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Electrical Theory
Residential Wiring
Circuit Analysis
Service Calculations
Code
100
This is the outermost orbital shell of an atom.
What is the Valence Shell?
100
This is the minimum amount of exposed wire in a box.
What is 6"?
100
If a circuit is on for 3 seconds, and has a current of 10 amps, this is the charge in Coulombs.
What is 30 coulombs?
100
This is the code article for sizing ranges in a dwelling.
What is Article 220.55?
100
This is the distance between supports on a Cablebus System.
What is 12', NEC 370.30(A)
200
This has 5-8 electrons in the valence shell.
What is an insulator?
200
This is a room where lighting outlets are required in a dwelling.
What is a habitable room?
200
This is the voltage drop of a circuit with the following: 83A 217 feet Cu Conductors Single Phase #3 THHN
What is 8.22V?
200
This is 5000W or the nameplate, whichever is greater.
What is the allowance for a Dryer?
200
This is the maximum number of main Service Disconnects permitted by code without exception.
What is 6? NEC: 230.71(A)
300
575V is the RMS voltage of this peak voltage.
What is 814V?
300
This is the permitted set-back for a box in a combustible wall.
What is flush mounted?
300
This is the resistance of the following circuit: 2300W 240V
What is 25.04 ohms?
300
This is the code article for non-coincident loads.
What is 220.60?
300
This is hazardous location class is used for combustible dusts.
What is Class II. NEC: 502
400
This is energy per charge unit quantity.
What is the definition of electro-motive force (EMF)
400
This is the minimum number of 15A circuit breakers required for 120V lighting in 3,100 square foot dwelling unit.
What is 6 circuit breakers?
400
This is the Impedance of the following circuit: 12 ohms Resistance 16 ohms Reactance
What is 20 ohms?
400
This is the demand of a 8kW range in a dwelling.
What is 6400W?
400
This is the maximum height a OCPD can be mounted from the floor. (When equipment is serviced from the floor)
What is 6'-7" to the center of the handle in it's highest position. NEC: 240.24(A)
500
This is the property of a circuit that permits it to store an electrical charge.
What is Capacitance?
500
This is the largest dwelling unit service size that is subject to conductor demand.
What is 400A?
500
This is the angle of lead/lag of the following circuit: 6 ohms Resistance 8 ohms Reactance
What is 53.13 degrees?
500
This is the Range demand for: 9kW Oven 14kW Cooktop 11kW Stove
What is 14,700w or 14.7kW
500
This is the ampacity of Type SO (SOOW) 2-conductor flexible cable sized #14awg.
What is 18A. NEC: Table 400.5(A)(1)