Week 5 Definitions

Question 1

Concealed

Answer 1

Rendered inaccessible by the structure or finish of the building

Question 2

Continuous duty

Answer 2

Operation at a substantially constant load for an indefinitely long time

Question 3

Continuous load

Answer 3

A load where the maximum current is expected to continue for 3 hours or more

Question 4

Demand factor

Answer 4

The ratio of the maximum demand of a system, or part of a system, to the total connected load of a system or the part of the system under consideration

Question 5

Dry location

Answer 5

A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction

Question 6

Dusttight

Answer 6

Enclosures constructed so that dust will not enter under specified test conditions

Question 7

Enclosed

Answer 7

Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts

Question 8

Guarded

Answer 8

Covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers, casings, barriers, rails, screens, mats, or platforms to remove the likelihood of approach or contact by persons or objects to a point of danger

Question 9

Enclosure

Answer 9

The case or housing of apparatus, or the fence of walls surrounding an installation to prevent personnel from accidentally contacting energized parts or to protect the equipment from physical damage

Question 10

Energized

Answer 10

Electrically connected to, or is, a source of voltage

Question 11

Explosion proof equipment

Answer 11

Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that might occur within it, that is capable 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

Question 12

Exposed (as applied to wiring methods)

Answer 12

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

Question 13

In sight from (within sight from)

Answer 13

Equipment that is visible and not more than 15 m (50 ft) distant from other equipment is in sight from that other equipment

Question 14

Isolated (as applied to location)

Answer 14

Not readily accessible to persons unless special means for access are used

Question 15

Lighting outlet

Answer 15

An outlet intended for the direct connection of a lampholder or luminaire.

Question 16

Live parts

Answer 16

Energized conductive components

Question 17

Luminaire

Answer 17

A complete lighting unit consisting of a light source such as a lamp or lamps, together with the parts designed to position the light source and connect it to the power supply. It may also include parts to protect the light source or the ballast or to distribute the light. A lampholder itself is not a ________.

Question 18

Multi-outlet assembly

Answer 18

A surface, flush, or freestanding assemblage with a raceway and fittings or other enclosure provided with one or more receptacles, for the purpose of supplying power to utilization equipment

Question 19

Rainproof

Answer 19

Constructed, protected or treated so as to prevent rain from interfering with the successful operation of the apparatus under specified test conditions.

Question 20

Raintight

Answer 20

Constructed or protected so that exposure to a beating rain will not result in the entrance of water under specified test conditions

Question 21

Readily accessible

Answer 21

Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to take actions such as to use tools (other than keys), to climb over or under, to remove obstacles, or to resort to portable ladders, and so forth