IEC TR 60755:2008
剩余电流驱动保护器的一般要求

General requirements for residual current operated protective devices

标准号

IEC TR 60755:2008

发布

2008年

发布单位

国际电工委员会

当前最新

IEC TR 60755:2008

 

 

引用标准

IEC 60038 IEC 60050-411:1996 IEC 60050-426:1990 IEC 60050-441:1984 IEC 60050-442:1998 IEC 60050-471:2007 IEC 60364-4-41 IEC 60364-5-53 IEC 60998-1 IEC 61140

代替标准

IEC 60755:2017

被代替标准

IEC 23E/635/DTR:2007 IEC 60755:1983 IEC 60755 AMD 1:1988 IEC 60755 AMD 2:1992

适用范围

The requirements of this technical report apply to residual current operated protective devices (hereinafter referred to as “residual current devices” (RCD)) for rated voltages not exceeding 440 V a.c., intended primarily for protection against shock hazard. They are intended to be used by technical committees when drafting product standards and apply only if they are incorporated or are referred to in the relevant standards. This report is not intended to be used as a stand-alone standard, for example, for certification. NOTE 1 This technical report may also be used as a guide for residual current devices of rated voltages up to 1 000 V, a.c. It applies to – a single device which detects a residual current (see 3.3.2), compares it to a reference value (see 3.3.3) and opens the protected circuit when the residual current exceeds this reference value (see 3.3.4); – an association of devices, each one of them performing separately one or two of the above-mentioned functions, but acting together in order to accomplish all three functions. Particular requirements may be necessary for devices intended for accomplishing only one or two of the above three functions. This report applies for conditions as stated in Clause 7. For other conditions, additional requirements may be necessary. Residual current devices are intended to protect persons and livestock against harmful effects of electric shock due to contact with exposed conductive parts by automatic disconnection of supply in accordance with IEC 61140 and IEC 60364-4-41. NOTE 2 In this context “harmful effects” include the risk of occurrence of heart fibrillation. In accordance with IEC 60364-5-53, residual current devices with a rated residual operating current not exceeding 300 mA may also be used to provide protection against fire hazards due to a persistent earth fault current. In accordance with IEC 60364-4-41, residual current devices with a rated residual operating current not exceeding 30 mA may also be used for additional protection in case of failure of the basic protective provisions or carelessness of the user of the installation or equipment. For residual current devices performing additional functions, this technical report applies together with the relevant standard covering the additional functions; for example, when residual current devices incorporate a circuit-breaker it should comply with the relevant circuit-breaker standard. Supplementary or particular requirements may be necessary, for example, for – residual current devices intended for use by uninstructed persons; – socket-outlets, plugs, adapters and couplers incorporating residual current devices. This technical report states – the definitions of terms used for residual current devices (Clause 3) ; – the classification of residual current devices (Clause 4); – the characteristics of residual current devices (Clause 5); – the preferred values of the operating and influencing quantities (5.4); – the marking and information to be provided for residual current devices (Clause 6); – the standard conditions for installation and operation in service (Clause 7); – the requirements for construction and operation (Clause 8); – the list of minimum requirements to be tested (Clause 9). NOTE 3 Devices having a residual current function for specific purposes other than those mentioned above (for example, motor protection) are not covered by this technical report.

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