前言:这是CSA C22的第十一版。2第0号，一般要求——加拿大电气规范，第二部分。它取代了2010年、1991年、1982年、1975年、1960年、1956年、1950年、1941年、1936年和1932年出版的之前版本。本版本的变化包括:a）更新定义，以符合加拿大电气规范第一部分；b） 为高压设备的间距表增加一种替代方法；c） 取消双重绝缘的要求；d） 禁止石棉；e） 对压力容器的新引用；andf）条款的一般编辑变更和澄清。《加拿大电气规范》是CSA集团发布的出版物，分为几个部分。其中第一部分规定了电气设备安装和维护的安全标准，第二部分规定了电气设备施工、测试和标记的安全标准。 第II部分标准由技术委员会管辖下的小组委员会编制，技术委员会反过来对电气安全要求战略指导委员会负责。在编制这些标准时，考虑了相关组织的意见，即监管机构、行业组织和一般利益代表。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。CSA集团已将其作为加拿大国家标准发布。范围和目标:1.1本标准的范围本标准规定了与以下内容有关的要求: a） 定义；b） 建设；c） 符合标准的设备；d） 安全和保护；e） 材料和工作质量；f） 标记；（一般性质的）测试。这些要求适用于《加拿大电气规范》第二部分的所有单独标准（见第1.4条）。1.2《加拿大电气规范》第二部分的单独标准范围《加拿大电气规范》第二部分的单独标准提供了定义，并规定了施工、标记、安装和维护，以及单一类别或紧密相关电气设备组的试验要求。1.3《加拿大电气规范》第二部分的目标作为《加拿大电气规范》第二部分的一部分发布的标准的目标是通过适当的设计、良好的施工和高质量的工作，考虑防止人员受伤和财产损坏。 这些安全标准旨在为电气设备的设计和施工提供要求，主要是为了解决火灾和电击危险，并按照加拿大电气规范第I.1.4部分的规则在加拿大各地使用。本标准中，“应”用于表示要求，即:。，用户为遵守本标准而必须满足的规定；“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。

Preface:This is the eleventh edition of CSA C22.2 No. 0,General requirements — Canadian Electrical Code, Part II. It supersedes the previous editions, published in 2010, 1991, 1982, 1975, 1960, 1956, 1950, 1941, 1936, and 1932.Changes in this edition include the following:a) updates of definitions to align withCanadian Electrical Code, Part I;b) addition of an alternative method to spacing tables for high voltage equipment;c) removal of requirements on double-insulation;d) prohibition of asbestos;e) new reference to pressure vessels; andf) general editorial changes and clarifications of clauses.TheCanadian Electrical Codeis a publication issued by CSA Group in several parts. Among these arePart I, which establishes safety standards for the installation and maintenance of electrical equipment, andPart II, which consists of safety standards governing the construction, testing, and marking of electrical equipment.Part IIStandards are prepared by Subcommittees that operate under the jurisdiction of Technical Committees, which in turn are responsible to the Strategic Steering Committee on Requirements for Electrical Safety. In the preparation of these Standards, the views of interested organizations are taken into account, i.e., regulatory authorities, industrial organizations, and representatives of general interests.This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope and object:1.1 Scope of this StandardThis Standard specifies requirements pertaining to the following:a) definitions;b) construction;c) equipment complying with Standards;d) safety and protection;e) materials and quality of work;f) marking; andg) tests (of a general nature).Such requirements are applicable to all individual Standards of theCanadian Electrical Code, Part II(see Clause 1.4).1.2 Scope of the individual Standards of theCanadian Electrical Code, Part IIThe individual Standards of theCanadian Electrical Code, Part II, provide definitions and specify construction, marking, and test requirements for a single class or closely allied group of electrical equipment.1.3 Objective of theCanadian Electrical Code, Part IIThe objective of Standards issued as part of theCanadian Electrical Code, Part II, is to give consideration to the prevention of injury to persons and damage to property through proper design, good construction, and high quality of work. These safety Standards are intended to provide requirements for the design and construction of electrical equipment, primarily to address fire and electrical shock hazards and for use throughout Canada in conformity with the rules of theCanadian Electrical Code, Part I.1.4 TerminologyIn 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.