This document specifies the characteristics of electrical cables for use in the on-board electrical systems of aircraft at operating temperatures between -55 °C and 260 °C for cross sections equal to and greater than 5 mm2.

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

This part of IEC 62271 applies to AC contactors and/or contactor-based controllers and motorstarters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 kV and up to and including 24 kV. This document also includes additional requirements for outdoor installations where the equipment is housed in an additional protective enclosure. It is applicable only to three-pole devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. Contactors and/or starters dealt with in this document typically do not have adequate short-circuit interruption capability. In this context, this document gives requirements for: - starters associated with separate short-circuit protective devices; - controllers - contactors combined with short-circuit protective devices (SCPD). Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads are covered in this document. This document is also applicable to the operating devices of contactors and to their auxiliary equipment. Motor-starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with. Motor-starter types included are: - direct-on-line starters; - reversing starters; - two-direction starters; - reduced kVA (voltage) starters; - auto-transformer starters; - rheostatic starters; - reactor starters. This document does not apply to: - circuit-breaker-based motor-starters; - single-pole operation of multi-pole contactors or starters; - two-step auto-transformer starters designed for continuous operation in the starting position; - unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases; - equipment designed not only for starting, but also for adjustment of speed; - liquid starters and those of the "liquid-vapour" type; - semiconductor contactors and starters making use of semiconductor contactors in the main circuit; - rheostatic stator starters; - contactors or starters designed for special applications. This document does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist. NOTE 1 Thermal electrical relays are covered by IEC 60255-149. NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644. NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 62271-200. NOTE 4 Disconnectors and earthing switches are covered by IEC 62271-102. NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 62271-103. The object of this document is to state: a) the characteristics of contactors and starters and associated equipment; b) the conditions with which contactors or starters comply with reference to: 1) their operation and behaviour, 2) their dielectric properties, 3) the degrees of protection provided by their enclosures, where applicable, 4) their construction, 5) for controllers, interactions between the various components, for example SCPD co-ordination; c) the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests; d) the information to be given with the equipment or in the manufacturer's literature.

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

This document applies to cord switches (mechanical or electronic) for appliances actuated by
hand, by foot or by other human activity, to operate or control electrical appliances and other
equipment for household or similar purposes with a rated voltage not exceeding 250 V and a
rated current not exceeding 16 A.
Throughout this document, the word "appliance" means "appliance or equipment".
These switches are intended to be operated by a person, via an actuating member or by
actuating a sensing unit. The actuating member or sensing unit can be integral or arranged
separately from the switch. The transmission of a signal between the actuating member or
sensing unit and the switch can be made either physically or electrically (for example,
electrical, optical, acoustic or thermal).
Switches which incorporate additional control functions governed by the switch function are
within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or a part of an appliance
such as a door.
NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or
microdisconnection.
NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For switches used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for switches.

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

This Part of IEC 61058 applies to change-over selectors (mechanical or electronic) for
appliances actuated by hand, by foot or by other human activity, to operate or control
electrical appliances and other equipment for household or similar purposes with a rated
voltage not exceeding 480 V and a rated current not exceeding 63 A.
These change-over selectors are intended to be operated by a person, via an actuating
member or by actuating a sensing unit. The actuating member or sensing unit can be integral
with or arranged separately, either physically or electrically, from the switch, and can involve
transmission of a signal, for example electrical, optical, acoustic or thermal, between the
actuating member or sensing unit and the switch.
Change-over selectors which incorporate additional control functions governed by the switch
function are within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or a part of an appliance or
equipment such as a door.
NOTE 1 Electronic change-over selectors can be combined with mechanical change-over selectors giving full
disconnection or micro-disconnection.
NOTE 2 Electronic change-over selectors without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For change-over selectors used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for change-over selectors.
NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".
This document applies to change-over selectors intended to be incorporated in, on, or with an
appliance.
This document also applies to change-over selectors incorporating electronic devices.

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

This European Standard specifies the composition, property requirements including electrical properties, and tolerances on dimensions and form for copper profiles and profiled wire for electrical purposes, which would fit within a circumscribing circle of maximum 180 mm diameter.
The sampling procedures, the test methods for verification of conformity to the requirements of this standard, and the delivery conditions are also specified.

