Preface
This is the first edition of CAN/CSA—C22.2 No. 165, Electric Boilers, one of a series of Standards issued by the Canadian Standards Association under Part II of the Canadian Electrical Code.
This Standard applies to stationary hot—water and steam boilers for residential, commercial, and industrial use that utilize metal sheathed immersion—type heater elements and are intended for permanent connection to the source of supply. It does not apply to electrode—type boilers.
In the development of this Standard, the corresponding Underwriters Laboratories Inc. Standard for electric boilers was reviewed with a view to harmonizing the requirements wherever possible.
This Standard sets minimum requirements that are not intended to conflict with or supersede the requirements of CSA Standard B51 or other applicable standards for boilers that fall under the provisions of the Boilers and Pressure Vessels Act of the provinces or territories of Canada.
For general information on the Standards of the Committee on Canadian Electrical Code, Part II see the Preface of CSA Standard CAN/CSA-C22.2 No. 0, General Requirements--Canadian Electrical Code, Part II.
This Standard was prepared by a Subcommittee of the Technical Committee on Industrial Products under the jurisdiction of the Steering Committee on the Canadian Electrical Code, Part II and formally approved by these Committees. It has been approved as a National Standard of Canada by the Standards Council of Canada.
Scope
1.1
This Standard applies to stationary, permanently-connected hot-water and steam boilers for use on nominal system voltages of 600 V and less, for residential, commercial, and industrial use in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I.
1.2
This Standard applies to boilers utilizing metal sheathed-type heater elements.
1.3
This Standard does not apply to
(a) storage-type water heaters as covered in CSA Standard CAN/CSA-C22.2 No. 110;
(b) swimming pool and spa hot-water heaters;
(c) electrode-type boilers;
(d) industrial heating equipment covered in CSA Standard C22.2 No. 88; or
(e) electric heating equipment for medical and dental use covered in CSA Standard C22.2 No. 121.
1.4
This Standard sets minimum requirements. It is not intended that the requirements of this Standard conflict with or supersede the requirements of CSA Standard B51 or any other applicable standard for boilers that fall under the provisions of the Boilers and Pressure Vessels Act of the provinces or territories of Canada.
1.5
The values given in SI (metric) are the standard. The values given in parentheses are for information only.
