From the code book:
? 2-024 Approval of Electrical Equipment
(1) Subject to the other provisions of this Rule, electrical equipment is deemed to be approved if:
(a) A certification organization has issued a report certifying that the equipment conforms to the applicable standards for the equipment;
(b) The report referred to in clause (a) is available to the Inspection Department from the certification organization;
(c) The equipment complies with all standards of design and construction and all terms and conditions set out in the report; and
(d) The equipment bears the certification organization’s mark which identifies equipment certified for use in Canada.
? (2) As an alternative to Subrule (1) electrical equipment is deemed to be approved if:
(a) A field evaluation agency has examined the equipment or a sample and has found that it conforms to the applicable standards for the equipment and presents no undue hazard to persons or property;
(b) The equipment is within the scope of Section 3 of the Code, and within the field evaluation agency’s accreditation under the Standards Council of Canada Act and recognized by the Inspection Department;
(c) The equipment bears a label approved for use in either Ontario or Canada affixed by the field evaluation agency; and
(d) Where the field evaluation agency has examined only a sample, the equipment is of the same design and construction as the sample.
(3) As an alternative to Subrule (1) electrical equipment is deemed to be approved if:
(a) The inspection department has examined the equipment or a sample, found that it conforms to this Code and presents no undue hazard to persons or property;
?(b) The equipment bears a label affixed by the inspection department;
(c) Any fees payable to the inspection department in respect of the examination have been paid; and
(d) Where the examination and testing was of only a sample, the equipment is of the same design and construction as the sample.
(4) Where testing is required for the purposes of subrule (3), the inspection department may accept reports or other evidence of testing from a certification organization, a testing organization, a professional engineer, or other responsible qualified person.
(5) Electrical equipment that is used in or connected to an electrical installation may be inspected under Rule 2-004 , and it shall be deemed to be approved if:
(a) the installation and equipment pass the inspection; and
(b) persons or property would be adequately protected from any undue electrical shock or fire hazard as a result of the inspection.
? (6) No person shall affix to any electrical equipment an approval label that was not issued for that equipment.
? 2-026 Cancellation of Approval
(1) The inspection department may cancel the approval of electrical equipment if:
?(a) The equipment is not being manufactured or produced in accordance with all standards of design and construction and all terms and conditions set out in the certification report for the equipment referred to in Subrule 2-024(1) and (2) ;
(b) The equipment has been shown by field experience to be unduly hazardous to persons or property;
(c) An examination of the equipment or of the certification report for the equipment shows that the equipment does not comply with all applicable standards; or
(d) An examination of the certification report or the equipment shows that the equipment cannot be installed in accordance with this Code.
(2) When an approval has been cancelled, the equipment shall be deemed to be not approved; and
? (3) The certification organization or field evaluation agency shall make provisions to recall equipment that is deemed to be not approved
? 2-028 Miscellaneous
(1) The testing and inspection by the inspection department of any electrical equipment under Subrule (3) of Rule 2-024 may be carried out by such inspectors at such times and places and in such manner as the inspection department from time to time determines.
(2) Subject to Subrule (5) of Rule 2-024 , any electrical equipment used or capable of being used or adapted to serve or perform any particular purpose or function when connected to an electrical installation shall be approved before being so connected unless the connection is made for the purpose of inspection or testing of the equipment under this Code.
(3) Any electrical equipment that consists of an assembly or combination of other electrical equipment is subject to this Code respecting approval, and is not approved by reason only that any or all of the component parts thereof have been individually approved.
? 2-030 Deviation or Postponement
A deviation from or postponement of the requirements of this Code is lawful in respect of an electrical installation where adequate proof that the deviation or postponement does not create an undue hazard to persons or property under the circumstances has been provided to an inspector of that installation.
? 2-032 Damage and Interference
(1) No person shall damage or cause any damage to any electrical installation or electrical equipment.
(2) No person shall interfere with any electrical installation or electrical equipment in the course of alterations or repairs to non- electrical equipment or structures except where it is necessary to disconnect or move components of an electrical installation, in which event it shall be the responsibility of the person carrying out the alterations or repairs to ensure that the electrical installation is restored to a safe operating condition as soon as the progress of the alterations or repairs permit.
(3) No person shall remove any tag, seal or warning applied to an electrical installation or applied to electrical equipment by the inspection department from that electrical installation or electrical equipment without permission from the inspection department.
? 2-034 Use of Approved Equipment (see Appendix B )
No one shall use any electrical equipment other than approved electrical equipment of a kind or type and rating approved for the specific purpose for which it is to be employed.
? 2-036 General
No contractor shall perform any work on an electrical installation in any manner contrary to the requirements of this Code.
Bulletin 2-7-11 Approval of Electrical Equipment - Rule 2-024 (page 15)
The Ontario Electrical Safety Code recognizes certification organizations accredited by the Standards Council of Canada to approve electrical equipment. Only equipment bearing one of the marks or labels shown in the drawings is approved.
Equipment to meet the requirements of the Ontario Electrical Safety Code must be approved to Canadian standards. This is signified by the "C" outside the Entela, ETL, MET, OMNI, QAI, TUV Rheinland and UL marks. The “NRTL/C” shown with one Canadian Standards Association mark, and the “cULus” shown with one Underwriters Laboratories mark, indicate the equipment with those marks is also compliant with United States standards.
A Canadian Standards Association mark with "NRTL" only, and Underwriters Laboratories mark without the “c” at the eight o’clock position, indicates the equipment is compliant with United States standards.