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

This part of IEC 61439 defines the specific requirements for the power switchgear and
controlgear assembly (abbreviated ‘PSC-assembly’ throughout this document see 3.1.101) as
follows:
• assemblies for which the rated voltage does not exceed 1 000 V AC or 1 500 V DC;
• assemblies designed for a nominal frequency of the incoming supply or supplies not
exceeding 1 000 Hz;
NOTE 1 Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5
to take into account additional constraints to insulation coordination.
• assemblies intended for indoor and outdoor applications;
• stationary or movable assemblies with or without enclosures;
• assemblies intended for use in connection with the generation, transmission, distribution
and conversion of electrical energy, and for the control of equipment consuming electrical
energy and for associated data processing;
• assemblies designed for use under special service conditions, for example in ships and in
rail vehicles, provided that the other relevant specific requirements are complied with;
NOTE 2 Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.
This document also applies to assemblies for use in photovoltaic installations, designated as
photovoltaic assemblies (PVA). The particular characteristics, specific service conditions and
the requirements for PVA’s are included in Annexes DD, EE and FF.
This document provides supplementary requirements for PSC-assemblies intended for use as
part of the electrical equipment of machines and can be applied in addition to the
requirements given in IEC 60204-1.
This document applies to all assemblies whether they are designed, manufactured and
verified on a one-off basis or fully standardised and manufactured in quantity.
The manufacture and/or assembly can be carried out by an entity other than the original
manufacturer (see 3.10.1 of IEC 61439-1:2020).
This document does not apply to individual devices, for example, circuit-breakers, fuse
switches and self-contained components such as, motor starters, power electronic converter
systems and equipment (PECS), switch mode power supplies (SMPS), uninterruptable power
supplies (UPS), basic drive modules (BDM), complete drive modules (CDM), adjustable speed
power drives systems (PDS), stand-alone energy storage systems (battery and capacitor
systems), and other electronic equipment which comply with their relevant product standards.
This document describes their integration into a PSC-assembly or an empty enclosure used
as a part of a PSC-assembly.
For some applications, such as, explosive atmospheres, functional safety, there may be a
need to comply with the requirements of other standards or legislation in addition to those
specified in the IEC 61439 series.
This document does not apply to the specific types of assemblies covered by other parts of
IEC 61439. For assemblies not covered by other parts, this part applies.
Unless local legislation details additional requirements, equipment within the scope of this
document, which complies with this document, is deemed to meet essential safety
requirements. This includes fully verified specifier options, for example user choice of
protection against accidental contact with hazardous live parts of IPXXB or IP3XD. Where
special requirements are agreed between the user and manufacturer, that are not fully
specified within this document, for example, (i) part of the assembly is outside the scope of
this document, (ii) exceptional vibration is present at the place of installation, (iii) exceptional
voltage variations occur in service, or (iv) possible adverse effects from sonic or ultrasonic
sources, a risk assessment and/or additional or more severe verifications may be required to
demonstrate that the essential safety requirements have been fulfilled.

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

This document applies to independently mounted switches for appliances (mechanical or
electronic) actuated by hand, by foot or by other human activity, to operate or control
electrical appliances and other equipment for household or similar purposes with a rated
voltage not exceeding 480 V and a rated current not exceeding 63 A.
These switches are intended to be operated by a person, via an actuating member or by
actuating a sensing unit. The actuating member or sensing unit can be integral with or
arranged separately, either physically or electrically, from the switch and involve transmission
of a signal, for example, electrical, optical, acoustic or thermal, between the actuating
member or sensing unit and the switch.
Switches which incorporate additional control functions governed by the switch function are
within the scope of this document.
This document also covers the indirect actuation of the switch when the operation of the
actuating member or sensing unit is provided by a remote control or by a part of an appliance
or equipment, such as a door.
NOTE 1 Electronic switches can be combined with mechanical switches giving full disconnection or microdisconnection.
NOTE 2 Electronic switches without a mechanical switch in the supply circuit provide only electronic
disconnection. Therefore, the circuit on the load side is always considered to be live.
NOTE 3 For switches used in tropical climates, additional requirements can apply.
NOTE 4 Attention is drawn to the fact that the standards for appliances can contain additional or alternative
requirements for switches.
NOTE 5 Throughout this document, the word "appliance" means "appliance or equipment".

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

This part of IEC 62325 specifies a UML package for the electricity balancing business process
and its associated document contextual models, assembly models and XML schemas for use
within the European style electricity markets.
This part of IEC 62325 is based on the European style market contextual model
(IEC 62325-351). The business process covered by this part of IEC 62325 is described in
Clause 5.
The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been
contextualised into aggregated business information entities (ABIEs) to satisfy the requirements
of the European style market publication business process.

