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This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 22794-2008 Type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses (Type B RCCBs and Type B RCBOs). The following main technical changes have been made with respect to GB/T 22794-2008. ——the foreword is modified; ——the scope is modified to cover Type F RCDs; ——the definition of Type B residual current device is added in 3.2; ——the classification according to behaviour in presence of d.c. components is added in 4.1; ——the characteristics of Type F residual current device in 5.1 are added; ——the characteristics of Type B residual current device are added in 5.2; ——the marking for Type F RCDs is added in 6.1; ——the marking for Type B RCDs is modified in 6.2; ——the conditions for Type F and Type B RCDs are added in 8.1; ——the behaviour of three- and four- pole Type B RCDs powered on two poles only is added in 8.2.1.7; ——the behaviour of RCDs in the case of surge residual currents is add in 8.3.1; Behaviour of RCDs in the case of inrush residual currents is add in 8.3.2; Behaviour in case of residual pulsating direct currents in presence of a standing smooth direct current of 10 mA is added in 8.3.3; ——the tests for Type F and Type B RCDs are added in 9.1; ——the verification of the correct operation for three- and four-pole Type B RCDs powered on two poles only are added in 9.2.3; ——“Figure 1 Example of a test circuit for the verification of correct operation in case of residual sinusoidal alternating currents composed of multi-frequency components resulting from single-phase supplied speed motor control equipment” is added; ——“Figure 2 Test circuit for the verification of the behaviour of the RCD in case of inrush residual currents” is added; ——Annex A “Number of samples to be submitted and test sequences to be applied for verification of conformity for type F RCCBs” and Annex B “Number of samples to be submitted and test sequences to be applied for verification of conformity for Type F RCBOs”; ——Annex C “Number of samples to be submitted and test sequences to be applied for verification of conformity for Type B RCCBs” is modified; ——Annex C “Routine tests for Type F and Type B RCDs” is modified; This standard, by translation, is identical to IEC 62423:2009 Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses. The Chinese documents identical to the normative international documents given in this standard are as follows: ——GB/T 13870.1-2008 Effects of current on human beings and livestock - Part 1: General aspects (IEC/TS 60479-1:2005, IDT) ——GB/T 13870.2-2016 Effects of current on human beings and livestock - Part 2:Special aspects (IEC/TS 60479-2: 2007, IDT) ——GB/T 16916.1-2014 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB) - Part 1: General rules (IEC 61008-1: 2012, MOD); ——GB/T 16917.1-2014 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1:General rules (IEC 61009-1: 2012, MOD) This standard was proposed by the China Electrical Equipment Industrial Association This standard is under the jurisdiction of SAC/TC 189 National Technical Committee on Low-voltage Apparatus of Standardization Administration of China. The previous editions of this standard are as follows: ——GB 22794-2008, GB/T 22794-2008. Introduction RCCBs and RCBOs designed according to IEC 61008-1 and IEC 61009-1 are suitable in most of the applications. IEC 61008-1 and 61009-1 provide appropriate requirements and tests for general