Question 1096 of 731 · Texas Journeyman Electrician Exam
A building-supplied transformer whose secondary has no direct electrical connection to the supply conductors, except through grounding and bonding connections, creates:
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 1096
- B: A separately derived system
Explanation
Article 100 defines a separately derived system as an electrical source other than a service that has no direct connection to circuit conductors of any other system, other than those established by grounding and bonding connections. A typical dry-type transformer is the common example.
More questions: Definitions, Theory and Plans
- 1097The point of connection between the facilities of the serving utility and the premises wiring is called the:
- 1098A partially protected location under a canopy or a roofed open porch is classified in the NEC as a:
- 1103NEC 110.3(B) requires that listed or labeled equipment be installed and used:
- 1104Unless the equipment is listed and marked otherwise, terminations for circuits rated 100 amperes or less (or 14 AWG through 1 AWG conductors) are based on which conductor temperature rating?
- 1105For circuits rated over 100 amperes, or conductors larger than 1 AWG, terminations are generally based on which conductor temperature column?
- 1106Copper and aluminum conductors may be joined in the same terminal or splicing connector only when: