Protectowire Linear Heat Detector

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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 a specific length to be heated in order to initiate an alarm, nor system calibration to compensate for changes in the installed ambient temperature. Protectowire Linear Heat Detector provides the advantages of line coverage with point sensitivity.

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Thông tin sản phẩm

Applications 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 the appropriate Protectowire control equipment, 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 Factory Mutual (FM) Approved for Class I, II, or III, Div. 1, Applicable Groups A, B, C, D, E, F & G hazardous areas, when used with suitably approved Protectowire control equipment.

• 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

Jacketing Materials

EPC (Extruded Polyvinyl Chloride) – is a durable flame retardant vinyl outer jacket designed for interior commercial and industrial applications. Features of this jacket include low moisture absorption, resistance to many common chemicals, and excellent flexibility at low temperatures.

XCR (Extreme Corrosion Resistance) – is a high-performance fluoropolymer jacket designed for both interior and exterior environments. Features of this jacket include excellent chemical resistance, abrasion resistance, weather resistance, and hightemperature performance.

XCR is the only heat detector that is FM-approved for corrosive environments.

LSZH (Low Smoke Zero Halogen) – is a durable outer jacket designed for interior commercial and industrial applications requiring low smoke zero halogen performance. Features of this jacket include low moisture absorption, resistance to many common chemicals, and excellent flexibility at low temperatures.

XLT (Extreme Low Temperature) – is an outer jacket specifically selected for cold storage and freezers. Features of this jacket include low moisture absorption and excellent performance in extremely low temperatures. This detector has been UL and FM tested to –60°F (–51°C)

EPR (Extruded Polypropylene Rubber) – is an outer jacket designed for both interior and exterior environments. Features of this jacket include good abrasion resistance, chemical resistance, and weather resistance over a wide temperature range.

Specifications

Maximum Voltage Rating: 30 VAC, 42 VDC

Resistance PHSC Models: 0.185 ohms/ft. (0.607 ohms/m)

Resistance PLR Models: 0.058 ohms/ft. (0.191 ohms/m)

Min. Bend Radius: 2.5 inches (6.4cm) Nominal

Diameter: 5/32 inch (4mm) Nominal

Weight: 8lbs./500 ft. (3.6 kg/152m)