Electrical Business

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Code Conundrum February 2022

Tackle the Code Conundrum... if you dare!


February 24, 2022
February 24, 2022
By Ray Yousef


Topics


February 24, 2022 – Welcome to the newest round of questions that test your knowledge of the CE Code-Part I. Answers will appear in the April 2022 edition of Electrical Business Magazine (and here at EBMag.com).

QUESTION 1: Conductors for equipotential bonding shall be permitted to be installed as open wiring, provided that they are adequately secured.

a) True
b) False

QUESTION 2: What size of copper tap conductor is required to connect a metal fence around an outdoor substation to the station ground electrode?

a) #6 AWG
b) 2/0 AWG
c) 3/0 AWG
d) 4/0 AWG

QUESTION 3: Receptacles having 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.
c) shall be kept entirely separate from lighting branch circuits.
d) all of the above.

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ANSWERS to Code Conundrum December 2021 edition.

QUESTION 1: Where circuit overload protection is provided by other means, fuses that are permitted to be used for overcurrent protection are:

a) Class C
b) HRCII-MISC
c) Class H
d) A and B. Rule 14-212.

QUESTION 2: A moulded-case circuit breaker is permitted to be located in a Category 2 location so long as it is contained in a NEMA-1 enclosure.

a) True
b) False. Rule 22-100(3).

QUESTION 3: The power supply of a fire alarm system shall be:

a) provided by a separate circuit. Rule 32-108(1).
b) interlocked with emergency lighting circuit in a hotel.
c) kept at least 3.0 m from any combustible material.
d) all of the above.


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.

This column—along with more great content—appears in the February 2022 edition of Electrical Business Magazine. Back issues are located in our Digital Archive.



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