807 Kar 5:041. Electric

Link to law: http://www.lrc.ky.gov/kar/807/005/041.htm
Published: 2015

      807 KAR 5:041.




Chapter 278


AUTHORITY: KRS 278.280(2)


FUNCTION, AND CONFORMITY: KRS 278.280(2) provides that the commission shall

prescribe rules for the performance of any service or the furnishing of any

commodity by the utility. This administrative regulation establishes general

rules which apply to electric utilities.


      Section 1.

Definitions. For purposes of this administrative regulation:


"Applicant" means for purposes of Section 21 of this administrative

regulation the developer, builder or other person, partnership, association,

corporation or governmental agency applying for the installation of an

underground electric supply system.


"Building" means a structure enclosed within exterior walls or fire

walls, built, erected and framed of component structural parts and designed for

less than five (5) family occupancy.


"Customer" means for purposes of Section 21 of this administrative

regulation the developer, builder or other person, partnership, association,

corporation or governmental agency applying for installation of an underground

electric supply system.


"Customer premises" means the building for which service is intended

or in use.


"Distribution system" means electric service facilities consisting of

primary and secondary conductors, transformers, and necessary accessories and

appurtenances for furnishing electric power at utilization voltage.


"Multiple-occupancy building" means a structure enclosed within

exterior walls or fire walls, built, erected and framed of component structural

parts and designed to contain five (5) or more individual dwelling units.


"Subdivision" means a tract of land which is divided into ten (10) or

more lots for the construction of new residential buildings, or for construction

of two (2) or more new multiple occupancy buildings.


      Section 2.

General Requirements. Every utility shall furnish adequate service and

facilities at rates filed with the commission, and in accordance with administrative

regulations of the commission and applicable rules of the utility. Energy shall

be generated, transmitted, converted and distributed by the utility, and

utilized, whether by the utility or the customer, in such manner as to obviate

undesirable effects upon the operation of standard services or equipment on the

utility, its customers and other utilities.


      Section 3.

Acceptable Standards. A utility shall construct and maintain its plant and

facilities in accordance with good accepted engineering practices. Unless

otherwise specified by the commission, the utility shall use applicable

provisions in the following publications as standards of accepted good

engineering practice for construction and maintenance of plant and facilities,

herein incorporated by reference:

      (1) National

Electrical Safety Code; ANSI C-2. 1990 Edition, available by contacting the

IEEE Service Center, 445 Hoes Lane, P.O. Box 1331, Piscataway, New Jersey

08855-1331. This material is also available for inspection and copying, subject

to copyright law, at the offices of the Public Service Commission, 211 Sower

Boulevard, P.O. Box 615, Frankfort, Kentucky 40602, Monday through Friday

between the hours of 8 a.m. to 4:30 p.m. local time.

      (2) National

Electrical Code; ANSI-NFPA 70. 1990 Edition, available by contacting the

National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts

02169. This material is also available for inspection and copying, subject to

copyright law, at the offices of the Public Service Commission, 211 Sower

Boulevard, P.O. Box 615, Frankfort, Kentucky 40602, Monday through Friday

between the hours of 8 a.m. to 4:30 p.m. local time.

      (3) American

National Standard Code for Electricity Metering; ANSI C-12.1. 1982 Edition,

available by contacting the Institute of Electrical and Electronics Engineers,

Inc., 345 E. 47th Street, New York, New York 10017;

      (4) USA Standard

Requirements, for Instrument Transformers; ANSI Standard C57.13, 1978 Edition,

available by contacting the IEEE Service Center, 445 Hoes Lane, P.O. Box 1331,

Piscataway, New Jersey 08855-1331. This material is also available for

inspection and copying, subject to copyright law, at the offices of the Public

Service Commission, 211 Sower Boulevard, P.O. Box 615, Frankfort, Kentucky

40602, Monday through Friday between the hours of 8 a.m. to 4:30 p.m. local


      (5) The adoption

and applicability of the National Electrical Code as a standard of utility

construction is limited to electric utility auxiliary buildings which are not

an integral part of a generating plant, substation, or control center. Integral

part is defined as essential to the operation or necessary to make complete.

      (6) All

materials incorporated by reference above are available for public inspection

and copying at the Public Service Commission of Kentucky, 211 Sower Boulevard,

Frankfort, Kentucky 40601, between the hours of 8 a.m. and 4:30 p.m.


      Section 4.

Generating Station Meter Records. Every utility shall install such watt-hour

meters as necessary to obtain a record of output of its generating station or

stations. Every utility purchasing electrical energy shall install such meters

as necessary to furnish a proper record of its purchases, unless such

instruments are installed by the selling company.


      Section 5.

