CPO Electrical Safety and Bonding

Question 1

According to NEC Article 680, what is the minimum distance that receptacles must be located from the inside walls of a swimming pool?

Accepted Answer

10 feet

Answer

NEC Article 680 requires that 125-volt receptacles be located at least 10 feet from the inside walls of a pool to prevent electrical hazards.

Question 2

What is the primary purpose of equipotential bonding in a swimming pool installation?

Accepted Answer

To ensure all metal parts share the same electrical potential

Answer

Equipotential bonding connects all metal components so they share the same electrical potential, preventing dangerous voltage differentials that could shock swimmers.

Question 3

What does GFCI stand for in the context of pool electrical safety?

Accepted Answer

Ground Fault Circuit Interrupter

Answer

GFCI stands for Ground Fault Circuit Interrupter, a safety device that detects small ground faults and shuts off power within milliseconds.

Question 4

Within what distance from a pool edge must all 125-volt receptacles have GFCI protection according to NEC Article 680?

Accepted Answer

20 feet

Answer

NEC Article 680 requires GFCI protection for all 125-volt receptacles located within 20 feet of the inside walls of a pool.

Question 5

What is Electric Shock Drowning (ESD) and why is it a significant risk in swimming pools?

Accepted Answer

AC current leaking into water causing muscle paralysis that prevents swimmers from staying afloat

Answer

ESD occurs when AC current leaks into pool water, creating a voltage gradient that causes muscle paralysis in swimmers, preventing them from swimming to safety.

CPO (Certified Pool Operator Exam) Practice Test

CPO (Certified Pool Operator Exam) Practice Test

CPO Electrical Safety and Bonding