I.S. EN 12952-11:2007
Current
The latest, up-to-date edition.
WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 11: REQUIREMENTS FOR LIMITING DEVICES OF THE BOILER AND ACCESSORIES
Hardcopy , PDF
English
01-01-2007
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for limiters
4.1 General
4.2 Materials and design
4.3 Electrical equipment
4.4 Fault assessment
4.5 Marking
5 Special requirements for water level limiters
5.1 Components
5.2 Design
5.3 Floating devices
5.4 Level electrode devices
5.5 Examination of functional capability
5.6 Fault detection
6 Special requirements for pressure limiters
6.1 Components
6.2 Additional fault assessment requirements
6.3 Design
6.4 Electrical equipment
6.5 Examination of functional capability
6.6 Fault detection
7 Special requirements for temperature limiters
7.1 Components
7.2 Design
7.3 Electrical equipment
7.4 Examination of functional capability
8 Special requirements for flow limiters
8.1 Components
8.2 Design
8.3 Electrical equipment
8.4 Examination of functional capability
Annex A (informative) Limiting device
Annex B (informative) Example of an examination plan
Annex C (informative) Marking of limiters
Annex D (normative) Immunity against electrical and
electromagnetic influences - Requirements and testing
Annex ZA (informative) Relationship between this European
Standard and the Essential Requirements of EU
Directive 97/23/EC
Bibliography
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