Preface
This is the fourth edition of CSA C22.2 No. 150, Microwave ovens, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the previous editions published in 1989, 1980, and 1974. This Standard also replaces the CSA Technical Information Letter (TIL) No. C-31, Interim Certification Requirements for Microwave Ovens.
The major differences between this edition and the previous edition include the addition of requirements for polymeric enclosures, internal wiring flame rating and electrical connections, the nichrome wire ignition test, the potato fire containment test, the waveguide and stirrer fire containment test, and the thermally protected AC fan motor ignition test.
For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0, General requirements — Canadian Electrical Code, Part II.
Scope
1.1
This Standard applies to microwave ovens capable of generating less than 25 kW of microwave power and intended to be used in nonhazardous locations in household and commercial applications, in accordance with Canadian Electrical Code, Part I (CE Code).
1.2
This Standard applies to microwave ovens intended to operate through the application of electromagnetic energy at frequencies within the ISM bands above 890 MHz. (See Clause 3.)
1.3
This Standard applies to
a) cord-connected microwave ovens intended for
i) household use on a nominal system voltage of 120 V; and
ii) commercial use on nominal system voltages up to 240 V; and
b) permanently connected microwave ovens intended for
i) household use on a nominal system voltage of 120 V; and
ii) commercial use on nominal system voltages up to 600 V.
1.4
This Standard does not apply to microwave ovens used for industrial applications.
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