Maintenance or Continuity of Service. (1) Each utility shall make all

reasonable efforts to prevent interruptions of service, and when such

interruptions occur shall endeavor to reestablish service with the shortest

possible delay. Whenever service is necessarily interrupted or curtailed for

the purpose of working on equipment, it shall be done at a time if practicable,

that will cause least inconvenience to customers, and those customers which may

be seriously affected shall be notified in advance, except in cases of


      (2) Each utility

shall keep a record of: time of starting and shutting down the principal units

of its power station equipment and feeders for major divisions; indications of

sufficient switchboard instruments to show voltage and quantity of the load;

all interruptions to service affecting the entire distribution system of any

single community or important division of a community; and date and time of

interruption, date and time of restoring service, and when known, cause of each


      (3) When

complete distribution systems or portions of communities have service furnished

from unattended stations, the utility shall keep these records to the extent

practicable. The records of unattended stations shall show interruptions which

require attention to restore service, with estimated time of interruption.

Breaker or fuse operations affecting service shall also be indicated even

though duration of interruption may not be known.


      Section 6.

Voltage and Frequency. (1) Each utility shall adopt a standard nominal voltage

or standard nominal voltages, as required by its distribution system for its

entire constant-voltage service, or for each of several districts into which

the systems may be divided, which standard voltages shall be stated in every

schedule of rates of each utility or in its terms and conditions of service.

      (2) Voltage at

the customer's service entrance or connection shall be maintained as follows:

      (a) For service

rendered primarily for lighting purposes, variation in voltage between 5 p.m.

and 11 p.m. shall not be more than five (5) percent plus or minus the nominal

voltage adopted, and total variation of voltage from minimum to maximum shall

not exceed six (6) percent of the nominal voltage.

      (b) 1. For

service rendered primarily for power purposes, voltage variation shall not at

any time exceed ten (10) percent above or ten (10) percent below standard

nominal voltage.

      2. Where a

limited amount of lighting is permitted under these contracts, the entire load

shall be considered power as far as voltage variation is concerned.

      (c) Where

utility distribution facilities supplying customers are reasonably adequate and

of sufficient capacity to carry actual loads normally imposed, the utility may

require that starting and operating characteristics of equipment on customer

premises shall not cause an instantaneous voltage drop of more than four (4)

percent of standard voltage nor cause objectionable flicker in other customer's


      (d) Equipment

supplying constant current circuits shall be adjusted to furnish as nearly as

practicable the rated current of the circuit supplied, and in no case shall the

current vary more than four (4) percent above or below the circuit rating.

      (3) Each utility

supplying alternating current shall adopt a standard frequency of sixty (60)

hertz which shall be stated in the schedule of rates of each utility.

      (4) A frequency

meter monitor shall be maintained for each system frequency. Accuracy of the

frequency meter shall be checked each day and frequency shall be governed

within limits as set forth in this section so that the frequency meters on the

system are correct once daily.

      (5) The

following shall not be considered a violation of this section: Voltage

variations in excess of those caused by operation of power apparatus on

customer premises which require large starting currents and affect only the

user of such apparatus, by action of the elements and infrequent and

unavoidable fluctuations of short duration due to system operation.

      (6) Greater

variation of voltage than specified under this section may be allowed if

service is supplied directly from a transmission line, if emergency service, or

if in a limited or extended area in which customers are widely scattered or

business done does not justify close voltage administrative regulation. In such

cases the best voltage administrative regulation shall be provided that is

practicable under the circumstances.


      Section 7.

Voltage Surveys and Records. (1) Every utility shall have two (2) or more

portable indicating voltmeters and two (2) or more recording or graphic

voltmeters of type and capacity suited to the voltage supplied. Every utility

shall make a sufficient number of voltage surveys to indicate the service

furnished from each center of distribution. To satisfy the commission of its

compliance with voltage requirements, each utility shall keep at least one (1)

of these instruments in continuous service at some representative point on its

system. All records of the most recent voltage surveys taken within the last

three (3) calendar years shall be available for inspection by the utility's

customers and commission staff.

      (2) Each graphic

recording voltmeter shall be checked with a working standard indicating

voltmeter when it is placed in operation and when it is removed, or

periodically if the instrument is in a permanent location. Notations on each

chart shall indicate beginning time and date of registration and when the chart

was removed, as well as the point where voltage was taken, and results of the

check with indicating voltmeter.


      Section 8.

Servicing Utilization Control Equipment. (1) Utilities shall service and

maintain any equipment they use on customer's premises and shall adjust

thermostats, clocks, relays, or time switches, if such devices must be so

adjusted to provide service in accordance with their rate provisions.

