EN 12845:2004/prA1
(Amendment)Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance
Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance
Amendment to withdraw standard from Mandate M/109 (i.e. removal of Annex ZA and associated references)
Ortsfeste Brandbekämpfungsanlagen - Automatische Sprinkleranlagen - Planung, Installation und Instandhaltung
Installations fixes de lutte contre l'incendie - Systèmes d'extinction automatiques du type sprinkleur - Calcul, installation et maintenance
Vgrajene naprave za gašenje - Avtomatski sprinklerski sistemi - Projektiranje, vgradnja in vzdrževanje
General Information
- Status
- Not Published
- Technical Committee
- CEN/TC 191 - Fixed firefighting systems
- Drafting Committee
- CEN/TC 191/WG 5 - Sprinkler systems
- Current Stage
- 5060 - Closure of Vote - Formal Approval
- Start Date
- 21-Jan-2009
- Due Date
- 03-Dec-2008
- Completion Date
- 21-Jan-2009
Relations
- Effective Date
- 04-Feb-2009
- Effective Date
- 22-Dec-2008
Overview
EN 12845:2004/prA1 is a CEN draft amendment to the European standard EN 12845 covering fixed firefighting systems - automatic sprinkler systems: design, installation and maintenance. The amendment updates terminology, tables, figures and several clauses and removes references to the EU Construction Products Directive (deletes Annex ZA). It also adds an informative Annex M on independent certification bodies and deletes the clause on evaluation of conformity. This document is intended for adoption by CEN national members and guides consistent sprinkler system practice across Europe.
Key topics and technical requirements
- Scope and intent: Guidance for the design, installation and maintenance of automatic sprinkler systems and allowance for documented design deviations (e.g., full‑scale fire testing) that provide equivalent protection.
- Terminology updates: Clarifications and renumbering (e.g., EN 1254 referenced as “all parts”; EN 50342 split into Parts 1 and 2; revision of terms such as “life safety system” and removal of “sprinkler kit”).
- Hydraulics and pipework: Revised instructions for pipe sizing and layout, including updated equivalent lengths of fittings and valves table and C‑value conversion factors for different pipe materials.
- Storage and ceiling obstructions: Specific changes such as minimum aisle width in storage configurations (aisles not less than 2.4 m) and clarified requirements for sprinklers near beams and similar obstructions (deflector height rules and alternative solutions to ensure effective discharge).
- Water supply and capacity: Clarified notes on water supply (e.g., taking into account extra flow for fire brigade purposes) and renaming of tables (for example, minimum effective capacity of reduced capacity tanks).
- Figures and design examples: Numerous figures and keys replaced or clarified to support layout, design points and selection of design areas (most favourable/unfavourable areas, design points, control valve sets).
- Conformity and certification: Deletion of Clause 21 (evaluation of conformity) and addition of Annex M encouraging certification of companies that design, install and maintain systems by independent certification bodies.
Applications and users
This standard is used by:
- Fire protection engineers and system designers specifying sprinkler coverage and hydraulic calculations
- Sprinkler contractors and installers implementing layouts, pipework, valves and pumps
- Facilities and asset managers ensuring systems remain compliant for operation and maintenance
- Inspection bodies and independent certification organizations assessing competence and system conformance
- Regulatory authorities and fire brigades referencing design assumptions for emergency response
Practical uses include warehouse racking design, industrial and commercial building sprinkler layout, pump and tank sizing, and maintenance schedules.
Related standards (referenced)
- EN 1254 (all parts) - pipe fittings
- EN 50342-1 and EN 50342-2 - lead‑acid starter batteries (parts referenced)
- prEN 12259-12 (sprinkler pumps / sprinkler pumps title change)
- EN 60947-1 and ISO 3046 (terminology and referenced performance standards)
Keywords: EN 12845, automatic sprinkler systems, fixed firefighting systems, sprinkler design, sprinkler installation, sprinkler maintenance, CEN standard, sprinkler certification.
