测量、控制和实验室用电气设备的安全要求第2-032部分:电气试验和测量用手持式和手动电流传感器的特殊要求 勘误表

[中文适用范围]： 本部分IEC 61010规定了以下描述的便携式和手动操作的电流传感器的安全要求。这些电流传感器用于在不物理打开被测电路电流路径的情况下测量、检测或注入电流，或指示电路上电流波形。它们可以是独立的电流传感器，也可以是其他设备或组合设备的一部分（见图101）。这些包括电气测试和测量设备、实验室设备或过程控制设备中作为一部分的测量电路。这些电流传感器和电路需要电流传感器、电路和操作人员之间的额外保护手段。电流传感器在测试或测量之前和/或期间由人手操作，但不一定需要在测试或测量过程中手持。用作固定设备的电流传感器不在本文件范围内。涵盖的电流传感器类型包括：a) A型：设计用于应用于或从带电裸导体上取下的电流传感器。A型电流传感器具有定义的手持或手动操作部件，提供防止被测导体电击的保护，并在夹紧期间提供防止导线之间和母线之间短路的保护；b) B型：在夹紧期间提供防止导线或母线之间短路的保护，但没有定义的手持或手动操作部件提供夹紧期间防止电击的保护的电流传感器。需要额外的保护手段以避免在应用或取下电流传感器时无法断电的带电导体造成的电击；c) C型：在夹紧期间不提供防止导线或母线之间短路保护的电流传感器。C型电流传感器仅应在带电的带电裸导体或有限能量电路导线上断电时应用或取下；d) D型：设计用于应用于或从绝缘导体或有限能量电路导线上取下的电流传感器。所有电流传感器也可与绝缘导体一起使用。在这种情况下，危险水平通过导体的绝缘限制在可接受的水平。 [外文原描述]： IEC 61010-2-032:2019 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 can 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. These current sensors and circuits need additional protective means between the current sensor, the circuit and an operator. This fourth edition cancels and replaces the third edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - It has been indicated that current sensors used as fixed equipment are not within the scope of this document. - Fork-style current sensors have been added. - Requirements from Part 2-033 applicable to clamp multimeters that have a primary purpose of measuring voltage on live mains have been included in the new normative Annex EE. - Clearances and creepage distances for measuring circuit terminals exceeding 1 000 V a.c. or 1 414 V d.c. and for wet locations have been specified. - Reduced creepage distances are allowed to be according to material group I for all insulating materials. - Requirements for input/output circuits of Type A, Type B and Type C current sensors have been detailed in 6.9.102. - Requirements for output circuit leads have been modified. - The Jaw impact test has been limited to the front of the jaws. - The abrasion test for cords of flexible current sensors has been removed and replaced by a pressure test at high temperature. - The voltage source for testing overvoltage limiting components or circuits may be limited to 400 V. - Reference to IEC 61010-031 for probe assemblies has been added. - Requirements for the prevention of transient overvoltages for mains voltage measuring circuits have been added. - Requirements for measuring circuits from 1 000 V to 3 000 V have been added. - An informative Annex CC about the dimensions of banana terminals has been added. - A flowchart for insulation according to the type of circuit has been added in a new Annex DD. The contents of the corrigendum of February 2020 have been included in this copy.