范围1.1本标准适用于具有固有过热保护的交流和直流电机，其设计符合《加拿大电气规范》第一部分的规定，如下所示:a）额定电压不超过600 V且电机电路中连接有保护装置的电机；b） 额定电压不超过600 V的阻抗保护电机；andc）额定电压不超过5000 V的电机，其保护装置连接在额定电压不超过600 V的外部控制电路中。 1.2本标准适用于配有单独响应电机温度的保护装置的电机；orb）电机温度和通过装置的电机电流，但不适用于带有单独对电流作出响应的保护装置的电机。1.3本标准不适用于具有固有过热保护的密封（气密）型电机压缩机（见CSA C22.2 No.140.2）。1.4在本标准中，“应”用于表示要求，即用户为遵守本标准而有义务满足的规定； “宜”用于表示建议或建议但不需要的建议；“may”用于表示一个选项或在标准范围内允许的选项。注释随附条款不包括要求或替代要求；随附条款的注释旨在与文本中的解释性或信息性材料分开。表和图的注释被视为表或图的一部分，可以作为要求编写。附录被指定为规范性附录（强制性附录）或信息性附录（非强制性附录）- 强制性）定义其应用。

Scope1.1This Standard applies to ac and dc motors with inherent overheating protection designed to be used in accordance with theCanadian Electrical Code, Part I, as follows:a) motors with a voltage rating not exceeding 600 V and with a protective device connected in the motor circuit;b) impedance-protected motors with a voltage rating not exceeding 600 V; andc) motors with a voltage rating not exceeding 5000 V and having a protective device connected in an external control circuit with a voltage rating not exceeding 600 V.1.2This Standard applies to motors with protective devices that are responsive toa) motor temperature alone; orb) motor temperature and motor current passing through the device but does not apply to motors with protective devices that are responsive to current alone.1.3This Standard does not apply to sealed (hermetic) type motor compressors with inherent overheating protection (see CSA C22.2 No. 140.2).1.4In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.