Grounded Conductors and Branch Circuits Overview

Grounded Conductor

Conductor intentionally connected to ground for safety.

Neutral Conductor

Carries current back to the source in circuits.

Identification of Terminals

Labeling terminals for circuit identification purposes.

Multiple Circuits

More than one circuit sharing a common enclosure.

Wire Markers

Labels used to identify conductors in enclosures.

Cable Ties

Fasteners used to group wires together.

Ungrounded Circuit Conductor

Conductor not connected to ground.

Insulated Grounded Conductor

Grounded conductor with insulation for safety.

Continuous White Finish

Outer finish indicating a grounded conductor.

Continuous Gray Finish

Alternative outer finish for grounded conductors.

Three Continuous Stripes

Marking method for identifying grounded conductors.

Colored Tracer Threads

Threads indicating manufacturer on insulated wires.

Mineral-Insulated Cable

Cable type requiring distinctive marking at installation.

Sunlight-Resistant Cable

Cable designed for outdoor use in photovoltaic systems.

Distinctive Marking

Unique identification for specific conductor types.

Electrical Connection

Connection capable of carrying current between systems.

Grounding Electrode Conductor

Conductor connecting grounding system to ground.

Equipment Grounding Conductor

Conductor ensuring safety by grounding equipment.

Photovoltaic Power Systems

Systems generating electricity from solar energy.

Fixture Wire

Wire used for connecting fixtures in circuits.

Aerial Cable Identification

Identification requirements for aerial cable installations.

Exception for Grouping

Conditions under which grouping rules do not apply.

Continuity Requirement

Grounded conductor's continuity must not rely on enclosures.

Grounded Conductor

A conductor intentionally connected to ground.

22 mm² Size

Minimum size for insulated grounded conductors.

Continuous White Finish

Identification method for grounded conductors.

Continuous Gray Finish

Alternative identification for grounded conductors.

Three White Stripes

Marking method for grounded conductors on insulation.

Distinctive Marking

White or gray marking at conductor terminations.

Flexible Cord Identification

Grounded conductor in flexible cord marked white/gray.

Grounded Circuit Conductor

Conductor used exclusively for grounding purposes.

Outer Covering

Insulation layer identifying grounded conductors.

Different Systems Identification

Distinguishing grounded conductors from various systems.

Circuits Less Than 50 Volts

Grounding requirements for low-voltage circuits.

Circuits 50 Volts or More

Identification rules for higher voltage grounded conductors.

Marking Tape

Used for reidentifying conductors as ungrounded.

Painting

Method for marking conductors' identification.

Termination Marking

Marking at the end of a conductor.

Ungrounded Conductor

Conductor not intentionally connected to ground.

Reidentified Conductor

Conductor marked to indicate its new function.

Color Coding

Using colors for conductor identification.

Insulation Stripes

Visual markers for identifying conductor type.

Grounded Conductor Requirements

Standards for grounding conductors in installations.

Conductors Visibility

Requirement for accessible identification of conductors.

Documentation of Identification

Record-keeping for conductor identification methods.

Insulated Grounded Conductors

Conductors identified by white or gray finish.

Multiconductor Cable

Cable with multiple conductors, minimum 22 mm².

External Ridge

Feature on grounded conductor for identification.

Flexible Cord

Cord with one conductor for appliance connection.

Screw Shell Devices

Devices with leads, grounded conductor marked white/gray.

Grounded Conductor

Conductor connected to ground for safety.

Terminal Identification

Terminals for grounded conductors marked white.

Single-Pole Switch

Switch controlling one circuit path.

Overcurrent Device

Device protecting against excessive current flow.

Appliance Connection

Method for connecting appliances to circuits.

Distinctive White Marking

Used for identifying grounded conductors.

Polarity of Connections

Grounded conductor must not reverse polarity.

Device Terminals

Terminals for connecting multiple circuit sides.

Normal Current Rating

Rated current for devices over 30 amperes.

Specific-Purpose Branch Circuits

Circuits for specific equipment applications.

Air-Conditioning Equipment

Equipment referenced for specific circuit requirements.

Three Continuous Stripes

Alternative identification for grounded conductors.

Readily Distinguishable Color

Color differing from white/gray for terminals.

Qualified Persons

Individuals trained to handle electrical installations.

Maintenance and Supervision

Conditions ensuring safe electrical system management.

Table 2.10.1.3

Lists references for specific equipment circuits.

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 means

Methods to mark or code electrical conductors.

Multiwire branch circuits

Circuits with multiple conductors from one panel.

Color coding

Using colors to identify electrical conductors.

Marking tape

Tape used for labeling electrical components.

Disconnecting means

Device to simultaneously disconnect all ungrounded conductors.

Line-to-neutral loads

Loads connected between line and neutral conductors.

Ungrounded conductors

Conductors not connected to the ground.

Screw shells

Devices with screw connections for electrical terminals.

Branch circuits

Circuits that distribute power from a panel.

Fixed electric heating equipment

Permanent installations for electric heating.

Infrared lamp industrial heating

Heating using infrared lamps in industrial settings.

Panelboards

Distribution boards for electrical circuits.

Busways

Metal conduits for distributing electrical power.

Durability of labels

Labels must withstand environmental conditions.

Voltage system identification

Marking systems to distinguish different voltage levels.

Exception for existing installations

Rules for marking new systems in old setups.

Grounded conductor identification

Marking grounded conductors for safety compliance.

Branch-circuit overcurrent device

Device protecting circuits from overloads.

FPN (Fine Print Note)

Additional notes providing clarification on regulations.

Ungrounded Conductors

Conductors not connected to ground or earth.

Identification Methods

Techniques for marking ungrounded conductors.

Branch Circuits

Electrical circuits supplying power to outlets.

Current Systems

Electrical systems providing power at specific voltages.

Polarity Identification

Marking conductors to indicate positive or negative.

22 mm2 Conductor

Conductor size requiring polarity marking for identification.

14 mm2 Conductor

Smaller conductor size with specific identification rules.

Termination Points

Locations where conductors connect to devices.

Connection Points

Junctions where conductors join other conductors.

Splice Points

Areas where conductors are joined together.

Positive Polarity

Indicates the positive side in a DC system.

Nominal Voltage System

System with standard voltage ratings for circuits.