      (2) Time

switches used by the utility for controlling equipment such as water heaters

and street lights shall be of such quality that the timing mechanism may be

adjusted to be accurate within ten (10) minutes per month. Time switches used

by the utility for controlling street lighting or display lighting shall be

inspected or monitored at least once a month and, if in error, adjusted. Time

switches shall also be adjusted upon complaint if found in error or when

service interruptions cause them to be in error by one-half (1/2) hour or more.

      (3) Time

switches and control devices used by the utility for controlling off-peak

appliances shall be inspected or monitored periodically and adjusted if in

error, and also adjusted upon complaint if found in error or whenever service

interruptions result in error of two (2) hours or more or in supplying service

to off-peak appliances during peak periods.


      Section 9.

Measuring Customer Service. (1) All energy sold within the State of Kentucky

shall be measured by commercially acceptable measuring devices owned and

maintained by the utility, except where it is impracticable to meter loads,

such as multiple street lighting, temporary or special installations, in which

case consumption may be calculated. The utility shall meter its own electrical

energy use except when such service is for emergency or incidental lighting

such as outdoor substations, or at remote points on its transmission or distribution

lines. All other electrical quantities which the utility's tariff indicates are

to be metered shall be metered by commercially acceptable instruments owned and

maintained by the utility.

      (2) The utility

shall regard each point of delivery as an independent customer and meter the

power delivered at each point. Combined meter readings shall not be taken at

separate points, nor shall energy used by more than one (1) residence or place

of business on one (1) meter be measured to obtain a lower rate.

      (3) Metering

facilities located at any point where energy may flow in either direction and

where the quantities measured are used for billing purposes shall consist of

meters equipped with ratchets or other devices to prevent reverse registration

and be so connected as to separately meter energy flow in each direction.

      (4) Whenever

possible reactive meters required to meet the conditions of a given rate

schedule shall be either all ratcheted or none shall be ratcheted. Reactive

metering shall not be employed for determining average power factor for billing

purposes where energy may flow in either direction or where a customer may

generate an appreciable amount of his own requirements.

      (5) Meters which

are not direct reading and those operating from instrument transformers shall

have the multiplier plainly marked on the dial of the instrument or otherwise

suitably marked and all charts taken from recording meters shall be marked with

the record date, meter number, customer and chart multiplier.

      (6) The register

ratio shall be marked on all electro-mechanical meter registers. Meters already

in service may be so marked when they are tested.

      (7) The

watt-hour constant for the meter itself shall be placed on all watt-hour

meters. Meters already in service shall be so marked when they come to the

meter shop.


      Section 10.

Service Connections. (1) The utility shall pay all costs of a service drop or

an initial connection to its line with the customer's service outlet, except

the attachment of the wire support to customer premises. When the customer's

outlet is inaccessible to the utility, or the customer desires that the service

outlet on any building be at a location other than that closest to the

utility's line, cost of such special construction as necessary shall be borne

by the customer. The utility shall furnish at its expense an amount of wire,

labor and material equivalent to that furnished for a like service connection

not requiring such special construction.

      (2) Underground

service requirements and administrative regulations shall be established by

each utility and be on file with the commission.

      (3) All

equipment and material furnished by the utility at its own expense shall remain

the property of the utility and may be removed by it at any reasonable time

after discontinuance of service.


      Section 11.

Distribution Line Extensions. (1) Normal extensions. An extension of 1,000 feet

or less of single phase line shall be made by a utility to its existing

distribution line without charge for a prospective customer who shall apply for

and contract to use the service for one (1) year or more and provides guarantee

for such service. The "service drop" to customer premises from the

distribution line at the last pole shall not be included in the foregoing

measurements. This distribution line extension shall be limited to service

where installed transformer capacity does not exceed 25 KVA. Any utility which

extends service to a customer who may require polyphase service or whose

installed transformer capacity will exceed 25 KVA may require the customer to

pay in advance additional cost of construction which exceeds that for a single

phase line where the installed transformer capacity does not exceed 25 KVA.

      (2) Other


      (a) When an

extension of the utility's line to serve an applicant or group of applicants

amounts to more than 1,000 feet per customer, the utility may, if not

inconsistent with its filed tariff, require total cost of the excessive footage

over 1,000 feet per customer to be deposited with the utility by the applicant

or applicants, based on the average estimated cost per foot of the total


      (b) Each

customer receiving service under such extension will be reimbursed under the

following plan: Each year, for a refund period of not less than ten (10) years,

the utility shall refund to the customer(s) who paid for the excessive footage

the cost of 1,000 feet of extension in place for each additional customer

connected during the year whose service line is directly connected to the extension

installed and not to extensions or laterals therefrom. Total amount refunded

shall not exceed the amount paid the utility. No refund shall be made after the

refund period ends.

