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Dwelling Service Calculations – Standard Method – Part 1

Dwelling Service Calculations – Standard Method – Part 1

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Question 1 of 3

1. Question

When calculating the total load for a dwelling unit, which of the following combinations should be added together before applying the demand factors specified in NEC Table 220.45?

General lighting load, small-appliance branch circuits, and laundry circuit.
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General lighting load and fixed electric space heating equipment.
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Small-appliance branch circuits and electric vehicle charging equipment.
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Laundry circuit and air-conditioning equipment.
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Question 2 of 3

2. Question

how can a 75% demand factor be applied to fixed appliances according to the standard method?

If the appliances are energy efficient
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If there are four or more appliances fixed in place
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If there is only one appliance
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If the total VA is over 10,000
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Question 3 of 3

3. Question

how is the demand load for a single dryer calculated in the standard method?

Assigning a value of 4,000 VA or whatever the nameplate rating of the dryer is – whichever is larger.
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Multiplying the dryer's VA by the number of dryers
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By applying a 75% demand factor
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Assigning a value of 5,000 VA or whatever the nameplate rating of the dryer is – whichever is larger.
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