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Code Conundrum October 2017 • Ray Yousef

October 6, 2017 | By Ray Yousef

October 6, 2017 — Tackle the code conundrum if you dare!

Question 1
Motor disconnecting means shall not be of a type that is electrically operated, either automatically or by remote control.

a) True    
b) False

Question 2
Overhead consumer’s service conductors shall not be less than  copper wire.


a) #12 AWG    
b) #10 AWG    
c) #8 AWG    
d) None of the above

Question 3
Where conductors are used in exposed wiring and are subject to corrosive liquids or vapours in a Category 2 location, they shall be of a type with corrosion-resistant protection and be located more than  horizontally from floors, decks or stairs.

a) 1.0 m    
b) 1.5 m    
c) 2.0 m    
d) 2.5 m

ANSWERS to this month’s questions in November’s Electrical Business. MEANTIME, here are the answers to the September 2017 Code Conundrum!

Question 1
When a two-conductor NMS cable is used for a switch loop, and the connections are made so that the black wire is the return conductor from the switch to the outlet, does the CE Code require you to tape the white wire with black tape at the switch?

b) No. Rule 4-036(2).

Question 2
What is the minimum distance for spacing between supports for electrical non-metallic tubing?

c) 1.0 m. Rule 12-1504.

Question 3
The CE Code does not allow Class 2 circuits to be installed underground.

b) False. Rule 16-226(1).

How did YOU do?    
3/3 = Master Electrician  
2/3 = Journeyman
1/3 = Apprentice  
0/3 = Bricklayer?!?

The Code Conundrum is compiled by Ray Yousef, a code engineer with Ontario’s Electrical Safety Authority.

* This article also appears in the October issue of Electrical Business Magazine.

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