If more then 10 conductors are in raceway then the ampacity must be adjusted to 50 % of their full current value.
As this is also depends upon the ambient temperature and the conductor type but the above one is for general
If 11 current carrying conductors are to be installed in a raceway, their ampacity must be...
WHATS THE DERATED AMPACITY OF (7)-10 AWG THHN COOPER CONDUCTORS IN A RACEWAY?
What is the table listed ampacity of a #1 AWG THW copper conductor in a raceway containing no more than three current carrying conductors, 400C, dry location?
10. What is the conductor ampacity required for a 20 KW, 240 volt central space heater? 11. What is the ampacity of three No. 4 THWN conductors installed in an ambient temperature of 30 degree Celsius? 12. What is the ampacity of three No. 3/0 conductors installed in free-air? 13. What is the ampacity of eight 4/O THHN conductors installed a raceway in an ambient temperature of 100 degreee F? 14. What is the ampacity of ten No. 6 THWN...
Ten #3 AWG copper load carrying conductors with type THHW, 75oC insulation are installed in a rigid metal conduit, RMC. What is the final loaded allowable ampacity for each conductor?
#12 THW current carrying conductors are installed in an 18" length of conduct. What is the derating factor
In an ungrounded electrical systems with conductors installed in grounded metal raceways and enclosures, what is the voltage from the current carrying conductors to the metal raceways and WHY?
In an ungrounded electrical systems with conductors installed in grounded metal raceways and enclosures, what is the voltage from the current carrying conductors to the metal raceways and WHY?
18. Current-carrying capacity is also known as A. voltage. B. power-handling rating. C. gauge. D. ampacity.
Magnetic lines of force which oppose each other can be created by: a. Parallel conductors carrying current in the same Direction O b. Conductors carrying no current OC. Parallel conductors carrying current in Opposite Direction d. Parallel conductors with high Percent Impedance
Two straight, current-carrying conductors run parallel to one another in air, separated by a distance of 1.50 cm. The force per unit length between the conductors is 4.00 × 10–4 N m–1. The first conductor carries a current of 4.50 A. Assuming the relative permeability of air is 1.00, calculate the magnitude of the current in the second conductor?