Category Archives: IEC

IEC 61672-2 Ed. 2.1 b:2017

Electroacoustics – Sound level meters – Part 2: Pattern evaluation tests CONSOLIDATED EDITION

Published by: 2017-04-04 / 2017-04-04 / 160 pages
IEC 61672-2:2013 provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61672-1 for time-weighting sound level meters, integrating-averaging sound level meters, and integrating sound level meters. Pattern-evaluation tests apply for each channel of a multi-channel sound level meter, as necessary. Tests and test methods are applicable to class 1 and class 2 sound level meters. The aim is to ensure that all laboratories use consistent methods to perform pattern-evaluation tests. This second edition cancels and replaces the first edition published in 2003. This second edition constitutes a technical revision, the main technical changes with regard to the previous edition concern conformance to specifications which is now demonstrated when measured deviations from design goals do not exceed the applicable acceptance limits, and when the uncertainty of measurement does not exceed the corresponding maximum permitted uncertainty, with both uncertainties determined for a coverage probability of 95 %. In this document, references to IEC 61672-1, IEC 61672-2, and IEC 61672-3 refer to the second editions unless stated otherwise. Procedures for the pattern-evaluation testing of sound level meters designed to conform to the specifications of IEC 61672-1:2002 were given in IEC 61672-2:2003. This consolidated version consists of the second edition (2013) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.

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IEC 60335-2-42 Ed. 5.2 b:2017

Household and similar electrical appliances – Safety – Part 2-42: Particular requirements for commercial electric forced convection ovens, steam cookers and steam-convection ovens CONSOLIDATED EDITION

Published by: 2017-04-13 / 2017-04-13 / 144 pages
IEC 60335-2-42:2002+A1:2008+A2:2017 deals with the safety of electrically operated commercial forced convection ovens, steam cookers, steam-convection ovens and, exclusive of any other use, steam generators, not intended for household use. The rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances. Appliances within the scope of this standard are typically used in restaurants, canteens, hospitals and 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. This consolidated version consists of the fifth edition (2002), its amendment 1 (2008) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.

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IEC 61954 Ed. 2.2 b:2017

Static var compensators (SVC) – Testing of thyristor valves CONSOLIDATED EDITION

Published by: 2017-04-12 / 2017-04-12 / 182 pages
IEC 61954:2011+A1:2013+A2:2017 defines type, production and optional tests on thyristor valves used in thyristor controlled reactors (TCR), thyristor switched reactors (TSR) and thyristor switched capacitors (TSC) forming part of static VAR compensators (SVC) for power system applications. The requirements of the standard apply both to single valve units (one phase) and to multiple valve units (several phases). This edition includes the following significant technical changes with respect to the previous edition:
a) Definitions of terms "thyristor level", "valve section", "valve base electronics" and "redundant thyristor levels" have been changed for clarification;
b) Conditions of testing thyristor valve sections instead of a complete thyristor valve have been defined;
c) The requirement has been added that if, following a type test, one thyristor level has become short-circuited, then the failed level shall be restored and this type test repeated;
d) The time period of increasing the initial test voltage from 50 % to 100 % during type a.c. dielectric tests on TSC, TCR or TSR valves has been set equal to approximately 10 s;
e) The duration of test voltage Uts2 during type a.c.-d.c. dielectric tests between TSC valve terminals and earth as well as the duration of test voltage Utvv2 during dielectric tests between TSC valves (for MVU only) has been changed from 30 min to 3 h;
f) The reference on the number of pulses per minute of the periodic partial discharge recorded during a.c.-d.c. dielectric tests on TSC valves and exceeding the permissible level has been deleted. This consolidated version consists of the second edition (2011), its amendment 1 (2013) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.

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IEC 60598-2-4 Ed. 3.0 en:2017

Luminaires – Part 2-4: Particular requirements – Portable general purpose luminaires

Published by: 2017-04-21 / 2017-04-21 / 21 pages
NEW!IEC 60598-2-4:2017 is available as IEC 60598-2-4:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60598-2-4:2017 specifies requirements for portable general purpose luminaires for indoor and/or outdoor use (e.g. garden use), other than handlamps, designed to be used with or incorporating electrical light sources on supply voltages not exceeding 250 V.
This third edition cancels and replaces the second edition published in 1997. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– alignment with IEC 60598-1;
– modification of the scope, classification and requirements to cover portable luminaires for both indoor and outdoor applications, by introducing the requirements already listed in IEC 60598-2-7;
NOTE  In this edition of IEC 60598-2-4 all requirements listed in IEC 60598-2-7 have been incorporated. As a consequence, IEC 60598-2-7 will be withdrawn after publication of this standard.
– modification of the scope to cover all electrical light sources (it was previously limited to tungsten filament, tubular fluorescent and other discharge lamps);
– introduction of the symbol for luminaires which are other than ordinary, but suitable for indoor applications only (e.g. luminaire using PVC cable);
– modification in the detail of test to clarify that the stability test on an inclined plane (see 4.7.3) shall be carried out with the light source(s) in place;
– modification of the minimum degree of protection against dust and moisture for portable luminaires for outdoor use from IPX3 to IPX4 (see 4.5.2); as a consequence, the requirements for cable entry position, as given in IEC 60598-2-7:1982, 7.6.3 were deleted as they are covered by IPX4;
– modification of the requirements for the acceptance criteria of plug and socket outlet;
– modification of the IP test requiring the most unfavourable of the overturned positions to cover all classes (and not only class II luminaires as in 7.13.1 of IEC 60598-2-7:1982).

