LOAD CALCULATION FEEDERS AND SERVICES CERTIFICATION ASSESSMENT 2026 VERIFIED ANSWERS GRADED A+

LOAD CALCULATION FEEDERS AND SERVICES
CERTIFICATION ASSESSMENT 2026 VERIFIED
ANSWERS GRADED A+

◉ Feeder-Circuit Conductor Size.
Answer: The minimum ________________ shall have an allowable
ampacity of not less than 100% of the non-continuous load plus
125% of the continuous load.


◉ 125% or a multiplier of 1.25.
Answer: The factor for a CONTINUOUS load.


◉ 100% or a multiplier of 1.
Answer: The factor for a NON-CONTINUOUS load.


◉ Branch Circuits, Feeders, and Services.
Answer: What are the three electrical calculation sections? (Not of
the NEC)


◉ Sequence of Calculating Loads.
Answer: 1.) Determine the load on branch circuits. 2.) Calculate the
feeder load. 3.) Determine the service load.

, ◉ Increased in Size (NEC SECTION 110.14c).
Answer: After complying with the NEC, the conductors may have to
be __________ to accomodate the altered alloawable ampacity for that
conductor.


◉ 3 Hours or More.
Answer: A continuous duty load is a load that operates without ANY
interruption.


◉ Reciprocals (multiplicative inverses).
Answer: When derating, these can be used to quickly find a
conductor to serve a load. Typically shown on a calculator as 1/x.
[Ex. 3 (1/x) = 1/3]


◉ Voltage Drop for Feeders.
Answer: The NEC recommends that "this" shouuld not exceed 3% to
the farthest outlet, and 5% for the combination of feeders and
branch circuits to the farthest outlet.


◉ Formula for Voltage Drop.
Answer: VD= 2xLxIxR / 1000


◉ CM.