Fire Detection, Heat-Actuated

Heat sensitive devices may be either "spot" or "line" type and operate at a fixed temperature or on a rapid increase in

temperature (rate-of-rise). Some detectors combine the fixed and rate sensitive principles.

The spacing guides listed are indicative of each detector"s relative sensitivity and, in each case, the spacing guide is the

maximum recommended separation between detectors for smooth-ceiling installations. For a given temperature rating, a

fixed-temperature detector which has a 30 ft (9 m) listing and one which has a 15 ft (5 m) listing will both respond at

approximately the same time to a geometrically growing fire if each is installed at its listed spacing. FM Approved rate-of-rise

detectors all have 30 ft (9 m) listed spacings, the maximum separation recommended by FM Approvals.

Installation of heat detectors at less than maximum spacing is necessary: to achieve earlier response; to compensate for ceiling

obstructions such as beams and joists; and to compensate for ceiling heights greater than 15 ft (5 m). Proper location and use of

heat detectors involves consideration of ceiling construction, the location of partitions, the maximum normal room temperature,

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heat produced by the occupancy, and whether detector function is to warn occupants or to automatically actuate protection

equipment. Refer to Standard 72-1993 of the

Electrical Signaling

Electrical protective signaling systems are configurations of components used to produce alarm signals indicative of fire, smoke,

sprinkler waterflow or other emergency and to produce supervisory signals indicative of conditions needing attention with respect to

protection equipment or watch service. System configurations are classified according to where and how the signals are received.

The categories are commonly designated as local, municipal, remote station, proprietary, emergency voice/alarm communication,

emergency communication, and central station. Auxiliary systems are either local or proprietary systems interconnected with a

municipal system.

This category presents the major system component categories and the integrated system configurations. The selection of

components to form a hybrid system should be made only by those skilled in system design. Also, the suitability of any system

application should be judged on the basis of the hazard(s) being protected.

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Alarm Signal Initiating Devices

Alarm signals are initiated either automatically or manually. Automatic detectors respond to changes in characteristic phenomena

associated with fire or other emergency conditions.

　　传统的机械式流量计，如：差压式流量计，容积式流量计，和变面积式流量计，已经处于普及化阶段，价格竞争激烈，利润空间日益减少，技术革新较少，市场相对成熟。Frost&Sullivan认为，口碑好CTI-155X缆式线型感温火灾探测器生产商,漏电火灾探测器相关，实现产品的差异化和定制化生产是生产商在成熟市场的激烈竞争中的一个重要突破点。根据弗若斯特沙利文对行业用户的需求进行分析，用户群体希望生产商能够提供为生产过程带来切实利益的自动化设备。用户在产品应用过程中会产生具体的需求，例如：应用在石化行业的特殊环境中，口碑好CTI-155X缆式线型感温火灾探测器生产商,图像火灾探测器相关，需要坚固耐用的设计以及防爆认证;用户对直管设计的科氏流量计的需求等。如何有效获取用户实际需求，并且对传统产品进行改良，是对生产商差异化和定制化生产过程的一个不小挑战。 　　根据规定，防火门生产企业必须获取公安部消防产品合格评定中心下发的消防产品型式认可证书，方可生产、销售、安装防火门。而已获得认可证书的企业，口碑好CTI-155X缆式线型感温火灾探测器生产商,专业的火警探测、报警设备，一旦证书被暂停或是过期未换证，在证书被恢复前同样不得销售、安装和使用防火门。消费者若想查询具有合格消防产品生产能力的生产企业名单，可登录中国消防产品信息网，在该网站提供的“中国消防产品质量信息查询系统”中输入关键词，上海道夫自动化仪表工程有限公司,道夫自动化仪表工程,就能查询到生产消防产品企业的详细信息。

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