Telefon: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Prodaja standarda: prodaja@iss.rs Seminari, obuke: iss-edukacija@iss.rs Informacije o standardima: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Glavni meni

IEC 60947-5-8:2020 ED2

Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches
12. 8. 2020.

Опште информације

60.60     12. 8. 2020.

IEC

TC 121/SC 121A

Međunarodni standard

29.130.20  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
IEC 60947-5-8:2006 ED1

TRENUTNO

OBJAVLJEN
IEC 60947-5-8:2020 ED2
60.60 Standard objavljen
12. 8. 2020.

Nacionalna preuzimanja

Niskonaponske rasklopne aparature - Deo 5-8: Uređaji za upravljanje kolima i rasklopnim elementima - Sklopke sa tri moguća položaja

60.60   Standard objavljen