General OBC Knowledge
Specific OBC Regulations
General ESA Knowledge
Electrical Safety Codes
Electrical Safety Practices
100

What does OBC stand for?

What is the Ontario Building Code?


100

According to the OBC, what is the minimum width for a residential exit door?

What is 32 inches (810 mm)?

100

What does ESA stand for?

What is the Electrical Safety Authority?

100

Electrical Safety CodesWhat is the standard voltage for residential electrical systems in Ontario?

What is 120/240 volts?

100

What color is typically used for ground wires in residential electrical systems?

What is green or bare copper?

200

Which government body enforces the Ontario Building Code?

What is the Ministry of Municipal Affairs and Housing?

200

What is required for a window to be considered an egress window under the OBC?

What is that it must have a minimum clear opening of 0.35 square meters (3.77 square feet) and no dimension less than 380 mm (15 inches)?

200

Which organization oversees electrical safety inspections and regulations in Ontario?

What is the Electrical Safety Authority (ESA)?

200

Under ESA regulations, who is authorized to perform electrical installations and repairs in Ontario?

Who is a licensed electrical contractor or a certified electrician?


200

What type of breaker is required for circuits supplying kitchen countertops according to the ESA?

What is a Ground Fault Circuit Interrupter (GFCI) breaker?

300

n which year was the current version of the Ontario Building Code enacted?

What is 2012?


300

What fire resistance rating is required for a party wall between two attached residential units according to the OBC?

What is a minimum 1-hour fire resistance rating?


300

What is the primary purpose of the Electrical Safety Authority?

What is to ensure electrical safety through inspection, licensing, and enforcement?


300

What is the maximum allowable voltage drop in a residential electrical circuit according to ESA standards?

What is 3% for branch circuits?

300

How frequently should homeowners test their smoke detectors according to ESA recommendations?

What is once a month?

400

What is the primary purpose of the Ontario Building Code?

What is to establish minimum standards for building construction, renovations, and demolition to ensure public health, safety?

400

According to the OBC, what is the maximum height for a residential guardrail?

What is 1.07 meters (42 inches)?

400

When was the Electrical Safety Authority established?

What is 1999?

400

How often must electrical inspections occur for new construction under ESA regulations?

What is at key stages of the electrical installation, typically at rough-in and final stages?


400

What is the ESA's recommendation for the maximum wattage of a light bulb in a standard household fixture?

What is 60 watts, unless otherwise specified by the fixture?


500

According to the OBC, what is the minimum ceiling height for habitable rooms in a residential building?

What is 2.3 meters (7 feet 6 inches) for most rooms?

500

Under the OBC, what are the requirements for a barrier-free path of travel in a commercial building?

What are a minimum width of 1,100 mm (43 inches), a smooth and continuous surface, and proper signage?

500

What document must be obtained from the ESA before beginning most electrical work?

What is an Electrical Permit?

500

According to the ESA, what is the minimum required clearance for overhead power lines above a residential driveway?

What is 4.5 meters (14.8 feet)?

500

According to the ESA, how often should electrical panels be inspected by a qualified electrician?

What is every 5 years?