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

This part of IEC 61970 specifies a standard interface for exchanging dynamic model information
needed to support the analysis of the steady state stability (small-signal stability) and/or
transient stability of a power system or parts of it. The schema(s) for expressing the dynamic
model information are derived directly from the CIM, more specifically from IEC 61970-302.
The scope of this document includes only the dynamic model information that needs to be
exchanged as part of a dynamic study, namely the type, description and parameters of each
control equipment associated with a piece of power system equipment included in the steady
state solution of a complete power system network model. Therefore, this profile is dependent
upon other standard profiles for the equipment as specified in IEC 61970-452, CIM static
transmission network model profiles, the topology, the steady state hypothesis and the steadystate
solution (as specified in IEC 61970-456, Solved power system state profiles) of the power
system, which bounds the scope of the exchange. The profile information described by this
document needs to be exchanged in conjunction with IEC 61970-452 and IEC 61970-456
profiles’ information to support the data requirements of transient analysis tools. IEC 61970-456
provides a detailed description of how different profile standards can be combined to form
various types of power system network model exchanges.
This document supports the exchange of the following types of dynamic models:
• standard models: a simplified approach to exchange, where models are contained in
predefined libraries of classes interconnected in a standard manner that represent dynamic
behaviour of elements of the power system. The exchange only indicates the name of the
model along with the attributes needed to describe its behaviour.
• proprietary user-defined models: an exchange that would provide users the ability to
exchange the parameters of a model representing a vendor or user proprietary device where
an explicit description of the model is not described in this document. The connections
between the proprietary models and standard models are the same as described for the
standard models exchange. Recipient of the data exchange will need to contact the sender
for the behavioural details of the model.
This document builds on IEC 61970-302, CIM for dynamics which defines the descriptions of
the standard dynamic models, their function block diagrams, and how they are interconnected
and associated with the static network model. This type of model information is assumed to be
pre-stored by all software applications hence it is not necessary to be exchanged in real-time
or as part of a dynamics model exchange.

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

This part of IEC 61439 lays down the general definitions and service conditions, construction
requirements, technical characteristics and verification requirements for low-voltage
switchgear and controlgear assemblies.
NOTE Throughout this document, the term assembly(s) (see 3.1.1) is used for a low-voltage switchgear and
controlgear assembly(s).
For the purpose of determining assembly conformity, the requirements of the relevant part of
the IEC 61439 series, Part 2 onwards, apply together with the cited requirements of this
document. For assemblies not covered by Part 3 onward, Part 2 applies.
This document applies to assemblies only when required by the relevant assembly standard
as follows:
– assemblies for which the rated voltage does not exceed 1 000 V AC or
1 500 V DC;
– assemblies designed for a nominal frequency of the incoming supply or supplies not
exceeding 1 000 Hz;
– assemblies intended for indoor and outdoor applications;
– stationary or movable assemblies with or without an enclosure;
– assemblies intended for use in connection with the generation, transmission, distribution
and conversion of electric energy, and for the control of electrical energy consuming
equipment.
This document does not apply to individual devices and self-contained components such as
motor starters, fuse switches, power electronic converter systems and equipment (PECS),
switch mode power supplies (SMPS), uninterruptable power supplies (UPS), basic drive
modules (BDM), complete drive modules (CDM), adjustable speed power drives systems
(PDS), and other electronic equipment which comply with their relevant product standards.
This document describes the integration of devices and self-contained components into an
assembly or into an empty enclosure forming an assembly.
For some applications involving, for example, explosive atmospheres, functional safety, there
can be a need to comply with the requirements of other standards or legislation in addition to
those specified in the IEC 61439 series.

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

2021-04-14: D168/C076: Publication approved
2021-02-01: The aim of this A11 is to add Annexes ZZ & ZA to EN 60838-1:2017 & its A1 to allow citation

  • Amendment
    6 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This document is applicable to electric light sources (see Note 1) for use in automotive
applications, for example in road illumination devices and/or light signalling devices for road
vehicles.
It is especially applicable to light sources listed in UN Resolution R.E.5 and light sources subject
to other legislations.
This document specifies the technical requirements for interchangeability for example
dimensional, electrical and photometrical characteristics, and includes test methods.
For the light sources listed in this document, the data sheets are contained either in this
document or are included by reference to UN Resolution R.E.5.
Performance requirements are specified in IEC 60810, for example life, torsion strength,
resistance to vibration and shock.
The requirements for miniature light sources for supplementary purposes, not subject to
legislation, are specified in IEC 60983.
NOTE 1 The terms "lamp" and "light source" are both used in this document to mean the same product, so the two
terms are interchangeable throughout this document.
NOTE 2 In various vocabularies and standards, different terms are used for "incandescent lamp"
(IEC 60050845:
1987, 845-07-04), "discharge lamp" (IEC 60050-845:1987, 845-07-17) and "LED lamp". In this
document "filament lamp", "discharge lamp" and "LED light source" are used, however, where only "lamp" or "light
source" is written, all light sources, independent of the technology used, are meant, unless the context clearly shows
that it applies to one kind of technology only. In the UN Regulations, the word "light source" is used for the products
specified in this document.
NOTE 3 Wherever the term "device" is used, it is meant to designate equipment which is used as a luminaire. It
can for instance take the form and purpose of a headlight or signal light.

