iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CLC

EN 61857-21:1999

(Main)

Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose model - Wire-wound applications

Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose model - Wire-wound applications

This general purpose model (GPM) can be used for the evaluation of wire-wound electrical insulation systems where specific electrotechnical products are not available or required.

Elektrische Isoliersysteme - Verfahren zur thermischen Bewertung - Teil 21: Spezielle Bedingungen für ein Mehrzweck-Modell - Anwendung bei Drahtwicklungen

Systèmes d'isolation électrique - Procédures d'évaluation thermique - Partie 21: Exigences particulières pour le modèle d'usage général - Applications aux enroulements à fil

Le présent modèle d'usage général (GPM: abréviation anglaise) peut être utilisé pour l'évaluation de systèmes d'isolation électrique d'enroulements à fils lorsque des produits électrotechniques particuliers ne sont pas disponibles ou nécessaires.

Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose model - Wire-wound applications

General Information

Status
Withdrawn
Publication Date
25-Jan-1999
ICS
29.080.01 - Electrical insulation in general
Technical Committee
CLC/SR 112 - Evaluation and qualification of electrical insulating materials and systems (to be defined)
Drafting Committee
IEC/TC 112 - IEC_TC_112
Parallel Committee
IEC/TC 98 - IEC_TC_98
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
01-Oct-2007
Completion Date
01-Oct-2007
Ref Project
SIST EN 61857-21:2001 - Electrical insulation systems - Procedures for thermal evaluation -- Part 21: Specific requirements for general-purpose model - Wire-wound applications

Relations

Replaced By
EN 61857-21:2004 - Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
Effective Date
29-Jan-2023

Buy Standard

EN 61857-21:2001EN 61857-21:2001
PreviousNext
Standard
EN 61857-21:2001
English language
13 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61857-21:2001
01-september-2001
Electrical insulation systems - Procedures for thermal evaluation - Part 21:
Specific requirements for general-purpose model - Wire-wound applications
Electrical insulation systems - Procedures for thermal evaluation -- Part 21: Specific
requirements for general-purpose model - Wire-wound applications
Elektrische Isoliersysteme - Verfahren zur thermischen Bewertung -- Teil 21: Spezielle
Bedingungen für ein Mehrzweck-Modell - Anwendung bei Drahtwicklungen
Systèmes d'isolation électrique - Procédures d'évaluation thermique -- Partie 21:
Exigences particulières pour le modèle d'usage général - Applications aux enroulements
à fil
Ta slovenski standard je istoveten z: EN 61857-21:1999
ICS:
29.080.30 Izolacijski sistemi Insulation systems
SIST EN 61857-21:2001 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 61857-21:2001

---------------------- Page: 2 ----------------------

SIST EN 61857-21:2001

----------
...

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 61557-12:2022/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 61557-12:2022/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 61557-11:2022(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 11: Effectiveness of residual current monitors (RCM) in TT, TN and IT systems
SIST EN IEC 61557-11:2022

IEC 61557-11:2009 specifies the requirements for testing equipment applied to the testing of the effectiveness of residual current monitors (RCMs) of type A and type B, which are already installed in distribution systems. This test equipment can be used in any kind of network like a TN, TT or IT system. The test equipment may also be used for testing directionally discriminating RCMs in IT-Systems.This part is to be used in conjunction with IEC 61557-1:2007, Part 1: General requirements.

  • Standard
    17 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    20 pages
    English 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
  • Draft
    9 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
  • Draft
    10 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
  • Draft
    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
  • Draft
    13 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-2:2021(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 2: Insulation resistance
SIST EN IEC 61557-2:2022

IEC 61557-2:2019 is available as IEC 61557-2:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-2:2019 specifies the requirements applicable to equipment for measuring the insulation resistance of equipment and installations in the de-energized state IEC 61557-2:2019 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 requirements as regards measurement category; b) addition of new requirements for operating instructions; c) alignment of the structure with that of the the whole IEC 61557 series.

  • Standard
    12 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    9 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 61557-4:2021(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 4: Resistance of earth connection and equipotential bonding
SIST EN IEC 61557-4:2022

IEC 61557-4:2019 is available as IEC 61557-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-4:2019 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the measured value or an indication of the limits. IEC 61557-4:2019 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) complement to the measurement category in Clause 4; b) correction of the equation for operating uncertainty; c) complement to the requirements for measuring with DC; d) alignment of the structure with that of the whole IEC 61557 series.

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