NCCR 26109-23 Flashcards
What is ampacity?
The maximum current in amperes a conductor can carry continuously under the conditions of use without exceeding its temperature rating
Which section of the NEC describes information on wire sizes?
NEC Chapter 9, Table 8
What is a mil?
.001”
What is a circular mil?
a circle with a diameter of 1 mil
In insulation coding, what does N stand for?
Nylon
In insulation coding, what does U stand for?
Underground
In insulation coding, what does H stand for?
heat-rated or flame-retardant
In a two conductor cable, what are the typical colors?
Black, white or gray, and grounding
In a three conductor cable, what are the typical colors?
Red, black, white or gray, and grounding
What does NMC stand for?
Nonmetallic-sheathed cable
What does type MC cable stand for?
Metal-clad cable
What table lists conductor ampacity?
Table 310.16
What is the most common type of jacket on conductors?
PE (polyethylene)
What is the maximum size wire that should be terminated in pull boxes and disconnect?
No. 8
In Insulation coding, what does W stand for?
Weather rated
How is the grounding conductor usually marked?
bare wire, green, or green with a yellow stripe
What does AC cable stand for?
armor-clad
What does USE cable stand for?
Underground Service Entrance
What article deals with service entrance cable?
NEC 230
