iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CLC

EN 50678:2020/AC:2021-04

(Corrigendum)

General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair

General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair

2021-05-03: TC - correction of Figure 3e and to correct the formula in 5.3

Allgemeines Verfahren zur Überprüfung der Wirksamkeit der Schutzmaßnahmen von Elektrogeräten nach der Reparatur

Procédure générale visant à vérifier l'efficacité des mesures de protection des équipements électriques après réparation

Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno opremo po popravilu

General Information

Status
Published
Publication Date
15-Apr-2021
ICS
17.220.20 - Measurement of electrical and magnetic quantities
Technical Committee
CLC/TC 85X - Measuring equipment for electrical and electromagnetic quantities
Drafting Committee
CLC/TC 85X - Measuring equipment for electrical and electromagnetic quantities
Current Stage
6060 - Document made available - Publishing
Start Date
16-Apr-2021
Completion Date
16-Apr-2021
Ref Project
SIST EN 50678:2020/AC:2021 - General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair

Relations

Corrects
EN 50678:2020 - General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair
Effective Date
16-Mar-2021

Buy Standard

EN 50678:2020/AC:2021EN 50678:2020/AC:2021
PreviousNext
Corrigendum
EN 50678:2020/AC:2021
English language
2 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day
EN 50678:2020/AC:2021EN 50678:2020/AC:2021
PreviousNext
Corrigendum – translation
EN 50678:2020/AC:2021
Slovenian and English language
4 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2021
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno
opremo po popravilu
General procedure for verifying the effectiveness of the protective measures of electrical
equipment after repair
Allgemeines Verfahren zur Überprüfung der Wirksamkeit der Schutzmaßnahmen von
Elektrogeräten nach der Reparatur
Procédure générale visant à vérifier l'efficacité des mesures de protection des
équipements électriques après réparation
Ta slovenski standard je istoveten z: EN 50678:2020/AC:2021-04
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 50678:2020/AC:2021
Corrigendum to EN 50678:2020
English version
___________
...


SIST 50678:2020/AC
S L O V E N S K I
S T A N D A R D  julij 2021
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno
opremo po popravilu
General procedure for verifying the effectiveness of the protective measures of
electrical equipment after repair

Procédure générale visant à vérifier l'efficacité des mesures de protection des
équipements électriques après réparation

Allgemeines Verfahren zur Überprüfung der Wirksamkeitder Schutzmaßnahmen
von Elektrogeräten nach der Reparatur

Referenčna oznaka
ICS 17.220.20 SIST EN 50678:2020/AC:2021 (sl, en)

Nadaljevanje na straneh 2 do 5

2024-06. Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno.

SIST EN 50678:2020/AC : 2021
Popravek k EN 50678:2020
slovenska izdaja
Zamenja se enačba v 5.3, "Meritev upornosti zaščitne povezave", z naslednjo enačbo:
"Za prereze nad 1,5 mm in druge dolžine kabla je treba mejno vrednost izračunati po naslednji enačbi:

ali
kjer so:
R električna upornost (Ω)
ρ standardna vrednost specifične električne upornosti (m/(Ω mm /m) za kovino, uporabljeno za
vodnik PE
l dolžina kabla v metrih (m)
A prerez vodnika v kvadratnih milimetrih (mm )
κ specifična električna prevodnost (m/(Ω mm )
OPOMBA 2: Vrednost 0,1 Ω v enačbi zgoraj upošteva
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CLC
EN IEC 61557-7:2022/A1:2023(Amendment)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence
SIST EN IEC 61557-7:2022/A1:2024

2022-06-02: CLC/TC 85X made a decision to temporarily remove the link, meanwhile working on the harmonziation issue via another amendment togther with CLC/TC 65X

  • Amendment
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-12:2022/A1:2022/AC:2022-09(Corrigendum)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 12: Power metering and monitoring devices (PMD)
SIST EN IEC 61557-12:2022/A1:2022/AC:2022

IEC Corrected Version

  • Corrigendum
    4 pages
    French language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-12:2022/AC:2022-09(Corrigendum)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 12: Power metering and monitoring devices (PMD)
SIST EN IEC 61557-12:2022/AC:2022

IEC Corrected Version

  • Corrigendum
    4 pages
    French language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-7:2022(Main)
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence
SIST EN IEC 61557-7:2022

IEC 61557-7:2019 is available as IEC 61557-7:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-7:2019 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible. This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays. IEC 61557-7:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following changes with respect to the previous edition: a) alignment of the structure with that of the whole IEC 61557 series; b) updated requirements in 4.3 in accordance with new editions of IEC 61010-1 and IEC 61010-031; c) the information on markings was extended; d) the information on the operating instructions was extended; e) complement to the information on the testing of leads; f) test leads for insulated conductors were introduced; g) Annex B was added with information on phase sequence tests and indications.