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

This part of IEC 60079, which is a Technical Specification, provides guidance for equipment for use in explosive atmospheres in environments which may include ambient temperatures below –20 °С, and additional adverse conditions, including maritime applications.
The purpose of this document is to provide recommendations to be considered for the design, manufacture and use of equipment. It is intended that this document be used for equipment operating within the environmental range specified on the certificate for the equipment.

  • Technical specification
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day

2020-12-03: This AMD will revise Annex ZZ and allow citation of EN 61800-5-1:2007 & its A1:2017

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 61800-2:2015 applies to adjustable speed electric a.c. power drive systems, which include semiconductor power conversion and the means for their control, protection, monitoring, measurement and the a.c. motors. It applies to adjustable speed electric power drive systems intended to feed a.c. motors from a BDM connected to line-to-line voltages up to and including 1 kV a.c. 50 Hz or 60 Hz and/or voltages up to and including 1,5 kV d.c. input side.
NOTE 1 Adjustable speed electric a.c. power drive systems intended to feed a.c. motors, and with rated converter input voltages above 1 000 V a.c. are covered by IEC 61800-4.
NOTE 2 Adjustable speed electric d.c. power drive systems intended to feed d.c. motors are covered by IEC 61800-1.
NOTE 3 For adjustable speed electric a.c. power drive systems having series-connected electronic power converter sections, the line-to-line voltage is the sum of the series connected input voltages.
Traction applications and electric vehicles are excluded from the scope of this standard. IEC 61800-2:2015 is intended to define the following aspects of an a.c. power drive system (PDS):
- principal parts of the PDS;
- ratings and performance;
- specifications for the environment in which the PDS is intended to be installed and operated;
- other specifications which might be applicable when specifying a complete PDS.
This standard provides minimum requirements, which may be used for the development of a specification between customer and manufacturer. This edition includes the following significant technical changes with respect to the previous edition.
a) Clause 1 (Scope) has been updated,
b) Clause 2 (Normative references) has been updated,
c) Clause 3 (Definitions) has been updated including fundamental definitions to be used across the IEC 61800 series of standards,
d) Clause 4 has been updated with respect to:
1) description of the basic topology for BDM/CDM/PDS (4.2);
2) ratings and performance (4.3 and 4.4);
3) reference to applicable standards within the IEC 61800 series with respect to EMC (IEC 61800-3), Electrical safety (IEC 61800-5-1), Functional safety (IEC 61800-5-2), Load duty aspects (IEC TR 61800-6), Communication profiles (IEC 61800-7 series) and Power interface voltage (IEC TS 61800-8) to avoid conflicting requirements (4.5, 4.6, 4.7, 4.10, 4.11, 4.12);
4) update of requirement for ECO design (4.8);
5) update of requirement for environmental evaluation (4.9);
6) implementation of requirement for explosive atmosphere (4.13).
e) Clause 5 has been updated with test requirement in order to provide a clear link between design requirement and test requirement.
f) Clause 6 has been updated to harmonize the marking and documentation requirement within the IEC 61800 series.
g) Existing Annexes A to G have been deleted and replaced with new Annexes A to C.

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

This part of IEC 61800 applies to adjustable speed electric DC power drive systems, which
include semiconductor power conversion and the means for their control, protection, monitoring,
measurement and the DC motors.
It applies to adjustable speed electric power drive systems intended to feed DC motors from a
BDM/CDM connected to line-to-line voltages up to and including 1 kV AC 50 Hz or 60 Hz and/or
voltages up to and including 1,5 kV DC input side.
NOTE 1 Adjustable speed electric AC power drive systems intended to feed AC motors are covered by
IEC 61800-2.
NOTE 2 This document can be used as a reference for adjustable speed electric power drive systems, intended to
feed DC motors from a BDM/CDM connected to line-to-line voltages up to and including 1,5 kV AC, 50 Hz or 60 Hz
and/or voltages up to and including 2,25 kV DC input side.
Traction applications and electric vehicles are excluded from the scope of this document.
This document is intended to define the following aspects of a DC power drive system (PDS):
• principal parts of the PDS;
• ratings and performance;
• specifications for the environment in which the PDS is intended to be installed and operated;
• other specifications which might be applicable when specifying a complete PDS.
This document provides minimum requirements, which may be used for the development of a
specification between customer and manufacturer.
Compliance with this document is possible only when each topic of this document is individually
specified by the customer developing specifications or by product standard committees
developing product standards.
For some aspects which are covered by specific PDS product standards in the IEC 61800 series,
this document provides a short introduction and reference to detailed requirements in these
product standards.

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

This AMD will revise Annex ZZ and allow citation of EN 62040-1:2019

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This AB will revise Annex ZZ and allow citation of EN 62477-1:20212/A1:2017

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC/TR 62471-2:2009(E) provides the basis for optical radiation safety requirements of non-laser products, serving as a guide for development of safety requirements in vertical product standards and assisting lamp system manufacturers in the interpretation of safety information provided by the lamp manufacturers. This report provides guidance on:
- requirements for optical radiation safety assessment;
- allocation of safety measures;
- labelling of products.
This technical report does not address safety requirements of intentional exposure to optical radiation from sun tanning equipment, ophthalmic instruments or other medical/cosmetic devices whose specific safety issues are addressed through appropriate standards.

