Question 8071 of 931 · Texas Journeyman Electrician Exam
A transformer is located out of sight of its supply disconnect. What does 450.14 require?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 8071
- D: The disconnect must be lockable open, and its location must be marked on the transformer
Explanation
Section 450.14 requires a disconnecting means for transformers other than Class 2 and Class 3 types, located in sight of the transformer or at a remote location. A remote disconnect must be lockable in the open position (110.25) and its location must be field marked on the transformer.
More questions: Motors, HVAC, Generators and Transformers
- 8072Oil-insulated transformers installed indoors are generally required to be installed in what?
- 8073What is the general fire resistance rating required for transformer vault walls and roofs?
- 8074Secondary conductors leave a transformer and do not exceed 10 ft in length. What may they terminate in without protection at the secondary terminals?
- 8075Capacitors rated 1000 volts or less must discharge their residual voltage to what level within what time after disconnection?
- 8076What is the minimum ampacity of conductors supplying a capacitor?
- 8077A power factor correction capacitor is connected on the load side of a motor overload device. How is the overload selected?