Válcové kotle - Část 9: Požadavky na omezovací zařízení pro kotle a příslušenství (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.5.2025
Designation standards: ČSN EN 12953-9
Classification mark: 077853
Catalog number: 521104
Publication date standards: 1.5.2025
The number of pages: 56
Approximate weight : 168 g (0.37 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies requirements for limiters which are incorporated into safety systems for shell boilers as specified in EN 12953-1:2012.
The design requirements and examination of the limiters are covered in this document.
NOTE - See Annex E for determination of the characteristic data for use in protective circuits with a safety integrity level (SIL) rating. The requirements for limiters with regard to the safety integrity level (SIL), for example, in accordance with EN 61508 are not covered in this document