iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CLC

EN 61935-2:2010

(Main)

Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801 and related standards

Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801 and related standards

IEC 61935-2:2010 provides methods to ensure compatibility of balanced cords to be used in cabling according to ISO/IEC 11801 and provides test methods and associated requirements to demonstrate the performance and reliability of these balanced cords during their operational lifetime. This International Standard may also be used for providing test methods for assessing the behaviour of other balanced cords. This third edition cancels and replaces the second edition published in 2005. It differs from the second edition in that it covers category 6A to category 7A cords as defined in ISO/IEC 11801.

Spezifikation für die Prüfung der symmetrischen und koaxialen informationstechnischen Verkabelung – Teil 2: Schnüre nach ISO/IEC 11801 und entsprechenden Normen

Spécification relative aux essais des câblages symétriques et coaxiaux des technologies de l'information - Partie 2: Cordons tels que spécifiés dans l'ISO/CEI 11801 et normes associées

La CEI 61935-2:2010 fournit des méthodes en vue de s'assurer de la compatibilité des cordons à paires symétriques à utiliser dans les câblages selon l'ISO/IEC 11801, ainsi que des méthodes d'essai et leurs exigences associées pour démontrer les performances et la fiabilité de ces cordons à paires symétriques au cours de leur durée de vie opérationnelle. La présente Norme internationale peut également être utilisée en vue de fournir des méthodes d'essai pour l'évaluation du comportement d'autres cordons à paires symétriques. Cette troisième édition annule et remplace la deuxième édition publiée en 2005. Elle diffère de la deuxième édition en ce qu'elle couvre les cordons de catégorie 6A à catégorie 7A, comme défini dans l'ISO/IECEI 11801.

Specifikacija za preskušanje simetričnega in koaksialnega okablenja v informacijski tehnologiji - 2. del: Vrvice po specifikaciji iz ISO/IEC 11801 in sorodnih standardov (IEC 1935-2:2010)

Ta mednarodni standard predpisuje metode, ki zagotavljajo združljivost simetričnih vrvic, ki se uporabljajo v okablenju v skladu z ISO/IEC 11801 ter predpisuje preskusne metode in pridružene zahteve za prikaz zmogljivosti in zanesljivosti teh simetričnih vrvic v njihovi operativni življenjski dobi. Ta mednarodni standard se lahko uporablja tudi za predpisovanje preskusnih metod za ocenjevanje vedenja drugih simetričnih vrvic.

General Information

Status
Published
Publication Date
02-Sep-2010
Withdrawal Date
31-Aug-2013
ICS
33.040.20 - Transmission systems
33.120.20 - Wires and symmetrical cables
Technical Committee
CLC/TC 46X - Communication cables
Drafting Committee
CLC/SC 46XA - Coaxial cables
Parallel Committee
IEC/TC 46 - IEC_TC_46
Current Stage
6060 - Document made available - Publishing
Start Date
03-Sep-2010
Completion Date
03-Sep-2010
Ref Project
SIST EN 61935-2:2010 - Specification for the testing of balanced and coaxial information technology cabling - Part 2: Cords as specified in ISO/IEC 11801 and related standards (IEC 1935-2:2010)

Relations

Replaces
EN 61935-2:2005 - Testing of balanced communication cabling in accordance with standards series EN 50173 - Part 2: Patch cords and work area cords
Effective Date
29-Jan-2023

Buy Standard

EN 61935-2:2010 - BARVEEN 61935-2:2010 - BARVE
PreviousNext
Standard
EN 61935-2:2010 - BARVE
English language
31 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-november-2010
1DGRPHãþD
SIST EN 61935-2:2006
6SHFLILNDFLMD]DSUHVNXãDQMHVLPHWULþQHJDLQNRDNVLDOQHJDRNDEOHQMDY
LQIRUPDFLMVNLWHKQRORJLMLGHO9UYLFHSRVSHFLILNDFLMLL],62,(&LQ
VRURGQLKVWDQGDUGRY ,(&
Specification for the testing of balanced and coaxial information technology cabling - Part
2: Cords as specified in ISO/IEC 11801 and related standards (IEC 1935-2:2010)
Spezifikation für die Prüfung der symmetrischen und koaxialen informationstechnischen
Verkabelung – Teil 2: Schnüre nach ISO/IEC 11801 und entsprechenden Normen (IEC
1935-2:2010)
Spécification relative aux essais des câblages symétriques et coaxiaux des technologies
de l'information - Partie 2: Cordons tels que spécifiés dans l'ISO/CEI 11801 et normes
associées (CEI 1935-2:2010)
Ta slovenski standard je istoveten z: EN 61935-2:2010
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61935-2
NORME EUROPÉENNE
September 2010
EUROPÄISCHE NORM
ICS 33.040.20; 33.120.20 Supersedes EN 61935-2:2005

