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  • BSI
    BS EN IEC 63052:2021 Power frequency overvoltage protective devices (POPs) for household and similar applications
    Edition: 2021
    $538.63
    / user per year

Description of BS EN IEC 63052:2021 2021

This document applies to devices for power frequency overvoltage protection (hereafter referred to as "POP") for household and similar uses, with a rated frequency of 50 Hz, 60 Hz or 50/60 Hz, with rated voltage not exceeding 230 V AC (between phase and neutral), and with rated current not exceeding 63 A, either consisting of a functional unit in combination with a main protective device (MPD), or as one single device having opening means able to open the protected circuit in specified conditions.

The main protective device is a circuit-breaker, an RCCB or an RCBO.

NOTE 1 A POP, as one single device, is not a protective device to be used for automatic disconnection of the supply within the meaning specified in IEC 60364-4-41.

POPs are intended for use in an environment with pollution degree 2 and overvoltage category III. Devices for POPs are suitable for isolation.

POPs can be designed as a POP unit assembled to or integrated in a main protective device by the manufacturer or as an assembly of a main protective device mechanically or electrically coupled on site with the POP unit, or as one single POP having opening means able to open the protected circuit in specified conditions.

POPs are intended to mitigate the effects of power frequency overvoltages between a phase and neutral conductor (e.g. caused by loss of a neutral conductor in the three-phase supply upstream of the POP) for downstream equipment by opening the protected circuit when an overvoltage between phase and neutral is detected.

NOTE 2 In this context, the verb "mitigate" means that the POP will provide protection in most cases of power frequency overvoltages.

POPs intended for monitoring one line-to-neutral conductor voltage can be used between two-phase conductors in a phase-to-phase electrical supply system not exceeding 230 V if both conductors are switched and declared as such by the manufacturer.

POPs according to this document are suitable for use in an IT system provided all active conductors are switched.

This document does not apply to protection against common mode overvoltages.

This document does not apply to surge protective devices.



Standard NumberBS EN IEC 63052:2021
TitlePower frequency overvoltage protective devices (POPs) for household and similar applications
StatusDefinitive
Publication Date2021-09-23
ReplacesBS EN 50550:2011+A1:2014
Identical National Standard OfEN 63052 Ed 1.0, IEC 63052:2019/COR1:2019, IEC 63052:2019, EN 62541-9:2012
DescriptorsElectromagnetic compatibility, Overvoltage protection, Electrical equipment, Overvoltage, Domestic electrical installations, Rated voltage, Electric power systems, Electronic equipment and components, Electrical household appliances, Electrical protection equipment, Leakage paths, Clearance distances, Circuit-breakers, Rated frequencies, Electrical safety, Electrical testing
ICS29.120.50 Fuses and other overcurrent protection devices
CommitteePEL/23/1
ISBN978 0 580 93850 4
PublisherBSI
Pages126

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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