测量用电气设备的安全要求，控制和实验室使用-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TUL 61010-2-032（IEC 61010-2-032:2012）1范围和目标第1部分的本条款适用，但以下情况除外:1.1.1范围内的设备替换:用以下内容替换现有文本:IEC 61010的本部分规定了安全性手持式和手动电流传感器的要求如下所述。 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，而无需实际打开被测电路的电流路径。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零件（见图101）。这些包括作为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。如果设备中存在这些电流传感器和电路，则需要在电流传感器、电路和操作员之间采取额外的保护措施。 注1:本部分还包括第2-030部分的要求。不在本部分范围内的测试和测量电路被视为符合IEC 61010第1部分或其他第2s部分的要求，并且除第2-030部分外，还需要满足这些其他部分的要求。电流钳式电流表和类似的电流传感器主要用于测量带电电源电路上的电压，也在第2部分的范围内- 033.注2一些电流传感器也称为电流钳和电流探针。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3:一些设计用于便携式的电流传感器也可用于固定安装。包括以下类型的电流传感器:a）a型:设计用于未绝缘危险带电导体周围或从其上移除的电流传感器。 A型电流传感器定义了手持式或手动部件，可防止被测导体电击，并在夹紧过程中防止电线和母线之间短路。b） b型:电流传感器，在夹紧过程中防止电线或母线之间短路，但没有规定的手持式或手动操作部件，在夹紧过程中防止触电。必须采取额外的保护措施，以避免危险带电导体的电击- 在应用或拆卸电流传感器时会断电。示例1柔性电流传感器。c） c型:一种电流传感器，在夹紧过程中没有防止电线或母线之间短路的保护。C型电流传感器仅在断电时，才适用于未绝缘危险带电导体或非限能电路导体，或从中移除。示例2分芯换能器。d） d型:一种电流传感器，设计用于绝缘导体周围或从绝缘导体或有限导体上移除- 能量电路导体。D型电流传感器在夹紧过程中不需要短路保护，并且没有规定的手持式或手动部件，可以防止被测导体电击。示例3示波器和接地泄漏电流检测器的电流探针。注4:所有电流传感器也可用于绝缘导线周围。在这种情况下，导线的绝缘将危险限制在可接受的水平。 键1钳口端2 JAW3测量电路端子1。1.1图101——电流传感器及其零件示例1。2.1范围中包含的方面补充:在子条款末尾添加以下两个新段落:第101条给出了防止因测量电路的正常使用和可合理预见的误用而产生危险的要求。第102条给出了防止电弧闪光和短路危险的要求。

Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use - Part 2-032: Particular Requirements for Hand-Held and Hand-Manipulated Current Sensors for Electrical Test and MeasurementUL 61010-2-032 (IEC 61010-2-032:2012)1 Scope and objectThis clause of Part 1 is applicable except as follows:1.1.1 Equipment included in scopeReplacement:Replace the existing text with the following:This part of IEC 61010 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.NOTE 1 This part includes also the requirements of Part 2-030. Testing and measuring circuits that are not within the scope of this part are considered to be covered by the requirements of Part 1 or other parts 2s of IEC 61010, and then will also need to meet the requirements of these other parts with the exception of Part 2-030. Current clamp meters and similar currents sensors that have a primary purpose of measuring voltage on a live MAINS CIRCUIT are also within the scope of Part 2-033.NOTE 2 Some current sensors are also known as current clamps and current probes.Current sensors require hand manipulation before or after a test or measurement, but do not necessarily need to be HAND-HELD during the test or measurement.NOTE 3 Some current sensors designed for portable use can also be used for fixed installations.The following types of current sensors are covered:a) Type A: a current sensor designed to be applied around or removed from UNINSULATED HAZARDOUS LIVE conductors. Type A current sensors have defined HAND-HELD or hand-anipulated parts providing protection against electric shock from the conductor being measured, and also have protection against short-circuits between wires and busbars during clamping.b) Type B: a current sensor which has protection against short-circuits between wires or busbars during clamping but without defined HAND-HELD or hand-manipulated parts which provide protection against electric shock during clamping. Additional protective means are necessary to avoid electric shock from HAZARDOUS LIVE conductors which cannot be de-nergised during application or removal of the current sensor.EXAMPLE 1 Flexible current sensors.c) Type C: a current sensor without protection against short-circuits between wires or busbars during clamping. Type C current sensors are intended to be applied to or removed from UNINSULATED HAZARDOUS LIVE conductors or from non-limited-energy circuit conductors only when they are de-energised.EXAMPLE 2 Split-core transducers.d) Type D: a current sensor designed to be applied around or removed from insulated conductors or from limited-energy circuit conductors.A Type D current sensor does not need protection against short-circuits during clamping and has no defined HAND-HELD or hand-manipulated parts providing protection against electric shock from the conductor being measured.EXAMPLE 3 Current probes for oscilloscopes and earth leakage current detectors.NOTE 4 All current sensors can also be used around insulated conductors. In this case, HAZARDS are limited to acceptable levels by the insulation of the conductors.Key1 JAW END(S)2 JAW3 measuring circuit TERMINALS1.1.1 Figure 101 - Examples of current sensors and their parts1.2.1 Aspects included in scopeAddition:Add the following two new paragraphs at the end of the subclause:Requirements for protection against HAZARDS resulting from NORMAL USE and REASONABLY FORESEEABLE MISUSE of measuring circuits are given in Clause 101.Requirements for prevention of HAZARD from arc flash and short-circuits are given in Clause 102.