Appendix F Flashcards by Luke Zamoras | Brainscape

Q

What does Ib stand for

A

design current

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Q

What does In mean

A

overcurrent device rating

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Q

What does It mean

A

Tabulated current-carrying capacity

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Q

How do you calculate It

A

It = In / Ca x Cg x Ci x Cf

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Q

What does Ca mean

A

Ambient temperature

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Q

What does Cg mean

A

grouping

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Q

What does Ci mean

A

thermal instillation

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Q

What does Cf mean

A

type of protective device

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Q

How to calculate volt drop

A

multiply the tabulated value of volt drop
multiply the design current
multiply the length
devide by 1000 to get voltage

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