序言这是CSA Z91《暂停设备运行的健康和安全规范》的第六版。它取代了2002年以同一标题出版的前一版，以及1990年、1980年、1959年和1949年以《窗户清洁操作安全规范》为题出版的版本。本版本的主要变化包括a）更新了吊柱的要求；b） 澄清便携式设备的要求；c） 更新的培训要求；d） 更新文件中的数字，以提高可读性；e） 建筑防护装置（尤其是玻璃栏杆）上的索具要求；f）包括关于本标准和绳索接入方法之间关系的新资料性附录。简介本标准的目的是为在建筑物或构筑物上悬挂的永久安装和临时设备上工作或占用设备的人员提供基本的职业健康和安全要求。 此类设备包括但不限于悬挂式平台、bosun？s椅、斜坡上的舞台和悬挂式工作笼。它不包括升降装置、由地面或建筑立面支撑的平台，或悬挂在起重机或起重机上的设备。尽管本标准的根源在于窗户清洁行业，但本标准旨在适用于使用悬挂设备的任何其他类型的工作活动。在制定本标准时，技术委员会考虑了具体活动的需求，如外部建筑清洁、涂漆、密封剂和隔热材料的应用、砌砖工程重新粉刷、翻新、检查和相关建筑/结构维护。本标准也可适用于非- 偶尔在悬挂设备上进行的传统活动，如观察或摄影。虽然对各种应用中使用的适当设备提出了建议，但省级法规和条例可能会对加拿大工作场所的实际应用产生额外影响。建议用户在当地法规、省级劳动法规和制造商中查找此信息？信息本标准中包含的具体义务和责任适用于设备制造商、建筑/结构所有者、建筑维护公司、独立承包商、暂停设备的操作员以及任何占用暂停设备的人员。本标准中的标准以允许省级法规和市政规范引用的方式编写。 范围1。1本标准包括用于进入建筑物或构筑物内部或外部、或两侧、天花板和拱腹的各类悬挂设备（见图1）的安全操作要求。本标准中提到的许多设备都是根据CAN/CSA-Z271和其他参考标准设计、安装、检查和测试的。本标准不适用于起重机悬挂平台或吊篮（见CSA Z150）、多点桥梁平台或悬挂式脚手架。注:虽然本标准无意涵盖设备设计和建筑规定，但CAN/CSA-Z271和本标准均包含悬挂设备设计和运行的必要信息。1. 2本标准规定了悬挂设备的安全要求，这些设备通常用于但不限于窗户清洁、建筑物外部清洁、涂漆、密封剂和隔热材料的应用、砌砖、重新粉刷、翻新、检查和相关建筑/结构维护。1.3本标准不旨在阻止新设备或实践的开发，也不旨在具体规定应如何处理创新。注:1）使用不同于本标准所述的实践、设备或安全装置，可被视为符合本标准的要求，前提是能够证明其符合具有管辖权的机构或代表其行事的认证机构的要求，这些差异不会影响设备或安全装置的适用性或其预期用途。 2） 关于绳索通道与本标准和CAN/CSA-Z271所涵盖设备之间关系的信息，见附录C.1.4。如果本标准的要求与本标准中提及的其他标准或规范的要求不一致，则以本标准的要求为准。注:有关建筑物安装要求的信息，请参考适用的管辖建筑规范。1.5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。1.6国际单位制给出的数值为本标准中的记录单位。括号中给出的值仅供参考和比较。

PrefaceThis is the sixth edition of CSA Z91, Health and safety code for suspended equipment operations. It supersedes the previous edition published in 2002 under the same title and the 1990, 1980, 1959, and 1949 editions published under the title Safety Code for Window Cleaning Operations. Key changes in this edition include a) updated requirements for davits; b) clarification of requirements for portable equipment; c) updated training requirements; d) updated figures throughout the document to enhance readability; e) requirements for rigging over building guards (particularly glass railings); and f) inclusion of a new informative annex on the relationship between this Standard and rope access methods.IntroductionThe purpose of this Standard is to provide basic occupational health and safety requirements for persons working from or occupying equipment, both permanently installed and temporary, suspended from buildings or structures. Such equipment includes, but is not limited to, suspended platforms, bosun?s chairs, stages running on inclines, and suspended work cages. It does not include elevating devices, platforms supported from the ground or building elevations, or equipment suspended from cranes or hoists. Although the roots of this Standard lie in the window cleaning trade, the Standard is intended to be applied to any other type of work activity using suspended equipment. In developing this Standard, the Technical Committee considered the needs of specific activities such as exterior building cleaning, painting, application of sealants and insulation, brickwork repointing, renovations, inspections, and related building/structure maintenance. This Standard may also be applied to non-traditional activities, such as observation or photography, that are occasionally carried out from suspended equipment. Although recommendations are made on appropriate equipment to use for various applications, provincial codes and regulations could have an added effect on the actual application to Canadian workplaces. The user is advised to seek this information in local codes, provincial labour regulations, and manufacturers? information. Specific obligations and responsibilities contained in this Standard apply to equipment manufacturers, building/structure owners, building maintenance companies, independent contractors, operators of suspended equipment, and any person occupying suspended equipment. The criteria in this Standard are written in a way that will allow the Standard to be referenced in provincial regulations and municipal codes.Scope1.1 This Standard includes requirements for the safe operation of various types of suspended equipment (see Figure 1) used to gain access to interior or exterior, or both, sides, ceilings and soffits of buildings or structures. Much of the equipment referred to in this Standard is designed, installed, inspected, and tested in accordance with CAN/CSA-Z271 and other referenced standards. This Standard does not apply to crane-suspended platforms or baskets (see CSA Z150), multi-point bridge platforms, or hanging scaffolds. Note: While this Standard is not intended to cover equipment design and building provisions, both CAN/CSA-Z271 and this Standard contain necessary information for design and operation of suspended equipment. 1.2 This Standard specifies the safety requirements for suspended equipment that is normally used for, but whose use is not limited to, window cleaning, exterior building cleaning, painting, application of sealants and insulation, brickwork, repointing, renovations, inspection, and related building/structure maintenance. 1.3 This Standard is not intended to prevent the development of new equipment or practices or to prescribe specifically how innovations should be handled. Notes: 1) The use of practices, equipment, or safety devices that are different from those described in this Standard may be deemed to meet the requirements of this Standard, provided that it can be demonstrated to the satisfaction of the authority having jurisdiction, or the certification agency acting on its behalf, that these differences will not impair the suitability of the equipment or safety devices, or their intended use. 2) Information on the relationship between rope access and the equipment covered in this Standard and CAN/CSA-Z271 can be found in Annex C. 1.4 Where the requirements of this Standard are at variance with the requirements of other standards or codes referred to in this Standard, the requirements of this Standard take precedence. Note: Refer to applicable jurisdictional building codes for information relevant to requirements for installations on buildings. 1.5 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. 1.6 The 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.