use in household and similar uses. However, the use of new electronic technology in equipment may result in particular residual currents not covered in IEC 61008-1 or IEC 61009-1. This standard covers specific applications where additional requirements and testing are needed. This standard includes definitions, additional requirements and tests for Type F and Type BRCCBs and/or RCBOs to cover particular situations. The tests shall first be applied according to IEC 61008-1 for Type F or Type B RCCBs and according to IEC 61009-1 for Type F or Type B RCBOs. After completion of the tests given either in IEC 61008-1 or IEC 61009-1 the additional tests given in this standard shall be applied for RCCBs and RCBOs in order to show conformity to this standard (see Annex A, Annex B for Type F or Annex C, Annex D for Type B respectively). The number of samples to be submitted and test sequences to be applied for verification of conformity for Type F RCCBs and Type F RCBOs are given in Annex A or Annex B. The number of samples to be submitted and test sequences to be applied for verification of conformity for Type B RCCBs and Type B RCBOs are given in Annex C or Annex D. This standard introduces Type F RCDs (F for Frequency) with rated frequency 50 Hz or 60 Hz intended for protection of circuits with frequency inverters supplied between phase and neutral or phase and earthed middle conductor taking into account the necessary features for these particular situations in addition to the cases covered by type A RCDs. In case of a frequency inverter, e.g. used for motor speed control, supplied between phase and neutral, a composite residual current including the power frequency, the motor frequency and the chopper clock frequency of the frequency inverter may occur in addition to alternating or pulsating d.c. residual currents. Type F RCDs cannot be used where electronic equipment with double bridge rectifiers supplied from two phases is found or if a smooth d.c. residual current can occur. This standard introduces Type B RCDs to be used in case of residual pulsating rectified direct current which results from one or more phases, and smooth d.c. residual current in addition to the cases covered by Type F RCDs. For these applications, two, three or four pole Type B RCDs can be used. Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses 1 Scope The scope of IEC 61008-1 and IEC 61009-1 applies with the following additions. This standard specifies requirements and tests for Type F and Type B RCDs (Residual Current Devices). Requirements and tests given in this standard are in addition to the requirements of Type A residual current devices. This standard can only be used together with IEC 61008-1 and IEC 61009-1. Type F RCCBs (Residual Current Circuit Breaker) and Type F RCBOs (Residual Current Circuit Breaker with Overcurrent Protection) with rated frequency 50 Hz or 60 Hz are intended for installations when frequency inverters are supplied between phase and neutral or phase and earthed middle conductor and are able to provide protection in case of alternating residual sinusoidal at the rated frequency, pulsating direct residual currents and composite residual currents that may occur. Type B RCCBs and Type B RCBOs are able to provide protection in case of alternating residual sinusoidal currents up to 1000 Hz, pulsating direct residual currents, composite residual currents and smooth direct residual currents. RCDs according to this standard are