August 10, 2016 – Tackle the August 2016 code conundrum if you dare!

QUESTION 1
While it is permitted to use electrical non-metallic tubing (ENT) underground and in concealed locations, it is not permitted in exposed locations.

a) True    
b) False

QUESTION 2
When installing receptacles for dwelling units, the CE Code requires that no point along the floor line of any usable wall space is more than ___ metres horizontally from a receptacle in that or an adjoining space.

a) 1 m    
c) 1.8 m
b) 1.2 m    
d) 3.6 m

QUESTION 3
For a mobile home, the minimum length of #6AWG power supply cord measured from the attachment plug to the point of entrance to the unit is:

a) 4 m  
c) 6 m
b) 5 m     
d) 7.5 m

Answers to these questions next month. Meantime, here are the answers to the July 2016 Code Conundrum:

Question 1
Where the DC arc fault protection is not located at the photovoltaic module, mechanical protection is required for PV source circuit conductors installed on or above buildings to protect against rodent damage.

a) True. Rule 64-210(5).

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

c) 30A. Rule 62-114(2).

Question 3
When installed receptacles of configuration 5-20RA are exposed to the weather and facing downward (at an angle of 45 degrees or less from the horizontal), cover plates marked “Wet Location Only When Cover Closed” are required.

a) True. Rule 26-702(3).

HOW DID YOU DO? 

• 3/3 = Master Electrician
• 2/3 = Journeyman
• 1/3 = Apprentice
• 0/3 = Plumber?!?

The Code Conundrum is compiled by Ray Yousef of Ontario’s Electrical Safety Authority.

N.B. Always consult your AHJ for more specific interpretations.

* This article also appears in the August 2016 edition of Electrical Business Magazine. Check out our ARCHIVE page for back issues.