IEC/SC 17D - IEC_SC_17D

IEC 61439-1:2011 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies. This standard cannot be used alone to specify an ASSEMBLY or used for a purpose of determining conformity. ASSEMBLIES shall comply with the relevant part of the IEC 61439 series; Parts 2 onwards. This standard applies to low-voltage switchgear and controlgear assemblies (ASSEMBLIES) only when required by the relevant ASSEMBLY standard as follows: - ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c.; - stationary or movable ASSEMBLIES with or without enclosure; - ASSEMBLIES intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment; - 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; - ASSEMBLIES designed for electrical equipment of machines provided that the other relevant specific requirements are complied with. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This second edition includes the following significant technical changes with respect to the last edition of IEC 61439-1: - revision of service conditions in Clause 7; - numerous changes regarding verification methods in Clause 10; - modification of routine verification in respect of clearances and creepage distances (see 11.3); - adaption of the tables in Annex C and Annex D to the revised requirements and verification methods; - revision of the EMC requirements in Annex J; - shifting of tables from Annex H to new Annex N; - new Annex O with guidance on temperature rise verification; - new Annex P with a verification method for short-circuit withstand strength (integration of the content of IEC/TR 61117); - update of normative references; - general editorial review.

IEC 61439-2:2011 defines the specific requirements of power switchgear and controlgear assemblies (PSC-ASSEMBLIES) as follows: - ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c.; - stationary or movable ASSEMBLIES with or without enclosure; - ASSEMBLIES intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment; - 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; - ASSEMBLIES designed for electrical equipment of machines. Supplementary requirements for ASSEMBLIES forming part of a machine are covered by the IEC 60204 series. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This second edition includes the following significant technical changes with respect to the last edition of IEC 61439-2: - clarification of the scope; - revision of requirements for withdrawable and removable parts; - revision of mechanical impact test (10.2.6); - extension of Table 101; - review of Table BB.1 to reflect modified requirements and verifications; - general editorial review. This publication is to be read in conjunction with IEC 61439-1:2009.

IEC 62208:2011 applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard specifies general definitions, classifications, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies (e.g. in accordance with the IEC 61439 series), the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c., and suitable for general use for either indoor or outdoor applications. This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision and includes the following significant technical changes with respect to the last edition: - consideration of the restructured series of standards IEC 61439; - alignment of test procedures with the newest relevant standards.

This standard applies to low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding AC 1 000 V or DC 1 500 V. It sets out the requirements for the provision of additional features to provide protection against electric shock from direct contact with hazardous live parts only for skilled and instructed persons when they are required to manually actuate devices within the assembly and where a level of protection for the operating face of not less than IPXXB cannot be achieved. These devices are those only accessible via a door or cover requiring a key or tool to open it or in an assembly located in an area set apart and where the access to that area is restricted solely to skilled or instructed persons. This standard does not apply to – manually operated devices and their locations where access is available to ordinary persons, – low-voltage switchgear and controlgear assemblies where the operating voltage does not exceed AC 50 V or DC 120 V and there is protective separation, in accordance with EN 61140, between these circuits and any other circuits, NOTE Voltages generated by means of auto-transformers, potentiometers, semiconductor components etc. do NOT meet these requirements. – low-voltage switchgear and controlgear assemblies where protection of persons is provided by limitation of steady-state touch current or charge in accordance with EN 61140.

IEC 61439-5:2010 gives specific requirements for public electricity network distribution assemblies (PENDAs), which are stationary assemblies verified by verification tests, as defined in this standard. These ASSEMBLIES are used for the distribution of electrical energy in three-phase systems (see Figure 101 for a typical distribution network). Open type ASSEMBLIES are not covered by this standard. This first edition of IEC 61439-5 cancels and replaces the second edition of IEC 60439-5 (2006), and constitutes a technical revision. This edition of IEC 61439-5 includes the following significant technical changes with respect to the latest edition of IEC 60439-5: - alignment on IEC 61439-1 regarding the structure and technical content, as applicable; - introduction of new verifications, accordingly; - harmonisation of the requirements of substation cable distribution boards and cable distribution cabinets, thereby eliminating the need to identify and define two catagories of assembly; - simpler standard as a result of a reduction in the number of assembly types defined and the acronyms used to identify the different assemblies.

