Products
Selftrace cables
Selftrace STS and Selftrace STW
Thermo Selftrace Cables are self regulating heating cables which can be used for freeze protection of water pipelines, roof & gutter heating and process temperature maintenance of pipelines, vessels, tanks, equipments etc., in domestic, commercial and industrial applications
Conergy Solutions offers Selftrace STS and Selftrace STW.
Selftrace - STS is ideally suited for low temperature applications such as freeze protection of potable water pipelines and can be used for installation on the outside surface of the pipelines and inside pipelines.
Selftrace - STW is ideally suited for low temperature applications such as roof and gutter heating and can be used for installation on the roofs and in gutters for snow / ice melting and process temperature maintenance of pipelines, vessels, tanks, equipments etc., in domestic, commercial and industrial applications.
Operating Principle:
Selftrace derives its self-regulating characteristic from the inherent properties of the semi conductive core material.
As the core material temperature increases, the number of conductive paths in the core material decreases, thus decreasing the heat output. As the temperature decreases, the number of conductive paths increases, causing the heat output to increase. This occurs at every point along the cable's length, adjusting the power output to the varying conditions. As the cable self-regulates its heat output, it limits the maximum sheath temperature, thus making it burn-out proof.
Construction:
Thermo Selftrace is a self-regulating parallel circuit heating cable consisting of a semi-conductive heating core extruded over stranded coated copper bus wires. Heating core is covered with TPE jacket to provide electrical insulation, mechanical strength and moisture resistance. A tinned copper braid is provided over the electrical insulation to give a continuous ground path. An outer jacket of TPE / Fluoropolymer is provided for use in corrosive areas.
- Bus wire conductor
- Semi conductive heating core
- Primary insulation jacket
- Metal Braid
- Outer jacket
TECHNICAL SPECIFICATIONS: | |
Bus wire Conductor | Coated Copper |
Heating Element | Semi Conductive core |
Primary Insulation jacket | Thermo Plastic Elastomer (TPE) |
Metal braid | Tinned Copper |
Outer Jacket | Thermo Plastic Elastomer (TPE) or Fluoropolymer |
Minimum Temperature | -30°C |
Maintain Temperature | 65°C |
Max. Exposure Temperature | 65°C |
Bending radius | 35mm (inner side) |
Linear power output | 10, 15, 17, 25, 31 W/m when measured at 10°C |
Supply Voltage | 230V A.C |
Power Output Curves:
Power Output Curves For Selftrace - STW:
Product Range, Circuit Breaker Selection and maximum Lengths: | |||||
Catalog Number | Output at 10Deg C | Maximum Circuit Length | Circuit Breaker Size | Maximum Maintenance Temperature | Maximum Exposure Temperature |
STS - 10* | 10 W/m | 100/60* | 10A | 65°C | 65°C |
STS - 15 | 15 W/m | 72 | 10A | ||
STW - 17 | 17 W/m | 154 | 16A | ||
STW - 25 | 25 W/m | 124 | 20A | ||
STW - 31 | 31 W/m | 110 | 25A |
* STS-10 is offered for inside pipe application with flouropolymer over jacket. Maximum length of heat tracer for inside pipe application is 60M.
Note:
1) Circuit breakers are sized based on start-up temperatures at 10°C.
2) Earth leakage circuit breaker (ELCB) is recommended for each heating circuit. Sensitivity of the ELCB should not exceed 30 mA.
Accessories:
We offer full range of accessories required for power connection, end connection, splice connection and temperature controllers
For more details and business enquiries, please contact us