Question 10057 of 925 · California General Electrician Exam
Under the 120 percent rule for a load-side PV connection at the opposite end of the busbar, a panelboard has a 200-ampere busbar and a 200-ampere main breaker. What is the largest permitted backfed PV breaker?
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 10057
- B: 40 amperes
Explanation
The sum of 125 percent of the inverter output current and the main OCPD rating may not exceed 120 percent of the busbar rating: 200 A x 1.2 = 240 A, and 240 A minus 200 A leaves 40 A for the PV breaker. Placing the PV breaker at the far end of the busbar is a condition for this method.
More questions: Special Equipment, Pools, PV and EV
- 10058A panelboard has a 225-ampere busbar and a 200-ampere main breaker. Using the 120 percent rule with the PV breaker at the opposite end, what is the largest permitted backfed PV breaker?
- 10059When the 120 percent rule is used for a load-side interconnection, where must the backfed breaker be located?
- 10061A PV interconnection made between the service meter and the service disconnecting means is what type of connection?
- 10063Article 706 applies to permanently installed energy storage systems with a capacity greater than what amount?
- 10064What protection is required for receptacles installed for the connection of EV charging equipment?
- 10065An EVSE has a maximum load of 48 amperes. What is the minimum OCPD rating for the branch circuit supplying it?