Pennsylvania Code › Title 52 - PUBLIC UTILITIES › Part I - Public Utility Commission › Subpart C - Fixed Service Utilities › Chapter 57 - ELECTRIC SERVICE › Subchapter B - SERVICE AND FACILITIES › Section 57.25 - Facilities for testing meters and instruments

Current through Register Vol. 54, No. 28, July 13, 2024
(a)
Adequate testing
					 facilities.
A public utility shall provide for, and have available,
					 suitable and adequate facilities for testing its meters. Public utilities not
					 maintaining standardizing laboratories may, upon permission from the
					 Commission, have their meters and instruments certified by a standardizing
					 laboratory approved by the Commission.
(b)
Periodic tests of reference
					 standards.
The watthour meter reference standard for the public
					 utility and shall be periodically tested for accuracy and adjusted if necessary
					 by a representative of the Commission at a place the Commission may direct.
					 Immediately after making final adjustment, the tester shall seal and date tag
					 the reference standard and shall furnish the public utility with a correction
					 curve properly dated and signed.
(c)
Periodic tests of watthour
					 standards.
The portable watthour standards, together with other
					 measuring equipment the Commission may require, shall also be tested and
					 adjusted periodically by a representative of the Commission if necessary as the
					 Commission may direct. The tester shall furnish the public utility with a
					 correction curve properly dated and signed.
(d)
Frequency of portable watthour
					 standard check tests.
During the interval between tests by the
					 Commission, the portable watthour standards shall be compared with the
					 reference standard at least every month for induction type meters, and every 3
					 months for the solid state meter standards. The calibration obtained shall be
					 used in determining the accuracy of the service meters. If a portable standard
					 is subject to either a mechanical or electrical shock, it shall be tested
					 before being used.
(e)
Records of check tests and correction curves.
A record of
					 check tests shall be kept showing the condition and accuracy of the watthour
					 standard before and after testing, indicated by the words "as found" and "as
					 left," in form and detail to permit convenient checking of the methods and
					 results. A complete record of the check tests and correction curves furnished
					 by the Commission shall be preserved for 5 years.
(f)
Fees for testing appliances of
					 public utilities.
The Commission will charge and collect from public
					 utilities, for the testing of their instruments of precision and measuring
					 apparatus, fees according to the following schedule:
Service (per each
								item)
Amount (in dollars)
Watt-hour standard:
1. Initial 10 determinations of percentage
								registration of one standard at 60 Hz
75
2. Each additional determination of the same
								standard
10
Indicating instruments:
AC/DC wattmeters, AC resistors, calibrators,
								ammeters and voltmeters
50
Instrument transformers:
1. Voltage transformers-
a. Ratio and phase angle, at 60 Hz on 1 range, 1
								secondary voltage, 1 burden primary VL50KV
50
b. Each additional burden, range or secondary
								voltage
10
2. Current transformers, ration and
								phase angle-
a. 1 range, 1 frequency, 1 burden, secondary
								currents 0.5, 1, 2, 3, 4, 5 A at primary current not over 5000 A
50
b. Each additional secondary current or combination
								of range, frequency and burden
10
Standard Cell Calibrations (each)
25
Potentiometers (each)
250
The provisions of this §
													57.25 issued under the Public
						  Utility Code,
						  66 Pa.C.S. §
														§
														331,
						  501,
						  504 and
						  1501; amended under the
						  Public Utility Code,
						  66 Pa.C.S. §
														§
														501,
						  1501 and
						  1504.
This section cited in 52 Pa. Code §
													57.254 (relating to advanced meter
						  standards).