Code Conundrum October 2022
November 1, 2022 | By Ray Yousef
Tackle the code conundrum... if you dare!
November 1, 2022 – Welcome to the newest round of questions that test your knowledge of the CE Code-Part I. Answers will appear in the December 2022 edition of Electrical Business Magazine (and here at EBMag.com). Good luck!
QUESTION 1 – The CE Code requires a splitter to be installed where two or more conductors are connected to a conductor larger than ___ copper.
a) #4 AWG
b) #6 AWG
c) #1/0 AWG
d) #2/0 AWG
QUESTION 2 – For single dwelling units, the CE Code requires a minimum ___ duplex receptacles to be installed in a 2-door car garage with overhead door openers, a cord-connected central vacuum, and a garbage disposal unit installed.
QUESTION 3 – Does the CE Code permit a bare neutral in a consumer service when this conductor is made of copper and run in a raceway?
ANSWERS to Code Conundrum September 2022 edition
QUESTION 1 – A totally enclosed, non-ventilated Class B motor requires conductors rated at 38A. The minimum size copper multi-conductor cable that can be used is:
a) No. 10 AWG TECK90
b) No. 8 AWG TECK90. Rule 28-104, Tables 37 and 2.
c) No. 8 AWG TW75
d) No. 6 AWG TW75
QUESTION 2 – Rapid shutdown is required for PV systems on or in buildings where the PV source or output conductors are:
a) More than 1.5 m from the array, with shutdown within 10 s.
b) More than 1.5 m from the array with shutdown within 30 s.
c) More than 1 m from the array, with shutdown within 10 s.
d) More than 1 m from the array, with shutdown within 30 s. Rule 64-218.
e) Rapid shutdown not required.
QUESTION 3 – Equipment marked Ex ia Gb is suitable for installation in a Zone 0 location.
b) False. Rule 18-090, Table 18.
How did YOU do?
3 • Seasoned journeyman
2 • Need refresher training
1 • Apprentice
0 • Just here for fun!
Ray Yousef is a code engineer with Ontario’s Electrical Safety Authority.
You’ll find all Back Issues of Electrical Business Magazine in our Digital Archive.
Print this page