IEC 61439-2:2009 standard defines the specific requirements of power switchgear and controlgear assemblies (PSC-ASSEMBLIES), the rated voltage of which does not exceed 1000 V a.c. or 1500 V d.c. This standard is to be read in conjunction with IEC 61439-1. This publication is to be read in conjunction with IEC 61439-1:2009.

IEC 61439-1:2009 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies. This standard applies to low-voltage switchgear and controlgear assemblies (ASSEMBLIES) only when required by the relevant ASSEMBLY standard. This first edition of IEC 61439-1 standard cancels and replaces the fourth edition of IEC 60439-1:1999. Significant technical changes with respect to the last edition of IEC 60439-1. IEC 61439-1 is a pure 'general rules' standard to be referred to by subsidiary product parts of the IEC 61439 series; the product standard replacing IEC 60439-1 is IEC 61439-2; the discrimination between type-tested assemblies (TTA) and partially type-tested assemblies (PTTA) is eliminated by the verification approach; three different but equivalent types of verification of requirements are introduced: verification by testing, verification by calculation/measurement, or verification by satisfying design rules; the requirements regarding temperature rise have been clarified; the rated diversity factor (RDF) is covered in more detail; requirements from the standard for empty enclosures for assemblies (IEC 62208) have been incorporated; the whole structure of the standard is aligned with its new function as 'general rules' standard. However, when a dated reference to IEC 60439-1 is made in another Part of the IEC 60439 series of assembly standards not yet transferred into the new IEC 61439 series, the superseded IEC 60439-1 still applies.

This standard gives supplementary requirements for substation cable distribution boards (SCDBs) and cable distribution cabinets (CDCs), which are stationary, type-tested assemblies (TTA). They are used for the distribution of electrical energy in three-phase systems. Open-type ASSEMBLY are not covered by this standard.

Initially handled by CLC/TC 17D (dormant) * Superseded by EN 60439-6:2012

Applies to type-tested ASSEMBLIES (TTA) intended for use on construction sites, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out. These ASSEMBLIES may be transportable (semi-fixed) or mobile. This standard does not apply to ASSEMBLIES for use in the administrative centres of construction sites (offices, cloakrooms, ASSEMBLY rooms, canteens, restaurants, dormitories, toilets, etc.). The nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS shall be within the limits specified in EN 60439-1. Requirements for electrical protection provided by equipment manufactured according to this International Standard shall comply with the requirements given in EN 60364-7-704. NOTE: This standard may be used as a guide to partially type-tested ASSEMBLIES (PTTA) constructed according to agreement between manufacturer and user taking into account the nature of supply and/or distribution network and relevant installation requirements. The following major changes with respect to edition 1 (including amendments 1 and 2) have been incorporated: - introduction of the definition for rated current of ACS; - replacement of classification based on the rated current of ACS by classification based on the function as assigned by the manufacturer; - amended requirements for the protection of socket-outlets with reference to the more comprehensive requirements of EN 60364-7-704; - introduction of common requirements for all types of ACS.

D119/049 * Superseded by EN 61439-1:2009

To be read in conjunction with EN 60439-1 * Superseded by EN 60439-5:2006

Corrigendum to EN issued March 2004 * Superseded by EN 60439-4:2004

Applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard specifies definitions, classifications, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies in accordance with the EN 60439 series, the rated voltage of which does not exceed 1 000 V a.c. at frequencies not exceeding 1 000 Hz, or 1 500 V d.c. and suitable for general use for either indoor or outdoor applications. This standard does not apply to enclosures, which are covered by other specific products standards (e.g. EN 60670). Compliance with the safety requirements of the applicable product standard is the responsibility of the final assembly manufacturer.

The proposed method is applicable to enclosed PTTA or partitioned sections of PTTA without forced ventilation. It is intended to determine the temperature rise of the air inside the enclosure.

