AMR

(3rd 6 Month Written Test)

Automated Meter Reading

An automated method of reading electric registers (indexes)

Replacing major components or any integral part of a meter socket, current transformer cabinet, riser, mast, line or load side conductor, relocating electric service equipment, upgrading from fuses to breakers (including storm damage).

AUTHORIZED CLOSED LOOP

Authorized use of electric service that is temporarily not being metered.

CLASSIFICATION OF METERING

Commercial, Industrial and Residential

COLD SEQUENCE METERING

(3rd 6 Month Written Test)

A current limiting fuse disconnect ahead of the meter, located on the same wall as th meter within 2 feet of the meter.  

HOT SEQUENCE METERING

(3rd 6 Month Written Test)

The electric meter is connected directly to the service conductors without the use of a fault-current limiting disconnect or meter safety-switch device between the electric meter and the supply source.

DATA PULSES

(3rd 6 Month Written Test)

Output pulses (KYZ) generated by the electric meter for use by the Customer.

HIGH-LEG

(3rd 6 Month Written Test)

The phase having the higher phase voltage to ground on a 4-wire delta-connected service, where the midpoint of one phase winding is grounded.

VOLTAGE TRANSFORMER

(3rd 6 Month Written Test)

An instrument transformer intended for use in the measurement or control of a circuit and designed to have its primary winding connected in parallel with the circuit.

SERVICE MAST

(3rd 6 Month Written Test)

The service mast is the conduit containing the service-entrance conductors where the point of attachment and the connection between the service drop and the service-entrance conductors is located above the roofline. The conduit extends to a point, and the weather head is located, above the roof eave. The conduit passes through the eave of the building or extends past the roofline without passing through the eave. The means of attachment is attached to the service mast.

SERVICE RISER

(3rd 6 Month Written Test)

The service riser is the conduit containing the service-entrance conductors where the point of attachment and the connection between the service drop and the service-entrance conductors is located on a pole or below

POINT OF ATTACHMENT

(3rd 6 Month Written Test)

The point at which the service-drop conductors are attached to a building or other structure.

CLOSED LOOP

 Flat Tap/Jumpered 

(3rd 6 Month Written Test)

Temporary unmetered electric service.

VOLTAGE UNBALANCE

(3rd 6 Month Written Test)

Maximum voltage deviation from average voltage.

COMPANY

The operating Companies of Xcel Energy

CONDUIT

Standard tubular material used for mechanical protection of electrical systems which may be exposed, buried beneath the surface of the ground, or encased in a building structure as required.

CONTRACTOR

Any person, company or corporation acting under contractual agreements for either the Company or for the customer.

CURRENT TRANSFORMER

An instrument transformer designed for the measurement or control of current.

Electric Metallic Tubing

Galvanized Rigid Conduit

(NEC)

Intermediate Metallic Conduit

INSPECTOR

The electrical inspector of the Public Authority.

ISOLATED TRANSFORMER BANK

A transformer bank which provides electrical service to a single customer.

MEANS OF ATTACHMENT

Fittings used to attach service-drop conductors.

(Screw knob, clevice, etc)

METER/METERING EQUIPMENT

The equipment necessary to measure the customer’s electric energy use and demand including meter socket, instrument transformers, protective device and meter.

MULTIPLE METER CENTER

A pre-assembled multiple metering unit or fabricated meter center using meter sockets where two or more customers are metered at a common location.

NEC®

A publication of the National Fire Protection Association, Inc.

NESC®

A publication of the Institute of Electrical and Electronic Engineers, Inc. as adopted by ANSI.

NOMINAL VOLTAGE

Designation of the value of the normal effective difference in potential between any two appropriate conductors of the circuit.

POINT OF DELIVERY

Point where the Company’s electric facilities are first connected to the electric facilities of the customer.

PRIMARY METERING

Metering of service voltages above 480V nominal.

Polyvinyl Chloride

(NEC)

RACEWAY

 (gutter)

Any channel for holding bus bars, cables, or wires, which is designed for this purpose.

RESIDENTIAL METERING

Metering of services used for the exclusive use of the individual customer for domestic purposes.

SECONDARY CONDUCTORS

That part of the Company's distribution system, which connects the secondaries of the Company’s distribution transformers to the service drop or service lateral.

SERVICE

The furnishing of electric energy for the exclusive use of the individual customer.

SERVICE DROP

The overhead service conductors from the last distribution pole or other aerial distribution support to and including the splices connecting to the service-entrance conductors at the building or other structure.

SERVICE-ENTRANCE CONDUCTORS,

The service conductors between the terminals of the customer’s service equipment and the point of connection to the service drop conductors.

SERVICE EQUIPMENT

Necessary equipment, usually consisting of a circuit breaker or fuseable disconnect switch and their accessories,located near the point of entrance of the supply conductors to a building and intended to constitute the main control and means of cutoff for the supply to that building.

SERVICE LATERAL

The underground service conductors between the Company secondary distribution system and/or transformer terminals and the connection to the service-entrance conductors in a terminal box or meter socket located outside the building wall. Where the meter is located in the building and no terminal box exists outside the building, the point of connection shall be considered the point of entrance of the service conductors into the building.

On any New, rewired, altered, or repaired wiring installations intended for connection to the Company's distribution system