Electrical Level 3 Module 1 Load Calculations and Branch Feeder Circuits | Questions with 100% Correct Answers | Verified | Latest Update 2024

According to the NEC®, the ampacity of branch circuit conductors must be derated when there are more than how many current-carrying conductors in a raceway? - 3 Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)? - 225% Conductors must be derated when installed in conduit - on or above rooftops Continuous loads are calculated at what percentage of the maximum current rating of the overcurrent device? - 80% For a given load and length, the branch circuit voltage drop should not exceed - 3% For resistance welders, the rating for the overcurrent protection device should not exceed what percentage of the primary current rating of the welder? - 300% Show window lighting is calculated at 200VA per linear foot plus - 125%