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IEC 60471-ed.3.0
Clevis and tongue couplings of string insulator units - Dimensions
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STANDARD published on 9.7.2020
The information about the standard:
Designation standards: IEC 60471-ed.3.0
Publication date standards: 9.7.2020
SKU: NS-998053
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60471-ed.3.0 :
IEC 60471:2020 applies to string insulator units of the cap and pin type and also of the long rod type as well as the fittings used with such insulators. The object of this document is to define the dimensions of a series of clevis and tongue couplings to permit the assembly of insulators or fittings supplied by different manufacturers. This third edition cancels and replaces the second edition published in 1977. This edition includes the following significant technical changes with respect to the previous edition: - there are no new clevis and tongue couplings; - For the dimensions of the existing designated size of couplings that characterize the same location, the effective number of the size is unified. IEC 60471:2020 s’applique aux elements de chaines d’isolateurs de type a capot, a tige et egalement a long fut ainsi qu’aux accessoires metalliques qui leur sont associes. L’objet du present document est de definir les dimensions d’une serie d’assemblages a chape et tenon afin de permettre l’assemblage d’isolateurs ou d’accessoires metalliques fournis par differents fabricants. Cette troisieme edition annule et remplace la deuxieme edition parue en 1977. La presente edition inclut les modifications techniques majeures suivantes par rapport a l’edition precedente: - Selon les resultats du questionnaire (36/424/Q), il est confirme qu’il n’existe pas de nouveaux assemblages a chape et tenon; - Concernant les dimensions de tailles d’assemblage normalisees existantes qui caracterisent le meme emplacement, le nombre de la taille en vigueur est unifie.
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