English version
Specification for the testing of balanced and coaxial information
technology cabling -
Part 2: Cords as specified in ISO/IEC 11801 and related standards
(IEC 61935-2:2010)
Spécification relative aux essais  Spezifikation für die Prüfung
des câblages symétriques et coaxiaux der symmetrischen und koaxialen
des technologies de l'information - informationstechnischen Verkabelung –
Partie 2: Cordons tels que spécifiés Teil 2: Schnüre nach ISO/IEC 11801
dans l'ISO/CEI 11801 et normes und entsprechenden Normen
associées (IEC 61935-2:2010)
(CEI 61935-2:2010)
This European Standard was approved by CENELEC on 2010-09-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61935-2:2010 E
Foreword
The text of document 46/351/FDIS, future edition 3 of IEC 61935-2, prepared by IEC TC 46, Cables,
wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61935-2 on
2010-09-01.
This European Standard supersedes EN 61935-2:2005.
This EN 61935-2:2010 differs from EN 61935-2:2005 in that it covers category 6 to category 7 cords as
A A
defined in ISO/IEC 11801.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-06-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-09-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61935-2:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60068-2-68 NOTE  Harmonized as EN 60068-2-68.
1) 1)
IEC 60512-27-100 NOTE  Harmonized as EN 60512-27-100 .
__________
1)
At draft stage.
- 3 - EN 61935-2:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60068-2-61 - Environmental testing - EN 60068-2-61 -
Part 2: Test methods - Test Z/ABDM: Climatic
sequence
IEC 60603-7 Series Connectors for electronic equipment - Part 7: EN 60603-7 Series
Detail specifications
IEC 60603-7 2008 Connectors for electronic equipment - EN 60603-7 2009
Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors

IEC 60603-7-51 - Connectors for electronic equipment - EN 60603-7-51 -
Part 7-51: Detail specification for 8-way,
shielded, free and fixed connectors, for data
transmissions with frequencies up to 500 MHz

IEC 61076-3-104 - Connectors for electronic equipment - EN 61076-3-104 -
Product requirements -
Part 3-104: Detail specification for 8-way,
shielded free and fixed connectors for data
transmissions with frequencies up to
1 000 MHz
IEC 61076-3-110 - Connectors for electronic equipment - EN 61076-3-110 -
Product requirements -
Part 3-110: Rectangular connectors - Detail
specification for shielded, free and fixed
connectors for data transmission with
frequencies up to 1 000 MHz
IEC 61156 Series Multicore and symmetrical pair/quad cables - -
for digital communications
IEC 61156-1 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 1: Generic specification
IEC 61156-6 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 6: Symmetrical pair/quad cables with
transmission characteristics up to 1 000 MHz -
Work area wiring - Sectional specification

IEC 61935-1 (mod) 2009 Specification for the testing of balanced and EN 61935-1 2009
coaxial information technology cabling -
Part 1: Installed balanced cabling as specified
in ISO/IEC 11801 and related standards

Publication Year Title EN/HD Year

IEC 62153-4-11 - Metallic communication cable test methods - - -
Part 4-11: Electromagnetic compatibility
(EMC) - Coupling attenuation or screening
attenuation of patch cords, coaxial cable
assemblies, pre-connectorized cables -
Absorbing clamp method
ISO/IEC 11801 - Information technology - Generic cabling for - -
customer premises
IEC 61935-2 ®
Edition 3.0 2010-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 2: Cords as specified in ISO/IEC 11801 and related standards