  • Standard
    17 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-3:2022(Main)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop impedance
SIST EN IEC 61557-3:2022

IEC 61557-3:2019 is available as IEC 61557-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-3:2019 specifies the requirements applicable to equipment for measuring the loop impedance between a line conductor and protective conductor; between a line conductor and neutral; or between two line conductors by using the voltage drop when the circuit under test is loaded. IEC 61557-3:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of equirements as regards the measurement category; b) addition of new requirements for operating instructions; c) alignment of the structure with that of the whole IEC 61557 series.

  • Standard
    14 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60477-1:2022(Main)
Laboratory resistors - Part 1: Laboratory DC resistors
SIST EN IEC 60477-1:2022

IEC 60477-1:2022 applies to resistors intended for use as laboratory DC resistors (hereinafter referred to as "resistors") comprising standard resistors, single or multiple resistors of accuracy Classes 0,000 05 to 10 and single or multi-dial resistors of accuracy Classes 0,000 5 to 10. This document does not apply to: 1) resistors which are intended for use solely as permanently mounted circuit components, 2) resistors used on alternating current or on pulsed current, 3) active resistors, 4) series resistors and shunts which are considered as accessories of electrical measuring instruments in the relevant IEC document (examples of these are as follows). IEC 60477-1:2022 cancels and replaces the first edition of IEC 60477 published in 1974, and its Amendment 1:1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) extended the resistor accuracy classes; b) deleted the resistor accuracy class expression in parts per million (ppm); c) excluded the active resistor from the scope of this document; d) updated the terms and definitions according to new IEC 60050 series; e) changed the term "resistance decade" to "resistance dial" to cover the multi-dial resistors with other resistance step values; f) updated the intrinsic error to intrinsic uncertainty according to IEC 60359; g) added the limits of relative stability for resistors of classes 0,000 05 to 0,01; h) added the requirements of high voltage resistors; i) updated the safety symbols and requirements according to the new IEC 61010 series; j) updated the insulation resistance requirements of resistors; k) added the requirements of temperature coefficient; l) updated the temperature requirements for transport and storage of resistors.

  • Standard
    30 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60477-2:2022(Main)
Laboratory resistors - Part 2: Laboratory AC resistors
SIST EN IEC 60477-2:2022

This part of IEC 60477 applies to resistors intended as laboratory AC resistors for use over a range of frequencies from DC up to a stated frequency which is not in excess of 1 MHz. Such resistors are hereinafter referred to as "AC resistors". In addition to satisfying the requirements of IEC 60477, resistors satisfying the requirements of this standard are designed to have a small variation of resistance and a small phase displacement over the stated frequency range. Because of the uncertainties in AC properties which can result from stray inductances, stray capacitances, eddy currents, dielectric absorption effects and skin effect, the AC resistors to which this standard applies are classified according to their construction (see Annex D), as follows: a) Two-terminal resistor which each of one terminal both for current and potential; b) Three-terminal resistor which has one more shield terminal (also could be called as guard terminal) connected to the electric screen than the two-terminal resistor to reduce the stray capacitances effect; c) Four-terminal resistor which has independent current terminals and potential terminals to reduce the stray inductances and contact resistances; d) Five-terminal resistor which has one more shield terminal than the four-terminal resistor; e) Four-terminal coaxial resistor which has two terminal-pairs with the outer shield conductors working as the low terminal of current or potential; f) Two-terminal-pair resistor which has two terminal-pairs with the outer shield conductors working as the return path for the signal current (not grounded); g) Four-terminal-pair resistor which has four terminal-pairs with the outer shield conductors working as the return path for the signal current (not grounded) to eliminate the effect of mutual coupling between the current and potential leads.