not intended to be used in d.c. supply systems. Further requirements and tests for products to be used in situations where the residual current was not intended to be covered in IEC 61008-1 or IEC 61009-1 are under consideration. For the purpose of manufacturer’s declaration or verification of conformity, type tests should be carried out in test sequences in compliance with Annex A, Annex B, Annex C or Annex D of this standard. The complete test sequence for type test of Type F RCCBs and Type F RCBOs is given in Tables A.1 and B.1 respectively. The complete test sequence for type test of Type B RCCBs and Type B RCBOs is given in Tables C.1 or D.1 respectively. Note 1: Throughout the document, the term RCD refers to RCCBs and RCBOs. Note 2: Requirements for 1 pole with solid neutral are under consideration. Note 3: Even if the surge voltage will cause flashover and subsequent current, and the inrush residual current with the maximum duration of 10 ms will be generated when the electronic equipment or EMC filter is turned on, the F-type and B-type RCDs still have high resistance to unwanted tripping. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC/TS 60479-1 Effects of current on human beings and livestock - Part 1: General aspects IEC/TS 60479-2 Effects of current on human beings and livestock - Part 2: Special aspects IEC 61008-1: 1996 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part 1: General rules Amendment 1: 2002 Amendment 2: 2006 IEC 61009-1: 1996 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1: General rules Amendment 1: 2002 Amendment 2: 2006 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 smooth direct current a direct current which is ripple free Note: When the ripple coefficient is less than 10%, it can be considered that the current has no ripple. ) 3.2 type F residual current device residual current device for which tripping is ensured as for Type A according to IEC 61008-1 or IEC 61009-1 and in addition: ——for composite residual currents, whether suddenly applied or slowly rising intended for circuit supplied between phase and neutral or phase and earthed middle conductor ——for residual pulsating direct currents superimposed on smooth direct current Note: composite residual current is the residual current composed of more than one obvious sine wave frequency. 3.3 type B residual current device residual current device for which tripping is ensured as for Type F according to this standard and in addition: ——for residual sinusoidal alternating currents up to 1000 Hz, ——for residual alternating currents superimposed on a smooth direct current ——for residual pulsating direct currents superimposed on a smooth direct current ——for residual pulsating rectified direct current which results from two or more phases ——for residual smooth direct currents whether suddenly applied or slowly increased independent of polarity 4 Classification According to IEC 61008-1 or IEC 61009-1, as applicable with the following addition: 4.1 According to behaviour in presence of d.c. components ——Type F RCDs ——Type B RCDs 5 Characteristics 5.1 Type F residual current device Residual current device for which tripping is ensured as for Type A according to IEC 61008-1 or IEC 61009-1, as applicable, and in addition, ——for composite residual currents, whether suddenly applied or slowly rising intended for circuit supplied between phase and neutral or phase and earthed middle conductor (see 8.1); ——and for residual pulsating direct currents superimposed on smooth direct current of 10mA (see 8.3.3). The above specified residual currents may be suddenly applied or slowly rising. 