Electrician Red Seal · Question
A single-phase, 120/240 V service entrance is being installed for a small workshop. The service conductors are #2 AWG copper. What is the minimum size copper main grounding conductor (grounding electrode conductor) required to connect the neutral terminal to the grounding electrode system, assuming a driven ground rod is used?
According to CEC Rule 10-114 and Table 17, for service conductors up to #2 AWG copper, the minimum size copper grounding electrode conductor for a driven ground
Start free practice for Electrician Red Seal
150 questions · no signup required · 40 free questions per day
Question: A single-phase, 120/240 V service entrance is being installed for a small workshop. The service conductors are #2 AWG copper. What is the minimum size copper main grounding conductor (grounding electrode conductor) required to connect the neutral terminal to the grounding electrode system, assuming a driven ground rod is used?
Answer options:
- #8 AWG ✅ #6 AWG
- #4 AWG
- #2 AWG
Correct answer: #6 AWG
Explanation: According to CEC Rule 10-114 and Table 17, for service conductors up to #2 AWG copper, the minimum size copper grounding electrode conductor for a driven ground rod (not connected to a continuous metallic underground water pipe) is #6 AWG. If the service conductors were larger than #2 AWG, the grounding conductor would also increase.
Start free practice for Electrician Red Seal
150 questions · no signup required · 40 free questions per day
More about Electrician Red Seal
Related Questions
- A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical
- During a renovation of a commercial kitchen, an electrician needs to replace an old single-phase, 240 V, 5 kW
- A commercial kitchen is being renovated, and several new 4 kW, 208 V, single-phase electric ovens are being in
- What is the minimum working space depth required in front of an electrical panel rated 200 A, 120/240 V, locat
- A Red Seal electrician is setting up temporary power for a construction site. The main temporary service is a
- A new industrial facility requires a 600 V, three-phase, 150 A feeder to supply a motor control centre. The co
More for Electrician Red Seal candidates
Practice tests
Question explanations
- A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical
- During a renovation of a commercial kitchen, an electrician needs to replace an old single-phase, 240 V, 5 kW
- A commercial kitchen is being renovated, and several new 4 kW, 208 V, single-phase electric ovens are being in
- What is the minimum working space depth required in front of an electrical panel rated 200 A, 120/240 V, locat
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Electrician Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.