branch-circuit conductors to the farthest locations in residence may have to be oversized, compare to the over current protective device in order to compensate for ______.
a) voltage drop
b) expansion and contraction
c) frequency
d) future use

The NEC advises that the maximum voltage drop on the feeder or branch circuit shouldn't be more than 3% and that the maximum voltage drop on both the feeder and branch circuit shouldn't be more than 5%.

Branch Conductors are the Circuits that supply electricity to the Loads or Devices being powered by the Electrical Service Panel via the circuit breakers located in the Service Panel. Table 310-13 of the National Electric Code provides a list of the numerous insulation options. (2) The smallest conductor size authorized in residential wiring is 14 A WG, according to NEC 210-19(c). The smallest conductor size allowed for building wiring by the NEC is 14 AWG [310.5]. However, 12 AWG must be utilized as the smallest branch circuit wire per municipal codes and many industrial buildings.

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branch-circuit conductors to the farthest locations in residence may have to be oversized, compare to the over current protective device in order to compensate for ______. a) voltage drop b) expansion and contraction c) frequency d) future use

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branch-circuit conductors to the farthest locations in residence may have to be oversized, compare to the over current protective device in order to compensate for ______.
a) voltage drop
b) expansion and contraction
c) frequency
d) future use