5.2 Type B residual current device 5.2.1 General Residual current device for which tripping is ensured as for Type F and in addition ——for residual sinusoidal alternating currents up to 1000 Hz (see 8.2.1.1), ——for residual alternating currents superimposed on a smooth direct current of 0.4 times the rated residual current (IΔn) or 10 mA, whichever is the highest value (see 8.2.1.2), ——for residual pulsating direct currents superimposed on a smooth direct current of 0.4 times the rated residual current (IΔn) or 10mA, whichever is the highest value (see 8.2.1.3), ——for residual direct currents which may result from rectifying circuits, i.e., ——two-pulse bridge connection line to line for 2-, 3- and 4-pole devices (see 8.2.1.4), ——three-pulse star connection or six-pulse bridge connection for 3- and 4-pole devices (see 8.2.1.5), ——for residual smooth direct currents (see 8.2.1.6). The above specified residual currents may be suddenly applied or slowly increased independent of polarity. 5.2.2 Standard values of break time and non-actuating time for residual direct currents which result from rectifying circuits and for residual smooth direct current See Table 1 for Type B RCDs – standard values of break time and non-actuating time for residual direct currents which result from rectifying circuits and for residual smooth direct current Table 1 Type B RCDs – Standard values of break time and non-actuating time for residual direct currents which result from rectifying circuits and for residual smooth direct current Type In A I△n A Standard values of break time and non-actuating time at a residual ) current (IΔ) equal to s 2I△n 4I△n 10I△n 5A, 10A, 20A, 50A, 100A, 200Aa General Any value Any value 0.3 0.15 0.04 0.04 Maximum break times S ≥25 >0.030 0.5 0.2 0.15 0.15 Maximum break times 0.13 0.06 0.05 0.04 Minimum non-actuating times For Type B RCBOs any value exceeding the lower limit of the overcurrent instantaneous tripping range are not tested. a The tests are only made during the verification of the correct operation as mentioned in 9.2.1.5 b) according to Figure 6a), and 9.2.1 .6 b) according to Figure 6b). 5.2.3 Values of tripping current according to frequencies which differ from the rated frequency 50/60 Hz See Table 2 for Type B RCDs – residual non-operating and operating current according to frequencies which differ from the rated frequency 50/60 Hz Table 2 Type B RCDs – Residual non-operating and operating current according to frequencies which differ from the rated frequency 50/60 Hz Frequency Hz Residual non-operating current Residual operating current 150 0.5I△n 2.4I△na 400 0.5I△n 6I△na 1000 I△n 14I△na, b Note 1: The definitions of “residual non-operating current and of “operating currents” are those of IEC 61 008-1 and IEC 61 009-1 Note 2: The waveform for the given frequencies is sinusoidal. Note 3: The maximum permissible earthing impedance at a frequency fx depends on the upper limit of the operating currents of the RCD at that frequency. Note 4: The relationship between the frequency of the acceptable touch voltages and the dissipated power in the human body are under consideration. Until final values are fixed the maximum allowed touch voltage of 50 V for 50/60 Hz is recommended. a The values correspond to the threshold of ventricular fibrillation according to IEC/TS 60479-1 in combination with the frequency factor for ventricular fibrillation according to IEC/TS 60479-2. b IEC 60479 series gives no factors for frequencies above 1 kHz. 6 Marking and other product information 6.1 Marking for Type F RCDs Add the following symbol adjacent to the symbol for Type A, e.g., ; alternatively the following symbol may be used . 