  • Standard
    30 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-12:2022/A1:2022(Amendment)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 12: Power metering and monitoring devices (PMD)
SIST EN IEC 61557-12:2022/A1:2022

This part of IEC 61557 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally other external signals. These requirements also defin the performance of PMD in single- and three-phace AC or DC systems having rated voltages up to 1000 V AC or up to 1500 V DC. These devices are fixed or portable. They are intended to be used indoors and/or outdoors. Power metering and monitoring devices (PMD), as defined in this document, give additional safety information, which aids the verification of the installation and enhances the performance of the distribution systems. Additionally, this document specifies requirements for measurement functions dedicated to metering and monitoring of electrical parameters called power metering and monitoring function (PMF) which can be embedded in equipment (EMPF) that is not classified as PMD and for which the main function is not power metering and monitoring. Requirements for power metering and monitoring function (PMF) and additional requirements for equipments embedding power metering and monitoring function (EPMF) are described in Annex H. The power metering and monitoring devices (PMD) for electrical parameters described in this document are used for general industrial and commercial applications. This document does not address functional safety and cyber security aspects. This document is not applicable to: - electricity metering equipment that complies with IEC 62053-21, IEC 62053-22, IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for active and reactive energy measurement are derived from those defined in IEC 62053 (all parts); - the measurement and monitoring of electrical parameters defined in IEC 61557-2 to IEC 61557-9 and IEC 61557-13 or in IEC 62020; - power quality instrument (PQI) according IEC 62586 (all parts); - devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring instrument). Note 1 Generally such types of devices are used in the following applications or for the following general needs: - energy management inside the installation, such as facilitating the implementation of documents such as ISO 50001 and IEC 60364-8-1; - monitoring and/or measurement of electrical parameters; - measurement and/or monitoring of the quality of energy inside commercial/industrial installations. Note 2 A measuring and monitoring device of electrical parameters usually consists of several functional modules. All or some of the functional modules are combined in one device. Examples of fuctnional modules are: - measurement and monitoring of several electrical parameters simultaneously; - energy measurement and/or monitoring, as well as sometimes compliance with aspects of building regulations; - alarms functions; - demand side quality (current and voltage harmonics, over/under voltages, voltage dips and swells, etc.). Note 3 PMD are historically called power meter, power monitor, power monitor device, power energy monitoring device, power analyser, multifunction meter, measuring multifunction equipment, energe meters. Note 4 Metering, measuring and monitoring applications are explained in Annex A.

  • Amendment
    26 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-12:2022(Main)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 12: Power metering and monitoring devices (PMD)
SIST EN IEC 61557-12:2022

IEC 61557-12:2018 is available as IEC 61557-12:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-12:2018 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally other external signals. These requirements also define the performance in single- and three-phase AC or DC systems having rated voltages up to 1 000 V AC or up to 1 500 V DC. These devices are fixed or portable. They are intended to be used indoors and/or outdoors. Power metering and monitoring devices (PMD), as defined in this document, give additional safety information, which aids the verification of the installation and enhances the performance of the distribution systems. The power metering and monitoring devices (PMD) for electrical parameters described in this document are used for general industrial and commercial applications. This document does not address functional safety and cyber security aspects. This document is not applicable for: – electricity metering equipment that complies with IEC 62053-21, IEC 62053-22, IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for active and reactive energy measurement are derived from those defined in IEC 62053 (all parts); – the measurement and monitoring of electrical parameters defined in IEC 61557-2 to IEC 61557-9 and IEC 61557-13 or in IEC 62020; – power quality instrument (PQI) according IEC 62586 (all parts); – devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring instrument). IEC 61557-12:2018 cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) PMD-A has been withdrawn due the fact these devices are now mainly covered by the IEC 62586 series of standards. b) Three categories of PMD have been created with a list of minimum required functions for each category. c) Added a new Annex A explaining the different applications linked to the relevant standards and devices, and another new Annex C about the power factor conventions.

  • Standard
    106 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-17:2021(Main)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 17: Non-contact AC voltage indicators
SIST EN IEC 61557-17:2022

This part of IEC 61557 defines minimum performance requirements for non-contact AC voltage indicators to reduce the risk of electric shock for the testing person and bystanders caused by the wrong interpretation of the indication. Products designed and manufactured in accordance with this document are for use by (electrically) skilled persons only. Non-contact AC voltage indicators are not designed for testing the absence of the operating voltage.

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day