  • Technical report
    45 pages
    English language
    sale 15% off

This part of IEC 60598 specifies requirements for fixed general purpose luminaires for use
with electric light sources on supply voltages not exceeding 1 000 V.

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

NEXT ACTION: HAS consultant to confirm TC successfully addressed comments after negative PUB assessment.
2020-08-12 NEXT ACTION: TC ACTION BY 2020-09-30
2020-08-12 TC to provide elements for assessment at PUB
20200325: consultant assessment missing. Document block until the document is approved by the consultant.

  • Amendment
    11 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 61558-2-6:2021 is available as IEC 61558-2-6:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-6:2021 deals with the safety of safety isolating transformers for general applications and power supply units incorporating safety isolating transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision.
- adjustment of structure and references in accordance with IEC 61558-1:2017;
- description of constructions moved in IEC 61558-1:2017;
- new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
This International Standard is to be used in conjunction with IEC 61558-1:2017.

  • Standard
    15 pages
    English language
    sale 15% off

IEC 61558-2-4:2021 is available as IEC 61558-2-4:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61558-2-4:2021 deals with the safety of isolating transformers for general applications and power supply units incorporating isolating transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adjustment of structure and references in accordance with IEC 61558-1:2017;
- description of constructions moved to IEC 61558-1:2017;
- a new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
This International Standard is to be used in conjunction with IEC 61558-1:2017.

  • Standard
    15 pages
    English language
    sale 15% off

This part of IEC 60216 specifies the calculation procedures used for deriving thermal
endurance characteristics from experimental data obtained in accordance with the instructions
of IEC 60216-1 and IEC 60216-2 [1]1, using fixed ageing temperatures and variable ageing
times.
The experimental data can be obtained using non-destructive, destructive or proof tests. Data
obtained from non-destructive or proof tests can be incomplete, in that it is possible that
measurement of times taken to reach the end-point will have been terminated at some point
after the median time but before all specimens have reached end-point.
The procedures are illustrated by worked examples, and suitable computer programs are
recommended to facilitate the calculations.

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

This document gives specific requirements for halogen free polyolefin based sheathing compounds used for halogen free communication cables with improved characteristics in the case of fire.
Compounds, described by this document, are commonly also named HFFR or HFFR-LS (halogen free, flame/fire retardant, low smoke), see also EN 50290 2 20.
It is expected to be read in conjunction with EN 50290 2 20, the product standards EN 50288 series, EN 60794 series and other applicable product standards.
Improved characteristics in the case of fire are demonstrated by specific fire tests on cables for flame/fire retardant applications (e.g. single or bunched cable fire test). Additional tests to prove the characteristics in case of fire, e.g. such as smoke emission test, might also be part of the dedicated product standard or specification.
This document describes the compound types as given in Table 1.
Table 1 — Sheathing compounds
Compound grades   Max. operating temperature   Comment
Type 1   70°C   thermoplastic standard
Type 2   90°C   thermoplastic, higher temperature
Type 3   90°C   crosslinked, higher temperature

  • Standard
    9 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

IEC 62271-103:2021 is applicable to three-phase, alternating current switches and switch-disconnectors for their switching function, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 162/3 Hz up to and including 60 Hz. This document is also applicable to single-pole switches used on three-phase systems. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- this document has been aligned with IEC 62271-1:2017 and IEC 62271-102:2018;
- clarifications regarding the behaviour of the switch during breaking tests regarding current interruption and restrikes have been added;
- conditions of the switch after making and breaking tests have been clarified;
- a new informative Annex B intended to provide guidance for the calculation of Ief1 and Ief2 has been added;
- new rules for the combination of 50 Hz and 60 Hz switching tests have been defined and a new table (Table 7) has been added;
- tests with specified TRV have been modified to be in accordance with the practice described in IEC 62271-100;
- the behaviour of the switch during breaking tests has been clarified and boundaries for restrike allowance have been defined;
- explanations for short-circuit making tests have been added;
- vacuum integrity check after mechanical operations has been defined;
- all test voltages for single-phase capacitive testing have been grouped under 7.101.7.3.2 and have been confirmed by simulation and calculation.