Frequently Asked Questions
EN 12845:2004/prA1 is a amendment published by the European Committee for Standardization (CEN). Its full title is "Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance". This standard covers: Amendment to withdraw standard from Mandate M/109 (i.e. removal of Annex ZA and associated references)
Amendment to withdraw standard from Mandate M/109 (i.e. removal of Annex ZA and associated references)
EN 12845:2004/prA1 is classified under the following ICS (International Classification for Standards) categories: 13.220.20 - Fire protection. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12845:2004/prA1 has the following relationships with other standards: It is inter standard links to EN 12845:2004+A2:2009, EN 12845:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 12845:2004/prA1 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2008
Vgrajene naprave za gašenje - Avtomatski sprinklerski sistemi - Projektiranje,
vgradnja in vzdrževanje
Fixed firefighting systems - Automatic sprinkler systems - Design, installation and
maintenance
Ortsfeste Brandbekämpfungsanlagen - Automatische Sprinkleranlagen - Planung,
Installation und Instandhaltung
Installations fixes de lutte contre l'incendie - Systèmes d'extinction automatiques du type
sprinkleur - Calcul, installation et maintenance
Ta slovenski standard je istoveten z: EN 12845:2004/prA1
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
FINAL DRAFT
EN 12845:2004
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
August 2008
ICS 13.220.20
English Version
Fixed firefighting systems - Automatic sprinkler systems -
Design, installation and maintenance
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen - Automatische
d'extinction automatiques du type sprinkleur - Calcul, Sprinkleranlagen - Planung, Installation und Instandhaltung
installation et maintenance
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 191.
This draft amendment A1, if approved, will modify the European Standard EN 12845:2004. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12845:2004/prA1:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
1 Modification to the Foreword .4
2 Modification to the Introduction.4
3 Modification to Clause 1, Scope.4
4 Modification to Clause 2, Terms and definitions.4
5 Modification to Clause 3, Terms and definitions.5
6 Modification to 6.3.2, Storage Configuration .5
7 Modification to 7.2.3.4 .5
8 Modification to Clause 9, Type of water supply .5
9 Modification to 10.6.2.1, General.6
10 Modification 12.4.6, Beams and joists.6
11 Modification to Clause 13, Pipe sizing and layout .7
12 Deletion of Clause 21, Evaluation of conformity.12
13 Addition of Annex M, Independent certification body .13
14 Deletion of Annex ZA, Clauses of this European Standard addressing the provisions of
the EU Construction Products Directive. .13
Foreword
This document (EN 12845:2004/prA1:2008) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the Unique Acceptance Procedure.
1 Modification to the Foreword
th th
Delete the 4 and 5 paragraphs:
“This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.”.
th
Delete the 9 indent "- water spray systems (EN ……….1).".
2 Modification to the Introduction
Add at the end of the last sentence of the second from last paragraph "(see Annex M)" to read:
"Similarly, competent technicians should be used in the installation and testing of the equipment (see
Annex M).".
3 Modification to Clause 1, Scope
Delete the second from last paragraph: “This standard also covers sprinkler kits where a kit comprises all the
components necessary to complete the installed sprinkler system.”.
Add the following paragraph at the end:
"Sprinkler system design deviations may be allowed when such deviations have been shown to provide a
level of protection at least equivalent to this European Standard, for example by means of full scale fire testing
where appropriate, and where the design criteria have been fully documented.".
4 Modification to Clause 2, Terms and definitions
Replace "EN 1254" with "EN 1254 (all parts)".
rd
In the 3 element of the title of prEN 12259-12, replace "Pumps" with "Sprinkler pumps".
Replace "EN 50342, Lead-acid starter batteries — General requirements, methods of test and numb
...
The article states that there is an amendment to EN 12845:2004/prA1, which is the standard for fixed firefighting systems, specifically automatic sprinkler systems. The amendment involves withdrawing the standard from Mandate M/109, which means removing Annex ZA and any associated references.
記事のタイトル:EN 12845:2004/prA1 - 固定消火システム - 自動散水システム - 設計、設置、および保守 記事の内容:Mandate M/109からの基準の撤回に関する改訂が行われた(つまり、Annex ZAおよび関連する参照の削除)。
기사 제목: EN 12845:2004/prA1 - 고정 소화 시스템 - 자동 스프링클러 시스템 - 설계, 설치 및 유지 보수 기사 내용: 규정 M/109에서 표준 철회를 위해 개정이 이루어졌다 (즉, 부록 ZA 및 관련 참조 삭제).










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