Ontario Electrical Safety Code 28th Edition - Public Consultation

ESA is seeking the views of consumers, businesses and other stakeholders on proposed amendments to the Ontario Electrical Safety Code (OESC). The consultation runs from Monday, March 15 to Thursday, April 29, 2021.

With the adoption of a new Code every three years, ESA reviews the OESC and seeks input on proposed specific amendments that contribute to the electrical safety of Ontarians. The OESC is a critical component to ensuring safe electrical installations in Ontario. For Licensed Electrical Contractors and do-it-yourselfers, it’s an essential tool for any electrical work. The proposed changes for the next version of the OESC, pending government approval, to be in effect is planned for May 2022.

Proposed amendments to the Ontario Electrical Safety Code

Proposal Number

Rule

Description of Change

Proposed by

Cost Impact

2021-OA-001

2-005 c), amended

An Inspection Notification is required for installation of residential elevators even when supplied by Class 2 power supply.

Electrical Safety Authority

Neutral — Proposed amendment is clarification to reduce regulatory burden. An Inspection Notification is required for residential elevator installation. This amendment clarifies and affirms the industry practice that an Inspection Notification is always required.

2021-OA-002

4-004 26), new

Reduced conductors’ size for single dwellings’ services and feeders.

Electrical Safety Authority

Saving Cost — Proposed amendment results in keeping the current practice for residential service conductor sizes to avoid the potential added cost of the CE Code 2021 change introduced to the rule and the deletion of Table 39.

2021-OA-003

10-611, deleted

Deleted existing amendment about installation of equipment bonding conductors.

Electrical Safety Authority

Neutral

2021-OA-004

12-022, deleted

Deleted existing amendment about cables and raceways in roof decking.

Electrical Safety Authority

Neutral

2021-OA-005

2-010(1)20-030, 20-030, 20-034, deleted

Deleted existing amendment about requirements for cylinder exchange.

Electrical Safety Authority

Neutral

2021-OA-006

64-000 1), 64-002, 64-900 to 64-908, deleted

Deleted existing amendment about energy storage systems.

Electrical Safety Authority

Neutral

2021-OA-007

68-072, amended

Maintenance disconnecting means for pool equipment is not required within sight.

Electrical Safety Authority

Neutral — Proposed amendment provides flexibility to installers by exempting disconnecting means for pool equipment from being within sight, if it is lockable and readily accessible.

2021-OA-008

72-114, deleted

Delete existing amendment about location of receptacle on recreational vehicle lot.

Electrical Safety Authority

Neutral
Section 75

2021-OA-009

75-000, amended

Added central metering systems into Scope.

Section 75 Subcommittee

Neutral — Proposed amendment is an editorial change to clarify the scope of Section 75, and reduces regulatory burden.

2021-OA-010

75-002, amended

Added definitions for central metering systems, demarcation point, embedded infrastructure, grades of construction and structure.

Section 75 Subcommittee

Neutral — Proposed amendment reduces regulatory burden to clarify common industry language.

2021-OA-011

75-200, amended

General editorial changes for Specifications 9.1, 9.2, 10.1, 10.2, 11.1, 11.2, 11.3, 11.4, 12.1, 13.1, 13.2, 14.2, 14.4, 15.1, 15.2, 15.3, amended to align with new Spec 35.1.

Specifications 10.3, 10.4, 10.5, 12.2, 12.3, 13.3, 13.4, 14.1, 14.3, 16.2, 17.4, 18.3 amended to align with new Spec 35.1 and removed Note 1 about guying requirement.

Section 75 Subcommittee

Neutral — Proposed amendment results in editorial changes to reflect new Spec 35.

Minimal Increase Guying is required on these pole; guying is a tensioned cable designed to add stability to a free-standing. The proposed amendment will require on additional guy wire to align with other non-tangent and dead end poles which will increase safety.

 

2021-OA-012

75-306, amended

Clarified minimum breaking load to guy wire grade.

Section 75 Subcommittee

Neutral — Proposed amendment is an editorial change to clarify the load to guy wire in imperial and metric, and reduces regulatory burden.

2021-OA-013

75-406, amended

New Rule to indicate attachment methods for neutral conductors. Includes changes to Spec 35 and new Spec 35.1.

Section 75 Subcommittee

Neutral — Proposed amendment is an editorial change to recognize the current industry practice, and reduce regulatory burden.

2021-OA-014

75-504, amended

Added shear bolt type connectors.

Section 75 Subcommittee

Cost Saving — Proposed amendment enables other options that do not require any specialized tool to install.

2021-OA-015

75-604, amended

Revised rule to include new Table 106 for quadraplex cable.

Section 75 Subcommittee

Neutral — Proposed amendment clarifies the sizes for quadraplex cables to help align with Section 10 requirements, and reduces regulatory burden.

2021-OA-016

75-710, amended

Revised clearance requirements of conductors from other structures.

Section 75 Subcommittee

Neutral — The current rule already requires certain clearances to from new customer owned powerline to buildings and structure. The proposed amendments require these clearances to be maintained over the life of the installation.

2021-OA-017

75-902, amended

Revised Central Metering requirements to include pad mounted installations.

Section 75 Subcommittee

Neutral — Proposed amendment enables an easement to the current rule. Specifically, the proposed change recognizes central metering on pad mount transformer not only pole mounted.

2021-OA-018

75-904, amended

Revised requirements for pole-top transfer device.

Section 75 Subcommittee

Neutral — Proposed amendment provides clarification of existing wording and industry practice to align with central metering Rule 75-904 that requires such equipment to be also pad mounted. This revision recognizes that a transfer device can also be ground mounted.

2021-OA-019

Specification 28, amended

General revisions.

Section 75 Subcommittee

Neutral — Clarify Proposed amendment clarifies language in order to not limit the wiring methods that could be used.

2021-OA-020

Specification 34, amended

Added ground butt plate and editorial to changes to items #2 and 3.

Section 75 Subcommittee

Neutral — Proposed amendment enables alternatives installation approaches due to new products that are available on the market.

2021-OA-021

Specification 45, amended

Editorial change.

Section 75 Subcommittee

Neutral — Proposed amendment better aligns with the code Rule. Results in no change in industry practice.

How to Participate

ESA has provided a template for comments. Stakeholders may answer any of the questions provided in the template and/or provide other comments/feedback. The template is available below:

Please provide comments or questions to ESA by Thursday, April 29, 2021 by e-mail to OESC2021.publicConsultation@electricalsafety.on.ca.

Due to Covid-19, the ESA office is not open. We will only be accepting feedback electronically.