6.2 Marking for Type B RCDs Add the following symbol adjacent to the symbol for Type F, e.g.: . alternatively the following symbol may be used: . Note: Where a 4-pole RCBO is used for single phase supply the device should be connected and installed according to the manufacturer’s instructions. 7 Standard conditions for operation in service and for installation According to IEC 61008-1 or IEC 61009-1, as applicable. 8 Conditions for construction and operation 8.1 Conditions for Type F and Type B RCDs Requirements for operation in case of sinusoidal residual currents comprising of multi-frequency components resulting from control equipment supplied from single phase: a) Type F and Type B RCDs shall operate in response to a steady increase of composite residual current within the limits given in Table 4. Compliance is checked by the tests of 9.1.2. b) Type F and Type B RCDs shall operate in response to a sudden appearance of the residual operating current. For residual currents greater than 5 times the upper limit of Table 4 the maximum break time of RCDs of the general type shall be 0.04 s, and, for RCDs Type S, the minimum non-actuating time shall be equal to or greater than 0.05 s and the maximum break time shall not exceed 0.15 s. Compliance is checked by the tests of 9.1.3. 8.2 Conditions for Type B RCDs 8.2.1 Operation in response to the type of residual current 8.2.1.1 Residual sinusoidal alternating currents up to 1000 Hz Type B RCDs shall comply with the values given in Table 2 of this standard. Compliance is checked by the tests of 9.2.1.2a). Type B RCDs shall operate in response to a sudden appearance of the residual operating current given in Table 2. The maximum break time of RCDs of the general type shall be 0.3 s, and for RCDs type S the minimum non-actuating time shall be equal to or not lower than 0.13 s and the maximum break time shall not exceed 0.5 s. Foreword I Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Characteristics 6 Marking and other product information 7 Standard conditions for operation in service and for installation 8 Conditions for construction and operation 9 Tests Annex A (Normative) Number of samples to be submitted and test sequences to be applied for verification of conformity for type F RCCB Annex B (Normative) Number of samples to be submitted and test sequences to be applied for verification of conformity for Type F RCBO Annex C (Normative) Number of samples to be submitted and test sequences to be applied for verification of conformity for Type B RCCB Annex D (Normative) Number of samples to be submitted and test sequences to be applied for verification of conformity for Type B RCBO Annex E (Normative) Routine tests for Type F and Type B RCD Bibliography 家用和类似用途的不带和带过电流保护的F型和B型剩余电流动作断路器 1 范围 IEC 61008-1和IEC 61009-1的范围适用,补充下列内容。 本标准规定了F型和B型RCD(剩余电流装置)的技术要求和试验方法。本标准规定的技术要求和试验方法是对A型剩余电流装置技术要求的补充。本标准只能与IEC 61008-1或IEC 61009-1一起使用,。 额定频率为50 Hz,60 Hz或者50/60 Hz的F型RCCB(不带过电流保护的剩余电流断路器)和F型RCBO(带过电流保护的剩余电流断路器),用于变频器由相线和中性线或者相线和接地的中间导体供电的电气装置,能对额定频率交流正弦剩余电流、脉动直流剩余电流和可能产生的复合剩余电流提供保护。 B型RCCB和B型RCBO在1 000Hz及以下的正弦交流剩余电流、脉动直流剩余电流、复合剩余电流以及平滑直流剩余电流均能提供保护。 