STN EN IEC 60947-5-8
| Name: | STN EN IEC 60947-5-8 |
| Validity: | Valid |
| Number of pages: | 36 |
| Language: |
EN
|
| Paper: | 17,20€ |
| Electronic version |
a) Only read (without ability to print and copy)
15,48€ b) Without ability to print, with ability to copy (printscreen) 17,20€ c) With ability to print and copy (printscreen) 22,36€ |
| Slovak title | Nízkonapäťové spínacie a riadiace zariadenia. Časť 5-8: Prístroje riadiacich obvodov a spínacie prvky. Trojpolohové povelové spínače |
| English title | Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches |
| Release Date: | 01. 07. 2021 |
| Date of withdrawal: | |
| ICS: | 29.130.20 |
| Sorting character/National clasification code | 35 4101 |
| Level of incorporation: | idt EN IEC 60947-5-8:2021, idt IEC 60947-5-8:2020 |
| Official Journal | 06/21 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 60947-5-8:2007-08 (35 4101) |
| Note in Official Journal: | |
| Subject of the standard: | 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. |
| Preview: | Náhľad normy (PDF) |