      (c) For

additional customers connected to an extension or lateral from the distribution

line, the utility shall refund to any customer who paid for excessive footage

the cost of 1,000 feet of line less the length of the lateral or extension.

      (3) An applicant

desiring an extension to a proposed real estate subdivision may be required to

pay the entire cost of the extension. Each year, for a period of not less than

ten (10) years, the utility shall refund to the applicant who paid for the

extension a sum equivalent to the cost of 1,000 feet of the extension installed

for each additional customer connected during the year. Total amount refunded

shall not exceed the amount paid to the utility. No refund shall be made after

the refund period ends.

      (4) Nothing

contained herein shall be construed as to prohibit the utility from making extensions

under different arrangements if such arrangements have been approved by the


      (5) Nothing

contained herein shall be construed to prohibit a utility from making at its

expense greater extensions than herein prescribed, if similar free extensions

are made to other customers under similar conditions.

      (6) Upon

complaint to and investigation by the commission, a utility may be required to

construct extensions greater than 1,000 feet upon a finding by the commission

that such extension is reasonable.


      Section 12.

Distribution Line Extensions to Mobile Homes. (1) All extensions of up to 150

feet from the nearest distribution line shall be made without charge.

      (2) Extensions

greater than 150 feet from the nearest distribution line and up to 300 feet

shall be made if the customer pays the utility a "customer advance for

construction" of fifty (50) dollars in addition to any other charges

required by the utility for all customers. This advance shall be refunded at

the end of one (1) year if service to the mobile home continues for that length

of time.

      (3) For

extensions greater than 300 feet and less than 1,000 feet from the nearest

distribution line, the utility may charge an advance equal to reasonable costs

incurred by it for that portion of service beyond 300 feet plus fifty (50)

dollars. Beyond 1,000 feet the extension policies set forth in Section 11 of

this administrative regulation shall apply.

      (a) This advance

shall be refunded to the customer over a four (4) year period in equal amounts

for each year service is continued. The customer advance for construction of

fifty (50) dollars shall be added to the first of four (4) refunds.

      (b) If service

is discontinued for a period of sixty (60) days, or the mobile home is removed

and another does not take its place within sixty (60) days, or is not replaced

by a permanent structure, the remainder of the advance shall be forfeited.

      (c) No refunds

shall be made to any customer who did not make the advance originally.

      (4) If a utility

implements specific requirements pertaining to mobile homes, such requirements

shall be subject to approval by the commission and comply with the provisions

of this administrative regulation.


      Section 13.

Testing Equipment and Standards. (1) Each utility shall maintain sufficient

laboratories, meter testing shops, standards, instruments and facilities to

determine accuracy of all types of meters and measuring devices used by the

utility except as provided in 807 KAR 5:006, Section 17.

      (2) The

following testing equipment shall be available as minimum requirements for each

utility or agency making tests or checks for a utility pursuant to 807 KAR

5:006, Section 17(2):

      (a) One (1) or

more working watt-hour standards and associated devices of capacity and voltage

range adequate to test all watt-hour meters used by the utility.

      (b) One (1) or

more watt-hour standards, which shall be the utility's master watt-hour

standards, used for testing the working watt-hour standards of the utility.

These standards shall be of an approved type, shall be well compensated for

both classes of temperature errors, practically free from errors due to

ordinary voltage variations, and free from erratic registration. These master

watt-hour standards shall be of capacity and voltage range adequate to test all

working watt-hour standards at all loads and voltages at which they are used.

These standards shall be kept permanently at one place and not used for routine


      (c) Working

indicating instruments, such as ammeters, voltmeters and watt-meters, of such

various types required to determine the quality of service to customers.

      (d) A voltmeter

and ammeter, which shall be master indicating instruments, and which shall be

used for testing of working indicating and recording instruments. These

instruments shall be of an approved type and of accuracy class and range

sufficient to determine accuracy of working instruments to within five-tenths

(0.5) percent of all ranges and scale deflections at which working instruments

are used. They shall be kept permanently at one place and not used for routine


      (3) The

utility's master watt-hour standards shall not be in error by more than plus or

minus three-tenths (0.3) percent at 100 percent power factor, nor more than

plus or minus five-tenths (0.5) percent at fifty (50) percent power factor at

loads and voltages at which they are used, and shall not be used to check or

calibrate working standards unless the master standard has been certified as to

accuracy by the commission within the preceding twelve (12) months. Each master

watt-hour standard shall have a history card and calibration data available,

and when used to calibrate working standards, correction for any error of the

master standard shall be applied.

