How do you determine conductor size for a single motor?
What will be an ideal response?
NEC Section 430.6(A)(1) states that the conductor for a motor connection shall be based on the values from Tables 430.247, 430.248, 430.249, and 430.250 instead of the motor nameplate current. Section 430.22(A) states that conductors supplying a single motor shall have an ampacity of not less than 125 percent of the motor full load current. NEC Section 310 is used to select the conductor size after the ampacity has been determined. The exact table employed will be determined by the wiring conditions. Probably the most frequently used table is 310.16.
You might also like to view...
What cable is preferred when wiring a security system?
A. Copper clad aluminum B. 18-22 AWG, twisted 2-wire, stranded C. Not smaller than 14 AWG copper D. Any CAT 5 cable
Concavity of the root surface is detected by ____.
A. x-ray testing B. visual inspection C. destructive testing D. cutting a cross-section of the weld
Technician A says that a MacPherson strut typically does not include the spring as part of the strut assembly. Technician B says that a modified strut typically does not include the spring as part of the strut assembly. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
A motor uses 5,595 watts. Find the horsepower load of the motor. Carry the answer to one decimal place.
Fill in the blank(s) with the appropriate word(s).