符合本标准的RCD不能在直流电源系统中使用。 其他没有被IEC 61008-1或IEC61009-1覆盖的剩余电流场合使用的产品的技术要求和试验方法正在考虑中。 用于制造商声明或符合性验证的型式试验宜按本标准附录A、附录B、附录C或附录D的试验程序进行。 F型RCCB和F型RCBO型式试验的全部试验程序分别在表A.1或表B.1中给出;B型RCCB和B型RCBO型式试验的全部试验程序分别在表C.1或表D.1中给出。 注1:在整个标准中,术语“RCD”指RCCB和RCBO。 注2:带不可开闭中性极的一极产品的技术要求正在考虑中。 注3:即使浪涌电压会引起闪络和后续的电流,且当电子设备或EMC滤波器接通时会产生最大持续时间为10 ms的涌入剩余电流,F型和B型RCD仍具有高耐误脱扣特性。 2 规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。 IEC/TS 60479-1 电流对人和家畜的效应 第1部分:通用部分(Effects of current on human beings and livestock—Part 1 :General aspects) IEC/TS 60479-2 电流对人和家畜的效应 第2部分:特殊部分(Effects of current on human beings and livestock—Part 2:Special aspects) IEC 61008-1:1996 家用和类似用途的不带过电流保护的剩余电流动作断路器(RCCB)第1部分:一般规则[Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses(RCCBs)—Part 1:General rules] 第1号修改单:2002(Amendment 1) 第2号修改单:2006(Amendment 2) IEC 61009-1:1996 家用和类似用途的带过电流保护的剩余电流动作断路器(RCBO) 第1部分:一般规则[Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs)-Part l:General rules] 第1号修改单:2002(Amendment 1) 第2号修改单:2006(Amendment 2) 3 术语和定义 下列术语和定义适用于本文件。 3.1 平滑直流电流 smooth direct current 没有波纹的直流电流。 注:当波纹系数小于10%时,可以认为电流没有波纹。1) 1) 采标注:IEC 62423原文中没有该条注释,采标时根据IEC/TR 60755:2008的相应术语增加了注释,使定义更明确。 3.2 F型剩余电流装置 type F residual current device 如符合IEC 61008-1或IEC 61009-1中的A型那样确保脱扣(如适用),此外还能在下列电流下确保脱扣的剩余电流装置: ——由相线和中性线或者相线和接地的中间导体供电的电路中突然施加或缓慢上升的复合剩余电流; ——脉动直流剩余电流叠加平滑直流电流。 注:复合剩余电流是由一个以上明显正弦波频率组成的剩余电流。 3.3 B型剩余电流装置 type B residual current device 如本标准的F型那样确保脱扣,此外还能在下列电流下确保脱扣的剩余电流装置: ——1 000Hz及以下的正弦交流剩余电流; ——交流剩余电流叠加平滑直流剩余电流; ——脉动直流剩余电流叠加平滑直流剩余电流; ——两相或多相整流电路产生的脉动直流剩余电流; ——平滑直流剩余电流。 而与极性及剩余电流突然出现或缓慢上升无关。 4 分类 按IEC 61008-1或IEC 61009-1(适用时),补充下列: 4.1 按出现直流分量时的工作状况分 ——F型RCD; ——B型RCD。 5 特性 5.1 F型剩余电流装置 如符合IEC 61008-1或IEC 61009-1中的A型那样确保脱扣(如适用),此外还能在下列电流下确保脱扣的剩余电流装置: ——由相线和中性线或者相线和接地的中间导体供电的电路中突然施加或缓慢上升的复合剩余电流(见8.1); ——脉动直流剩余电流叠加10 mA平滑直流剩余电流(见8.3.3)。 上述规定的剩余电流可能突然出现或者缓慢上升。 5.2 B型剩余电流装置 5.2.1 概述 如F型那样确保脱扣,此外还能在下列电流下确保脱扣的剩余电流装置: ——1 000 Hz及以下的正弦交流剩余电流(见8.2.1.1); ——在交流剩余电流上叠加0.4倍额定剩余动作电流(I△n)的平滑直流剩余电流或10 mA的平滑直流剩余电流(两者取较大值)(见8.2.1.2); ——在脉动直流剩余电流上叠加0.4倍额定剩余动作电流(I△n)的平滑直流剩余电流或10 mA的平滑直流剩余电流(两者取较大值)(见8.2.1.3); ——可由下列整流电路产生的直流剩余电流,即: ——二极、三极和四极剩余电流装置的连接至相与相的双脉冲桥式整流电路(见8.2.1.4); ——三极和四极剩余电流装置的三脉冲星形连接或六脉冲桥式连接的整流电路(见8.2.1.5)。 ——平滑直流剩余电流(见8.2.1.6)。 上述规定的剩余电流可突然施加或缓慢增加,与极性无关。 5.2.2 整流电路产生的脉动直流剩余电流及平滑直流剩余电流时的分断时间和不驱动时间标准值 整流电路产生的脉动直流剩余电流及平滑直流剩余电流时B型RCD的分断时间和不驱动时间标准值见表1。 表1 整流电路产生的脉动直流剩余电流及平滑直流剩余电流时B型RCD的分断时间和不驱动时间标准值 型式 In A I△n A 剩余电流2)(I△)等于下列值时分断时间和不驱动时间标准值s 2I△n 4I△n 10I△n 5A、10A、20A、50A、100A、200Aa 一般型 任何值 任何值 0.3 0.15 0.04 0.04 最大分断时间 S型 ≥25 >0.030 0.5 0.2 0.15 0.15 最大分断时间 0.13 0.06 0.05 0.04 最小不驱动时间 对B型RCBO,任何超过过电流瞬时脱扣范围下限的电流值不进行试验。 a仅在按图6a)、9.2.1.5b)和图6b)、9.2.1.6b)所述的验证正确动作时进行试验。 2) 采标注:IEC 62423原文中为“剩余动作电流”与“I△”不对应,采标时修正为“剩余电流”。 5.2.3 按频率(不同于额定频率50/60 Hz)的脱扣电流标准值 按频率(不同于额定频率50/60 Hz)B型RCD的剩余不动作电流和剩余动作电流见表2。 表2 按频率(不同于额定频率50/60 Hz)B型RCD的剩余不动作电流和剩余动作电流 频率 Hz 剩余不动作电流 剩余动作电流 150 0.5I△n 2.4I△na 400 0.5I△n 6I△na 1 000 I△n 14I△na,b 注1:“剩余不动作电流”和“剩余动作电流”的定义如IEC 61008-1和IEC 61009-1中所述。 注2:给定频率的波形是正弦波。 注3:在频率fx时的最大允许接地阻抗取决于在该频率时RCD动作电流的上限。 注4:允许接触电压的频率与人体中消耗功率之间的关系正在考虑中。在最终的电压确定前,推荐采用50/60 Hz时的最大容许接触电压50 V。 a 该电流值相应于按IEC/TS 60479-1并结合IEC/TS 60479-2的心室纤维性颤动频率系数得出的心室纤维性颤动阈值。 b IEC 60479系列标准没有给出超过1 000 Hz频率的系数。 6 标志和其他产品资料 6.1 F型RCD的标志 在A型符号的邻近增加下列符号: ,例如: ;也可采用下列符号: 。 6.2 B型RCD的标志 在F型符号的邻近增加下列符号: ,例如: 。 作为一种选择,也可采用下列符号: 。 注:当4极RCBO用于单相电源时,宜根据制造厂的说明接线和安装。 7 使用和安装的标准工作条件 按IEC 61008-1或IEC 61009-1(适用时)。 8 结构和操作要求 8.1 F型和B型RCD的要求 由单相供电的控制设备引起的包含多频分量的正弦剩余电流时的动作要求: a) 复合剩余电流稳定增加时,F型和B型RCD应在表4规定的限值内动作。 