      (4) All working

watt-hour standards when regularly used shall be compared with a master

standard at least once in every four (4) weeks. Working watt-hour standards

infrequently used shall be compared with a master standard before they are


      (5) Working

watt-hour standards shall be adjusted, if necessary, so that their accuracy

will be within plus or minus three-tenths (0.3) percent at 100 percent power

factor and within plus or minus five-tenths (0.5) percent at fifty (50) percent

lagging power factor at all voltages and loads at which the standard may be

used. A history and calibration record shall be kept for each working watt-hour

standard showing all pertinent data and name of person performing tests.

      (6) After having

adjusted working watt-hour standards to the accuracy specified above, service

measuring equipment shall be adjusted to within the accuracies required,

assuming working watt-hour standards to be 100 percent accurate.

      (7) If

calibration charts are attached to working watt-hour standards and the error

indicated is applied to all tests run and the accuracy on any range has not

varied more than two-tenths (0.2) percent during the past twelve (12) regular

test periods, accuracy limits may be extended to plus or minus five-tenths

(0.5) percent at 100 percent power factor and plus or minus seven-tenths (0.7)

percent at fifty (50) percent lagging power factor at all voltages and loads at

which the standard may be used.

      (8) The

utility's master indicating instruments shall not be in error by more than plus

or minus five-tenths (0.5) percent of indication at commonly used scale

deflections and shall not be used to check or calibrate working indicating

instruments unless the master instrument has been checked and adjusted, if

necessary, and certified as to accuracy by the commission within the preceding

twenty-four (24) months. A calibration record shall be maintained for each


      (9) All working

indicating instruments shall be checked against master indicating instruments

at least once in each six (6) months. If the working instrument is found

appreciably in error at zero or in error by more than one (1) percent of

indication at commonly used scale deflections, it shall be adjusted. A

calibration record shall be maintained for each instrument showing all

pertinent data and name of person performing tests.


      Section 14.

Check of Standards by Commission. (1) Each utility, and/or agency making tests

or checks for a utility, shall submit to the commission Meter Standards

Laboratory, its master watt-hour standard once in each year, and its master

indicating voltmeter and ammeter once in each two (2) years.

      (2) At the

discretion of the commission any or all of these required tests may be made at

the utility's or agency's testing facility by means of portable transfer

standards. If the standards satisfy the requirements of the commission a

Certificate of Accuracy shall be issued by the commission's Division of


      (3) Each utility

which normally checks its own master watt-hour standards and master indicating

instruments against primary standards such as precision watt-meters, volt

boxes, resistances, standard cells, potentiometers, and timing devices, shall

calibrate the master watt-hour standards and indicating instruments before they

are submitted to the commission for test, and attach to them a record of such



      Section 15.

Testing of Metering Equipment. (1) Testing of any unit of metering equipment

shall consist of a comparison of its accuracy with a standard of known

accuracy. All metering equipment shall be in good order, and shall be adjusted

to as close to zero error as possible.

      (2) No meter or

measuring device shall be deliberately set in error by any amount. Because of

unavoidable irregularities of work done on a commercial scale, some accuracy

tolerance shall be allowed. Meters shall be set as near as practicable to 100

percent accuracy but in no case shall the inaccuracy exceed one (1) percent.

Further, meters with defective parts shall be repaired regardless of their


      (3) Metering

equipment, including instrument transformers and demand meters, shall be tested

for accuracy prior to being placed in service, periodically in accordance with

the schedule below, upon complaint, when suspected of being in error, or when

removed from service for any cause.

Period Test Schedule






Single phase

8 years


3 wire network

8 years



6 years


Meters used with instrument




Single phase

6 years



4 years


Demand Meters




block-interval and lagged-

demand meters

same as associated

watt-hour meter

Graphic and pulse


recording demand


2 years





Current: high burden


same as associated

watt-hour meter

Potential: secondary

voltage test

same as associated

watt-hour meter

Var-hour Meters

same as associated

watt-hour meter


Direct Current

Watt-hour Meters:



Up to and including

6 KW

4 years


Over 6 KW through

100 KW

2 years


Over 100 KW

1 year


      (4) Tests may be

made at a meter shop, on the customer's premises, or in a mobile shop.


      Section 16.

Sample Testing of Single Phase Meters. A utility desiring to adopt a scientific

sample meter testing plan for single phase meters shall submit its application

to the commission for approval. Upon approval the sample testing plan may be

followed in lieu of the periodic test prescribed in Section 15(3) of this

administrative regulation. The plan shall include the following:

      (1) Meters shall

be divided into separate groups to recognize differences in operating

characteristics due to changes in design, taking into consideration date of

manufacture and serial number.

      (2) The sampling

procedure shall be based upon accepted statistical principles.

      (3) The same

sampling procedure shall be applied to each group.

