Code Conundrum February 2019

Ray Yousef
February 13, 2019
By Ray Yousef
February 13, 2019 - Tackle the Code Conundrum if you dare!

Question 1
Receptacles in CSA configurations 5-15R or 5-20R, installed in buildings under construction:
a) Shall be protected by GFCI Class A.
b) Can be wired by NMSC according to Rules 12-500 to 12-526.
c) Shall be kept entirely separate from lighting branch circuits.
d) All of the above.

Question 2
True or false: the CE Code allows the use of non-metallic sheathed cable in a building of combustible construction.
a) True.
b) False.

Question 3
For a mobile home, the minimum permitted size of conductor for the power supply cord is:
a) #10 AWG.
b) #8 AWG.
c) #6 AWG.
d) #4 AWG.

Answers to this month’s questions will appear in the April 2019 issue of Electrical Business. Meanwhile, here are the answers to the December 2018 Code Conundrum:



Question 1
Fuses permitted to be used for overcurrent protection, where circuit overload protection is provided by other means, are:
d) A & B: Class C and HRCII-MISC fuses. Rule 14-212, CE Code 2018

Question 2
Does the CE Code allow two supply services of the same voltage from the same system of any supply authority to enter a building if one will only be used for supplying a fire pump?
a) Yes. Rule 6-102, CE Code 2018

Question 3
Rigid main contact conductors for an electrical hoist shall be supported so there is an air space of not less than _____ between conductors.
c) 25 mm. Rule 40-012, CE Code 2018.


How did YOU do?

3 – Master Electrician
2 – Journeyman
1 – Apprentice
0 – Bricklayer ?!?



Ray Yousef is a code engineer with Ontario's Electrical Safety Authority (ESA). For more information, visit www.esasafe.com.

This column originally appeared in the February 2019 issue of Electrical Business magazine.

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