  • Standard
    179 pages
    English and French language
    sale 15% off

This part of IEC 61968 specifies profiles that can be used to exchange Network Models in a
Utility or between a Utility and external applications to the utility. This document provides a list
of profiles which allow to model balanced and unbalanced distribution networks in order to
conduct network analysis (Power flow calculation). Therefore, it leverages already existing
profiles (IEC 61970-45x based on IEC 61970-301 (CIM base) or profiles based on
IEC 6196811
CIM extension for Distribution). This document reuses some profiles without any
change, or eventually extends them or restricts them. Moreover, it proposes other profiles to
reflect Distribution needs.
Use of CIM in Distribution is not a new topic. Several documents can be of interest
[13][17][18][19][20]. This document includes informative parts, as CIM model extensions, which
could be integrated in future versions of the IEC CIM Model. These extensions have been used
by some utilities for utility internal information exchange use cases and to support information
exchanges between different market participants like Transmisstion System Operators (TSO),
Distributed System Operators (DSO), Distributed Network Operators (DNO) and Significant Grid
Users (SGU) including generators and industry (see Annex J for example).

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

This document gives specific requirements for halogen free polyolefin based sheathing compounds used for halogen free communication cables with improved characteristics in the case of fire.
Compounds, described by this document, are commonly also named HFFR or HFFR-LS (halogen free, flame/fire retardant, low smoke), see also EN 50290 2 20.
It is expected to be read in conjunction with EN 50290 2 20, the product standards EN 50288 series, EN 60794 series and other applicable product standards.
Improved characteristics in the case of fire are demonstrated by specific fire tests on cables for flame/fire retardant applications (e.g. single or bunched cable fire test). Additional tests to prove the characteristics in case of fire, e.g. such as smoke emission test, might also be part of the dedicated product standard or specification.
This document describes the compound types as given in Table 1.
Table 1 — Sheathing compounds
Compound grades   Max. operating temperature   Comment
Type 1   70°C   thermoplastic standard
Type 2   90°C   thermoplastic, higher temperature
Type 3   90°C   crosslinked, higher temperature

  • Standard
    9 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

IEC 60364-7-710:2021 applies to electrical installations in medical locations so as to provide safety of patients and medical staff. These requirements refer to:
– hospitals and clinics or equivalent institutions (including equivalent transportable and mobile locations);
which, subject to assessment (710.30), can also include:
– sanatoriums and health clinics;
– dedicated locations in homes for senior citizens and aged care homes, where patients receive medical care;
– medical centres, outpatients' clinics and departments, casualty wards;
– other outpatients' institutions (industrial, sports and others);
– medical and dental practices;
– dedicated medical rooms in the workplace;
– other locations where medical electrical equipment is used;
– veterinary clinics;
– rooms in existing installations where a change of utilization for medical applications occur.
This list is not exhaustive.
The requirements of this document do not apply to ME equipment or ME systems.
This edition includes the following significant technical changes with respect to the previous edition:
a) the scope provides improved information to the application of this document;
b) some terms and definitions have been revised;
c) the validity of the respective parts of the IEC 60364 series has been verified and clauses updated;
d) Clause 710.30 has been extended;
e) Clause 710.41 has been updated;
f) Clause 710.413 has been renumbered as Clause 710.411;
g) in 710.411 insulation fault location systems have been added;
h) Clause 710.421 has been extended to include arc fault detection devices;
i) Clause 710.44 has been added;
j) Clause 710.51 has been updated and now covers distribution boards and electrical operating areas;
k) Clause 710.514, has been extended and includes separate subclauses on diagrams, documentation and operating instructions;
l) Subclauses 710.531 to 710.537 have been added;
m) Clause 710.55 has been updated;
n) Clause 710.56 has been added;
o) Clause 710.6, Verification, has been revised;
p) Annex A was deleted, and the contents integrated into 710.560.4;
q) former Annex B is now Annex A and has been updated;
r) an informative Annex B on guidance concerning electromagnetic interferences (EMI) in installations of buildings has been added

  • Standard
    83 pages
    English and French language
    sale 15% off

A new overhead line is defined as the new construction of the totality of all conductors, their supports together with foundations, earthing grid, insulators, accessories and fittings used for the overground transport of electrical energy between two points A and B.

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

IEC 62430:2019 describes principles, specifies requirements and provides guidance for organizations intending to integrate environmental aspects into the design and development in order to minimize the adverse environmental impacts of their products.
This document applies to processes on how ECD (environmentally conscious design) are integrated into the design and development. This document applies to any organization, regardless of its size, type or sector.
This document does not provide requirements for assessing the conformity of individual products.
This horizontal standard is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard will not apply unless specifically referred to or included in the relevant publications.
IEC 62430:2019 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Scope is extended from electrotechnical product and systems to all products including services.
b) As a consequence of the scope expansion, non-electrotechnical products, services in particular, are taken into account to modify requirements.
c) Clause 6 is added as a guidance.

