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EVITP: Load calculation Feeders and services Level 4 Module 1
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EVITP: Load calculation Feeders and services Level 4 Module 1
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EVITP: Load calculation Feeders andservices Level 4 Module 1
What is the demand factor allowed by the NEC® for calculating the neutral conductor size for electric range load? - Answer>> 70%
Using the VA/linear foot method, the total VA that must be used in
a service calculation for a 50' show window is - Answer>> 12,500VA
Before it is considered a continuous load, a load must operate for at least how many hours without interruption? - Answer>> 3
Which of the following factors does not affect conductor ampacity adjustments? - Answer>> Number of phase
If a continuous connected load totals 120A, what is the minimum current-carrying capacity required for the feeder? - Answer>> 150A
What is the load center length for a tapped feeder with loads of 120A at 50', 110A at 60', 75A at 90', and 70A at 150'? - Answer>> 79.60
Which of the following lighting loads would be used in a residence
that is 1,650 sq ft? - Answer>> 4,950VA
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not continuous.) - Answer>> 7,200VA
The minimum service rating for a residential service is - Answer>> 100A Residential small appliance circuit must be rated at - Answer>> 1,500VA
Use of the 100' tap rule is limited to installation in high-bay manufacturing buildings with wall heignt over - Answer>> 35 feet
Which part of a residential lighting and small appliance load must be rated at 35% for service calculations? - Answer>> The next 177,000VA
If a store lighting load is 14,000VA (continuous), which of the following must be used for the circuit calculation? - Answer>> 17,500VA
In most cases, feeder conductor size is adjusted when - Answer>> there are more than three current-carrying conductors in the raceway
When calculating the service requirement for a particular building,
the step is to - Answer>> determine the floor area of the building
What is the feeder ampacity for a three-phase, 120/208V subpanel with a connected load of 84,563VA? - Answer>> 235A
Which part of a residential lighting and small appliance load must be rated at 35% for servives - Answer>> An optional method for determining feeder to schools is covered in - Answer>> NEC® Section 220.86
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