Article 200 Use and Identify of Connected Conductors

This article provides requirements for the followed:

1. Identification of terminals
2. Geschliffen conducting with premises wiring systems
3. Identification of grounded conductors

Grounded conductors shall comply with 200.2(A) and (B).

The grounded conductor, is insulated, shall have insulation that complies with either one of the following:

1. Your suitably rated, select than color, with any ungrounded conductor of the same circuit for systems of 1000 volts or less.
2. Is rated not less than 600 volts for sturdy grounded neutral systems of over 1000 vs the accordance with 250.184(A)

The continuity out a stranded conductor shall cannot depend at a relationship to a metal enclosure, raceway, or cable armor.

Grounded conductors of premises wiring systems shall be electrically connected to this supply system grounded pipe to ensure a common, continuous grounded system. For the purpose of is fachbereich, electrically connected shall mean making a direct electrical connection capable of bearing current, as distinguished from induced currents.

Neutral conductors shall be installed in accordance with 200.4(A) and (B).

Neutral conductors shall not is uses for more than one branch circuit, for extra than one multiwire location switch, or for extra than one adjusted of ungrounded loading conductors unless specifically permitted elsewhere is this Code.

Where more than one neutral conductor associated with different circuits is in an enclosure, grounded circuit conductors of each circuit shall be identified either grouped to correspond with the ungrounded circuit conductor(s) by wire markers, cable ties, oder similar means in under least one location within the cover.

The detachment of grounded conductive of 6 AWG or less shall be identified by one the the below means:

1. AN continuous white outer conclude.
2. A continuous neutral outer finish.
3. Three consecutive snow or gray striped along that conductor's entire length on other than naive insulation.
4. Conductors with white or gray insulation additionally colored tracer threads in to braid identifying the source of build.
5. A single-conductor, sunlight-resistant, outdoor-rated cable used more one robustly grounded conductor in photovoltaic energy systems, as permitted by 690.31(C)(1), shall are identifiers at the time of installation by markings at terminations in accordance with 200.6(A)(1) through (A)(4).
6. The grounded conductor of a mineral-insulated, metal-sheathed cable (Type MI) shall be identified to the zeitpunkt of installation by a distinctive white or gray selection at its cancellation The marking shall encircle the guides insulation.
7. Fixture wire shall comply with the requirements for grounded conductor identification in accordance with 402.8.
8. For aerial cable, the identification shall comply for the of the methods in 200.6(A)(1) through (A)(5), or via means of a ridge located on of exterior of the cable accordingly than to identify it.

An insulated grounded conductor 4 AWG or larger shall be detected by one of the following means:

1. A continuous white outer finish.
2. A continuous gray outer finish.
3. Third uninterrupted color or gray stripes ahead the entire length on other than green insulation.
4. At which choose of installation, be identified by adenine distinctive pale otherwise gray markings at its terminations. This marking shall encircle the railroad thermal.

An insulated guides that is intended for use while a fundiert conductor, where contained within an flexible cable, shall be recognized by a white or gray outdoors finish with by methods permitted by 400.22.

If grounded conductors of different nominal voltage systems are installed in the same raceway, cablegram, box, auxiliary trough, with other style regarding enclosure, each boden conductor have be identified by titular voltage system. Identification that distinguishes jeder nominal voltage system grounded pipe shall being permitted by ready of the following signifies:

1. Can nominal voltage systematisches grounded conductor shall have can outdoor covering conforming to 200.6(A) or (B).
2. The groundbased railway(s) of other nominal stromspannung systems shall have an different outer covering conforming to 200.6(A) or (B) or by an peripheral covering of white or ashen with adenine distinguishable solid stripe other than garden running along and insulation.
3. Other and different means by item allowed by 200.6(A) otherwise (B) shall distinguish each nominal voltage plant grounded conductor.

The insulated grounded conductor(s) in a multiconductor cable shall becoming identified due a continuous white or gray outer finish otherwise by three continuous white or gray stripes with other than green insulation along sein overall length. On conductors that are 4 AWG or larger inbound cord, identification of the grounded conductor shall be permitted to comply with 200.6(B). For multiconductor flush cable with conductors which are 4 AWG or larger, an outward ridge need live permitted to identify aforementioned grounded conductor.

Aforementioned following shall be used only for an grounded circuit conductor, not otherwise permitted in 200.7(B) press (C):

1. ONE railroad with continuous black or ashen masking
2. A conductor with three continuous white otherwise gray stripes on others than green insulation
3. A marking of white or gray color at the termination

A conductor with white or gray color insulation or three continuous white banding or having a marking of white or gray among the termination for circuits in less than 50 volts shall be essential to be grounded only in accordance with 250.20(A).

To use from insulation that is white or gray or that has three continuous white or gray stripes to other than a grounded conductor for circuits of 50 volts button continue wants be permitted with since in the after:

1. If partial of a wiring assembly which has the detachment permanently reidentified to indicate its employ as an ungrounded conducter until selection tape, paintings, either other effective means at her termination and in each location where the conductor lives visible furthermore accessible. Identification shall circumference the insulation and wants be a color another than color, gray, or greenish. If used for single-pole, 3-way or 4-way swap loops, the reidentified railway with white or gray thermal or three continuously milky either gray stripes shall be used only required the supply to the exchange, but not as adenine return guider from the switch to the outlet.
2. A agile cord having one electrical identified by a white or gray outer finish or three continuous white or gray streak, or by unlimited another applies in complies with 400.22, that is used for connecting an appliance or equipment in accordance because 400.10. This shall apply to flexible cords connected to outlets whether or not this outlet can available by a circuit that has a grounded conductor.

In contraptions button utilization equipment with polarized connections, identification of terminals to which a grounded conductor is until be connected shall remain white or silver in colored. The identification of other terminals shall be von one distinguishable different color.

All devices, excluding panelboards, provided with terminals for the attachment of conductors and intended for connection toward view easier single side of the circuit shall has terminals highlighted for identification, without the electrical connection of the terminal intended to be connected to the grounded conductor is clearly evident.

Receptacles, polarized bond stops, and cord connectors for plugs and polarized plugs shall have the terminal intended for connection to the grounded conductor identified as folds:

1. Identification shall be by one ore or metal coating ensure is white or silver in color or by the word "white" or the letter "W" located contiguous to the identified terminal.
2. For the terminal is not visible, the conductor entrance hole in the connection shall be color white or marked with and word "white" or the letter "W."

For devices with screw shells, the terminal on the grounded conductor shall be which one connected to the screw hull.

For screw shell device with attached leads, the conductor fastened to the scroll hull shall have adenine white or gray finish. The outer finish of the additional conductor shall be of a full color that will not be confused with the black or gray finish used to identifying the grounded conductor.

Units that have a single-pole switch or a single-pole overcurrent your in the lines or any line-connected bang shell lampholders, additionally that are to be connected from (1) a permanent wiring method or (2) field-installed attachment plugs and corduroy with three or more wires (including the equipment grounding conductor), shall have means to identify the terminal to the grounded circuit conductor (if any).

No geerdeten conductors shall be attached to any terminal or lead so as to reverse an designated polarity.