PREN 12952-11 : DRAFT 99

Superseded

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WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - REQUIREMENTS FOR LIMITING DEVICES AND SAFETY CIRCUITS OF THE BOILER AND ACCESSORIES

Available format(s):

Superseded date: 01-07-2007

Language(s):

Published date: 12-01-2013

Publisher: Comite Europeen de Normalisation

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Table of Contents - (Show below) - (Hide below)

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

Abstract - (Show below) - (Hide below)

Provides requirements for limiting devices, and safety circuits of water-tube boilers as defined in EN 12952-1.

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Comment Closes On
Committee	TC 269
Document Type	Draft
ISBN
Pages
Published
Publisher	Comite Europeen de Normalisation
Status	Superseded
Superseded By	EN 12952-11:2007

National Adoptions - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
99/715322 DC : DRAFT NOV 99	Identical
NEN EN 12952-11 : 2007	Identical
NF EN 12952-11 : 2007	Identical

Standards Referencing This Book - (Show below) - (Hide below)

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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