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EVS-EN IEC 60947-5-8:2021

Madalpingelised lülitusaparaadid. Osa 5-8: Juhtimisahelate aparaadid ja lülituselemendid. Kolmepositsioonilised lülitid

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Kehtiv alates 15.04.2021
Alusdokumendid
IEC 60947-5-8:2020; EN IEC 60947-5-8:2021
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Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
15.04.2021
Põhitekst
06.02.2007
Põhitekst
IEC 60947-5-8:2020 specifies requirements for three-position enabling switches. These switches are used as components of enabling devices to provide signals that, - when activated, allow machine operation to be initiated by a separate start control, and - when de-activated, -- initiate a stop function, and -- prevent initiation of machine operation. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - due to the increasing range of useful applications of three-position enabling switches, note of scope, operational characteristics and tests are reviewed; - figures for example of devices incorporating enabling switch are added in Annex A; - new Annex B for procedure to determine reliability data for the switch used in functional safety applications is added.
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EVS-EN IEC 62061:2021

Masinate ohutus. Ohutusega seotud juhtimissüsteemide funktsionaalne ohutus
Uusim versioon Kehtiv alates 03.08.2021