- 产品名称:正品CTI-TC105感温火灾探测电缆105感温报警器_优质火警探测、报警设备-上海道夫自动化仪表工程有限公司
- 产品价格:面议
- 产品数量:30000
- 保质/修期:365
- 保质/修期单位:日
- 更新日期:2019-10-15
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
CTI-TC105感温火灾探测电缆105服务商_通讯电缆相关-上海道夫自动化仪表工程有限公司
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,
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 National Fire Protection Association and design specifications published by
jurisdictional authorities, as appropriate.
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