CEN/TR 15276-2:2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Use and limitations
   4.1 General
   4.2 Extinguishants
        4.2.1 General
        4.2.2 Extinguishing mechanism
   4.3 Potentially explosive atmosphere
   4.4 Temperature limitations
5 Safety
   5.1 Hazard to personnel
   5.2 Safety precautions
        5.2.1 General
        5.2.2 Normally unoccupied areas
        5.2.3 Unoccupiable areas
        5.2.4 Installer's responsibility
        5.2.5 User's responsibility
   5.3 Electrical hazards
        5.3.1 General
        5.3.2 Electrical earthing
        5.3.3 Electrostatic discharge
6 System design
   6.1 General
   6.2 Specifications, plans and approvals
   6.3 Enclosures
        6.3.1 Protected enclosure
        6.3.2 Openings
        6.3.3 Unclosable openings
        6.3.4 Ventilation and services
        6.3.5 Venting requirements
   6.4 Design factor requirements
   6.5 Design factor adjustment
        6.5.1 Effects of altitude
        6.5.2 Effects of temperature
        6.5.3 Effects of ventilation
        6.5.4 Compensation for Leakage through enclosure
               openings
   6.6 Design quantity
   6.7 Unit size and quantity of aerosol generators
        6.7.1 Aerosol generator size selection
        6.7.2 Quantity of aerosol generator
   6.8 Duration of protection
   6.9 System discharge
        6.9.1 Discharge time
        6.9.2 Extended discharge
   6.10 Plans
7 System installation
   7.1 General
   7.2 Aerosol generator arrangement
   7.3 Operating conditions
   7.4 Installation recommendations
   7.5 System operation
        7.5.1 General
        7.5.2 Automatic operation
        7.5.3 Manual operation
        7.5.4 System isolate switch (lock off device)
8 Detection, alarm and control systems
   8.1 General
   8.2 Automatic detection
   8.3 Operating devices
        8.3.1 General
        8.3.2 Automatic operation
        8.3.3 Manual operation
   8.4 Control equipment
        8.4.1 Electric control equipment
        8.4.2 Pneumatic control equipment
        8.4.3 Operating alarms and indicators
        8.4.4 Time delay device
        8.4.5 Control and indicating equipment
9 Commissioning and acceptance
   9.1 General
   9.2 Tests
        9.2.1 General
        9.2.2 Enclosure check
        9.2.3 Review of mechanical components
        9.2.4 Review of enclosure integrity
        9.2.5 Review of electrical components
        9.2.6 Preliminary functional tests
        9.2.7 System functional operational test
        9.2.8 Remote monitoring operations (if applicable)
        9.2.9 Control panel primary power source
   9.3 Completion of functional tests
   9.4 Completion certificate and documentation
10 Inspection
   10.1 General
   10.2 Inspection
        10.2.1 General
        10.2.2 Enclosures
11 Maintenance
   11.1 General
   11.2 User's programme of inspection
   11.3 Service schedule
12 Training
Annex A (normative) - Working documents
   A.1 General
   A.2 Working documents
Bibliography

This document specifies requirements and describes the methods for the design, installation, testing, maintenance and safety of condensed aerosol extinguishing systems and the characteristics of the extinguishant media and types of fire for which it is a suitable extinguishing medium. This document also covers the use of condensed aerosol extinguishing systems for total flooding applications in normally unoccupied and unoccupiable areas, primarily related to buildings, plant and other specific applications, utilising electrically non-conducting aerosol fire extinguishants and for which there are sufficient data available to enable validation of performance characteristics by an appropriate independent authority.This document is intended as a standard covering solely condensed aerosol.This document is not applicable to explosion suppression applications.This document is not intended to indicate approval of the extinguishants listed herein by the appropriate authorities, as other extinguishants may be equally acceptable.This document is applicable to the extinguishants which fulfil CEN/TR 15276-1.