99/715322 DC : DRAFT NOV 99
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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PREN 12952-11 - WATER-TUBE BOILERS - PART 11: REQUIREMENTS FOR LIMITING DEVICES AND SAFETY CIRCUITS OF THE BOILER AND ACCESORIES
31-08-2007
23-11-2012
Foreword
1 Scope
2 Normative references
3 Definitions
3.1 Limiter
3.2 Fail-Safe
3.3 Self-Monitoring
3.4 Redundancy
3.5 Diversity
4 Requirements for limiters
4.1 General
4.2 Materials and design
4.3 Electrical equipment
4.4 Fault assessment
5 Special requirements for water 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 requirements regarding 4.4 "Fault
assessment"
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
Annex A (informative) Limiting safety devices
Annex B (informative) EC-Type examination plan
Annex C (informative) Marking of limiters
Annex ZA (informative) Clauses of this European
Standard addressing essential or other
provisions of the Pressure Equipment
Directive
Committee |
PVE/2
|
DocumentType |
Draft
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy |
Standards | Relationship |
PREN 12952-11 : DRAFT 99 | Identical |
PREN 50156-1 : DRAFT 2012 | ELECTRICAL EQUIPMENT FOR FURNACES AND ANCILLARY EQUIPMENT - PART 1: REQUIREMENTS FOR APPLICATION DESIGN AND INSTALLATION |
IEC 61082-1:2014 RLV | Preparation of documents used in electrotechnology - Part 1: Rules |
EN 60742:1995 | Isolating transformers and safety isolating transformers - Requirements |
IEC 60770:1984 | Methods of evaluating the performance of transmitters for use in industrial-process control systems |
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV | Degrees of protection provided by enclosures (IP Code) |
EN 60529:1991/AC:2016-12 | DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015) |
IEC 60664-1:2007 | Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests |
EN 60730-1:2016 | Automatic electrical controls - Part 1: General requirements |
1997/23/EC : 1997 | DIRECTIVE 97/23/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 29 MAY 1997 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING PRESSURE EQUIPMENT |
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