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Available Fault Current – 110.24 Quiz

Available Fault Current – 110.24 Quiz

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Question 1 of 4

1. Question

What is the primary purpose of marking available fault current in commercial services?

To show the amount of fault current that can occur at a service.
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To identify the location of the main disconnect.
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To indicate the length of service conductors.
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To display the size of the conductors used
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Question 2 of 4

2. Question

What factor affects the available fault current calculation?

The length of the conductors.
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The color of the conductors.
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The number of service entrances.
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The brand of the transformer.
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Question 3 of 4

3. Question

What is required to be included in the field markings according to NEC 110.24 A?

The date of the fault current calculations.
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The warranty period of the equipment.
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The manufacturer's name of the service equipment.
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The installation date of the service equipment.
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Question 4 of 4

4. Question

What action should be taken when modifications to an electrical installation affect the available fault current at the service?

The AFC should be recalculated or verified.
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A new service meter should be installed.
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All conductors should be replaced.
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The transformer should be upgraded.
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