ELECTRICAL LEVEL 3 MODULE 1 LOAD CALCULATIONS AND BRANCH FEEDER CIRCUITS 2026 Update

ELECTRICAL LEVEL 3 MODULE 1 LOAD
CALCULATIONS AND BRANCH FEEDER
CIRCUITS 2026 Update
• What is the lighting load on a 120V circuit for six 100W incandescent
lights and four fluorescent fixtures with a ballast rating of 1.5A, all
operating continuously for 8 hours per day? 13.75A -✓✓13.75A

• What is the load center distance for a 208V, four-wire, three-phase
branch circuit with fixed noncontinuous loads from the source of 60A at
45', 40A at 60', 30A at 75', and 25A at 100' -✓✓63.55'

• What is the load center length for a branch circuit consisting of
noncontinuous loads of 125A at 80', 75A at 110', and 50A at 100'? -
✓✓93'

• What is the load center length for a branch circuit with noncontinuous
loads of 20A at 60' and 50A at 125'? -✓✓106.43'

• What is the load for 55' of show window using the linear foot method?
-✓✓13,750VA

• What is the motor full-load current for a motor with a nameplate rating
of 50hp, 460V, 3Ø? -✓✓65A

• What is the required circuit ampacity for a noncontinuous, three-phase
load of 6kW at 208V? -✓✓16.65A

• What is the total ampacity for a 120V branch circuit consisting of four
duplex receptacles rated noncontinuous duty and six duplex receptacles
rated continuous duty? -✓✓17.25A