IEEE C37.59-2007 pdf free
IEEE C37.59-2007 pdf free.IEEE Standard Requirements for Conversion of Power Switchgear Equipment.
IEEE C37.59 covers power switchgear equipment that is converted from a qualified design. It provides direction and guidance in those conversions and specifies required design verification in accordance with applicablc American National Standards Institute (ANSI), National Electrical Manufacturers Association (NEMA). Underwriters Laboratories Inc. (UL), or IEEE standards.
This standard also recognizes that production/field testing does not provide design verification. It can only be accomplished by means of design testing and technical evaluation.
1.2 Other conversions
The Conversion and testing processes outlined in this standard are based on known examples, and the examples are outlined for general guidance and direction. However, alterations can be made to other equipment. not discussed in detail in this document. which require design verification in accordance with appropriate standards. When any question develops, the converter should be consulted.
Additionally, although this standard specifically does not cover reconditioning of power switchgear equipment. it does recognize the process and the fact that appropriate production/field testing is necessary.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e.. they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
When conversions arc made to older equipment, such as circuit breakers rated on a total current basis, it is essential that the converted device electrical ratings arc correlated to at least meet the applicable electrical ratings described in the edition of the standard that was in effect at the time of the original equipment manufacture. The converted device shall also at least meet the construction and design requirements applicable to the original equipment described in the edition of the standard that was in effect at the time of the original equipment manufacture.
Older designs of metal-enclosed or metal-clad switchgear assemblies also may not meet the design and construction requirements of the most recently published editions of the standards. For example. when conversions to circuit breakers are supplied, it may be impractical to convert the existing assemblies to meet the most recently published editions of the standards. In these cases, no additional conversion of the existing assemblies is required unless specifically stated otherwise in this standard.IEEE C37.59 pdf download.