Initially handled by CLC/TC 17D (dormant) * Superseded by EN 61439-3:2012

Applies to busbar trunking systems intended to supply luminaires through tap-off units but does not apply to supply track systems in accordance with IEC Publication 570.

Applies to low-voltage switchgear and controlgear assemblies (type-tested assemblies (TTA) and partially type-tested assemblies (PTTA)), the rated voltage of which does not exceed 1 000 V a.c. at frequencies not exceeding 1 000 Hz, or 1 500 V d.c.

EN following parallel vote * Superseded by EN 60439-4:2004

The object of this standard is to specify definitions, classifications, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies in accordance with the EN 60439 series, the rated voltage of which does not exceed 1 000 V a.c. at frequencies not exceeding 1 000 Hz, or 1 500 V d.c. and suitable for general use for either indoor or outdoor applications. This standard applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard does not apply to enclosures which are covered by other specific products standards (e.g. IEC 60670, household and similar installations). Compliance with the safety requirements of the applicable product standard is the responsibility of the final assembly manufacturer. This standard may serve as a basis for other technical committees

EN following parallel vote * Superseded by EN 60439-5:2006

The proposed method is applicable to enclosed PTTA or partitioned sections of PTTA without forced ventilation. It is intended to determine the temperature rise of the air inside the enclosure.

EN following parallel vote * Corrigendum to EN/A2 issued December 1997 * Superseded by EN 60439-1:1999

Gives supplementary requirements for cable distribution cabinets (CDC), which are stationary, type-tested assemblies (TTA) for outdoor installation in places which are exposed to the public, but where only skilled persons have access to their use. They are safe for use in public three-phase systems

Corrigendum to EN/A11 issued December 1997 * Superseded by EN 60439-1:1999

EN following parallel vote * Superseded by EN 60439-4:2004

EN following parallel vote * Corrigendum to EN/A1 issued December 1997 * Superseded by EN 60439-1:1999

Initially handled by CLC/TC 17D (dormant) * Superseded by EN 61439-3:2012

This standard applies to low-voltage switchgear and controlgear assemblies (type-tested assemblies (TTA) and partially type-tested assemblies (PTTA), the rated voltage of which does not exceed 1 000 V a.c. at frequencies not exceeding 1 000 Hz, or 1 500 V d.c. This standard also applies to assemblies incorporating control and/or power equipment, the frequencies of which are higher. In this case, appropriate additional requirements shall apply. This standard applies to stationary or movable assemblies with or without enclosure. NOTE - Additional requirements for certain specific types of assemblies are given in supplementary standards. This standard applies to assemblies intended for use in connection with generation, transmission, distribution and conversion of electric energy and for the control of electric energy consuming equipment. It also applies to such assemblies designed for use under special service conditions, for example in ships, in rail vehicles, for machine tools, for hoisting equipment, or in explosive atmospheres, and for domestic (operated by unskilled persons) applications, provided that the relevant specific requirements are complied with. This standard does not apply to individual devices and self-contained components, such as motor starters, fuse switches, electronic equipment, etc., complying with their relevant standards. The object of this standard is to lay down the definitions and to state the service conditions, construction requirements, technical characteristics and tests for low-voltage switchgear and controlgear assemblies.

Applies to busbar trunking systems intended to supply luminaires through tap-off units but does not apply to supply track systems in accordance with IEC Publication 570.

This standard applies to type-tested assemblies (TTA) intended for use on construction sites, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out. These assemblies may be transportable (semi-fixed) or mobile.

This standard gives supplementary requirements for enclosed distribution boards (DBU), which are stationary, type-tested assemblies (TTA) for indoor use, containing protective devices and intended for use either in domestic (household) applications or in other places where unskilled persons have access for their use.

The following method is applicable to enclosed PTTA or partitioned sections of PTTA without forced ventilation. Notes 1. - The influence of the materials and wall thicknesses usually used for enclosures are negligible on the steady state temperatures. The method is therefore applicable to enclosures made of sheet steel, sheet aluminium, cast iron, insulating material and the liken 2. - For open-type and dead-front PTTA, no temperature-rise assessment is needed if it is obvious that no excessive air temperatures are likely to arise.