Ontario Electrical Safety Code 27th Edition Public Consultation

Please be advised that an unintended omission from the Canadian Electrical Code (CE Code) has been identified. Due to this oversight, ESA is reinstating the existing Ontario Electrical Safety Code version of Rule 10-808 in its Recommendation to the Ministry of Government and Consumer Services. It is included as Rule 10-611 Installation requirements for bonding conductors.

Rationale: During the CE Code approval process led by the Canadian Standards Association (CSA), Rule 10-808 (installation requirements for bonding conductors) was unintentionally excluded from the final Section 10 approval document at the national level (CSA).

During the development of the 2018 Edition of the CE Code, Section 10 was rewritten and reconfigured in an intuitive and user-friendly format. During this process, Rule 10-808 was unintentionally excluded in the final version and, as a result, the CE Code 2018 (national-level) does not contain the safety requirements related to the installation of bonding conductors.

This Rule was originally introduced in the CE Code in 1972 and has evolved over time as required. The Rule was initially introduced to set important safety requirements regarding the installation of equipment bonding conductors.

CSA is taking steps to correct this unintended omission through a proposal to restore this requirement for CE Code 2021. In the meantime, to mitigate risks associated with this gap in guidance, ESA has included the 2015 version of Rule 10-808 in the CE Code as an Ontario-specific amendment.

Rule 10-808 has been renumbered to Rule 10-611 in the 2018 Ontario Electrical Safety Code.

Consultation Feedback

ESA thanks all stakeholders who submitted comments and feedback during the public consultation for Ontario Amendment (OA) proposals.

The below resolution sheet reflects the comments received along with resolution. The revised proposal drafts are based on ESA’s review of the feedback received during the public consultation and discussion with Ontario Provincial Code Committee (OPCC).

Once the overall adoption of the Ontario Electrical Safety Code (OESC) “27th edition” is endorsed by ESA’s Board of Directors, The proposed changes will be submitted to the provincial Government for review and approval.

ESA is recommending to the provincial Government that the OESC 27th edition come into effect May 2019.

The Electrical Safety Authority (ESA) is reviewing the Ontario Electrical Safety Code (OESC) requirements to ensure the regulatory framework provides the appropriate balance between the need to ensure safety and supporting modernization and eliminating unnecessary encumbrance on industry.

ESA sought the views of contractors, consumers, businesses and other stakeholders on all proposed amendments to the Ontario Electrical Safety Code. The consultation ran from Tuesday March 6 to Friday April 20, 2018.

Proposed Ontario Amendments

Proposal Number


Description of Change

Proposed by


2-005(h) New

Application for inspection not required for elevating devices

Electrical Safety Authority


Section 2

Replace “inspection department” with “Authority”

Electrical Safety Authority


Section 2

Change “Application for Inspection” to “Notification” and others

Electrical Safety Authority



Clarification to exemptions from an application for inspection a notification

Electrical Safety Authority



Add requirements for Plan Review of energy storage installations and of standby generation that supports life safety loads

Electrical Safety Authority



Editorial change to clarify when plan review is not required

Electrical Safety Authority


2-022(3) and Appendix B Note

Amend requirements for lighting equipment approval

Electrical Safety Authority



Relocate Ontario amendment about the use of a metal frame of a building as a grounding conductor.

Electrical Safety Authority


12-022 New

Requirements for cables and raceways installed in metal corrugated roof decking

Electrical Safety Authority


16-222 and Appendix B Note

Amend requirements for equipment connected to Class 2 circuits

Electrical Safety Authority



Delete current Ontario Amendment to Rule 24-104(2)

Electrical Safety Authority



Delete current Ontario Amendment to Rule 26-724(f)(i) (2015)

Electrical Safety Authority


28-500(4) and Appendix B Note New

Add new requirement for use of manual motor controllers not suitable as disconnecting means

Office of the Chief Coroner & Ontario Forensic Pathology Service



Delete existing Ontario Amendment to CE Code Rule 30-200(1)

Electrical Safety Authority


Rule 64-000 and 64-900s New

Include energy storage systems in Section 64

Electrical Safety Authority


68-072 New

Add new requirement for disconnecting means for pools and hot tubs

Electrical Safety Authority



Amend Specification 41 to include height requirements for a pole mounted transfer device

Electrical Safety Authority


Appendix A

Amend Appendix A as non-mandatory

Electrical Safety Authority


Appendix B Note to Rule 2-024

Amend to recognize other certification bodies

Electrical Safety Authority


78-000, 78-200 to 78-210 and 78-052

Delete current Ontario Amendment to Rules 78-000 and 78-200 to 78-210, and amend Rule 78-052 (CE Code 2018) to clarify GFCI requirements for branch circuits

Electrical Safety Authority


30-1400 and Appendix B Note

Clarification that Rules 30-1402 to 1410 apply to LED luminaires supplied by Power over Ethernet

Electrical Safety Authority


26-656 New

Increased AFCI requirements in dwelling units

Electro Federation Canada


30-1009 New

Clearances of poles supporting luminaires

Electrical Safety Authority



Amend requirement for Roadway lighting systems near distribution lines

Electrical Safety Authority


16-310 and 16-330 (8) New

Amend ampacity rating of Power over Ethernet (PoE) source equipment

Peter Olders, Ontario Electrical Industry Training Trust