Spécification relative aux essais des câblages symétriques et coaxiaux des
technologies de l’information –
Partie 2: Cordons tels que spécifiés dans l’ISO/CEI 11801
et normes associées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 33.040.20; 33.120.20 ISBN 978-2-88912-001-7
– 2 – 61935-2 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 General requirements and test configuration .8
4.1 Cable and connector design .8
4.2 Balanced cord, cable and connector tests .8
4.3 Test configuration and equipment.8
4.4 Balanced cord tests requirements .9
5 Acceptance tests .10
5.1 Visual inspection .10
5.2 Wire map.11
5.3 Propagation delay .12
5.4 Delay skew.12
5.5 Insertion loss.12
5.6 Return loss.12
5.7 Near end crosstalk (NEXT).13
5.8 Assumptions used in the development of cord requirements.16
6 Balanced cord test procedure – Network analyser test configuration .16
7 Periodic tests .17
7.1 General .17
7.2 Tensile strength .17
7.3 Flexure.18
7.4 Bending.19
7.5 Twisting.19
7.6 Crushing .20
7.7 Dust test.21
7.8 Coupling attenuation .23
7.9 Climatic sequence .24
8 Test head requirements.24
8.1 General .24
8.2 Minimum requirements for all test head designs .24
8.3 Additional FEXT requirements for balanced connector compatible test heads.25
8.4 Additional return loss requirements for balanced connector compatible test
heads .25
8.5 NEXT loss centering requirements for balanced connector compatible test
heads .25
Bibliography.27

61935-2 © IEC:2010 – 3 –
Figure 1 – Test configuration for balanced cord for NEXT and return loss
measurements .9
Figure 2 – Correct pairing .11
Figure 3 – Incorrect pairing .11
Figure 4 – Initial marking of the cable sheath.17
Figure 5 – Final visual inspection.17
Figure 6 – Fixture for balanced cord flexure test .18
Figure 7 – Bending test: assembly in U shape .19
Figure 8 – Twisting test: assembly in U shape .20
Figure 9 – Fixture for cable crushing test .
...

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 60335-2-39:2024(Main)
Household and similar electrical appliances - Safety - Part 2-39: Particular requirements for commercial electric multi-purpose cooking pans
kSIST FprEN 60335-2-39:2012

IEC 60335-2-39:2012 deals with the safety of electrically operated commercial multi-purpose cooking pans not intended for household and similar use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances. This standard also deals with pressurized appliances and appliances with pressurized parts. These appliances are used for processing food for commercial consumption, for example in kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries, butcheries, etc. The electrical part of appliances making use of other forms of energy is also within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by these types of appliances. Attention is drawn to the fact that for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary. The principal changes in this edition as compared with the fifth edition of IEC 60335-2-39 are as follows (minor changes are not listed): - addition to definition of portable appliances, atmospheric multi-purpose cooking and rated pressure; - deletion of equipotential symbol 5021 of IEC 60417 covered by Part 1; - addition of instructions for multi-purpose cooking pans; - modification on leakage current permissible for portable class l appliances; - addition to abnormal test requirements; - addition to mechanical hazard test for multi-purpose cooking pans; - addition of construction test for multi-purpose cooking pans; - addition to construction requirements for lids and theirs grips; - addition to construction requirements for positioning of pressure reliefs; - addition to construction's fixed appliances which are moved forward and backward for cleaning purposes.
The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication. Keywords: Multi-purpose cooking pans.

  • Draft
    21 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60034-9:2024(Main)
Rotating electrical machines - Part 9: Noise limits
SIST EN IEC 60034-9:2025

IEC 60034-9:2021 specifies test methods for the determination of sound power level of rotating electrical machines and specifies maximum A-weighted sound power levels for factory acceptance testing of network-supplied, rotating electrical machines in accordance with lEC 60034-1, having methods of cooling according to lEC 60034-6 and degrees of protection according to lEC 60034-5, and having the following characteristics: - standard design, either AC or DC, without additional special electrical, mechanical, or acoustical modifications intended to reduce the sound power level - rated output from 1 kW (or kVA) up to and including 5 500 kW (or kVA) - rated speed not greater than 3 750 min–1 This fifth edition cancels and replaces the fourth edition, published in 2003 and its amendment 1, published in 2007. This edition includes the following significant technical changes with respect to the previous edition: a) In Table 2 and Table 3 cooling methods IC01, IC11, IC21 and IC31, IC71, IC81 are now covered. b) This edition adds Table 3 for 60 Hz machines, whereas Table 2, which covers only 50 Hz machines, has no change in levels. c) In Table 3, grade A is added to harmonize the highest levels seen in IEC and NEMA, whereas grade B was added to harmonize the lowest, more restrictive levels seen in IEC and NEMA. d) The clause “Determination of noise increments caused by converter supply” has been shifted to Annex B and renamed “Information on typical noise increments caused by converter supply”.

