You’ll need to know how to answer general lighting load calculation exam questions to get a passing score on your electrical exam. Understanding how to answer dwelling service calculation questions like the one below can help you get a passing score.
What is the general lighting demand load for a 5000 square foot single family dwelling?
5000 sq.ft. x 3.5 va/sq.ft. = 17,500 va
2 small appliance branch circuits @ 1500 va/circuit = 3,000 va
1 laundry circuit @ 1500 va = 1,500 va = 22,000 va connected load
1st 3000 va @ 100 % = 3,000 va
Next 19,000 va @ 35% = 6,650 va = 9,650 va demand load
Now that you know how the math works, do you know where the code articles are that support the math? We can help! We’ll show you how to find and apply the code references that will allow you to answer any calculation based question on your exam.
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