请注意:此版本的所有临时修订版将在您购买时提供。用于系统隔离并被评定为单个UnitUL 64201范围和对象的设备本标准适用于包含远程控制和监控的机电接触器的隔离设备，以提供具有规定完整性水平的远程隔离状态指示。该设备用于所需电源断开装置负载侧的附加隔离装置和过电流保护。本标准适用于额定电压不超过1000 Vac或1500 Vdc的电路中使用的隔离设备。系统隔离设备预计将用作断电的手段，以防止意外启动- 停止机器的启动，并作为隔离器，通过确保电能的去除提供电击保护。本设备拟按照国家电气规范NFPA 70和工业机械电气标准NFPA 79:2012进行安装。注——国家电气规范NFPA 70第430.109（A）（7）条中提到了系统隔离设备；NFPA 79:2012《工业机械电气标准》第5.5.4（3）条“电气设备断开（隔离）装置”；以及IEC 60204-1《机械安全标准-机械电气设备-第1部分:一般要求》第5.3.2（d）条。系统隔离设备不用于实现电机启动器或其他运动控制装置的功能。 1.1.2系统隔离设备1。1.2典型应用系统隔离设备主要用于工业机器应用，在这些应用中，经常需要隔离电源，以至于典型断开装置的机械寿命短得令人无法接受，或者机器上有多个入口点需要断开，或者两者都需要。注:多个入口点是访问需求和机器布局的函数。1.2.1本标准的目的是说明:a）系统隔离设备的特性；b） 系统隔离设备的运行条件和行为、其介电性能及其外壳提供的保护程度（如适用）； c） 在系统隔离设备上标记或提供的信息；d） 系统隔离设备的正常使用、安装和运输条件；e） 系统隔离设备的结构和性能；f） 旨在验证是否满足这些条件的试验，以及这些试验所采用的方法。

Please note: All interim revisions for this edition available at time of your purchase will be included.Equipment Used for System Isolation and Rated as a Single UnitUL 64201 Scope and Object This standard applies to isolating equipment incorporating electromechanical contactors remotely controlled and monitored to provide remote isolation status indication with a defined integrity level. This equipment is intended for use as an additional isolating means on the load side of the required supply-disconnecting device and over current protection. This standard applies to isolating equipment that is to be used in circuits of which the rated voltage does not exceed 1000 Vac or 1500 Vdc.The system isolation equipment is expected to be used both as a means for removal of power for prevention of unexpected start-up of a stopped machine and as an isolator to provide protection from electric shock by ensuring the removal of electrical energy.This equipment is intended for installation in accordance with the National Electrical Code, NFPA 70 and the Electrical Standard for Industrial Machinery, NFPA 79:2012.Note - Reference to System Isolation Equipment is found in Article 430.109(A)(7) of the National Electrical CodeNFPA 70; in Clause 5.5.4(3), Devices for Disconnecting (Isolating) Electrical Equipment, of the Electrical Standard for Industrial Machinery, NFPA 79:2012; and in Clause 5.3.2(d) of the Standard for Safety of Machinery - Electrical Equipment of Machines - Part 1: General Requirements, IEC 60204-1.The System Isolation Equipment is not intended to fulfill the function of a motor starter or other motion control device.1.1.2 System isolation equipment1.1.2 Typical applicationThe system isolation equipment is principally intended for industrial machine applications where, isolation of power is so frequently required that the mechanical life of a typical disconnecting means is unacceptably short or where there are multiple entry points on the machine where disconnection is required, or both.Note - Multiple entry points are a function of access needs and the layout of the machine.1.2.1 The object of this standard is to state:a) The characteristics of the system isolation equipment;b) The conditions of operation and behavior for the system isolation equipment, its dielectric properties, and the degree of protection provided by its enclosure where applicable;c) The information to be marked on or given with the system isolation equipment;d) The normal service, mounting and transport conditions of the system isolation equipment;e) The construction and performance of the system isolation equipment;f) The tests intended to verify that these conditions have been met, and the methods to be adopted for these tests.