Electrician Red Seal · Question
An electrician is running NMD90 (non-metallic sheathed cable) through bored holes in wood studs. What is the minimum distance that the edge of the bored hole must be from the nearest edge of the stud to avoid the need for a steel plate protector, according to the CEC?
Rule 12-516(1) in the CEC states that where NMD90 cable passes through bored holes in wood studs, the holes must be located not less than 32 mm (1 1/4 in.) from
Start free practice for Electrician Red Seal
150 questions · no signup required · 40 free questions per day
Question: An electrician is running NMD90 (non-metallic sheathed cable) through bored holes in wood studs. What is the minimum distance that the edge of the bored hole must be from the nearest edge of the stud to avoid the need for a steel plate protector, according to the CEC?
Answer options:
- 19 mm (3/4 in.)
- 25 mm (1 in.) ✅ 32 mm (1 1/4 in.)
- 38 mm (1 1/2 in.)
Correct answer: 32 mm (1 1/4 in.)
Explanation: Rule 12-516(1) in the CEC states that where NMD90 cable passes through bored holes in wood studs, the holes must be located not less than 32 mm (1 1/4 in.) from the nearest edge of the stud. If the distance is less, a steel plate protector is required to prevent accidental nail or screw penetration.
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.