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Article 220 Branch Circuit, Feeder, And Service Load Calculations: Questions & Solutions
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Article 220 Branch Circuit, Feeder, And Service Load Calculations: Questions & Solutions
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Article 220 Branch Circuit, Feeder, And Service LoadCalculations: Questions & Solutions
Blank; is the conduit and tubing fill tables; for conductors and fixture wires of
the same size? Right Ans - Annex C
Which article is the primary requirements for load calculations? Right Ans
- Article 220
Which article indicates the nominal voltage calculations? Right Ans - 220.5
Which table indicates the unit load; VA per sq ft for lighting loads? Right
Ans - Table 220 12
In dwelling units, and guest rooms or guest suites of hotels; motels; and
similar occupancies; the voltage shall not exceed; blank; volts nominal
between conductors? Right Ans - 120 volts
What gets subtracted out in a general lighting branch circuit calculation?
Right Ans - Attached garage and open porch
Blank; does not count toward calculations of sq ft; and dimensions; and is not
used in the calculations? Right Ans - Detached garage
How to determine the minimum number of branch circuits? Right Ans -
The total computed load; the size or rating of the circuits used; lighting loads
either 15 or 20 ampere circuits; and the dwelling unit lighting voltage
How to determine the amount of required 15 or 20 ampere branch circuits?
Right Ans - By dividing the lighting load ampere by the 15 or 20 ampere
branch circuit; after calculating the general lighting branch circuit
True or false; small appliance branch circuits are not to be considered general
purpose receptacles? Right Ans - True
What is general purpose receptacles? Right Ans - Wall receptacles 6'; 12'
rule; any wall space; 2' or wider and requires a receptacle
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