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Code Conundrum September 2021

Tackle the Code Conundrum... if you dare!

September 21, 2021  By Ray Yousef

September 21, 2021 – Here you’ll find the answers to the Code Conundrum from our June 2021 edition.

The next round of new questions starts again with our upcoming 2021 edition. Good luck!

QUESTION 1: The ampacity of the supply conductors from a small wind turbine system shall not be less than ___ of the maximum rated current of the generator.

a) 125%. CORRECT. Rule 64-304.
b) 135%
c) 250%
d) 300%


QUESTION 2: In buildings for residential occupancy, two or more heating fixtures used for space heating are permitted to be connected to a branch circuit, provided the branch circuit overcurrent devices are rated not more than ___ .

a) 15 A
b) 20 A
c) 30 A. CORRECT. Rule 62-114.
d) 40 A

QUESTION 3: The minimum headroom in working space around an elevator controller and disconnecting means shall be:

a) 1.6 m
b) 2.0 m. CORRECT. Rule 38-005.
c) 2.2 m
d) 2.5 m

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 other great content—appears in the September 2021 edition of Electrical Business Magazine. Even more back issues are located in our Digital Archive.

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