  • Draft
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60034-12:2024(Main)
Rotating electrical machines - Part 12: Starting performance of single-speed three-phase cage induction motors
SIST EN IEC 60034-12:2025

IEC 60034-12:2024 is available as IEC 60034-12:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60034-12:2024 specifies the parameters for eight designs of starting performance of single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034‑1 that: - have a rated voltage up to 1 000 V; - are intended for direct-on-line or star-delta starting; - are rated on the basis of duty type S1; - are constructed to any degree of protection as defined in IEC 60034-5 and explosion protection. This document also applies to dual voltage motors provided that the flux saturation level is the same for both voltages. This fourth edition cancels and replaces the third edition published in 2016. Aligned with the requirements for explosion protected motors from TC31 WG27 - new clause on methods for measuring locked-rotor current and torque; - new informative annex on the general current and torque characteristics with locked rotor; - new informative annex on correction of voltage and frequency; - aligned with the requirements for explosion protected motors from TC31 WG27.

  • Draft
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60335-2-40:2024/A11:2024(Amendment)
Household and similar electrical appliances - Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
kSIST prEN IEC 60335-2-40:2023/kFprAA:2024

This European Standard deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units, dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial units. Their maximum rated voltage being not more than 300 V for single phase appliances and 600 V for multi-phase appliances. Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.

  • Draft
    22 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60034-11:2024(Main)
Rotating electrical machines - Part 11: Thermal protection
SIST EN IEC 60034-11:2025

IEC 60034-11:2020 is available as IEC 60034-11:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60034-11:2020 specifies requirements relating to the use of thermal protectors and thermal detectors incorporated into the stator windings or placed in other suitable positions in induction machines in order to protect them against serious damage due to thermal overloads. It applies to single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1 and IEC 60034-12 that: - have a rated voltage up to 1 000 V; - are intended for direct-on-line or star-delta starting. The main changes with respect to the previous edition are: - the additional specification of winding temperature limits for temperature class 200 (N), - the increased limits of maximum winding temperatures for overloads with rapid variation, - the clarification that the motor winding may be permanently damaged after it has been exposed to temperatures - a clarification of the definition of indirect thermal protection, - a clarification on the test methods for larger motors.

  • Draft
    13 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60335-2-40:2024(Main)
Household and similar electrical appliances - Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
kSIST FprEN IEC 60335-2-40:2024

This European Standard deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units, dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial units. Their maximum rated voltage being not more than 300 V for single phase appliances and 600 V for multi-phase appliances. Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.

  • Draft
    158 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60704-2-10:2024(Main)
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-10: Particular requirements for ranges, ovens, steam ovens, grills and microwave ovens
SIST EN IEC 60704-2-10:2024

IEC 60704-2-10:2024 applies to ranges, ovens, steam ovens, grills and microwave ovens for household and similar use. This document does not apply to hobs. This document does not apply to appliances or parts of appliances that use gas energy. Requirements for the declaration of noise emission values are not within the scope of this document. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) alignment with the fourth edition of IEC 60704-1:2021; b) alignment with IEC 60350-1:2023 regarding the definitions and settings; c) introduction of the measurement of the steam function; d) revision of settings and test parameters. This document is intended to be used in conjunction with IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 62271-211:2024(Main)
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
SIST EN IEC 62271-211:2024