      (4) Each utility

authorized to test meters by sample meter testing plan shall comply with the

following conditions:

      (a) The number

of meters in addition to the sample shall be taken from those meters in each

group longest in service since last test unless a particular meter type is

known to be increasing the percentage of meters requiring test for the sample

group. In such a case where a particular meter type is increasing the

percentage of meters requiring test in any group, these meters may be selected

first regardless of test date with any additional tests as required for that

group coming from those in that group longest in service since last test. Each

year the utility shall use the following table to determine the percentage of

the total meters in each group to be tested.

Percentage of Meters

Within Limits of 2%

Fast or Slow

(Indicated by Sample)

Percentage of Meters

to be Tested the

Next Year






















Less than



      (b) Provided,

however, that no meter shall remain in service without periodic test for a

period longer than twenty-five (25) years.

      (5) Whenever a

meter is found to be more than two (2) percent fast or slow, refunds or back

billing shall be made for the period during which the meter error is known to

have existed or if not known for one-half (1/2) the elapsed time since the last

test but in no case to exceed three (3) years. This provision shall apply only

when sample testing of single phase meters has been approved by the commission

and utilized by the utility.


      Section 17. Test

Procedures and Accuracy Requirements. (1) Meters and associated devices shall

be tested at the loads indicated below and adjusted as close as practicable to

zero error when found to exceed the tolerance prescribed below.

AC Watt-hour Meters

% of Test Current

Power Factor

Allowable Tolerance



+ or - 1.0%



+ or - 1.0%



+ or - 1.0%

DC Watt-hour Meters

% of Test Current


Allowable Tolerance







      (a) Only one (1)

test run shall normally be required at each test configuration. However if the

test indicates the meter is more than two (2) percent in error fast or slow,

additional tests shall be made to verify accuracy prior to refunding or back

billing the customer.

      (b) When a meter

is tested on complaint or request, additional test runs shall be made and care

exercised to insure that any trouble with the meter will be detected.

      (c) For refund

and back billing purposes, accuracy of the meter shall be determined by adding

the average registration at light load (ten (10) percent of test current) and

the average registration at full load (100 percent of test current) and

dividing by two (2).

      (2) Demand

meters. A demand meter, demand register, or demand attachment used to measure

customer's service shall:

      (a) Be in good

mechanical and electrical condition.

      (b) Have proper

constants, indicating scale, contact device, and resetting device.

      (c) Not register

at no load.

      (d) Be accurate

to the following degrees:

      1. Graphic

meters which record quantity-time curves and integrated-demand meters shall be

accurate to within plus or minus two (2) percent of full scale throughout their

working range. Timing elements measuring specific demand intervals shall be

accurate to within plus or minus two (2) percent and the timing element which

serves to provide a record of the time of day when demand occurs shall be

accurate to within plus or minus four (4) minutes in twenty-four (24) hours.

      2. Lagged-demand

meters shall be accurate to within plus or minus two (2) percent at final


      (3) Instrument


      (a) Instrument

transformers used in conjunction with metering equipment to measure customer's

service shall:

      1. Be in proper

mechanical condition and have electrical insulation satisfactory for the

service on which used.

      2. Have

characteristics such that the combined inaccuracies of all transformers

supplying one (1) or more meters in a given installation shall not exceed the



100% Power Factor

50% Power Factor

10% Current

100% Current

10% Current

100% Current

Purchased after Jan.

1, 1942





Purchased prior to

Jan. 1, 1942





      (b) Meters used

in conjunction with instrument transformers shall be adjusted so that overall

accuracies will come within the limits specified in this administrative


      (c) Instrument

transformers shall be tested with the meter with which they are associated by

making an overall test, or may be checked separately. If transformers are

tested separately, meters shall also be checked to see that overall accuracy of

installation is within the prescribed accuracy requirements.

      (d) Results of

tests of instrument transformers shall be kept on record and be available for

use during the life of the transformer.

      (e) Phase

shifting transformers shall have secondary voltages under balanced line voltage

conditions within one (1) percent plus or minus of the voltage impressed on the



      Section 18.

Location of Meters. (1) Meters shall be installed in a clean, dry, safe,

convenient place as free as possible from vibration. Meters shall be easily

accessible for reading, testing, and making necessary adjustments and repairs,

and where indoor type meters are necessary they shall not be placed in coal or

wood bins or on partitions forming bins, nor on any unstable supports. Unless

absolutely unavoidable, meters shall not be installed in attics, sitting rooms,

bathrooms, bedrooms, restaurant kitchens, over doors, over windows, or in any

location where visits of the meter reader or tester will cause annoyance to the

customer or a severe inconvenience to the utility.

      (2) Districts

subject to flood are excepted from this rule as far as it applies to the

location of meters.