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

IEC 63093-2:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of pot-cores made of ferrite, and the dimensional limits for coil formers to be used with them, as well as the effective parameter values to be used in calculations involving them. It also gives guidelines on the allowable limits of surface irregularities applicable to pot-cores in accordance with the relevant generic specification.
The selection of core sizes and shapes for this document is based on the philosophy of including those sizes which are industrial standards, either by inclusion in a national standard, or by broad-based use in industry. See IEC 62317-1 for more detail concerning the philosophy of selecting core sizes to be included.
The general considerations upon which the design of this range of cores is based are given in Annex A.
This first edition cancels and replaces the first edition of IEC 62317-2 published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition of IEC 62317-2:
a) addition of the limits of surface irregularities;
b) Table 4 and Table 5 are updated in accordance with IEC 60205:2016.

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

IEC 63093-3:2020 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of half pot-cores made of ferrite, intended to be used in inductive proximity switches. Half pot-cores for inductive proximity switches are also called PS-cores.
The selection of core sizes and shapes for this document is based on the philosophy of including those sizes and shapes which are industrial standards, either by inclusion in a national standard, or by broad-based use in industry.
This part of IEC 63093 can also be considered as a sectional specification useful in the negotiations between ferrite core manufacturers and customers about surface irregularities. It provides guidelines on the allowable limits of surface irregularities applicable to PS-cores in accordance with the relevant generic specification.
This first edition cancels and replaces the first edition of IEC 62323, published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition of IEC 62323:
a) addition of the limits surface irregularities.

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

IEC 61333:2019 specifies marking locations and a coding system of marking on ferrite cores. An alphanumerical marking printed or attached to cores reduces the risk of incorrect assembly, mixing of materials and/or mixing of gapped cores on an assembly line. The markings of the inductance factor AL value or of the gap length are especially important to avoid this kind of problem, and their coding system is specified in this document.
This edition includes the following significant technical changes with respect to the previous edition:
a) the title of the document was changed;
b) the scope of this document was expanded;
c) the marking position instructions for ring cores, planar cores, RM-cores, PQ-cores and pot-cores were added in Clause 4 with a few additional descriptions;
d) the four-digit-maximum limit of material identification code has been deleted in 5.2;
e) in Table 1, the unit of AL has been changed from "nH" to "nH/N2".

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

This part of IEC 60071 applies to three-phase AC systems having a highest voltage for
equipment above 1 kV. It specifies the procedure for the selection of the rated withstand
voltages for the phase-to-earth, phase-to-phase and longitudinal insulation of the equipment
and the installations of these systems. It also gives the lists of the standard withstand
voltages from which the rated withstand voltages are selected.
This document describes that the selected withstand voltages are associated with the highest
voltage for equipment. This association is for insulation co-ordination purposes only. The
requirements for human safety are not covered by this document.
Although the principles of this document also apply to transmission line insulation, the values
of their withstand voltages can be different from the standard rated withstand voltages.
The apparatus committees are responsible for specifying the rated withstand voltages and the
test procedures suitable for the relevant equipment taking into consideration the
recommendations of this document.
NOTE In IEC 60071-2, all rules for insulation co-ordination given in this document are justified in detail, in
particular the association of the standard rated withstand voltages with the highest voltage for equipment. When
more than one set of standard rated withstand voltages is associated with the same highest voltage for equipment,
guidance is provided for the selection of the most suitable set.
This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal standards in the preparation of its publications. The contents of this horizontal
standard will not apply unless specifically referred to or included in the relevant publications.

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

This part of IEC 62024 specifies the measuring methods of the rated direct current limits for
small inductors.
Standardized measuring methods for the determination of ratings enable users to accurately
compare the current ratings given in various manufacturers’ data books.
This document is applicable to leaded and surface mount inductors with dimensions according
to IEC 62025-1 and generally with rated current less than 22 A, although inductors with rated
current greater than 22 A are available that fall within the dimension restrictions of this
document (no larger than a 12 mm × 12 mm footprint approximately). These inductors are
typically used in DC-to-DC converters built on PCBs, for electric and telecommunication
equipment, and small size switching power supply units.
The measuring methods are defined by the saturation and temperature rise limitations
induced solely by direct current.

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

IEC 60076-22-6:2021 covers the electric fans used in the cooling circuits of power transformers and reactors. It applies to electric fans mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to all the equipment.
The electric fans concerned by this document are of the axially operating type and are for use on liquid to air coolers and for blowing out radiators.
This document also outlines the operation requirements specific to each equipment as well as the preferred dimensions relevant for interchangeability and uniform fan assembly and the type and routine tests to be performed.

