BS EN 12953-9:2024 - TC

This standard BS EN 12953-9:2024 - TC Tracked Changes. Shell boilers is classified in these ICS categories:

• 27.060.30 Boilers and heat exchangers

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.