      (3) Proper

provision shall be made by the customer for installation of the utility's

meter. Unless the meter is to be mounted upon a panel or installed within a

cabinet, such provision shall consist of a board not less than three-quarters

(3/4) of an inch in thickness which shall be mounted not less than five (5) or

not more than seven (7) feet from the floor, and in general as near as possible

to point of entrance of service. At least six (6) inches clear space shall be

available, on all sides of the meter board and not less than thirty (30) inches

in front of it. The above provisions as to method of mounting and height from

floor do not apply to the installation of weatherproof outdoor meters. Electric

meters shall not be installed close to either water or gas meters or anything

liable to damage the meter, thereby constituting a hazard to customer's safety

and continuous service.

      (4) When more

than one (1) meter is installed without a meter cabinet in the same building,

proper space shall be allotted and provision made by the customer for locating

the meters at one (1) place. When a number of meters are placed in the same

cabinet or upon the same board, each meter shall be tagged or marked to

indicate the circuit metered by it.


      Section 19.

Overhead and Underground Wire Entrances. (1) The overhead wire entrance shall

be located on the exterior of the building nearest the utility's lines at a

point not less than twelve (12) nor more than thirty (30) feet above the

ground. When proper ground clearance cannot be obtained due to height of

building, a proper supporting structure shall be provided by the customer

unless arrangements can be made with the utility whereby their overhead service

wires can be carried to the building in such a manner that these wires will not

constitute an obstruction to free passage of vehicles or fire fighting


      (2) Approval

shall be obtained from the utility as to the proper location for a service


      (3) New service

drops, both overhead and underground, shall be installed in accordance with the

National Electrical Safety Code.


      Section 20.

Operation of Illegal Gambling Devices. (1) When an electric utility, subject to

the jurisdiction of this commission, is notified in writing by a federal or

state law enforcement agency, the Attorney General of Kentucky, a

Commonwealth's Attorney or a County Attorney acting in his official capacity,

that electric energy furnished by it is being used or will be used for

operating an illegal gambling device, it shall discontinue rendering electric

service to such customer, after reasonable notice to the customer. No damages,

penalty or forfeiture, civil or criminal, shall be found against any electric

utility for any act done in compliance with any such notice received from the

law enforcement agency or officer. Nothing in this section shall be deemed to

prejudice the right of any person affected thereby to secure an appropriate

judicial determination that such service should not be discontinued, or should

be restored.

      (2) As provided

by KRS 278.230, any electric utility subject to commission jurisdiction shall

furnish to the commission upon request any records or information in the

possession of such electric utility that may assist in the enforcement of this



      Section 21.

Underground Electric Distribution Systems for New Residential Customers. (1)

Purpose of rules. To formulate requirements for underground electric

distribution systems for all new customers of those systems which will insure

safe and adequate service and which will be uniformly applicable within a

utility's service area.


Applicability. New residential customers and subdivisions as defined below

after the effective date of this rule.

      (3) Rights of

way and easements.

      (a) The utility

shall construct, own, operate and maintain distribution lines only along

easements, public streets, roads and highways which are by legal right

accessible to the utility's equipment and which the utility has legal right to

occupy, and on public lands and private property across which rights of way and

easements satisfactory to the utility may be obtained without cost or

condemnation by the utility.

      (b) Rights of

way and easements suitable to the utility for underground distribution

facilities shall be furnished by the applicant in reasonable time to meet

service requirements. The utility may require that the applicant make the area

in which underground distribution facilities are to be located accessible to

the company's equipment, remove all obstructions from such area, stake to show

property lines and final grade, perform rough grading to reasonable

approximation of final grade, and maintain clearing and grading during

construction by the utility. The utility may require that suitable land rights

be granted to it, obligating the applicant and subsequent property owners to

provide continuing access to the utility for operation, maintenance or

replacement of its facilities, and to prevent any encroachment in the utility's

easement or substantial changes in grade or elevation.

      (4) Installation

of underground distribution system within new subdivision.

      (a) Where

appropriate contractual arrangements have been made, the utility shall install

within the subdivision an underground electric distribution system of

sufficient capacity and suitable materials which, in its judgment, will assure

that the property owners will receive safe and adequate electric service for

the foreseeable future.

      (b) Facilities

required to be underground:

      1. All single

phase conductors installed by the utility shall be underground. Appurtenances

such as transformers, pedestal-mounted terminals, switching equipment and meter

cabinets may be placed above ground.

      2. Three (3)

phase primary mains or feeders required within a subdivision to supply local

distribution or to serve individual three (3) phase loads may be overhead

unless underground is required by governmental authority or chosen by the

applicant, in either of which case the differential cost of underground shall

be borne by the applicant.

