Standard

SN EN 12952-11:2007

Sep 2007 Current

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Abstract

This European Standard specifies requirements for limiters (or limiting devices) which are incorporated into safety systems for water-tube boilers as defined in EN 12952-1. A limiter (or limiting device) can be either: - a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3, and needs to include the safety logic and final actuator, or - one element of a safety system, for example, a self-monitoring water level sensor used as part of a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3. The overall boiler protection function shall be provided in association with additional safety logic (where appropriate) and a final actuator. The design requirements and examination of functional capability for the limiters are covered in this European Standard. For an explanation of the extent of the limiter (or limiting device) see Figure A.1.

Products specifications

Standard from SWISSMEM
Published: September 1 2007
Effective: September 1 2007
Document type: EN
Pages
ISBN:

ICS: 27.040
Publisher: SWISSMEM
Distributor: SNV
National Committee: Swissmem/NK 30

Swiss Federal Authority: SECO
Designated under following Swiss law: 930.114
Designated under following EU law: 2014/68/EU

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Abstract

Products specifications