前言:这是CSA C22.2第128号自动售货机的第四版。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。它取代了1995年、1990年和1963年出版的先前版本。有关加拿大电气规范第二部分标准的一般信息，请参阅CAN/CSA-C22.2第0号一般要求-加拿大电气规范第二部分的前言。本版本与前一版本的主要区别包括:a）增加了新的要求，以防止火灾/冲击和机械危险；b） 对永久连接自动售货机的新要求；c） 外部附件接线的新要求；d） 对电子保护电机的新要求；e） 热水器的新要求；f） 变压器和电源的新要求；g） 过压保护和限压装置的新要求； h） 增加了垫圈和聚合物材料的加速老化试验要求；andi）增加和修订冲击试验要求，以及增加溢出试验。范围:1.1本标准适用于根据《加拿大电气规范》第I.1.2部分的规定，设计用于非危险场所商业应用的独立式自动售货机。本标准适用于额定电压不超过250 V的制冷和非制冷单相自动售货机。1.3本标准适用于室内或室外使用的自动售货机。1.4本标准还适用于额定电压不超过250 V的独立硬币、货币或信贷机制，单相，拟在工厂或现场安装在自动售货机中。1.5国际单位制给出的数值是本标准中的记录单位。括号中给出的值仅供参考和比较。 1.6在本标准中，“应”用于表示要求，即用户有义务满足的规定，以符合本标准；“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（强制性）或信息性（非强制性）以定义其应用。

Preface:This is the fourth edition of CSA C22.2 No. 128,Vending machines. It is one of a series of Standards issued by CSA Group under Part II of theCanadian Electrical Code. It supersedes previous editions published in 1995, 1990, and 1963.For general information on the Standards of theCanadian Electrical Code, Part II, see the preface of CAN/CSA-C22.2 No. 0,General Requirements — Canadian Electrical Code, Part II.The major differences between this edition and the previous edition include:a) the addition of new requirements to prevent fire/shock and mechanical hazards;b) new requirements for permanently-connected vending machines;c) a new requirement for wiring to external accessories;d) a new requirement for electronic protected motors;e) new requirements for water heaters;f) new requirements for transformers and power supplies;g) new requirements for protection against excessive pressure and pressure limiting devices;h) the addition of accelerated aging test requirements for gaskets and polymeric materials; andi) the addition of and revision to impact test requirements, as well as the addition of a spill test.Scope:1.1This Standard applies to self-contained vending machines designed to be installed and used in commercial applications in nonhazardous locations in accordance with the Rules of theCanadian Electrical Code, Part I.1.2This Standard applies to both refrigerated and non-refrigerated vending machines rated 250 V or less, single-phase.1.3This Standard applies to vending machines designed for indoor or outdoor use.1.4This Standard also applies to self-contained coin, currency, or credit mechanisms, rated at not more than 250 V, single-phase, intended to be factory- or field-installed in vending machines.1.5The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.1.6In 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.