      (c) If the

applicant has complied with the requirements herein and with the utility's

specifications on file with the commission, and has given the utility not less

than 120 days written notice prior to anticipated date of completion (i.e.,

ready for occupancy) of the first building in the subdivision, the utility

shall complete installation thirty (30) days prior to estimated completion

date. (Subject to weather and ground conditions and availability of materials

and barring extraordinary or emergency circumstances beyond reasonable control

of the utility.) However, nothing in these administrative regulations shall be

interpreted to require the utility to extend service to portions of

subdivisions not under active development.

      (5) Schedule of


      (a) Within sixty

(60) days after the effective date of these rules, each utility shall file with

the commission a statement setting forth the utility's policy with respect to

electric underground extensions. Such policy shall provide for payment by the

applicant for the difference between the cost of providing underground

facilities and that of providing overhead facilities. The payment made by

applicant shall be expressed in terms of an amount per foot of conductor or

other appropriate measure.

      (b) The

utility's policy as filed with the commission shall set forth an

"estimated average cost differential," if any, between the average or

representative cost of underground distribution systems and of equivalent

overhead distribution systems within the utility's service areas. The payment

made by applicant as provided for in paragraph (a) of this subsection shall not

be more than the estimated average cost differential and shall be


      (c) Detailed

supporting data used to determine estimated average cost differential shall be

concurrently filed by the utility with the commission and shall be updated


      (d) Applicant

may be required to deposit the entire estimated cost of the extension. If this

is done, the amount deposited in excess of the normal charge for underground

extensions, as provided in paragraph (a) of this subsection, shall be refunded

to the applicant over a ten (10) year period as provided in Section 11 of this

administrative regulation.

      (e) Upon

agreement by both parties, if the applicant chooses to perform all necessary

trenching and backfilling in accordance with utility specifications, the

utility shall credit applicant's cost in an amount equal to the utility's cost

for trenching and backfilling.

      (f) Utility

extension from the property or boundary of the subdivision to its existing

supply facilities shall normally be made overhead, and any deposit required for

that extension is subject to refund under Section 11 of this administrative

regulation. Upon request, such extension may be made underground, if the

applicant agrees to pay the excess cost for the underground extension, which

excess cost shall be nonrefundable.

      (g)1. Point of

service shall be that point where utility facilities join customer facilities,

irrespective of the location of the meter. Such point of service shall normally

be either at the property line or at the corner of the building nearest the

point at which underground systems enter the property to be served, depending

upon whether the utility or the customer owns the underground service lateral.

      2. If

established utility practice dictates service termination at the customer's

property line, the utility shall credit the applicant fifty (50) dollars or the

equivalent cost of an overhead service line to the applicant's meter base, whichever

is greater.

      3. Where

established utility practice does not dictate service termination at the

customer property line, the utility shall include in its underground plan the

furnishing, installation, ownership, and maintenance of the service lateral to

the meter base providing the applicant installs in the building adequate

electric service entrance capacity to the satisfaction of the utility to assure

that the underground service conductors will be adequate to handle present and

future load requirements of the building. In this instance the utility will

determine the size and type of service lateral conductors and appurtenances to

be used in any installation.

      4. If, by mutual

agreement of the parties, service terminates at some other point on the building

or property, the applicant shall pay the full cost of any additional extension

required in excess of that provided for in paragraph (g)1, 2 and 3 of this


      (h) When an

existing utility-owned supply circuit or service lateral requires replacement

or reinforcement due to added loads, etc., the utility at its expense will

replace or reinforce it.

      (i) Nothing in

this administrative regulation shall be construed to prevent any utility from

assuming any part of the cost differential of providing underground

distribution systems within subdivisions, provided the utility demonstrates to

the commission that such practice will not result in increased rates to the

general body of rate payers.

      (j) The utility

shall not be obligated to install any facility within a subdivision until

satisfactory arrangements for payment of charges have been completed by the


      (6) Cooperation

by applicant. Charges specified in these rules are based on the premise that

each applicant will cooperate with the utility in an effort to keep the cost of

construction and installation of the underground electric distribution system

as low as possible and make satisfactory arrangements for payment of the above

charges prior to installation of the facilities.

      (7) Construction.

All electrical facilities shall be installed and constructed to comply with

applicable codes, rules and administrative regulations of the commission.


      Section 22.

Deviations from Rules. In special cases for good cause shown the commission may

permit deviations from these rules. (8 Ky.R. 814; eff. 4-7-1982; Am. 16 Ky.R.

2046; 2430; eff. 6-10-1990; 17 Ky.R. 2507; eff. 4-4-1991; TAm 1-30-2013.)
Read Entire Law on www.lrc.ky.gov