ISO 7240-19:2007 火災検知および警報システム—パート19：緊急用の音響システムの設計、設置、試運転、およびサービス | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 7240-19 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 3, Fire detection and alarm systems.

This first edition of ISO 7240-19 together with ISO 7240-16 cancels and replaces IEC 60849:1998, which has been technically revised.

ISO 7240 consists of the following parts, under the general title Fire detection and alarm systems:

• Part 1: General and definitions
• Part 2: Control and indicating equipment
• Part 4: Power supply equipment
• Part 5: Point-type heat detectors
• Part 6: Carbon monoxide fire detectors using electro-chemical cells
• Part 7: Point-type smoke detectors using scattered light, transmitted light or ionization
• Part 8: Carbon monoxide fire detectors using an electro-chemical cell in combination with a heat sensor
• Part 9: Test fires for fire detectors (Technical Specification)
• Part 10: Point-type flame detectors
• Part 11: Manual call points
• Part 12: Line type smoke detectors using a transmitted optical beam
• Part 13: Compatibility assessment of system components
• Part 14: Guidelines for drafting codes of practice for design, installation and use of fire detection and fire alarm systems in and around buildings (Technical Report)
• Part 15: Point type fire detectors using scattered light, transmitted light or ionization sensors in combination with a heat sensor
• Part 16: Sound system control and indicating equipment
• Part 19: Design, installation, commissioning and service of sound systems for emergency purposes
• Part 21: Routing equipment
• Part 22: Smoke-detection equipment for ducts
• Part 27: Point-type fire detectors using a scattered-light, transmitted-light or ionization smoke sensor, an electrochemical-cell carbon-monoxide sensor and a heat sensor
• Part 28: Fire protection control equipment

A part 26 dealing with oil mist detectors is under development.

Introduction

A sound system for emergency purposes (s.s.e.p.) alerts occupants to a hazard that can require their safe and orderly evacuation from the building. It operates automatically or manually. Equipment to alert building occupants is, therefore, required to function after the hazard has been detected. Fire in a building is a common hazard that is often detected by an automatic fire detection and alarm system. A s.s.e.p. can operate as part of a fire detection and alarm system or can function in conjunction with other emergency detection systems.

When used for emergency purposes, it is recommended that the s.s.e.p. form part of a complete facility (equipment, operating procedures and training programmes) for the control of emergencies.

The s.s.e.p. can be the subject of approval by relevant authorities.

This part of ISO 7240 has been prepared by ISO/TC 21/SC 3 and is based on IEC 60849:1998, Sound systems for emergency purposes prepared by the International Electrotechnical Commission IEC/TC 100 Audio, video and multimedia systems and equipment.

This part of ISO 7240 contains specific requirements for the design, installation, commissioning and service of sound systems for emergency purposes and follows the general format specified in ISO/TR 7240-14.

1 Scope

This part of ISO 7240 specifies the design, installation, commissioning and service requirements for a sound system for emergency purposes (s.s.e.p.; see ISO 7240-1:2005, Figure 1, item C), which is primarily intended to broadcast information for the protection of lives within one or more specified indoor or outdoor areas during an emergency. The s.s.e.p. is intended to initiate a rapid and orderly mobilization of occupants in an emergency by including systems using loudspeakers to broadcast voice announcements for emergency purposes, alert signals complying with ISO 7731 (where applicable) and evacuation signals complying with ISO 8201. In some cases, sound systems are used in preference to sounders or bells in order to broadcast a range of coded warnings that is difficult to communicate with sounders or bells.

The use of the s.s.e.p. for normal sound reinforcement and distribution systems purposes under non-hazardous circumstances is not excluded. When used for non-emergency purposes, the zoning of the loudspeakers can differ from the zones used for emergency purposes.

This part of ISO 7240 does not apply to sound systems that use bells or sounders.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

Bibliography