Code Conundrum February 2018 • Ray Yousef
February 26, 2018 – Tackle February 2018’s Code Conundrum…if you dare!
The minimum ampacity for a feeder supplying power to an industrial building shall be based on a basic load of ___ W/m² of the area of the outside dimension of the building, plus other special loads and electric vehicle supply equipment loads.
a) 15 W/m²
b) 20 W/m²
c) 25 W/m²
d) 50 W/m²
The maximum rating for a circuit breaker protecting exposed wiring for permanent outdoor lighting circuit is:
a) 15 A
b) 20 A
c) 30 A
d) 40 A
All space within 6 m horizontally in any direction from dip tanks and their drain boards, with the space extending to a height of 1m above the dip tank and drain board, is considered:
a) Zone 1
b) Zone 2
c) Category 1
d) Category 2
Answers to this month’s questions in March’s Electrical Business. MEANTIME, here are the answers to the January 2018 Code Conundrum!
Branch circuits that supply receptacles or permanently connected medical electrical equipment within a patient care environment shall only supply loads within that environment.
a) True. Rule 24-102(3), CE Code 2018.
“Flammable limits” of a gas or vapour is defined as the lower and upper ___ in air that forms an ignitable mixture.
b) percentage of volume concentration of the flammable gas. Rule 18-002, CE Code 2018.
A branch circuit in a dwelling unit that feeds a bathroom receptacle and hallway receptacles is exempted from arc fault circuit interrupter (AFCI) requirements.
a) False. Rule 26-724(e), CE Code 2018.
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 originally appeared in the February 2018 issue of Electrical Business Magazine.
Light + Building 2018
March 18-23, 2018
IEEE Electrical Safety Workshop (ESW) 2018
March 20-23, 2018
Electrical Safety Innovation Summit 2018 • Montreal
April 12, 2018