序言这是CSA C22的第三版。2个15号电热暖垫。它取代了1991年和1954年出版的前两个版本。它是CSA集团根据《加拿大电气规范》第二部分发布的一系列标准之一。有关《加拿大电气规范》第二部分标准的一般信息，请参见CAN/CSA-C22的前言。2号，0号。本版本与前一版本之间的主要差异包括a）对恒温器要求的更新；和b）参考出版物的更新。范围1。1本标准适用于根据《加拿大电气规范》第一部分的规定，在非危险场所使用的带相关控制装置的电线连接电加热暖垫，其设计用于标称120 V交流电路。 1.2本标准适用于包含一个或多个暖垫的通用电热垫。1.3本标准涵盖以下类型的通用保暖垫，包括防水垫:a）单热单速保暖垫；b） 多个保暖垫；c）单热多速暖垫。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；“应该”用于表示建议或建议但不需要的建议；“可”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； 随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。

PrefaceThis is the third edition of CSA C22.2 No. 15, Electrically heated warming pads. It supersedes the previous editions published in 1991 and 1954. It is one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0. The major differences between this edition and the previous edition include a) updates to the requirements for thermostats; and b) updates to the reference publications.Scope1.1 This Standard applies to cord-connected, electrically heated warming pads with associated control units, for household and hospital use, to be used in nonhazardous locations, designed for nominal 120 V ac circuits, in accordance with the Canadian Electrical Code, Part I. 1.2 This Standard applies to general use electrically heated cushions incorporating one or more warming pads. 1.3 General use warming pads, including waterproof pads, of the following types are covered by this Standard: a) single-heat, single-speed warming pads; b) multi-heat warming pads; and c) single-heat, multi-speed warming pads. 1.4 In 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.