Proline 'TH' Digital Linear Heat - Sensor Cable
 Product Approvals
Factory Mutual(FM) Approvals: 3025739
Underwriters Laboratories (UL): S9029
SHENYANG (CHINA) TESTED AND
RUSSIAN FIRE SERVICES DEPT ACCEPTED
- Point of risk detection or area protection within any environment (incl. Sub Zero temperature risks and Hazardous Environments)
- Cable and detector combined
- Multiple Alarm temperatures possible on single zone -if required
- Detection at ALL and ANY point along its length (multi kms/zone capability)
- No special tooling required
- Tested to all appropriate electrical standards
- FM Approved AND UL listed
- Installation within ambient temperature range -40C to + 90C
- Alarm temperature NOT related to sensor cable length exposed
- Fire damaged section replacement only
- Design length NOT restricted in high ambient temperatures
- 11C minimum to be allowed between maximum ambient and minimum alarm
- Rilsan Extrusion option provides resistance to chemical corrosion and mechanical abrasion
- Stainless Steel Braid option for maximum mechanical protection where required
- Ease of Installation, Commissioning and on-site testing
- Compatible with end user installed central control panel - Fire Alarm or Building Management
- Proline ZI Interface unit range available.
WARNING: Linear Heat Sensor Cables must NEVER be connected directly to electrical mains supplies.
Introduction
"DIGITAL" Linear Heat Detection - A heat sensing cable which monitors and detects changes in temperature at ANY and ALL points along its length. Project design length requirements are not altered or affected by high ambient temperatures. Multiple alarm temperatures possible from a single sensor cable run. By "point of risk" installation, there is no reliance on favourable airflows for early detection of overheat (no visible flame) conditions and system offers possible prevention of fires!
Description
The PROLINE "DIGITAL" TH linear heat detection adopts a 3.5 mm (0.138in) external diameter single pair (two conductors) heat sensitive cable as the basis for its overheat/fire detection system.
At a pre-selected temperature, the thermal sensitive polymer (extruded around BOTH the sensor cables inner tinplated copper coated steel conductors) softens, allowing the signalling cores/conductors - that are twisted together to form a spring like pressure between them - to move into contact with each other producing an alarm signal. A mechanical tension is constantly and uniformly maintained along the entire length of the detector. If conductor continuity is broken - with inner insulation maintained (i.e. non alarm state), an open circuit fault condition will be signaled.
An outer extrusion of corrosion and abrasion resistant polymer maintains the conductor twisting over the full length of sensor cable installed and allows for its installation in external weather conditions and its application within more severe local environments. For applications where a high risk of chemical corrosion or mechanical abrasion has been identified, an industrial "nylon" or stainless steel braided version of the sensor cable can be supplied.
The PROLINE TH range of linear heat sensor cables are currently manufactured in a choice of four (4) temperature ratings to allow for variations in individual project maximum ambient and/or alarm temperature requirements. The authority having jurisdiction should always be contacted to confirm suitability of specified alarm temperature rating. It is advisable to allow a minimum of +11C/+20F between maximum normal ambient and minimum alarm temperature in order to avoid any potential false alarm conditions. (Information origin - UL521 section 53.7).
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External Diameter:
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3.5mm ( 0.138in) |
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Dielectric Voltage Withstand:
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500Vdc- UL tested |
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Conductors:
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Tinplated copper coated steel - 2 x 0.912mm/0.036in/19AWG dia |
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Electrical Rating:
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30VAC (42.2Vdc) , 10A |
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Monitoring current applied:
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3mA @ 1Volt. - Proline ZI interface units only |
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Conductor Resistance:
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88.1 ohms minimum / 92.1 ohms maximum |
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Inner Extrusion:
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"Hybrid" temperature sensitive polymer - 0.294mm (0.011in) / conductor |
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External Extrusion:
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Colour coded Class 43 PVC based polymer - Lead & Cadmium FREE |
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UTS- tensile strength:
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1700 minimum ( N/mm2) tested to BS EN 60811-1 |
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Capacitance:
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TH68: 150pF/m, TH88: 97pF/m, TH105: 88pF/m |
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Inductance:
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TH68: 960nH/m, TH88: 540nH/m, TH105: 1060nH/m |
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Impedance:
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TH68: ~ 80ohm, TH88: ~ 75ohm, TH105: ~ 110 ohm |
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Minimum sensor bend radius:
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Recommended- 100mm |
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Shipping Weight per 1000m:
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26.6kgs (59lbs). |
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Single 1000m reel:
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480mms (18.9 inches) diameter |
WARNING: Linear Heat Sensor Cables must NEVER be connected directly to electrical mains supplies
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