Publisher international electrotechnical committee. This part of the iec 61439 series lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for lowvoltage switchgear and controlgear assemblies. The standard series is an adoption of the iec 61439 series, with variations to include australian and new zealand conditions. International standard iec 614991 has been prepared by iec technical committee 65. Iec 61439 en 61439 new tasks and responsibilities for the electrician iec 61439 en 61439 shows how a lowvoltage switchgear assembly, which is safe for the user, can be built. Asnzs 61439, the verification of these requirements need not be repeated see clause 10. Thus, the international electrotechnical committee carried out an indepth reform of these standards, which led to the publication of the new renumbered series iec 61439. Guide design and assembly according to iec 61439 en 61439. Routine verifications are to be performed by the manufacturer of the switchgear and controlgear assembly. Iec 61439 verification methods by steven mcfadyen on march 3rd, 2012 the relatively new switchgear and control gear standard, iec 61439 lowvoltage switchgear and controlgear assemblies, ensures. For each type of electrical assembly only two parts of the standard are necessary to determine all requirements. If i understood the writing of ie 61439 1, the tests are now more difficult, more time consuming and expensive to do than before. The principal standard for lowvoltage power switchgear and controlgear assemblies is bs en 61439 2, when read in conjunction with the general rules document, bs en 61439 1 assemblies conforming to. Iec 614391 is general rules standard to be referred to by subsidiary product parts of iec 61439 series.
This part 1 of iec 61439 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for lowvoltage switchgear and. As a result manufacturers and testing bodies often treated partially typetested assemblies november 2008 march 2009 introduction to iec 61439. This part of iec 61439 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low voltage bts see 3. Norm iec 61439 systeme siemens siemens global website. Parts 1 and 2 of the standard are addressed in this document, covering general. Project manager industrial components, member of sc 17d mt11 the new iec 61439 series, technical seminar, 10 november 2010, singapore 2. Protection against electrical shock busbar inside the enclosure is totally encapsulated and. Distribution boards intended to be operated by ordinary persons dbo. Refer table 1 the iec 60439 standards were ambiguous about how to assess compliance of partially type tested assemblies. Astm standards annual book of astm standards bs standards csn standards din standards iec. Assemblies for which the rated voltage does not exceed 1 000 v in case of a. The text of document 17d441fdis, future edition 2 of iec 61439 1, prepared by sc 17d, lowvoltage switchgear and controlgear assemblies, of iec tc 17, switchgear and controlgear was submitted to the iec cenelec parallel vote and approved by cenelec as en 61439.
The new series of iec 61439 standards were published in january 2009. The new iec 61439 series of standards thus defines the construction of low. Iec 61439 for low voltage switchgear and controllergear assemblies. This was the aim of an international project group which had been working on a task named radical restructuring and revision of iec 60439 series since 1998. The main doubt is if the ie 61439 added a test requirement much more complex than the previous ie 60439. It seems that there are significant differences in the temperature rise tests. Iec 61439 standard for low voltage switchgear and controlgear iec 61439 standard for low voltage switchgear and controlgear assemblies. Iec 60439, the standard for lowvoltage switchgear and controlgear assemblies, was under restructuring from the last decade. This part of the iec 61439 series lays down the definitions and states the. Iec shall not be held responsible for identifying any or all such patent rights.
Extract from standard 61439 1 comment unlike iec 604391, conformity cannot be established simply on the basis of the general rules iec 61439. This standard has brought considerable clarity in technical interpretation. Quadros electricos abb e a nova norma iec 61439 novonovo. In january 2009 the iec 61439, the new standard for lowvoltage switchgear and controlgear assemblies, was published. Iec 61439 standard for low voltage switchgear and controlgear. In addition to changes affecting the design of an assembly, the manufacturer of a switchgear assembly is faced with new tasks and responsibilities. There is no need to test electrical circuits which can be discounted in terms of shortcircuit. Lowvoltage switchgear and controlgear assemblies part 1. Assemblies for which the rated voltage does not exceed 1 000 v in.
Standard iec 614391 defines the general rules for low voltage switchgear assemblies. Plus satisfaction of points 610 in the checklist table iec 61439 1 b verification by testing shortcircuit withstand strength to iec 61439 1 paragraph 10. Atys m motorised and automatic changeover switches from 40 to 160 a 2 implementation of standard iecen 61439 socomec function description atys m is a range of singlephase or threephase. Iec 61439 defines which points the manufacturer and the user of a switchgear and controlgear assembly have to define. Iec 61439 12009 lowvoltage switchgear and controlgear assemblies part 1 general rules this document was uploaded by 989me. This edition of iec 61439 1 includes the following technical modifications compared to the last edition of iec 604391. Note 1 throughout this standard, the term assembly see 3. Important definitions to understand the standard are. Guidelines to the construction of a lowvoltage assembly complying with the standards iec 61439 part 1 and part 2 3. Iec 61439 standard follows the philosophy of iec 60947 series i. In the new standard iec 61439 1 these safety requirements have been included in addition to others pertaining to satisfactory performance under applicable environmental conditions.
The new standard iec 61439 low voltage switchgear and. Norm iec 61439 systems siemens siemens global website. This part of the iec 61439 series lays down the definitions and states the service conditions, construction requirements, technical characteristics and. An electrical assembly is a combination of more protec tion and switching. Basics of iec 61439 en 61439 iec 614391 en 614391 is a general part which must be read in conjunction with the product section iec 614392 to 7 en 61439 2 to 7.
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