Patol Digital Linear Heat Detection Cable (Fire & Heat Detecting Cables)
Fire & Heat Detection Cables.
The cable operates at a fixed temperature, is non-resettable and comprises a twisted pair, two core cable with each core a tinned copper coated spring steel conductor with special heat reactive polymer insulation.
Digital linear heat detection cable operates by reacting to fire and heat and is used in conjunction with an end of line terminating device for continuity monitoring and a zone monitoring controller to provide outputs for fire and fault.
Patol digital linear heat detection cable
The Patol digital linear heat detection cable comprises a pair of twisted pair of twin core cable. Each core is manufactured from a tinned copper core spring steel and features special heat reactive insulation.
In addition the cable features an overall protective jacket/sheath.
Digital Linear Heat Detection Cable – Product Specifications
Number of Cores: 2
- 700-070 = 70°C
- 700-090 = 90°C
- 700-180 = 180°C
Max Ambient Temperature:
- 700-070 = 45°C
- 700-090 = 70°C
- 700-180 = 150°C
Minimum Operating Temperature: -40°C
Minimum Installation Temperature: -10°C
Cable Outer Sheath:
- Nylon (70°C & 90°C – Black)*
- Hytrel (180°C – Violet)*
- Nylon with Stainless Steel Armour*
Voltage Rating: 150 Vdc (Dielectric Test 500Vdc)
Cable Outer Diameter:
Nylon 4.0mm ± 0.3mm
Nylon & Stainless Steel Armour 4.5 ± 0.3mm
- Standard heat detection cable -1km on the reel 21kg
- Armoured heat detection cable cable – 500m on the reel 34kg
Heat Detection Cable Approval: UL Listed (180°C Pending)
HEAT DETECTING CABLE PRINCIPLE
Digital heat detection cable responds to small flame within 10 seconds of detection – the reactive polymer insulators melt at a specified alarm temperature to provide advance warning and early fire detection. The twin inner conductors fuse together causing a switched circuit. The detecting cable is continuously monitored and provides Open Circuit (Fault) and Short Circuit (Fire) notification by inclusion of an End of Line device (EOL).
- Patol 700-070 Cable – 70°C Fire Alarm Temp, 45°C Max Ambient Heat
- Patol 700-090 Cable – 90°C Fire Alarm Temp, 70°C Max Ambient Heat
- Patol 700-071* Cable – 70°C Fire Alarm Temp, 45°C Max Ambient Heat
- Patol 700-091* Cable – 90°C Fire Alarm Temp, 70°C Max Ambient Heat
*Patol LHDC cables with stainless steel overbraid connected to earth to eliminate electrostatic discharge (ESD).
Patol End of Line (EOL) with integral fire and fault test switches can be mounted in a convenient location to enable routine maintenance/testing of the fire and heat detection systems back to the control room.
HAZARDOUS AREA HEAT & FIRE DETECTION USING PATOL CABLES
Patol LHDC heat detection cables are suitable for use in hazardous areas by means of intrinsically safe (IS) zener barriers and locating controllers in the safe area. Similarly, when the fire protected area is remote from the monitoring equipment, interposing cables can be installed between the monitoring equipment and the heat detection cables.
Patol cables protect hazardous area workspaces from the threat of fire cause by the ignition of flammable gases, liquids or vapours – linear heat detection cables provide fire safety for gas storage tank farms (pictured).
Patol SIL 2 (Safety Integrity Level) approved controllers can be used in conjunction with ATEX approved I.S. barrier to further ensure the safety of the fire and heat detection system for a hazardous area.
IS (Intrinsic Safety) is a protection technique for the safe operation of electronic equipment in potentially explosive atmospheres and hazardous areas using IS Barriers.
➡ Read Patol Guest Blog: Conveyor Fire Detection – Prevents Fires & Downtime With Patol Detection Cables.
There are thousands of conveyor systems all around the globe, all needing a specialist fire detection system capable of stopping any product at the combustion stage from getting further into any plant, holding hoppers, blending/crushing areas or causing damage to the belt itself.
➡ Did you know? Thorne & Derrick are heating specialists with over 20 years experience supplying heaters and heating products for hazardous areas with ATEX and IECEx certifications. Thermon heat trace cable provides optimum temperature maintenance, frost protection and process heating for industrial and hazardous area pipework.