Article 90 Introduction and Article 100 Definitions
Electrically connected to or is a source of voltage.
What is Energized, Article 100?
This article states that equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at least equal to the available fault current at the line terminals of the equipment
What is Article 110.9 Interrupting rating?
An insulated conductor that is intended for use as a grounded conductor, where contained within a flexible cord, shall be identified by a white or gray outer finish or by methods permitted by 400.22
What is Article 200.6(C) Flexible Cords?
Backfill that contains large rocks, paving materials, cinders, large or sharply angular substances, or corrosive material shall not be placed in an excavation where materials might damage raceways, cables, conductors, or other substructures or prevent adequate compaction of fill or contribute to corrosion of raceways, cables, or other substructures
What is Article 300.5(F) Backfill?
Where cords and cables are used in ambient temperatures other than 30°C (86°F), the temperature correction factors from Table 310.15(B)(1)(1) that correspond to the temperature rating of the cord or cable shall be applied to the ampacity in Table 400.5(A)(1) and Table 400.5(A)(2).
What is Article 400.5(A) Ampacity Tables?
Rules of this Code that identify actions that are specifically required or prohibited and are characterized by the use of the terms shall or shall not.
What are Mandatory Rules, Article 90.5(A)?
Unless identified for use in the operating environment, no conductors or equipment shall be in damp or wet locations, where exposed to gases, fumes, vapors, liquids, or other agents that have a deteriorating effect on the conductors or equipment; or where exposed to excessive temperatures.
What is Article 110.11 Deteriorating Agents?
No grounded conductor shall be attached to any terminal or lead so as to reverse the designated polarity.
What is Article 200.11 Polarity of Connections?
Where the installation complies with the special requirements specified in 645.4, electrical wiring in air-handling areas beneath raised floors for information technology equipment shall be permitted in accordance with 645.5(E).
What is Article 300.22(D) Information Technology Equipment?
Double-throw knife switches shall be placed so that the throw is either vertical or horizontal.
What is Article 404.6(B) Double-Throw Knife Switches?
Rules of this Code identify actions that are allowed but not required. These are normally used to describe options or alternative methods and are characterized by the use of the terms shall be permitted or shall not be required.
What are Permissive Rules, Article 90.5(B)?
According to this article, the permanent outer finish of a high-leg conductor must be orange in color.
What is Article 110.15 High-leg Marking?
For the purposes of this section, the distance from receptacles shall be measured as the shortest path the power supply cord connected to the receptacle would follow without piercing a floor, wall ceiling, or fixed barrier.
What is Article 210.8 Ground-Fault Circuit-Interrupter Protection for Personnel?
The conductor shall not be bent to a radius less than 8 times the overall diameter for nonshielded conductors.
What is Article 305.5 Conductor Bending Radius?
Except as provided in 406.4(D), receptacles installed on 15- and 20-ampere branch circuits shall be of the grounding type. Grounding-type receptacles shall be installed only on circuits of the voltage class and current for which they are rated…
What is Article 406.4(A) Grounding Type?
Power conversion equipment that adjusts the speed of an electric motor.
What is an Adjustable Speed Drive, Article 100?
Specified as within sight from or within sight of another equipment the specified equipment shall be visible and not more than 15 m, or 50 ft distant from the other
What is Article 110.29 In Sight From (Within Sight From, Within Sight)?
In no case can the load exceed the branch-circuit amp rating.
What is Article 210.23 Permissible Loads, Multiple-Outlet Branch Circuits?
In damp or wet locations, surface-type enclosures within the scope of this article shall be placed or equipped so as to prevent moisture or water from entering and accumulating within the cabinet or cutout box, and shall be mounted so there is at least 6-mm (1/4 in.) airspace between the enclosure and the wall or other supporting surface.
What is Article 312.2 Damp or Wet Locations?
A recessed luminaire that is not identified for contact with insulation shall have all recessed parts spaced not less than 13 mm (1/2 in.) from combustible materials.
What is Article 410.116 (A)(1) Non-Type IC?
Electrical device that converts single phase power to three phase electric power.
What is a phase converter, Article 100?
Manhole covers shall have an identifying mark or logo that prominently indicates their function such as electric.
What is Article 110.75(E) Marking?
SPDs and surge arresters shall not be reconditioned.
What is Article 242.2 Reconditioned Equipment?
Suitable bushings, shields, or fittings having smooth, rounded edges shall be provided where conductors or cables pass through partitions and at other locations where necessary.
What is Article 314.72(B) Passing Through Partitions?
The residual voltage of a capacitor shall be reduced to 50 volts, nominal, or less within 1 minute after the capacitor is disconnected from the source of supply.
What is Article 460.6(A) Time of Discharge?