通过9.1.2的试验来检验是否符合要求。 b) 突然出现复合剩余动作电流时,F型和B型RCD应正确动作。 对于剩余电流大于表4中上限值的5倍时,一般型的最大分断时间应为0.04 s;对于S型,最小不驱动时间应大于或等于0.05 s并且最大分断时间应不超过0.15 s。 通过9.1.3的试验来检验是否符合要求。 8.2 B型RCD的其他要求 8.2.1 与剩余电流型式相应的动作 8.2.1.1 1 000Hz及以下的正弦交流剩余电流 B型RCD应符合表2规定的值。 通过9.2.1.2a)的试验来检验是否符合要求。 在突然出现表2规定的剩余动作电流时,B型RCD应动作。一般型RCD的最大分断时间应为0.3 s,S型RCD的最小不驱动时间应大于或等于0.13 s,并且最大分断时间应不超过0.5 s。 通过9.2.1.2b)的试验来检验是否符合要求。 8.2.1.2 交流剩余电流叠加平滑直流剩余电流 在额定频率的交流剩余电流上叠加0.4倍额定剩余动作电流(I△n)的平滑直流剩余电流或10 mA的平滑直流剩余电流(两者取较大值)时B型RCD应正确动作。 脱扣时的交流电流应小于或等于I△n。 通过9.2.1.3的试验来检验是否符合要求。 8.2.1.3 脉动直流剩余电流叠加平滑直流剩余电流 在脉动直流剩余电流上叠加0.4倍额定剩余动作电流(I△n)的平滑直流剩余电流或10 mA的平滑直流剩余电流(两者取较大值)时B型RCD应正确动作。 对于I△n>10 mA的RCD,脱扣电流不应大于1.4I△n;或对于I△n≤10 mA的RCD,脱扣电流不应大于2I△n。 注:由于是半波脉动直流电流,所以脱扣电流1.4I△n或2I△n(适用时)是有效值。 通过9.2.1.4的试验来检验是否符合要求。 8.2.1.4 两相供电的整流电路产生的脉动直流剩余电流 对整流电路产生的稳定增加的脉动直流剩余电流,B型RCD应在0.5I△n~2I△n的范围内动作。 通过9.2.1.5a)的试验来检验是否符合要求。 对整流电路产生的突然施加的脉动直流剩余电流,B型RCD应按表1规定的时间范围内动作。 通过9.2.1.5b)的试验来检验是否符合要求。 8.2.1.5 三相供电的整流电路产生的脉动直流剩余电流 对整流电路产生的稳定增加的脉动直流剩余电流,B型RCD应在0.5I△n~2I△n的范围内动作。 通过9.2.1.6a)的试验来检验是否符合要求。 对整流电路产生的突然施加的脉动直流剩余电流,B型RCD应按表1规定的时间范围内动作。 通过9.2.1.6b)的试验来检验是否符合要求。 8.2.1.6 平滑直流剩余电流 对稳定增加的平滑直流剩余电流,B型RCD应在0.5I△n~2I△n的范围内动作。 通过9.2.1.7.1a)和9.2.1.7.2的试验来检验是否符合要求。 对突然施加的平滑直流剩余电流,B型RCD应按表1规定的时间范围内动作。 通过9.2.1.7.1b)的试验来检验是否符合要求。 8.2.1.7 三极和四极B型RCD在仅对二极供电情况下的特性 三极和四极RCD在仅对二极供电的情况下应能正确动作。 通过9.2.3中B型RCD的试验来检验是否符合要求。 8.3 F型和B型RCD的特性 8.3.1 在浪涌剩余电流作用下RCD的性能 RCD对电气装置的电容负载流过的对地浪涌电流和设备闪络而流过的对地浪涌电流均应有足够的耐误脱扣能力。 通过9.1.5的试验来检验是否符合要求。 8.3.2 在涌入剩余电流作用下RCD的性能 RCD对由于接入电子设备或EMC滤波器产生的,持续时间最大不超过10 ms的涌入剩余电流应具有足够的耐受能力。 通过9.1.6的试验来检验是否符合要求 8.3.3 在脉动直流剩余电流叠加10 mA持续平滑直流剩余电流时的性能 RCD应在脉动直流剩余电流叠加10 mA持续平滑直流剩余电流时正确动作。 通过9.1.7的试验来检验F型是否符合要求。 通过9.2.1.4的试验来检验B型是否符合要求。 9 试验 9.1 F型和B型RCD的试验 9.1.1 概述 所有试验RCD应在额定频率下施加Un空载进行试验。除非另有规定,按图1进行试验。 9.1.2 验证在复合剩余电流稳定增加时正确动作 表3给出了用于校准的频率分量值以及稳定增加剩余电流时验证RCD正确动作的初始值I△。 表4给出了复合剩余电流的极限动作值。 试验频率允许误差在±2%。 表3 试验电流中不同频率的分量值和稳定增加剩余电流时验证正确动作的初始值(I△) 用于校准的试验电流不同频率的分量值(RMS) 复合的初始电流值(RMS) I额定频率 I1 kHz I F电动机(10 Hz) I△ 0.138I△n 0.138I△n 0.035I△n 0.2I△n 注1:I△n值为RCD额定频率下的额定剩余动作电流。 注2:对本试验而言,10 Hz和1 kHz的值分别代表最严酷条件下的输出和时钟频率。 为了验证复合电流出现时RCD的动作值,表3中给出的初始复合剩余电流值应按线性比例增加。RCD应在表4限值内脱扣。 无论任何情况下,从初始值到动作值不同频率的比率应保持不变。 表4 复合剩余电流的动作电流范围 动作电流值(RMS) 下限值 上限值 0.5I△n 1.4I△n 注1:I△n值为RCD额定频率下的额定剩余动作电流。 注2:表3给出了动作电流各频率分量的比率。 试验开关S1、S2和RCD处于闭合位置,剩余电流从小于或等于表3给出的初始复合值开始稳定增加,在30 s内达到表4规定的剩余动作电流上限值。 任选一极进行试验,试验重复3次,脱扣电流值应在表4规定的限值内。 9.1.3 验证突然施加复合剩余电流时正确动作 试验验证RCD的分断时间,试验电流校准为表4中上限值的5倍。 试验开关S1和RCD处于闭合位置,然后闭合试验开关S2突然产生剩余电流。 测量3次分断时间。 对于一般型的RCD,分断时间应该小于0.04 s。 对于S型RCD,分断时间应小于0.15 s。 S型RCD应进行附加试验,闭合试验开关S2突然产生剩余电流,持续时间为最小不驱动时间0.05 s,允许误差为 %。 施加3次剩余电流,每次施加应与前一次至少间隔1 min。试验过程中,RCD不应脱扣。 9.1.4 验证四极F型RCD在仅对两极供电情况下出现剩余电流时的正确动作 应按9.1.2对四极RCD进行试验,但仅对中性线和随机选取的一根相线接线端子以额定频率供电,空载。 9.1.5 验证在3 000A浪涌电流下的性能(8/20μs浪涌电流试验) 9.1.5.1 试验条件 试验条件按IEC 61008-1:1996中的9.19.2.1或IEC 61009-1:1996中的9.19.2.1,如适用。 9.1.5.2 试验结果 在试验过程中,RCD不应脱扣。 在浪涌电流试验后,按IEC 61008-1:1996中的9.9.2.3的试验验证RCCB的正确动作;或按IEC 61009-1:1996中的9.9.1.2c)的试验验证RCBO的正确动作,仅在I△n下进行试验,试验时测量分断时间。 9.1.6 验证在涌入剩余电流下的性能 按图2进行试验,所有开关和RCD处于闭合位置。 电流源(G)可以产生单个50 Hz或者60 Hz 的正弦半波脉冲。 任选一极施加一个峰值电流为10I△n的脉冲。测量6次,正向3次,负向3次。每次试验后变换极性。两个脉冲之间时间间隔应为30 s。 试验过程中,RCD不应脱扣。 9.1.7 验证脉动直流剩余电流叠加10 mA平滑直流电流时的正确动作 按照IEC 61008-1:1996中的9.21.1.4或IEC 61009-1:1996中的9.21.1.4对RCD进行试验,但是平滑直流剩余电流由10 mA代替6 mA。 注:对于B型RCD,本试验按9.2.1.4进行。 9.2 B型RCD其他要求的试验 9.2.1 在基准温度(20±5)℃下验证动作特性 9.2.1.1 概述 RCD按正常使用安装。 所有试验RCD应先在额定频率下施加0.85Un进行试验,然后施加1.1Un进行试验。除非另有规定,试验时不带负载。 RCD具有多个剩余动作电流整定值时,应对每个整定值试验。 