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IEC 60695-2-10 Ed. 2.0 b:2013

Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test procedure

Published by: 2013-04-09 / 2013-04-09 / 42 pages
IEC 60695 2 10 2013 specifies the glow wire apparatus and common test procedure to simulate the effects of thermal stresses which may be produced by heat sources such as glowing elements or overloaded resistors for short periods in order to assess the fire hazard by a simulation technique The test procedure described in this standard is a common test procedure intended for the small scale tests in which a standardized electrically heated wire is used as a source of ignition It is a common part of the test procedures applied to end products and to solid electrical insulating materials or other solid combustible materials A detailed description of each particular test procedure is given in the respective standards IEC 60695 2 11 IEC 60695 2 12 and IEC 60695 2 13 This second edition of IEC 60695 2 10 cancels and replaces the first edition of IEC 60695 2 10 published in 2000 This edition constitutes a technical revision The main changes with respect to the previous edition are as follows br A table of contents has been added br The introduction has been updated to align with other TC89 documents br The scope has been clarified to align with other documents in the IEC 60695 2 Glow wire series br Terms and definitions relevant to this document have been added br Clause 4 has been deleted and the remaining clauses renumbered br The description of the power supply has been updated with additional details see 4 1 br The temperature measuring system see 4 3 and the description of the specified layer has been updated see 4 4 br New guidance has been introduced to assist in the verification of the temperature measuring system see 5 2 and Annex C br The common test produced has been clarified see Clause 7 br The tolerances have been changed for the dimensions of the glow wire see Figure 1 br New guidance on flaming observations has been added see Annex B It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO IEC Guide 51 This standard is to be used in conjunction with IEC 60695 2 11 IEC 60695 2 12 and IEC 60695 2 13 Keywords Glowing hot wire Glow wire.

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IEC/TS 62916 Ed. 1.0 en:2017

Photovoltaic modules – Bypass diode electrostatic discharge susceptibility testing

Published by: 2017-04-10 / 2017-04-10 / 13 pages
IEC TS 62916:2017(E) describes a discrete component bypass diode electrostatic discharge (ESD) immunity test and data analysis method. The test method described subjects a bypass diode to a progressive ESD stress test and the analysis method provides a means for analyzing and extrapolating the resulting failures using the two-parameter Weibull distribution function. It is the object of this document to establish a common and reproducible test method for determining diode surge voltage tolerance consistent with an ESD event during the manufacturing, packaging, transportation or installation processes of PV modules.

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IEC/TR 63079 Ed. 1.0 en:2017

Code of practice for hearing-loop systems (HLS)

Published by: 2017-04-10 / 2017-04-10 / 103 pages
IEC TR 63079:2017(E) gives recommendations for and guidance on the design, planning, installation, testing, operation and maintenance of a hearing-loop system (HLS) intended for communicating speech, music and/or other signals. It is mainly concerned with HLS for hearing enhancement, in which the signals are communicated to users of hearing aids equipped with magnetic pick-up coils.
This document does not apply to induction-loop systems which use a carrier frequency, nor to other systems for hearing enhancement purposes which do not use magnetic induction.

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IEC 60704-2-3 Ed. 3.0 b:2017

Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 2-3: Particular requirements for dishwashers

Published by: 2017-04-10 / 2017-04-10 / 25 pages
IEC 60704-2-3:2017 is intended to be used in conjunction with the third edition (2010) of IEC 60704-1, Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 1: General requirements.
The relevant text of Part 1 as amended by this standard establishes the test code for dishwashers.
This edition includes the following significant technical changes with respect to the previous edition:
a) it doesn’t contain the description of an appropriate test enclosure because the test enclosure has been incorporated in  IEC 60704-1:2010, Annex B;
b) the values of standard deviations of sound power levels determined according to this part are given in Clause 1;
c) to prevent an appliance being programmed to recognize the test cycles, and reacting specifically to them, in this new edition an artificial soil is used in addition to the unsoiled load and the rinse aid container has to be filled. This artificial soil successive may build up a film on the load. Therefore, detergent also has to be used. An initial test has shown that no foam is to be expected.
This publication is to be read in conjunction with IEC 60704-1:2010.

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