What is the difference between IEC 60439 vs IEC 61439?
What is the difference between IEC 60439 vs IEC 61439?
As a result, the original seven type tests from IEC 60439 have been increased to 14 design verification items under IEC 61439. IEC 61439 now ensures that assemblies meet the performance requirements through a combination of testing, calculation and/or interpolation.
Is IEC 60439 obsolete?
After 5 years of transition period International Electrotechnical Commission has made the IEC-60439 obsolete but IS-8623 is still in use. The latest IEC has forbidden the PTTA & TTA concept of assemblies and put a new concept verified assemblies.
What IEC 60439?
The current IEC 60439 standard applies to enclosures. for which the rated voltage is under or equal to 1000 V AC. (at frequencies not exceeding 1000 Hz) or 1500 V DC. The standard makes a distinction between type-tested. assemblies (TTA) and partially type-tested assemblies.
What IEC 61439?
IEC 61439 defines which points the manufacturer and the user of a switchgear and controlgear assembly have to define. The switchgear and controlgear assembly is viewed as a so-called black box, whose interfaces to the environment are defined in 4 areas.
What IEC 62208?
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 …
What is the Indian standard for LV switchgear *?
The text of the IEC standard has been considered and approved by ET 07, Low Voltage Switchgear and Controlgear Sectional Committee of BIS, as suitable for publication as Indian Standard. The requirements covered in this standard is applicable to product types covered in IS 2675, IS 5039 and IS 13032.
Is IEC a 60898?
IEC 60898-1 : ELECTRICAL ACCESSORIES – CIRCUIT-BREAKERS FOR OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR INSTALLATIONS – PART 1: CIRCUIT-BREAKERS FOR A.C. OPERATION.
Why IEC standard is required?
IEC International Standards are essential for quality and risk management; they help researchers understand the value of innovation and allow manufacturers to produce products of consistent quality and performance.
Is code for LV switchgear?
What is the IEC standard for LV switchgear circuit breakers?
IEC 60898
For domestic and similar LV installations, the appropriate standard is IEC 60898, or an equivalent national standard.
How does IEC 61439 compare with local standards?
In the South African market, one is required to comply with SANS 1973-1 for LV assemblies larger than 10 kA while IEC 61439-2 is the international standard. The local market is, however, driven by export, multinationals and the simple desire to comply with the latest international specifications and SANS 61439 is therefore increasingly requested.
Is the LV switchgear compatible with IEC 61439?
The answer could be yes if the LV switchgear complies with the provisions of Table 4.2 of SANS 10142-1 and some other details. The initial intention of the IEC 61439 series of standards was to reduce the required amount of testing and, consequently, the cost associated with testing.
What is the second stage verification of IEC 60439?
IEC 60439. Tests that have been made in accordance with IEC 60439 and that fulfil the requirements of the new IEC 61439 need NOT be repeated. The second stage verification is the routine verification. This is performed to verify that the materials and workmanship are in accordance with the requirements of the standard.
Is the Sans 1973-1 based on IEC 60439?
“Distribution boards” are defined under Clause 3.26 as “switchgear and control gear assemblies”. SANS 1973-1 is based on SANS 60439-1, with a few additional requirements and modifications. SANS 60439-1 is an identical copy of the IEC 60439-1.
