Pre employment calc ?

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Chad304

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Wv
Recently took a pre employment test. Had a question on one of the calculations. Question asked find branch circuit load for 1 counter mounted 6kw range and 2 wall mount ovens at 4 kw a piece. As per note 4 on 220.55 you can count them as one which is 14kw. Then in note 1 you increase column c 5 % for each kW over 12. So I added 10% to the 8 and multiplied 18% x the 14kw and came up with 2.52 then subtracted that factor from the 14kw and put 11.48kw as the branch circuit load. Am I right with this answer? Any help would be appreciated.
 

david luchini

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Connecticut
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Recently took a pre employment test. Had a question on one of the calculations. Question asked find branch circuit load for 1 counter mounted 6kw range and 2 wall mount ovens at 4 kw a piece. As per note 4 on 220.55 you can count them as one which is 14kw. Then in note 1 you increase column c 5 % for each kW over 12. So I added 10% to the 8 and multiplied 18% x the 14kw and came up with 2.52 then subtracted that factor from the 14kw and put 11.48kw as the branch circuit load. Am I right with this answer? Any help would be appreciated.

10% of 8kW is 0.8kW. 8kW+0.8kW=8.8kW. The demand load would be 8.8kW.
 

GoldDigger

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Retired PV System Designer
To rephrase that for the OP, the value in column C is not a percentage, so you cannot take it as 8 percent and add ten percent to get 18%.
Instead you add ten percent of the value to the value, which is the same as multiplying by 1.10.
 
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