Annexe 1 in PDF format.
Annexe, in PDF format, 52 KB
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