Third Rail Heating Cable
Thermal-Flex third rail heating cable is ideally suited for higher temperature applications where watt density is required at all times. Our constant wattage heating cable design consists of a nichrome wire wrapped around parallel insulated buss wires. At specific intervals, a short section of insulation is removed from alternating buss wires to create connection nodes for the nichrome wire. The nichrome wire is soldered to the buss conductors creating a network of parallel resistors along the entire length of the heating cable. The cable can be designed to operate at voltages between 120 and 800 Volts AC/DC. The PFA jacket and nickel plated copper braid provide additional protection for use in corrosive and hazardous areas.
Constant wattage heating cables maintain their integrity in temperatures up to 482° F (250° C), and can be exposed to intermittent temperatures of 500° F (260° C) maximum. The heating zones of constant wattage heating cables create an extremely rugged heat source that can withstand thermal shock and movement.
Features
- Flexible
- Superior Thermal Aging Characteristics
- Uniform Heat Output
- Not Subjected to In Rush Current
- Chemically Inert
- Outstanding Weathering Properties
- Resists Flame Ignition and Flame Spread
- Temperature Rating: 482° F (250° C) Maximum Continuous Exposure Temperature
- Applied Voltage: 600 to 750 Volts DC (as required)
- Watt Density: 30-40 Watts per Foot (as required)
Third Rail Heating System
Thermal-Flex third rail heating systems feature a robust, industrial constant wattage heating cable, high temperature fiberglass containment channel and rail clips for secure attachment. Our containment channel and rail clips are offered in a number of different sizes and geometries permitting the system to be used with various types of rail.
