{"id":574126,"date":"2024-11-05T19:42:18","date_gmt":"2024-11-05T19:42:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iec-62271-1032021\/"},"modified":"2024-11-05T19:42:18","modified_gmt":"2024-11-05T19:42:18","slug":"iec-62271-1032021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iec\/iec-62271-1032021\/","title":{"rendered":"IEC 62271-103:2021"},"content":{"rendered":"

IEC 62271-103:2021 is applicable to three-phase, alternating current switches and switch-disconnectors for their switching function, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 162\/3 Hz up to and including 60 Hz. This document is also applicable to single-pole switches used on three-phase systems. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
\nThis edition includes the following significant technical changes with respect to the previous edition:
\n– this document has been aligned with IEC 62271-1:2017 and IEC 62271-102:2018;
\n– clarifications regarding the behaviour of the switch during breaking tests regarding current interruption and restrikes have been added;
\n– conditions of the switch after making and breaking tests have been clarified;
\n– a new informative Annex B intended to provide guidance for the calculation of Ief1 and Ief2 has been added;
\n– new rules for the combination of 50 Hz and 60 Hz switching tests have been defined and a new table (Table 7) has been added;
\n– tests with specified TRV have been modified to be in accordance with the practice described in IEC 62271-100;
\n– the behaviour of the switch during breaking tests has been clarified and boundaries for restrike allowance have been defined;
\n– explanations for short-circuit making tests have been added;
\n– vacuum integrity check after mechanical operations has been defined;
\n– all test voltages for single-phase capacitive testing have been grouped under 7.101.7.3.2 and have been confirmed by simulation and calculation.<\/p>\n","protected":false},"excerpt":{"rendered":"

High-voltage switchgear and controlgear – Part 103: Alternating current switches for rated voltages above 1 kV up to and including 52 kV<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEC<\/b><\/a><\/td>\n2021-05-11<\/td>\n184<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":574138,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[516,2636],"product_tag":[],"class_list":{"0":"post-574126","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-130-10","7":"product_cat-iec","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/574126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/574138"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=574126"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=574126"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=574126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}