PEC CHAPTER 2

Grounded Conductor

A conductor intentionally connected to ground.

Identification of Terminals

Requirements for marking grounded conductor terminals.

Multiple Circuits

More than one neutral conductor in an enclosure.

Ungrounded Circuit Conductor

Conductor not connected to ground, carrying current.

Wire Markers

Labels used to identify circuit conductors.

Cable Ties

Fasteners used to group conductors together.

Premises Wiring Systems

Electrical wiring systems within a building.

Grouping Requirement

Conductors must be identified or grouped together.

Exception No. 1

No grouping needed if circuit is obvious.

Exception No. 2

No grouping needed in certain conduit scenarios.

Insulated Grounded Conductor

Grounded conductor with insulation for protection.

Sizes 14 mm² or Smaller

Specific size for insulated grounded conductors.

Continuous White Finish

Outer finish indicating a grounded conductor.

Continuous Gray Finish

Alternative outer finish for grounded conductors.

Three Continuous Stripes

Identification method for grounded conductors.

Colored Tracer Threads

Threads indicating manufacturer on grounded conductors.

Mineral-Insulated Cable

Type of cable requiring distinctive marking.

Electrical Connection

Connection capable of carrying current.

Listed Utility-Interactive Inverters

Inverters allowed without a grounded conductor.

Neutral Conductors

Conductors carrying current back to the source.

Fixture Wire

Wire used for connecting fixtures, must comply.

Aerial Cable Identification

Specific identification for aerial cable conductors.

Grounded Conductor

Conductor intentionally connected to ground for safety.

22 mm² or Larger

Minimum size for insulated grounded conductors.

Continuous White Outer Finish

Identification method for grounded conductors.

Continuous Gray Outer Finish

Alternative identification for grounded conductors.

Three White or Gray Stripes

Marking method on non-green insulated conductors.

Distinctive Marking

White or gray marking at conductor terminations.

Flexible Cord Identification

Grounded conductors in flexible cords marked white/gray.

Grounded Circuit Conductor

Conductor used exclusively for grounding purposes.

Different Systems Identification

Distinct identification for grounded conductors in same enclosure.

Outer Covering

Material surrounding conductor for identification purposes.

Circuits Less Than 50 Volts

Specific grounding requirements for low voltage circuits.

Circuits 50 Volts or More

Identification rules for higher voltage grounded conductors.

Reidentified Conductor

Conductor marked to indicate ungrounded usage.

Marking Tape

Tape used for conductor identification and marking.

Painting

Method to mark conductors for identification.

Termination Marking

Marking at conductor ends for identification.

Ungrounded Conductor

Conductor not intentionally connected to ground.

Insulation Color

Color coding for conductor identification.

Effective Means

Methods ensuring clear identification of conductors.

Documentation of Identification

Records of identification methods for conductors.

Permanent Posting

Visible display of identification information.

Switch Loops

Wiring configurations for controlling lights from switches.

Auxiliary Gutter

Enclosure for electrical conductors and connections.

Insulated Grounded Conductors

Conductors identified by white or gray finish.

Multiconductor Cable

Cable with multiple conductors for electrical connections.

External Ridge

Feature on grounded conductor for cables 22 mm2 or larger.

Flexible Cord

Cord with one conductor for appliance connection.

Screw Shell Devices

Devices with leads connected to screw shell terminals.

Grounded Conductor

Conductor connected to ground for safety.

Terminal Identification

Marking terminals for grounded conductor connections.

Single-Pole Switch

Switch controlling one circuit or device.

Overcurrent Device

Device protecting against excessive current flow.

Appliance Connection

Wiring method for connecting electrical appliances.

Permanent Wiring Method

Fixed installation for electrical connections.

Field-Installed Attachment Plugs

Plugs installed in the field for connections.

Grounded Circuit Conductor

Conductor designated for grounding in circuits.

Distinctive White Marking

Identification method for grounded conductors.

Polarity of Connections

Correct orientation of grounded conductor connections.

Device Terminals

Connection points for electrical devices.

Normal Current Rating

Standard current capacity for electrical devices.

Specific-Purpose Branch Circuits

Circuits for specialized equipment applications.

Air-conditioning Equipment

Devices for cooling and refrigerating applications.

Table 2.10.1.3

Reference table for specific-purpose branch circuits.

Qualified Persons

Individuals trained to handle electrical installations.

Solid Color Insulation

Non-white or gray insulation for other conductors.

Receptacles

Devices for connecting electrical equipment to power.

Polarized attachment plugs

Plugs designed to prevent incorrect connections.

Grounded conductor

Conductor connected to the earth for safety.

Identification methods

Techniques for marking electrical components clearly.

Busways

Metal conduits for electrical distribution.

Central heating equipment

Systems for heating spaces using electricity.

Fixed electric heating equipment

Permanent installations for electric heating purposes.

Infrared lamp industrial heating equipment

Devices using infrared radiation for industrial heating.

Screw shells

Devices with screw terminals for electrical connections.

Multiwire branch circuits

Circuits with multiple conductors from one source.

Color coding

Using colors to identify electrical conductors.

Tagging

Labeling components for identification purposes.

Disconnecting means

Devices to simultaneously cut power to circuits.

Line-to-neutral loads

Electrical loads connected between line and neutral.

Ungrounded conductors

Conductors not connected to the ground.

Equipment grounding conductor

Conductor for grounding electrical equipment.

Branch-circuit panelboard

Distribution board for branch circuits.

Voltage system labeling

Marking systems to identify voltage levels.

Durability of labels

Labels must withstand environmental conditions.

Exception No. 1

Conditions for marking new voltage systems only.

Exception No. 2

Conditions for simultaneous opening of conductors.

Grouping of conductors

Arranging conductors according to specific guidelines.

Identification of wiring device terminals

Marking terminals for safe electrical connections.

Ungrounded Conductors

Conductors not connected to ground for safety.

Branch Circuits

Electrical circuits supplying power to outlets or devices.

Polarity Identification

Marking conductors to indicate positive or negative.

22 mm2 Conductor

Minimum size for identification by polarity.

14 mm2 Conductor

Smaller size requiring specific identification methods.

Marking Tape

Tape used to identify conductor polarity.

Tagging

Labels used for identifying electrical conductors.

Termination Points

Locations where conductors connect to devices.

Connection Points

Junctions where conductors join other conductors.

Splice Points

Intersections where conductors are joined together.