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

This part of IEC 61810, with functional and safety aspects, applies to electromechanical
elementary relays (non-specified time all-or-nothing relays) with high capability requirements
like breaking or short circuit capabilities and similar for incorporation into low-voltage
equipment. These relays may have a specific design to extinguish the electric arc between
contacts (e.g. by magnetic blow-out), or use an insulation coordination not covered by
IEC 61810-1 (e.g. by gas filled contact chambers), or require safety assessments not covered
by IEC 61810-1 (e.g. for higher loads).
It defines additional requirements for high-capacity relays with generic performance intended
for use in applications in smart grids, electric vehicles and other applications where, for
example, battery charge/discharge switching is used, such as:
• electrical energy storage (EES) systems,
• solar photovoltaic energy systems,
• electric road vehicles (EV) and electric industrial trucks,
• power electronic systems and equipment,
• secondary cells and batteries,
• road vehicles.
Compliance with the requirements of this standard is verified by the type tests indicated.

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

This part of IEC 62025 specifies a test method for the non-electrical characteristics of the
surface mounted device (SMD) inductors to be used for electronic and telecommunication
equipment. The object of this part of this document is to define methods for measuring
mechanical performance only. As the reliability performances and specifications relative to
non-electrical performances are defined in IEC 62211, detailed measuring methods for
mechanical performance of reliability testing are defined in this document.

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

IEC 60076-22-5:2021 covers electric pumps used in the cooling circuits of power transformers and reactors. It applies to electric pumps mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation.
It outlines the operation requirements for the electrical and hydraulic performance, mechanical design, routine testing and type testing. Additionally, performance and dimensions of preferred sizes of pump sets are specified in informative annexes.
The pumps covered in this document are rotodynamic pumps driven by a squirrel cage induction motor that is immersed in the insulating liquid.
Pump sets conforming to this document can be of in-line or end suction design.

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

Is intended for guidance in estimating the permissible values for temperature and temperature rise of component parts of electrical equipment carrying current under steady state conditions.[
]The present report is intended to supply:[
]- general data on the structure of electric contacts and the calculation of their ohmic resistance;[
]- the basic ageing mechanisms of contacts;[
]- the calculation of the temperature rise of contacts and connection terminals;[
]- the maximum 'permissible' temperature and temperature rise for various components, in particular the contacts, the connection terminals and the conductors connected to them;[
]- the general procedure to be followed by product committees for specifying the permissible temperature and temperature rise.

  • Technical report
    59 pages
    English language
    sale 10% off
    e-Library read for
    1 day

NEXT ACTION: BT approved publication with Annexes ZZ and ZA
2020-07-30 NEXT ACTION: CCMC ACTION BY 2020-09-30
2020-03-05 second assessment refused
2020-03-05: assessment negative, document blocked until such a time as the assessment can be resolved.
2020-01-31 PeC: Annex ZA was sent for assessment, to be added to the standard

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

This part of IEC 60947 series specifies requirements for three-position enabling switches.
These switches are used as components of enabling devices to provide signals that,
a) when activated, allow machine operation to be initiated by a separate start control, and
b) when de-activated,
– initiate a stop function, and
– prevent initiation of machine operation.
NOTE 1 The enabling control function is described in 9.2.3.9 of IEC 60204-1:2016 but the application of threeposition
enabling switches is not limited to a component of the enabling device described in IEC 60204-1.
NOTE 2 This document does not deal with enabling devices.
These switches are intended to be connected to circuits which rated voltage does not exceed
250 V AC 50 Hz/60 Hz or 300 V DC.
EXAMPLE Devices incorporating three-position enabling switches are:
– push-button enabling devices;
– grip actuated enabling devices;
– foot actuated enabling devices.
See Annex A for more typical examples.
This document does not apply to:
– three-position enabling switches for non-electrical control circuits, for example hydraulic,
pneumatic;
– enabling switches without three-position mechanism;
– emergency stop devices (see IEC 60947-5-5).

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

This European Standard describes a process to demonstrate compatibility between Rolling Stock (RST) and Train Detection Systems (TDS) for specific routes. It references the methods of measurement of interference currents and magnetic fields, the methods of measurement of the susceptibility of train detection systems and the characterization of traction power supplies. The process described in this standard is equally applicable to mainline, lightrail and metro type railways.
The basic parameters of compatibility for mainline railways are covered by the ERA Interface document (ERA/ERTMS/033281).
It should be noted that the demonstration of compatibility between the rolling stock and infrastructure with respect to physical dimensions is not detailed in this standard.
Under the Interoperability Directive, two stages of compatibility are defined. The first stage is for authorization for putting into service against generic limits, and the second stage - for putting into use, when specific limits for compatibility with TDS are addressed which are outside the general limits or non interoperable TDS are installed on the line over which the RST will run.
Compatibility requirements for non-mainline or isolated light rail/metro type lines are addressed in one stage of authorization.
This European Standard is not generally applicable to those combinations of rolling stock, traction power supply and train detection system which were accepted as compatible prior to the issue of this European Standard. However, as far as is reasonably practicable, this European Standard may be applied to modifications of rolling stock, traction power supply or train detection systems which may affect compatibility.

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