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.
Directives related to this standards.
PUBLISHED
SSH EN 12953-9:2007
IN_DEVELOPMENT
prSSH EN 12953-9:2024
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