IEC 62271-211:2024 is applicable to single- and three-phase direct connections between gas-insulated metal-enclosed switchgear (GIS) for rated voltages above 52 kV and transformer arrangements to establish electrical and mechanical interchange ability and to determine the limits of supply for the transformer connection. This second edition cancels and replaces the first edition of IEC 62271-211:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) re-numbering of clauses according to IEC 62271-1:2017, b) Clause 3: updating definition about bushing (3.1), updating some pressure definitions (3.6, 3.7, 3.8, 3.9), rewording definition about proctor density (3.11), new term very-fast-front overvoltage (3.12), c) Clause 5 (former clause 4): add a subclause 5.1 General, according to IEC 62271-1:2017 and IEC 62271-203:2022, 1) subclause 5.5: new first paragraph, rewording second paragraph, 2) subclause 5.8: modify the term "Rated duration of thermal short-time current" of the bushing, d) Clause 6 (former Clause 5): restructure and rewording of subclauses: 1) 6.1 (former 5.3): requirements about gas and vacuum tightness of the transformer bushing 2) 6.3 (former 5.2): harmonization with IEC 62271-203:2022 about typical maximum pressure in service for SF6, other gases and gas mixtures, 3) 6.4 (former 5.8), rewording 4) 6.5 (former 5.1), some rewording and modification 5) 6.6 (former 5.4), some rewording, updated references 6) 6.7 (former 5.5), some rewording 7) 6.8 (former 5.6), some rewording 8) 6.9 (former 5.7), slight rewording, e) Clause 7 (former clause 6) type tests: some rewording and clarifications about references, f) Clause 8 (former clause 7) routine tests: 1) 8.2 (former 7.2): add a paragraph about SF6-mixtures and other gases than SF6, 2) 8.3 (former 7.3): update reference to relevant on-site test according to IEC 62271‑203:2022, g) Clause 9 Guide to the selection of switchgear and controlgear (new): informative, to have a reference to IEC 62271-203:2022, h) Clause 11 (former 10): updated headline and updated reference according to IEC 62271‑1:2017, i) new Clauses 12 Safety and 13 Environmental aspects: Adding of references to safety and environmental aspects, j) correction of errors in Corrigendum 2 of IEC 62271-211:2017, k) modified orientation of Figure 1 to Figure 4 for easier reading of the tables.

  • Standard
    28 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN 50156-1:2024(Main)
Electrical equipment for furnaces and ancillary equipment - Part 1: Requirements for application design and installation
kSIST FprEN 50156-1:2024

This document applies to the application design and installation of electrical equipment, control circuits and safety-related systems for furnaces which are operated with solid, liquid or gaseous fuels and their ancillary equipment. It specifies requirements to meet the operating conditions of furnaces, to reduce the hazards of combustion and to protect the heated systems from damage e.g. by overheating. Such furnaces and the electrical equipment can be part by way of example of the following plant: a) water heating systems; b) steam boiler installations (steam and hot-water boilers) and heat recovery steam boilers; NOTE 1 The requirements of this document apply according to the electrical equipment of electrically heated steam boilers. NOTE 2 Seagoing vessels and offshore facilities are governed by International Maritime Law and as such are not within the scope of this document. These requirements can be used for such facilities. c) warm air heaters; d) hot-gas heaters; e) heat exchanger systems; f) combustion chambers of stationary turbines; g) as long as no other standard is applicable for combined heat and power stations, we recommend the use of the requirements of this document; This document can also be used as reference for electrical equipment requirements for thermo-processing equipment. The requirements in this document are not applicable to electrical equipment for: 1) non-electrically heated appliances and burner control systems for household and similar purposes; 2) furnaces using technologies for the direct conversion of heat into electrical energy; 3) combustion chambers of non-stationary prime movers and turbines; 4) central oil supply systems for individual heating appliances; 5) furnaces using solid fuels for heating purposes for household use with a nominal thermal output up to 1 MW; 6) furnaces which are used to heat process fluids and gasses in chemical plant. This document can be used as a basis for the requirements placed on electrical equipment for furnaces, which are excluded from its field of application. This document specifies special requirements for the management of functional safety.

  • Draft
    101 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CLC
EN IEC 60308:2024(Main)
Hydraulic turbines - Testing of governing systems
SIST EN IEC 60308:2024

IEC 60308:2024 deals with the definition and the characteristics of control systems. It is not limited to the actual controller tasks but also includes other tasks which may be assigned to a control system, such as sequence control tasks, safety and provision for the actuating energy. The following systems are included, speed, power, opening, water level and flow control for all turbine types; electronic, electrical and fluid power devices; safety devices as well as start-up and shutdown devices. The significant technical changes introduced by the third edition are the adoption of parts of IEC 61362:2024 which deal with test matters and the introduction of new technical aspects.

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