Question

Determine the minimum number of 120-volt, 20-ampere circuit breakers for a continuous load consisting of 63 feet of track lighting to be installed in a dress shop. Calculate the number of circuits to the larger whole number.

Answer 1

If  we have 20-ampere circuit breakers. The  number of circuits to the larger whole number is: 13.

Number of circuits

Receptacles on a single strap= 180 VA each.

Hence,

VA of the circuit=(Volts x Amperes)/One receptacle

Let plug in the formula

VA of the circuit=(120 volts x 20 amperes)/180 VA

VA of the circuit= 2,400 VA (circuit)/180 VA

VA of the circuit = 13 circuits

Therefore the  number of circuits to the larger whole number is: 13.

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