测量、控制和试验室用电气设备的安全性要求.第2-032部分:电气测量和试验用手持和用手控制电流感应器的详细要求

[中文适用范围]： 范围和对象 第 1 部分的本条款适用，但以下情况除外： 范围内包含的设备 替换：用以下内容替换现有文本： IEC 61010 的本部分规定了下述手持式和手动电流传感器的安全要求。这些电流传感器用于测量、检测或注入电流或指示电路上的电流波形，而无需物理地打开被测量电路的电流路径。它们可能是独立的电流传感器或其他设备的附件或组合设备的部件（见图 101）。其中包括属于电气测试和测量设备@实验室设备@或过程控制设备一部分的测量电路。设备中这些电流传感器和电路的存在需要电流传感器@电路和操作员之间的附加保护装置。注 1：本部分还包括第 2-030 部分的要求。不属于本部分范围的测试和测量电路被视为涵盖 IEC 61010@ 第 1 部分或其他第 2 部分的要求，并且还需要满足这些其他部分的要求（第 1 部分和第 2 部分除外） 2-030。主要目的是测量带电电源电路上的电压的电流钳表和类似电流传感器也在第 2-033 部分的范围内。注 2：一些电流传感器也称为电流钳和电流探头。电流传感器在测试或测量之前或之后需要手动操作，但在测试或测量期间不一定需要手持。注 3：一些设计为便携式使用的电流传感器也可用于固定安装。涵盖以下类型的电流传感器： a) A 型：设计用于在非绝缘危险带电导体周围应用或从其移除的电流传感器。 A 型电流传感器定义了手持式或手动操作部件，可防止被测导体受到电击，并且还可防止夹紧期间电线和母线之间发生短路。 b) B 型：电流传感器，具有夹紧期间防止电线或母线之间短路的保护，但没有定义在夹紧期间提供防电击保护的手持或手动操作部件。需要额外的保护措施来避免危险带电导体触电，这些带电导体在使用或拆卸电流传感器期间无法断电。示例 1 柔性电流传感器。 c) C 型：电流传感器，在夹紧过程中没有电线或母线之间的短路保护。 C 型电流传感器仅在断电时才适用于非绝缘危险带电导体或非有限能量电路导体或从其上移除。示例2 分体芯换能器。 d) D 型：设计用于在绝缘导体或有限能量电路导体周围应用或从其上移除的电流传感器。 D 型电流传感器在夹紧过程中不需要短路保护，并且没有定义的手持或手动操作部件来提供针对被测导体电击的保护。示例3 用于示波器和漏地电流检测器的电流探头。注 4：所有电流传感器也可以在绝缘导体周围使用。在这种情况下，导体的绝缘将危险限制在可接受的水平。 [外文原描述]： IEC 61010-2-032:2012 specifies safety requirements for HAND-HELD and hand-manipulated current sensors described below. These current sensors are for measuring, detecting or injecting current, or indicating current waveforms on circuits without physically opening the current path of the circuit being measured. They may be stand-alone current sensors or accessories to other equipment or parts of combined equipment (see Figure 101). These include measurement circuits which are part of electrical test and measurement equipment, laboratory equipment, or process control equipment. The existence of these current sensors and circuits in equipment requires additional protective means between the current sensor, the circuit and an OPERATOR. This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) A new Type D current sensor has been defined. b) The terminology for MEASUREMENT CATEGORY I has changed. In this Part 2-032, it is termed "not RATED for measurements within MEASUREMENT CATEGORIES II, III, or IV". c) Requirements for markings of measuring circuit TERMINALS and JAWS have been modified. d) CLEARANCES and CREEPAGE DISTANCES have been added for unmated measuring circuit TERMINALS. e) Requirements have been added for specialized measuring circuit TERMINALS. f) The pull test for endcaps of flexible current sensors has been revised. g) Requirements for output circuit leads have been revised. h) Requirements have been added for temperature limits and resistance to heat to prevent thermal HAZARDS from eddy currents and high currents. i) Requirements for circuits or components used as TRANSIENT OVERVOLTAGE limiting devices have been revised. j) Requirements have been added for low battery indication. k) Requirements have been revised and added pertaining to REASONABLY FORESEEABLE MISUSE of measuring circuits, including usage of the current sensor in a manner that might cause arc flash. l) Requirements for MAINS voltage measuring circuits have been added. m) Requirements to prevent HAZARDs from short-circuits have been revised and located in a new Clause 102. n) ROUTINE TESTS have been modified. o) Insulation requirements for measuring circuits have been primarily located in Annex K. p) Annex AA has been added to describe the characteristics of MEASUREMENT CATEGORIES. q) Annex BB has been added to describe HAZARDS that may be encountered when using measuring circuits. This publication is to be read in conjunction with IEC 61010-1:2010 .