9.2.1.2 在1 000Hz及以下的正弦交流剩余电流时验证正确动作 应按图3进行试验: a) 试验开关S1、S2以及RCD处于闭合位置,剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到表2规定的剩余动作电流值,测量脱扣电流。 任选一极在表2规定的每个频率进行试验,重复2次,脱扣电流值应符合表2的要求。 b) 第二组试验验证分断时间 试验电路调节至表2相应于1 000 Hz的剩余动作电流,试验开关S1和RCD处于闭合位置,然后闭合试验开关S2突然产生剩余电流。 任选一极测量2次分断时间。 对一般型RCD最大分断时间不应超过0.3 s;对S型RCD最小不驱动时间应大于或等于0.13 s并且最大分断时间不应超过0.5 s。 9.2.1.3 在交流剩余电流叠加平滑直流剩余电流时验证正确动作 应按图4进行试验。 试验开关S1、S2及RCD处于闭合位置,对随机选取的一-极施加平滑直流剩余电流并调节至0.4I△n或10 mA,两者取较大值。 注:在I△n为10 mA的B型RCD的特定情况下,使用5 mA的平滑直流值。 对另外一极施加额定频率的交流剩余电流,剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到I△n值,测量脱扣电流。 开关S3在位置Ⅰ和位置Ⅱ各进行2次试验。 交流脱扣电流应小于或等于I△n。 9.2.1.4 在脉动直流剩余电流叠加平滑直流剩余电流时验证正确动作 应按图5进行试验。 试验开关S1、S2及RCD处于闭合位置,对随机选取的一极施加平滑直流剩余电流并调节至0.4I△n或10 mA,两者取较大值。 任选的另外一极施加脉动直流剩余电流,电流滞后角α为0°,脉动直流剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到1.4I△n值(对I△n>10 mA的RCD)或2I△n值(对I△n≤10 mA的RCD),测量脱扣电流。 开关S3和S4在位置Ⅰ和位置Ⅱ对RCD各进行2次试验。 RCD应在脉动直流剩余电流分别达到不超过1.4I△n(对I△n>10 mA的RCD)或2I△n值(对I△n≤10 mA的RCD)前脱扣。 9.2.1.5 在两相供电的整流电路产生的直流剩余电流时验证正确动作 应按图6a)进行试验。 a) 验证脱扣性能 试验开关S1、S2以及RCD处于闭合位置,脉动直流剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到2I△n值,测量脱扣电流。 试验电路连接到RCD随机选取的两个电源端子。 开关S3在位置Ⅰ和位置Ⅱ RCD各进行2次试验。 RCD应在0.5I△n~2I△n范围内脱扣。 b) 第二组试验验证分断时间 试验电路依次调节至表1规定的每个电流值,试验开关S1和RCD处于闭合位置,然后闭合试验开关S2突然产生剩余电流。 RCD随机选取两个电源端子接线,对表1规定的任意3个剩余电流值,S3在位置Ⅰ和位置Ⅱ各测量2次分断时间。 分断时间应符合表1规定的值。 9.2.1.6 在三相供电的整流电路产生的直流剩余电流时验证正确动作 本试验不适用于二极B型RCD。 应按图6b)进行试验。 a) 验证脱扣性能 试验开关S1、S2以及RCD处于闭合位置,脉动直流剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到2I△n值,测量脱扣电流。 开关S3在位置Ⅰ和位置ⅡRCD各进行2次试验。 RCD应在0.5I△n~2I△n范围内脱扣。 b) 第二组试验验证分断时间 试验电路依次调节至表1规定的每个电流值,试验开关S1和RCD处于闭合位置,然后闭合试验开关S2突然产生剩余电流。 对2I△n和任意其他随机选取的表1规定的两个剩余电流值,S3在位置Ⅰ和位置Ⅱ各测量2次分断时间。 分断时间应符合表1规定的值。 9.2.1.7 在平滑直流剩余电流时验证正确动作 9.2.1.7.1 不带负载,在平滑直流剩余电流时验证正确动作 应按图7进行试验: a) 验证脱扣性能 试验开关S1、S2以及RCD处于闭合位置,平滑直流剩余电流从不大于0.2I△n的值开始稳定地增加,试图在30 s内达到2I△n值,测量脱扣电流。 如图7所示,对RCD随机选取的一极,开关S3在位置Ⅰ和位置Ⅱ RCD各进行2次试验。 RCD应在0.5I△n~2I△n范围内脱扣。 b) 第二组试验验证分断时间 试验电路依次调节至表1规定的每个剩余动作电流值(除了5 A、10 A、20 A、50 A、100 A和200 A以外),试验开关S1和RCD处于闭合位置,然后闭合试验开关S2突然产生剩余电流。 试验开关S3随机地在位置Ⅰ或位置Ⅱ。 对RCD任意选取的一极,在每个剩余动作电流各测量2次分断时间。 分断时间应符合表1规定的值。 9.2.1.7.2 带负载,在平滑直流剩余电流时验证正确动作 RCD如同正常使用通以额定电流负载以足够的时间,使其达到热稳定状态,重复9.2.1.7.1a)的试验。 注:图73)没有显示带额定电流的负载。 3) 采标注:IEC 62423原文中编辑错误。采标时修改,由“图7”代替“图5”。 9.2.2 在温度极限值下试验 RCD应在下列条件下依次进行9.2.1.5b).9.2.1.6b)和9.2.1.7.1b)规定的试验: a) 周围温度:-5℃,空载; b) 周围温度:+40℃,试验前RCD在任何合适电压下通以额定电流负载直至达到热稳态条件。 实际上,当每小时温升变化不超过1K时,即达到了热稳态条件。 当RCD具有多个剩余动作电流整定值时,对每个整定值进行试验。 注:预热可在降低电压下进行,但辅助电路宜与其正常工作电压连接(尤其对与电源电压有关的元件)。 9.2.3 验证三极和四极B型RCD仅由两极供电时的正确动作 应按9.2.1.2和9.2.1.7.1进行试验,但对于四极RCD仅对中性线和随机选取的一根相线接线端子以额定频率、空载供电;或者对于三极RCD随机选取两根相线接线端子以额定频率、空载供电。 9.2.4 试验程序后验证RCD 通以2.5I△n平滑直流的试验电流,RCD应脱扣。 仅进行一次试验,不测分断时间。 说明: S——电源; S1——多极开关(可选); S2——单极开关; D——被试RCD; R——如10Ω(任何合适的值); G——任意波形发生器(混合10 Hz、50 Hz和1 kHz); A——电流表。 图1 验证在由单相供电电动机转速控制设备产生的含有多频分量的剩余正弦交流电流时正确动作的试验电路举例 说明: S——电源; S1——多极开关(可选); S2——单极开关; D——被试RCD; R——如10Ω(任何合适的值); G——单一半波脉冲发生器(50 Hz或60 Hz); A——电流表。 图2 验证RCD在涌入剩余电流时性能的试验电路 说明: S——电源; A——电流表(测量有效值); S1——多极开关; S2——单极开关; D——被试RCD; R——可调电阻器; G——发电机。 图3 验证1 000 Hz及以下的正弦交流剩余电流时正确动作的试验电路 说明: S——电源; V——电压表; A——电流表(测量有效值); D——被试RCD; R1、R2——可调电阻器; S1——多极开关; S2——单极开关; S3——双向开关。 图4 对于二极、三极、四极B型RCD,验证交流剩余电流叠加平滑直流剩余电流时正确动作的试验电路 说明: S——电源; V——电压表; A——电流表(测量有效值); D——被试RCD; Di——二极管; R1、R2——可调电阻器; S1——多极开关; S2——单极开关; S3和S4——双向开关。 图5 对于二极、三极、四极B型RCD,验证脉动直流剩余电流叠加平滑直流剩余电流时正确动作的试验电路 说明: 点A——随机选取的两相电源; S——电源; V——电压表; A——电流表(测量有效值); D——被试RCD; Di——二极管; R——可调电阻器; S1——多极开关; S2——单极开关; S3——双向开关。 a) 对于二极、三极、四极B型RCD,验证两相供电的整流电路产生的脉动直流剩余电流时正确动作的试验电路 图6 验证整流电路产生的脉动直流剩余电流时正确动作的试验电路 |
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