DÂY CẢNH BÁO NHIỆT
DÂY CẢNH BÁO NHIỆT
Introduction
Protectowire Linear Heat Detector is a proprietary cable that detects
heat anywhere along its length. The sensor cable is comprised of two
steel conductors individually insulated with a heat sensitive polymer.
The insulated conductors are twisted together to impose a spring pressure between them, then wrapped with a protective tape and finished
with an outer jacket suitable for the environment in which the
Detector will be installed.
Protectowire is a fixed temperature digital sensor and is therefore capable of initiating an alarm once its rated activation temperature is
reached. At the rated temperature, the heat sensitive polymer insulation
yields to the pressure upon it, permitting the inner conductors to move
into contact with each other thereby initiating an alarm signal. This
action takes place at the first heated point anywhere along the
Detector’s length. It does not require that a specific length be heated in
order to initiate an alarm nor is system calibration necessary to compensate for changes in the installed ambient temperature. Protectowire
Linear Heat Detector provides the advantages of line coverage with
point sensitivity.
Protectowire Features & Benefits
• Identifies and displays, at the control panel, the alarm location
anywhere along its length when used with the exclusive
Protectowire Alarm Point Location Meter.
• Sensitivity not effected by changes in ambient temperature or
length of cable used on the detection circuit. Compensating
adjustments are not required.
• Simple to install and splice with common tools. Junctions can
be made without effecting the integrity of the system.
• Compatible with other types of alarm initiating devices on the
same circuit such as manual pull stations, thermal heat detectors and smoke detectors.
• Can be installed in hazardous areas when used with suitably
approved Protectowire FireSystem Control Panels.
• Full range of temperatures and models available to accommodate the most demanding applications.
• Different temperature detectors may be utilized in the same
initiating circuit.
• Available on stainless steel messenger wire for installations
where mounting is difficult such as large open areas.
• Portable test equipment available for easy field service.
• Ideally suited for activation of extinguishment equipment,
such as deluge or pre-action sprinkler systems.
Description
The Detector is made in multiple temperature ratings to allow
for differences in normal ambient temperature. Guidelines for selecting the proper detector temperature rating are the same as for automatic sprinklers and other heat actuated devices. Refer to the
Temperature Rating Chart for proper model selection based upon
installation temperature limits.
The Detector's product range consists of two distinct types of cable.
Standard PHSC models and low resistance "Universal" versions designated with the prefix PLR. Each model number designation also identifies a specific outer jacket material carefully selected to accommodate
the widest range of installation environments. All specifications are
subject to change without notice.
Applications
• Cable trays
• Conveyors
• Power distribution apparatus: switchgear, transformers,
motor control centers
• Dust collectors/baghouses
• Cooling towers
• Warehouses/rack storage
• Mines
• Pipelines
• Bridges, piers, marine vessels
• Refrigerated storage
• Tank farms
• Aircraft hangars
Ideally suited to industrial high risk hazards as well as many types
of commercial applications
Protectowire Linear Heat Detector has
unique advantages over other types of detectors, especially when
difficult installation factors or severe environmental conditions are
present.
When used with a Protectowire FireSystem Control Panel, the
Detector will activate a display, showing the location of an over
heat or fire condition anywhere along its length. The Detector
also meets intrinsically safe standards and is FM Approved for Class I,
II, or III, Div. 1, Applicable Groups A, B, C, D, E, F & G hazardous
areas, when the appropriate control panel option is ordered.
Nhà phân phối:
Liên hệ: Mrs Liên: 0911204078
Email: sales.vietfiretechs@gmail.com
