Raceway, Box, and conductors
What is the cross-sectional area in square inches for 4/0 AWG aluminum?
0.219 sq in.
If an exit enclosure (stair tower) is required to be separated from the building, only electrical wiring methods serving equipment, permitted by the____ is permitted within the exit enclosure.
AHJ
300.35
What size SE cable is required to supply a 9 kW electric furnace with a fan motor rated 1 kVA, each rated 240V with 75°C terminals.
What size SE cable is required to supply a 9 kW electric furnace with a fan motor rated 1 kVA, each rated 240V with 75°C terminals.
For large-scale PV installations (5,000 kW or more), buildings whose sole purpose is to house supply station equipment shall_____ comply with 690.12 for rapid shutdown systems.
not be required to
691.9
What size THW feeder is required to supply a 150A continuous load?
3/0 AWG
The emergency shutoff device for a fuel dispenser must simultaneously disconnect all conductors of the circuit(s), including the____ conductor if any.
grounded
514.11(A)
What is the ampacity of fifteen 350 kcmil THWN aluminum conductors in a raceway at an ambient temperature 125°F?
84A
Unless otherwise permitted, wiring for ____ loads shall be kept independent from all other wiring and equipment.
emergency
514.11(A)
How many #10 TW conductors are permitted in a 4 in. × 1½ in. square deep box?
8 conductors
A building may have more that one service if the capacity requirement exceeds______ amps at the 1,000 volts or less.
2,000
514.11(A)
ob#1 1-5