Vocabulary Week 2

Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it and of preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within, and that operates at such an external temperature that a surrounding flammable atmosphere will not be ignited therebyANSI/ UL 1203-2009, Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations

Operation at a substantially constant load for an indefinitely long time

On or attached to the surface or behind panels designed to allow access

The underground conductors between the service point and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure, inside or outside the building wall

An unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non–current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth

Electrical equipment immersed in a protective liquid in such a way that an explosive atmosphere that may be above the liquid or outside the enclosure cannot be ignited

The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating

A device that, by insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle

A building that contains three or more dwelling units

A nonmetallic raceway placed within a larger raceway

Under arcing conditions, the gasses produced, while consisting predominantly of noncombustible hydrogen chloride, can include varying amounts of combustible gasses, depending on the askarel type

Electrically connected to, or is, a source of voltage

Constructed so that moisture will not enter the enclosure under specified test conditions

Utilization equipment, generally other than indus trial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air-conditioning, food mixing, deep frying, and so forth

The overhead conductors between the utility electric supply system and the service point

An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perform a mechanical rather than an electrical function

A conductor having no covering or electrical insulation whatsoever

A flammable liquid having a flash point below 38°C (100°F), or a flammable liquid whose temperature is above its flash point, or a Class II combustible liquid that has a vapor pressure not exceeding 276 kPa (40 psia) at 38°C (100°F) and whose temperature is above its flash point

1: It is recognized that the equipment grounding conductor also performs bonding

Equipment with electrical components suitable to be moved only with mechanical aids or is provided with wheels for movement by person(s) or powered devices

Rendered inaccessible by the structure or finish of the building

An organization, office, or individual responsible for enforcing the requirements of a

The service conductors between the terminals of the service equipment and the point of connection to the service lateral or underground service conductors